Major Work Activity C - Services, diagnoses and repairs steering, suspension, brake and undercarriage systems, and wheel assemblies

Task C-13 Services, diagnoses and repairs steering systems
Task C-14 Services, diagnoses and repairs suspension systems
Task C-15 Services, diagnoses and repairs brake systems
Task C-16 Services, diagnoses and repairs undercarriage systems
Task C-17 Services, diagnoses and repairs wheel assemblies

Task C-13 Services, diagnoses and repairs steering systems

Task Descriptor

Steering systems are designed to allow the operator to control the direction of the equipment.

Heavy duty equipment technicians diagnose, service and repair steering systems and components in order to ensure the safe and correct operation of the equipment.

C-13.01 - Services steering systems

C-13.01 - Services steering systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-13.01.01P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-13.01.02P	release and isolate stored energy in components	stored energy is released and isolated in components according to manufacturers’ service information
C-13.01.03P	clean components	components are cleaned according to manufacturers’ service information
C-13.01.04P	perform sensory inspections	sensory inspections are performed to identify worn, damaged and defective components
C-13.01.05P	perform measurements	measurements are performed and compared with manufacturers’ service information and according to jurisdictional regulations
C-13.01.06P	check fluid levels	fluid levels are checked to determine if they meet manufacturers’ service information
C-13.01.07P	remove and replace consumables	consumables are removed and replaced according to manufacturers’ service information
C-13.01.08P	recycle and dispose of consumables	consumables are recycled and disposed of according to jurisdictional regulations
C-13.01.09P	lubricate components	components are lubricated according to manufacturers’ service information
C-13.01.10P	adjust and calibrate components	components are adjusted and calibrated according to manufacturers’ service information
C-13.01.11P	perform software updates	software updates are performed according to manufacturers’ service information
C-13.01.12P	document service information	service information is documented according to manufacturers’ requirements for warranty, and for future reference and tracking

Range of Variables

tools and equipment include: flow gauges, pressure gauges, multimeters, electronic service tools, onboard computer, laptop
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
components include: king pins, drag links, hydraulic cylinders, tie rods, power steering components, steering column, control levers, linkages, control valves, steering clutches, steering brakes, hydraulic pump, hydraulic motor, sprockets, planetary system, electrical controls, electronic controls
consumables include: oil, filters, grease

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-13.01.01L	demonstrate knowledge of steering systems, their components, consumables, characteristics, applications and operation	identify types of steering systems and their components and consumables, and describe their characteristics and applications
		describe operating principles of steering systems and their components
		interpret information pertaining to steering systems found in manufacturers’ service information
		describe primary and secondary steering systems
		identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications
		describe steering geometry and alignment
C-13.01.02L	demonstrate knowledge of procedures to service steering systems and their components and consumables	identify tools and equipment used to service steering systems, their components and consumables, and describe their applications and procedures for use
		identify hazards and describe safe work practices to service steering systems
		describe procedures to release and isolate stored energy
		describe procedures to inspect steering systems and their components and consumables
		describe procedures to measure and lubricate steering system components
		describe procedures to remove, replace, recycle and dispose of steering system consumables
		describe procedures to clean components
		describe procedures to service steering systems and their components and consumables
		describe procedures to adjust and calibrate components
		describe procedures to perform software updates
		identify materials that can be reconditioned, reused or recycled
C-13.01.03L	demonstrate knowledge of regulatory requirements pertaining to steering systems	identify standards and jurisdictional regulations pertaining to steering systems
C-13.01.04L	demonstrate knowledge of regulatory requirements pertaining to recycling and disposing of steering system consumables	identify and interpret standards and regulations pertaining to recycling and disposing of steering system consumables
C-13.01.05L	demonstrate knowledge of emerging technologies and practices related to autonomous steering	identify technologies that address risk and reduce accidents, and describe their characteristics and applications

Range of Variables

components include: king pins, drag links, hydraulic cylinders, tie rods, power steering components, steering column, control levers, linkages, control valves, steering clutches, steering brakes, hydraulic pump, hydraulic motor, sprockets, planetary system, electrical controls, electronic controls
consumables include: oil, filters, grease
types of steering systems include: integral, linkage, rack and pinion, hydrostatic, hydraulic, clutch and brake, electric over hydraulic, differential
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
steering geometry and alignment includes: caster, camber, toe
tools and equipment include: flow gauges, pressure gauges, multimeters, electronic service tools, onboard computer, laptop
hazards include: stored energy, crush/pinch points, burns

C-13.02 - Diagnoses steering systems

C-13.02 - Diagnoses steering systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-13.02.01P	identify symptoms of problems	symptoms of problems are identified by consulting with customer or operator
C-13.02.02P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-13.02.03P	perform sensory inspections	sensory inspections are performed to identify conditions
C-13.02.04P	verify complaint and expected performance	complaint and expected performance is verified by comparing equipment operation to manufacturers’ service information
C-13.02.05P	perform diagnostic procedures and tests	diagnostic procedures and tests are performed according to manufacturers’ service information
C-13.02.06P	verify diagnosis	diagnosis is verified by interpreting test results and comparing them to manufacturers’ service information or expected values
C-13.02.07P	remove and disassemble components to identify or confirm problem	components are removed and disassembled to identify or confirm problem
C-13.02.08P	inspect components for conditions	components are inspected for conditions according to manufacturers’ service information
C-13.02.09P	measure components	components are measured to determine if they meet manufacturers’ service information
C-13.02.10P	perform measurements	measurements are performed and compared with manufacturers’ service information according to jurisdictional regulations
C-13.02.11P	perform failure analysis	failure analysis is performed to determine root cause of failure
C-13.02.12P	document test results and inspection findings	test results and inspection findings are documented according to manufacturers’ requirements for warranty, and for future reference and tracking
C-13.02.13P	interpret diagnostic results to determine next steps	diagnostic results are interpreted to determine next steps

Range of Variables

symptoms of problems include: darting, drifting, hard steering, soft steering, leaks, irregular tire or track wear patterns, worn, bent or broken parts, tracking
tools and equipment include: pressure gauges, measuring tools, pry bars, alignment tools, flow gauges, multimeters, electronic service tools, onboard computer, laptop
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
sensory inspections include: looking for leaks, visually inspecting steering components, listening for abnormal noises
conditions include: wear, damage, defects
tests include: performance, pressure, cylinder leakage, motor leakage, cycle time, secondary steering
components include: king pins, drag links, hydraulic cylinders, tie rods, power steering components, steering column, control levers, linkages, control valves, steering clutches, steering brakes, hydraulic pump, hydraulic motor, sprockets, planetary system, electrical controls, electronic controls
next steps include: repairs, component replacement or adjustment, further diagnosis

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-13.02.01L	demonstrate knowledge of steering systems, their components, consumables, characteristics, applications and operation	identify types of steering systems and their components and consumables, and describe their characteristics and applications
		describe operating principles of steering systems and their components
		interpret information pertaining to steering systems found in manufacturers’ service information
		describe primary and secondary steering systems
		identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications
		describe steering geometry and alignment
C-13.02.02L	demonstrate knowledge of procedures to diagnose steering systems and their components	identify tools and equipment used to diagnose steering systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to diagnose steering systems and their components
		describe common causes and symptoms of problems
		describe procedures to inspect steering systems and their components
		describe procedures to teststeering systems and their components
		describe procedures to diagnose steering systems and their components
		identify conditions found while diagnosing steering systems and their components
		identify steps for failure analysis
C-13.02.03L	demonstrate knowledge of emerging technologies and practices related to autonomous steering	identify technologies that address risk and reduce accidents, and describe their characteristics and applications

Range of Variables

components include: king pins, drag links, hydraulic cylinders, tie rods, power steering components, steering column, control levers, linkages, control valves, steering clutches, steering brakes, hydraulic pump, hydraulic motor, sprockets, planetary system, electrical controls, electronic controls
consumables include: oil, filters, grease
types of steering systems include: integral, linkage, rack and pinion, hydrostatic, hydraulic, clutch and brake, electric over hydraulic, differential
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
steering geometry and alignment includes: caster, camber, toe
tools and equipment include: pressure gauges, measuring tools, pry bars, alignment tools, flow gauges, multimeters, electronic service tools, onboard computer, laptop
hazards include: stored energy, crush/pinch points, burns
symptoms of problems include: darting, drifting, hard steering, soft steering, leaks, irregular tire or track wear patterns, worn, bent or broken parts, tracking
conditions include: wear, damage, defects

C-13.03 - Repairs steering systems

C-13.03 - Repairs steering systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-13.03.01P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-13.03.02P	release and isolate stored energy in components	stored energy is released and isolated in components according to manufacturers’ service information
C-13.03.03P	clean components	components are cleaned according to manufacturers’ service information
C-13.03.04P	remove, disassemble and inspect components for conditions	components are removed, disassembled and inspected for conditions according to manufacturers’ service information
C-13.03.05P	select parts and materials	parts and materials are selected according to repair requirements and manufacturers’ service information
C-13.03.06P	follow repair sequence	repair sequence is followed according to manufacturers’ service information
C-13.03.07P	replace components	components are replaced according to manufacturers’ service information
C-13.03.08P	rebuild components	components are rebuilt according to manufacturers’ service information
C-13.03.09P	repair components	components are repaired according to manufacturers’ service information
C-13.03.10P	assemble and install components	components are assembled and installed according to manufacturers’ service information
C-13.03.11P	adjust and calibrate components and parts	components and parts are adjusted and calibrated according to manufacturers’ service information
C-13.03.12P	perform pre-lubrication and bleeding procedures	pre-lubrication and bleeding procedures are performed according to manufacturers’ service information
C-13.03.13P	verify repairs	repairs are verified using methods according to manufacturers’ service information
C-13.03.14P	document repairs	repairs are documented according to manufacturers’ requirements for warranty, liability, future reference and tracking

Range of Variables

tools and equipment include: pressure gauges, measuring tools, pry bars, alignment tools, flow gauges, multimeters, electronic service tools, onboard computer, hand tools, shop tools, laptop
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
components include: king pins, drag links, steering boxes, pitman arms, hydraulic cylinders, tie rods, power steering components, steering column, control levers, linkages, control valves, steering clutches, steering brakes, hydraulic pump, hydraulic motor, sprockets, planetary system, electrical controls, electronic controls
conditions include: wear, damage, defects
methods include: operational testing, front end alignments, sensory observations

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-13.03.01L	demonstrate knowledge of steering systems, their components, characteristics, applications and operation	identify types of steering systems and their components, and describe their characteristics and applications
		describe operating principles of steering systems and their components
		interpret information pertaining to steering systems found in manufacturers’ service information
		identify potential environmental impacts of repair, and describe associated mitigation and prevention measures
		identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications
		describe primary and secondary steering systems
		describe steering geometry and alignment
C-13.03.02L	demonstrate knowledge of procedures to repair steering systems and their components	identify tools and equipment used to repair steering systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to repair steering systems and their components
		describe procedures to release and isolate stored energy
		describe procedures to remove, disassemble, assemble and inspect components
		describe procedures to replace, rebuild or repair components
		describe procedures to adjust and calibrate components
		describe procedures to recycle and dispose of components
		describe methods to verify repairs
		describe procedures to perform software updates
		identify materials that can be reconditioned, reused or recycled
		identify practices that reduce material waste
C-13.03.03L	demonstrate knowledge of regulatory requirements pertaining to steering control systems	identify standards and regulations pertaining to steering control systems
C-13.03.04L	demonstrate knowledge of emerging technologies and practices related to autonomous steering	identify technologies that address risk and reduce accidents, and describe their characteristics and applications

Range of Variables

components include: king pins, drag links, steering boxes, pitman arms, hydraulic cylinders, tie rods, power steering components, steering column, control levers, linkages, control valves, steering clutches, steering brakes, hydraulic pump, hydraulic motor, sprockets, planetary system, electrical controls, electronic controls
types of steering systems include: integral, linkage, rack and pinion, hydrostatic, hydraulic, clutch and brake, electric over hydraulic, differential
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
steering geometry and alignment includes: caster, camber, toe
tools and equipment include: pressure gauges, measuring tools, pry bars, alignment tools, flow gauges, multimeters, electronic service tools, onboard computer, hand tools, shop tools, laptop
hazards include: stored energy, crush/pinch points, burns
methods include: operational testing, front end alignments, sensory observations

Task C-14 Services, diagnoses and repairs suspension systems

Task Descriptor

Suspension systems distribute load throughout the frame and withstand varying surface conditions by absorbing energy. Heavy duty equipment technicians service, diagnose and repair suspension systems to ensure correct equipment operation.

C-14.01 - Services suspension systems

C-14.01 - Services suspension systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-14.01.01P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-14.01.02P	release and isolate stored energy in components	stored energy is released and isolated in components according to manufacturers’ service information
C-14.01.03P	clean components	components are cleaned according to manufacturers’ service information
C-14.01.04P	perform sensory inspections	sensory inspections of suspension are performed to identify worn, damaged and defective components
C-14.01.05P	measure components	components are measured for ride height and bushings for excessive play to determine if they meet manufacturers’ service information
C-14.01.06P	perform measurements	measurements are performed and compared with manufacturers’ service information and according to jurisdictional regulations
C-14.01.07P	check fluid levels and pressure	fluid levels and pressure are checked to determine if they meet manufacturers’ service information
C-14.01.08P	lubricate components	components are lubricated according to manufacturers’ service information
C-14.01.09P	adjust and calibrate components	components are adjusted and calibrated according to manufacturers’ service information
C-14.01.10P	perform software updates	software updates are performed according to manufacturers’ service information
C-14.01.11P	document service information	service information is documented according to manufacturers’ requirements for warranty, and for future reference and tracking

Range of Variables

tools and equipment include: measuring devices, pressure gauges, hand tools, multimeters, electronic service tools, lifting and holding equipment, laptop
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
components include: bolster springs, I-beams, torque rods, ride height valves, shock absorbers, torsion bars, walking beams, U-bolts, axle assemblies, pins, bushings, pneumatic system, hydro-pneumatic struts, rubber blocks, valves, accumulators, cylinders, electrical controls, electronic controls
sensory inspections include: looking for leaks, visually inspecting suspension components, listening for abnormal noises

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-14.01.01L	demonstrate knowledge of suspension systems, their components, characteristics, applications and operation	identify types of suspension systems and their components, and describe their characteristics and applications
		describe operating principles of suspension systems and their components
		interpret information pertaining to suspension systems found in manufacturers’ service information
		identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications
C-14.01.02L	demonstrate knowledge of procedures to service suspension systems and their components	identify tools and equipment used to service suspension systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to service suspension systems and their components
		describe procedures to release and isolate stored energy
		describe procedures to inspect suspension systems and their components
		describe procedures to clean, measure and lubricate suspension system components
		describe procedures to service suspension systems and their components
		describe procedures to adjust and calibrate components
		describe procedures to remove, replace, recycle and dispose of consumables
		describe procedures to perform software updates
		identify materials that can be reconditioned, reused or recycled

Range of Variables

components include: bolster springs, I-beams, torque rods, ride height valves, shock absorbers, torsion bars, walking beams, U-bolts, axle assemblies, pins, bushings, pneumatic system, hydro-pneumatic struts, rubber blocks, valves, accumulators, cylinders, electrical controls, electronic controls
types of suspension systems include: hydro pneumatic (conventional, electronically-controlled), spring, solid block, combination
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
tools and equipment include: measuring devices, pressure gauges, hand tools, multimeters, electronic service tools, lifting and holding equipment, laptop
hazards include: crush/pinch points, pressurized gases and fluids, stored energy

C-14.02 - Diagnoses suspension systems

C-14.02 - Diagnoses suspension systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-14.02.01P	identify symptoms of problems	symptoms of problems are identified by consulting with customer or operator
C-14.02.02P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-14.02.03P	release and isolate stored energy in components	stored energy is released and isolated in components according to manufacturers’ service information
C-14.02.04P	perform sensory inspections	sensory inspections are performed to identify conditions
C-14.02.05P	verify complaint and expected performance	complaint and expected performance is verified by comparing equipment operation to manufacturers’ service information
C-14.02.06P	perform diagnostic procedures and tests	diagnostic procedures and tests are performed according to manufacturers’ service information
C-14.02.07P	verify diagnosis	diagnosis is verified by interpreting test results and comparing them to manufacturers’ service information or expected values
C-14.02.08P	compare test results	test results are compared to manufacturers’ service information or expected values
C-14.02.09P	remove and disassemble components to identify or confirm problem	components are removed and disassembled to identify or confirm problem
C-14.02.10P	inspect components for conditions	components are inspected for conditions according to manufacturers’ service information
C-14.02.11P	measure components	components are measured to determine if they meet manufacturers’ service information
C-14.02.12P	perform measurements	measurements are performed and compared with manufacturers’ service information and according to jurisdictional regulations
C-14.02.13P	perform failure analysis	failure analysis is performed to determine root cause of failure
C-14.02.14P	document test results and inspection findings	test results and inspection findings are documented
C-14.02.15P	interpret diagnostic results to determine next steps	diagnostic results are interpreted to determine next steps

Range of Variables

symptoms of problems include:wandering, drifting, sagging, difficult steering, lack of stability, wear, leakage, cracks, noise, vibration, uneven tire wire
tools and equipment include: measuring devices, pressure gauges, hand tools, multimeters, electronic service tools, lifting and holding equipment, laptop, accumulator charge kits
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
sensory inspections include: looking for leaks, visually inspecting suspension components, listening for abnormal noises
conditions include: wear, damage, defects
tests include: pressure, leak, ride height
components include: bolster springs, I-beams, torque rods, ride height valves, shock absorbers, torsion bars, walking beams, U-bolts, axle assemblies, pins, bushings, pneumatic system, hydro-pneumatic struts, rubber blocks, valves, accumulators, cylinders, electrical control, electronic controls
next steps include: repairs, component replacement or adjustment, further diagnosis

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-14.02.01L	demonstrate knowledge of suspension systems, their components, characteristics, applications and operation	identify types of suspension systems and their components, and describe their characteristics and applications
		describe operating principles of suspension systems and their components
		interpret information pertaining to suspension systems found in manufacturers’ service information
		identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications
		describe wear limits and load capacity
		describe axle applications
C-14.02.02L	demonstrate knowledge of procedures to diagnose suspension systems and their components	identify tools and equipment used to diagnose suspension systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to diagnose suspension systems and their components
		describe common causes and symptoms of problems
		describe procedures to inspect suspension systems and their components
		describe procedures to test suspension systems and their components
		describe procedures to diagnose suspension systems and their components
		identify conditions found while diagnosing suspension systems
		identify steps for failure analysis

Range of Variables

components include: bolster springs, I-beams, torque rods, ride height valves, shock absorbers, torsion bars, walking beams, U-bolts, axle assemblies, pins, bushings, pneumatic system, hydro-pneumatic struts, rubber blocks, valves, accumulators, cylinders, electrical control, electronic controls
types of suspension systems include: hydro pneumatic (conventional, electronically-controlled), spring, solid block, combination
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
axle applications include: steering, drive, auxiliary
tools and equipment include: measuring devices, pressure gauges, hand tools, multimeters, electronic service tools, lifting and holding equipment, laptop, accumulator charge kits
hazards include: crush/pinch points, pressurized gases and fluids, stored energy
symptoms of problems include:wandering, drifting, sagging, difficult steering, lack of stability, wear, leakage, cracks, noise, vibration, uneven tire wire
conditions include: wear, damage, defects

C-14.03 - Repairs suspension systems

C-14.03 - Repairs suspension systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-14.03.01P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-14.03.02P	release and isolate stored energy in components	stored energy is released and isolated in components according to manufacturers’ service information
C-14.03.03P	clean components	components are cleaned according to manufacturers’ service information
C-14.03.04P	remove, disassemble and inspect components for conditions	components are removed, disassembled and inspected for conditions according to manufacturers’ service information
C-14.03.05P	select parts and materials	parts and materials are selected according to repair requirements and manufacturers’ service information
C-14.03.06P	follow repair sequence	repair sequence is followed according to manufacturers’ service information
C-14.03.07P	replace components	components are replaced according to manufacturers’ service information
C-14.03.08P	rebuild components	components are rebuilt according to manufacturers’ service information
C-14.03.09P	repair components	components are repaired according to manufacturers’ service information
C-14.03.10P	assemble and install components	components are assembled and installed according to manufacturers’ service information
C-14.03.11P	adjust and calibrate components and parts	components and parts are adjusted and calibrated according to manufacturers’ service information
C-14.03.12P	perform pre-lubrication and bleeding procedures	pre-lubrication and bleeding procedures are performed according to manufacturers’ service information
C-14.03.13P	verify repairs	repairs are verified using methods according to manufacturers’ service information
C-14.03.14P	document repairs	repairs are documented according to manufacturers’ requirements for warranty, liability, future reference and tracking

Range of Variables

tools and equipment include: measuring devices, pressure gauges, multimeters, electronic service tools, lifting and holding equipment, shop equipment, laptop
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
components include: bolster springs, I-beams, torque rods, ride height valves, shock absorbers, torsion bars, walking beams, U-bolts, axle assemblies, pins, bushings, pneumatic system, hydro-pneumatic struts, rubber blocks, valves, accumulators, cylinders, electrical controls, electronic controls
conditions include: damage, defect, wear
adjust includes: setting ride height valves
methods include: operational testing, load testing, sensory observations

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-14.03.01L	demonstrate knowledge of suspension systems, their components, characteristics, applications and operation	identify types of suspension systems and their components, and describe their characteristics and applications
		describe operating principles of suspension systems and their components
		interpret information pertaining to suspension systems found in manufacturers’ service information
		identify potential environmental impacts of repair, and describe associated mitigation and prevention measures
		identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications
C-14.03.02L	demonstrate knowledge of procedures to repair suspension systems and their components	identify tools and equipment used to repair suspension systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to repair suspension systems and their components
		describe procedures to release and isolate stored energy
		describe procedures to remove, disassemble, assemble and inspect components
		describe procedures to replace, rebuild, or repair suspension systems components
		describe procedures to adjust and calibrate suspension system components
		describe procedures to recycle and dispose of suspension system components
		describe methods to verify repairs
		describe procedures to perform software updates
		identify materials that can be reconditioned, reused or recycled
		identify practices that reduce material waste

Range of Variables

components include: bolster springs, I-beams, torque rods, ride height valves, shock absorbers, torsion bars, walking beams, U-bolts, axle assemblies, pins, bushings, pneumatic system, hydro-pneumatic struts, rubber blocks, valves, accumulators, cylinders, electrical controls, electronic controls
types of suspension systems include: hydro pneumatic (conventional, electronically-controlled), spring, solid block, combination
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
tools and equipment include: measuring devices, pressure gauges, multimeters, electronic service tools, lifting and holding equipment, shop equipment, laptop
hazards include: crush/pinch points, compressed air
adjust includes: setting ride height valves
methods include: operational testing, load testing, sensory observations

Task C-15 Services, diagnoses and repairs brake systems

Task Descriptor

Brake systems slow, stop or park the equipment in a safe and controlled manner by using air, hydraulics or mechanical means in conjunction with electronic controls.

Heavy duty equipment technicians must service, diagnose and repair brake systems to ensure proper function and reduce down time.

C-15.01 - Services brake systems

C-15.01 - Services brake systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-15.01.01P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-15.01.02P	release and isolate stored energy in components	stored energy is released and isolated in components according to manufacturers’ service information
C-15.01.03P	clean components for inspection	components are cleaned for inspection according to manufacturers’ service information
C-15.01.04P	perform sensory inspections	sensory inspections are performed to identify leaks and worn, damaged and defective components
C-15.01.05P	perform measurements	measurements are performed and compared with manufacturers’ service information and according to jurisdictional regulations
C-15.01.06P	check fluid levels	fluid levels are checked to determine if they meet manufacturers’ service information
C-15.01.07P	remove and replace consumables	consumables are removed and replaced according to manufacturers’ service information
C-15.01.08P	recycle and dispose of consumables	consumables are recycled and disposed of according to jurisdictional regulations
C-15.01.09P	adjust brakes and lubricate components	brakes are adjusted and components are lubricated according to manufacturers’ service information
C-15.01.10P	check ABS operation	ABS operation is checked according to manufacturers’ service information
C-15.01.11P	perform software updates	software updates are performed according to manufacturers’ service information
C-15.01.12P	document service information	service information is documented according to manufacturers’ requirements for warranty, and for future reference and tracking

Range of Variables

tools and equipment include: lifting and holding equipment, measuring tools, hand tools, shop tools, electronic service tools, onboard computer, laptop, multimeters
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
components include: pumps, brake valves, brake discs, accumulators, parking brakes, drums, shoes, pads, rotors, cams, slack adjusters, calipers, compressor
sensory inspections include: looking for leaks, visually inspecting brake components, listening for abnormal noises, smelling for overheating
consumables include: fluids, seals, O-rings

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-15.01.01L	demonstrate knowledge of brake systems, their components, consumables, characteristics, applications and operation	identify types of brake systems and their components and consumables, and describe their characteristics and applications
		describe operating principles of brake systems
		interpret information pertaining to brake systems found in manufacturers’ service information
		describe operating principles of ABS and traction control
		identify air brake components, and describe their characteristics and applications
		identify hydraulic brake components, and describe their characteristics and applications
		identify parking brake components, and describe their characteristics and applications
		identify ABS components, and describe their characteristics and applications
		identify traction control systems, and describe their characteristics and applications
		identify warning systems, and describe their characteristics and applications
		identify types of power-assisted hydraulic brakes, and describe their characteristics and applications
C-15.01.02L	demonstrate knowledge of procedures to service brake systems and their components	identify tools and equipment used to service brake systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices pertaining to servicing of brake systems
		describe procedures to release stored energy
		describe procedures to inspect brake systems and their components
		describe procedures to clean components
		describe procedures to service brake systems and their components
		describe procedures to adjust and calibrate components
		describe procedures to remove, replace, recycle and dispose of brake system consumables
		identify materials that can be reconditioned, reused or recycled
		identify practices that reduce material waste
C-15.01.03L	demonstrate knowledge of regulatory requirements pertaining to brake systems	identify and interpret standards and regulations pertaining to brake systems
C-15.01.04L	demonstrate knowledge of emerging technologies and practices related to brake systems	identify technologies that address emissions and pollution, and describe their characteristics and applications

Range of Variables

components include: pumps, brake valves, brake discs, accumulators, parking brakes, drums, shoes, pads, rotors, cams, slack adjusters, calipers, compressor
consumables include: fluids, seals, O-rings
types of brake systems include: air, hydraulic, parking brake, air over hydraulic, mechanical
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
air brake components include: brake chambers, slack adjusters, rotors, S-cams, pins, bushings, supply systems, valves
hydraulic brake components include: valves, cylinders, pumps, pistons
parking brake components include: drums, springs, pistons, friction materials, discs, valves, controls
ABS components include: wiring, ECMs, modulating valves, sensors
tools and equipment include: lifting and holding equipment, measuring tools, hand tools, shop tools, electronic service tools, onboard computer, laptop, multimeters
hazards include: stored energy, hydraulic injection,airborne contaminants, crush/pinch points
emerging technologies include: regenerative braking systems

C-15.02 - Diagnoses brake systems

C-15.02 - Diagnoses brake systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-15.02.01P	identify symptoms of problem	symptoms of problem are identified by consulting with customer or operator
C-15.02.02P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-15.02.03P	perform sensory inspections	sensory inspections are performed to identify conditions
C-15.02.04P	verify complaint and expected performance	complaint and expected performance is verified by comparing equipment operation to manufacturers’ service information
C-15.02.05P	perform diagnostic procedures and tests	diagnostic procedures and tests are performed according to manufacturers’ service information
C-15.02.06P	interpret schematics and verify diagnosis	schematics are interpreted and diagnosis is verified by interpreting test results and comparing them to manufacturers’ service information or expected values
C-15.02.07P	remove and disassemble components to identify or confirm problem	components are removed and disassembled to identify or confirm problem
C-15.02.08P	inspect components for conditions	components are inspected for conditions according to manufacturers’ service information
C-15.02.09P	perform measurements	measurements are performed and compared with manufacturers’ service information and according to jurisdictional regulations
C-15.02.10P	perform failure analysis	failure analysis is performed to determine root cause of failure
C-15.02.11P	document test results and inspection findings	test results and inspection findings are documented according to manufacturers’ requirements for warranty, and for future reference and tracking
C-15.02.12P	interpret diagnostic results to determine next steps	diagnostic results are interpreted to determine next steps

Range of Variables

symptoms of problems include:faulty brake operation,leaks, noise, excessive stopping distance, warning lights on, excessive pressure build time
tools and equipment include: lifting and holding equipment, measuring tools, hand tools, shop tools, electronic service tools, onboard computer, laptop, multimeters, accumulator charge kits
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
sensory inspections include: checking braking performance, checking for warning lights, checking for leaks, smelling for overheating
conditions include: damage, defect, wear
tests include: leak down, performance, operational, leak, pressure
components include: pumps, brake valves, brake discs, accumulators, parking brakes, drums, shoes, pads, rotors, cams, slack adjusters, calipers, compressor
next steps include: repairs, component replacement or adjustment, further diagnosis

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-15.02.01L	demonstrate knowledge of brake systems, their components, consumables, characteristics, applications and operation	identify types of brake systems and their components and consumables, and describe their characteristics and applications
		describe operating principles of brake systems
		interpret information pertaining to brake systems found in manufacturers’ service information
		describe operating principles of ABS and traction control
		identify air brake components, and describe their characteristics and applications
		identify hydraulic brake components, and describe their characteristics and applications
		identify parking brake components, and describe their characteristics and applications
		identify ABS components, and describe their characteristics and applications
		identify traction control systems, and describe their characteristics and applications
		identify warning systems, and describe their characteristics and applications
		identify types of power-assisted hydraulic brakes, and describe their characteristics and applications
C-15.02.02L	demonstrate knowledge of procedures to diagnose brake systems and their components	identify tools and equipment used to diagnose brake systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to diagnose brake systems
		describe common causes and symptoms of problems
		describe procedures to inspect brake systems and their components
		describe procedures to test brake systems and their components
		describe procedures to diagnose brake systems and their components
		identify conditions found while diagnosing brake systems and their components
		identify steps for failure analysis
		identify practices that reduce material waste
		identify materials that can be reconditioned, reused or recycled
C-15.02.03L	demonstrate knowledge of regulatory requirements pertaining to brake systems	identify and interpret standards and regulations pertaining to brake systems
C-15.02.03L	demonstrate knowledge of emerging technologies and practices related to brake systems	identify technologies that address emissions and pollution, and describe their characteristics and applications

Range of Variables

components include: pumps, brake valves, brake discs, accumulators, parking brakes, drums, shoes, pads, rotors, cams, slack adjusters, calipers, compressor
consumables include: friction materials, fluids, drums, discs, plates
types of brake systems include: air, hydraulic, parking brake, air over hydraulic, mechanical
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
air brake components include: brake chambers, slack adjusters, rotors, S-cams, pins, bushings, supply systems, valves
hydraulic brake components include: valves, cylinders, pumps, pistons
parking brake components include: drums, springs, pistons, friction materials, discs, valves, controls
ABS components include: wiring, ECMs, modulating valves, sensors
tools and equipment include: lifting and holding equipment, measuring tools, hand tools, shop tools, electronic service tools, onboard computer, laptop, multimeters, accumulator charge kits
hazards include: stored energy, hydraulic injection,airborne contaminants, crush/pinch points
symptoms of problems include:faulty brake operation,leaks, noise, excessive stopping distance, warning lights on, excessive pressure build time
conditions include: damage, defect, wear
emerging technologies include: regenerative braking systems

C-15.03 - Repairs brake systems

C-15.03 - Repairs brake systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-15.03.01P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-15.03.02P	release and isolate stored energy in components	stored energy is released and isolated in components according to manufacturers’ service information
C-15.03.03P	clean components	components are cleaned according to manufacturers’ service information
C-15.03.04P	remove, disassemble and inspect components for conditions	components are removed, disassembled and inspected for conditions according to manufacturers’ service information
C-15.03.05P	select parts and materials	parts and materials are selected according to repair requirements and manufacturers’ service information
C-15.03.06P	follow repair sequence	repair sequence is followed according to manufacturers’ service information
C-15.03.07P	assemble and install components	components are assembled and installed according to manufacturers’ service information
C-15.03.08P	replace components	components are replaced according to manufacturers’ service information
C-15.03.09P	rebuild components	components are rebuilt according to manufacturers’ service information
C-15.03.10P	repair components	components are repaired according to manufacturers’ service information
C-15.03.11P	reassemble components and perform measurements	components are reassembled and measurements are performed according to manufacturers’ service information
C-15.03.12P	adjust and calibrate components and parts	components and parts are adjusted and calibrated according to manufacturers’ service information
C-15.03.13P	perform pre-lubrication, pressure build-up, break-in and bleeding procedures	pre-lubrication, pressure build-up, break-in and bleeding procedures are performed according to manufacturers’ service information
C-15.03.14P	verify repairs	repairs are verified using methods according to manufacturers’ service information
C-15.03.15P	document repairs	repairs are documented according to manufacturers’ requirements for warranty, liability, future reference and tracking

Range of Variables

tools and equipment include: lifting and holding equipment, measuring tools, hand tools, shop tools, electronic service tools, onboard computer, laptop, multimeters, accumulator charge kits
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
components include: pumps, brake valves, brake discs, accumulators, parking brakes, drums, shoes, pads, rotors, cams, slack adjusters, calipers, compressors
conditions include: damage, defect, wear
methods include: operational testing, sensory observations

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-15.03.01L	demonstrate knowledge of brake systems, their components, consumables, characteristics, applications and operation	identify types of brake systems and their components and consumables, and describe their characteristics and applications
		describe operating principles of brake systems
		interpret information pertaining to brake systems found in manufacturers’ service information
		describe operating principles of ABS and traction control
		identify air brake components, and describe their characteristics and applications
		identify hydraulic brake components, and describe their characteristics and applications
		identify parking brake components, and describe their characteristics and applications
		identify ABS components, and describe their characteristics and applications
		identify traction control systems, and describe their characteristics and applications
		identify warning systems, and describe their characteristics and applications
		identify types of power-assisted hydraulic brakes, and describe their characteristics and applications
C-15.03.02L	demonstrate knowledge of procedures to repair brake systems and their components	identify tools and equipment used to repair brake systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to repair brake systems
		describe procedures to release and isolate stored energy
		describe procedures to remove, disassemble, assemble and inspect components
		describe procedures to replace, rebuild or repair components
		describe procedures to adjust and calibrate components
		describe procedures to recycle and dispose of components
		describe methods to verify repairs
		identify materials that can be reconditioned, reused or recycled
		identify practices that reduce material waste
C-15.03.03L	demonstrate knowledge of regulatory requirements pertaining to brake systems	identify and interpret standards and regulations pertaining to brake systems
C-15.03.03L		identify jurisdictional requirements for operational testing and road worthiness
C-15.03.04L	demonstrate knowledge of emerging technologies and practices related to brake systems	identify technologies that address emissions and pollution, and describe their characteristics and applications

Range of Variables

components include: pumps, brake valves, brake discs, accumulators, parking brakes, drums, shoes, pads, rotors, cams, slack adjusters, calipers, compressors
consumables include: friction materials, fluids, drums, discs, plates
types of brake systems include: air, hydraulic, parking brake, air over hydraulic, mechanical
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
air brake components include: brake chambers, slack adjusters, rotors, S-cams, pins, bushings, supply systems, valves
hydraulic brake components include: valves, cylinders, pumps, pistons
parking brake components include: drums, springs, pistons, friction materials, discs, valves, controls
ABS components include: wiring, ECMs, modulating valves, sensors
tools and equipment include: lifting and holding equipment, measuring tools, hand tools, shop tools, electronic service tools, onboard computer, laptop, multimeters, accumulator charge kits
hazards include: stored energy, hydraulic injection,airborne contaminants, crush/pinch points
methods include: operational testing, sensory observations
emerging technologies include: regenerative braking systems

Task C-16 Services, diagnoses and repairs undercarriage systems

Task Descriptor

An undercarriage system is a supporting framework that includes steel and rubber track systems that provides mobility. Heavy duty equipment technicians must service, diagnose and repair undercarriage systems to ensure proper function and reduce down time.

C-16.01 - Services undercarriage systems

C-16.01 - Services undercarriage systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-16.01.01P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-16.01.02P	release and isolate stored energy in components	stored energy is released and isolated in components according to manufacturers’ service information
C-16.01.03P	clean components	components are cleaned according to manufacturers’ service information
C-16.01.04P	perform sensory inspections	sensory inspections are performed to identify leaks and worn, damaged and defective components
C-16.01.05P	perform measurements	measurements are performed and compared with manufacturers’ service information and according to jurisdictional regulations
C-16.01.06P	check fluid levels	fluid levels are checked to determine if they meet manufacturers’ service information
C-16.01.07P	remove and replace consumables	consumables are removed and replaced according to manufacturers’ service information
C-16.01.08P	recycle and dispose of consumables	consumables are recycled and disposed of according to jurisdictional regulations
C-16.01.09P	lubricate components	components are lubricated according to manufacturers’ service information
C-16.01.10P	adjust components	components are adjusted according to manufacturers’ service information
C-16.01.11P	document service information	service information is documented according to manufacturers’ requirements for warranty, and for future reference and tracking

Range of Variables

tools and equipment include: lifting and holding equipment, shop tools, hand tools, measuring tools, laptop, multimeters
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
components include: tracks, frame, rollers, bogies, idlers, sprockets, pins, bushings, mounting hardware, guards, adjusting mechanism, equalizer bar, pivot shaft, recoil spring, related fasteners, track tensioner
measurements include:track tension, undercarriage component wear
consumables include: related fasteners, fluids

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-16.01.01L	demonstrate knowledge of undercarriage systems, their components, consumables, characteristics, applications and operation	identify types of undercarriage systems and their components and consumables, and describe their characteristics and applications
		describe operating principles of undercarriage systems and their components
		interpret information pertaining to undercarriage systems found in manufacturers’ service information
		identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications
C-16.01.02L	demonstrate knowledge of procedures to service undercarriage systems and their components	identify tools and equipment used to service undercarriage systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to service undercarriage systems
		describe procedures to release and isolate stored energy
		describe procedures to inspect undercarriage systems and their components
		describe procedures to clean components
		describe procedures to service undercarriage systems and their components
		describe procedures to adjust components
		describe procedures to remove, replace, recycle and dispose of consumables
		identify components that can be reconditioned, reused or recycled
		identify practices that reduce material waste

Range of Variables

components include: tracks, frame, rollers, bogies, idlers, sprockets, pins, bushings, mounting hardware, guards, adjusting mechanism, equalizer bar, pivot shaft, recoil spring, related fasteners, track tensioner
consumables include: related fasteners, fluids
types of undercarriage systems include: steel, rubber
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
tools and equipment include: lifting and holding equipment, shop tools, hand tools, measuring tools, laptop, multimeters
hazards include: crush/pinch points, heavy components, stored energy, movement of parts or equipment

C-16.02 - Diagnoses undercarriage systems

C-16.02 - Diagnoses undercarriage systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-16.02.01P	identify symptoms of problems	symptoms of problems are identified by consulting with customer or operator
C-16.02.02P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-16.02.03P	perform sensory inspections	sensory inspectionsare performed to identify conditions
C-16.02.04P	verify complaint and expected performance	complaint and expected performance is verified by comparing equipment operation to manufacturers’ service information
C-16.02.05P	perform measurements	measurements are performed and compared with manufacturers’ service information
C-16.02.06P	verify diagnosis	diagnosis is verified by interpreting measurements and comparing them to manufacturers’ service information or expected values
C-16.02.07P	clean components	components are cleaned according to manufacturers’ service information
C-16.02.08P	remove and disassemble components to identify or confirm problem	components are removed and disassembled to identify or confirm problem
C-16.02.09P	inspect components for conditions	components are inspected for conditions according to manufacturers’ service information
C-16.02.10P	perform failure analysis	failure analysis is performed to determine root cause of failure
C-16.02.11P	document measurements and inspection findings	measurements and inspection findings are documented according to manufacturers’ requirements for warranty, and for future reference and tracking
C-16.02.12P	interpret diagnostic results to determine next steps	diagnostic results are interpreted to determine next steps

Range of Variables

symptoms of problems include: wear, cuts, cracks, leaks, breakage, track is out of alignment, misaligned carrier rollers and idlers
tools and equipment include: lifting and holding equipment, shop tools, hand tools, measuring tools laptop, multimeters
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
conditions include: wear, damage, defects
measurements include: pin wear, bushing wear, track pad wear, idler and roller wear, sprocket wear, track tension
components include: tracks, frame, rollers, bogies, idlers, sprockets, pins, bushings, mounting hardware, guards, adjusting mechanism, equalizer bar, pivot shaft, recoil spring, related fasteners, track tensioner
next steps include: repairs, component replacement or adjustment, further diagnosis

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-16.02.01L	demonstrate knowledge of undercarriage systems, their components, characteristics, applications and operation	identify types of undercarriage systems and their components, and describe their characteristics and applications
		describe operating principles of undercarriage systems
		interpret information pertaining to undercarriage systems found in manufacturers’ service information
		identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications
C-16.02.02L	demonstrate knowledge of procedures to diagnose undercarriage systems and their components	identify tools and equipment used to diagnose undercarriage systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to diagnose undercarriage systems
		describe common causes and symptoms of problems
		describe procedures to inspect undercarriage systems and their components
		describe procedures to measure undercarriage system components
		describe procedures to diagnose undercarriage systems and their components
		identify conditions found while diagnosing undercarriage systems
		identify steps for failure analysis
		identify practices that reduce material waste
		identify materials that can be reconditioned, reused or recycled

Range of Variables

components include: tracks, frame, rollers, bogies, idlers, sprockets, pins, bushings, mounting hardware, guards, adjusting mechanism, equalizer bar, pivot shaft, recoil spring, related fasteners, track tensioner
types of undercarriage systems include: steel, rubber
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
tools and equipment include: lifting and holding equipment, shop tools, hand tools, measuring tools laptop, multimeters
hazards include: crush/pinch points, heavy components, stored energy, movement of parts or equipment
symptoms of problems include: wear, cuts, cracks, leaks, breakage, track is out of alignment, misaligned carrier rollers and idlers
conditions include: wear, damage, defects

C-16.03 - Repairs undercarriage systems

C-16.03 - Repairs undercarriage systems
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-16.03.01P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-16.03.02P	release and isolate stored energy in components	stored energy is released and isolated in components according to manufacturers’ service information
C-16.03.03P	clean components	components are cleaned according to manufacturers’ service information
C-16.03.04P	remove, disassemble and inspect components for conditions	components are removed, disassembled and inspected for conditions according to manufacturers’ service information
C-16.03.05P	select parts and materials	parts and materials are selected according to repair requirements and manufacturers’ service information
C-16.03.06P	follow repair sequence	repair sequence is followed according to manufacturers’ service information
C-16.03.07P	assemble and install components	components are assembled and installed according to manufacturers’ service information
C-16.03.08P	replace components	components are replaced according to manufacturers’ service information
C-16.03.09P	rebuild components	components are rebuilt according to manufacturers’ service information
C-16.03.10P	repair components	components are repaired according to manufacturers’ service information
C-16.03.11P	reassemble components and perform measurements	components are reassembled and measurements are performed according to manufacturers’ service information
C-16.03.12P	adjust components and parts	components and parts are adjusted according to manufacturers’ service information
C-16.03.13P	verify repairs	repairs are verified using methods according to manufacturers’ service information
C-16.03.14P	document repairs	repairs are documented according to manufacturers’ requirements for warranty, liability, future reference and tracking

Range of Variables

tools and equipment include: lifting and holding equipment, shop tools, hand tools, measuring tools laptop, multimeters
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
components include: tracks, frame, rollers, bogies, idlers, sprockets, pins, bushings, mounting hardware, guards, adjusting mechanism, equalizer bar, pivot shaft, recoil spring, related fasteners, track tensioner
conditions include: damage, defect, wear
methods include: operational testing, sensory observations

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-16.03.01L	demonstrate knowledge of undercarriage systems, their components, characteristics, applications and operation	identify types of undercarriage systems and their components, and describe their characteristics and applications
		describe operating principles of undercarriage systems
		interpret information pertaining to undercarriage systems found in manufacturers’ service information
		identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications
C-16.03.02L	demonstrate knowledge of procedures to repair undercarriage systems and their components	identify tools and equipment used to repair undercarriage systems and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to repair undercarriage systems
		describe procedures to release and isolate stored energy
		describe procedures to remove, disassemble, assemble and inspect components
		describe procedures to replace, rebuild, or repair components
		describe procedures to adjust components
		describe procedures to recycle and dispose of components
		describe methods to verify repairs
		identify materials that can be reconditioned, reused or recycled
		identify practices that reduce material waste

Range of Variables

components include: tracks, frame, rollers, bogies, idlers, sprockets, pins, bushings, mounting hardware, guards, adjusting mechanism, equalizer bar, pivot shaft, recoil spring, related fasteners, track tensioner
types of undercarriage systems include: steel, rubber
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
tools and equipment include: lifting and holding equipment, shop tools, hand tools, measuring tools laptop, multimeters
hazards include: crush/crush/pinch points, heavy components, stored energy, movement of parts or equipment
methods include: operational testing, sensory observations

Task C-17 Services, diagnoses and repairs wheel assemblies

Task Descriptor

Wheel assemblies are composed of tires, rims and hubs and allows equipment to be mobile.

Heavy duty equipment technicians service, diagnose and repair tires, rims and hubs to ensure proper function and reduce down time.

C-17.01 - Services wheel assemblies

C-17.01 - Services wheel assemblies
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-17.01.01P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-17.01.02P	release stored energy in components	stored energy is released in components according to manufacturers’ service information
C-17.01.03P	clean components for inspection	components are cleaned for inspection according to manufacturers’ service information
C-17.01.04P	perform sensory inspections	sensory inspections are performed to identify worn,damaged and defective components
C-17.01.05P	perform measurements on tires	measurements are performed and compared with manufacturers’ service information
C-17.01.06P	perform measurements on hub components	measurements are performed and compared with manufacturers’ service information and according to jurisdictional requirements
C-17.01.07P	remove and replace consumables	consumables are removed and replaced according to manufacturers’ service information
C-17.01.08P	recycle and dispose of consumables	consumables are recycled and disposed of according to jurisdictional regulations
C-17.01.09P	lubricate hub components	hub components are lubricated according to manufacturers’ service information
C-17.01.10P	adjust tire pressure	tire pressure is adjusted according to manufacturers’ service information
C-17.01.11P	torque fasteners	fasteners are torqued according to manufacturers’ service information
C-17.01.12P	identify mismatched tires	mismatched tires are identified by size, design and tread depth
C-17.01.13P	perform software updates	software updates are performed according to manufacturers’ service information
C-17.01.14P	document service information	service information is documented according to manufacturers’ requirements for warranty, and for future reference and tracking

Range of Variables

tools and equipment include: dial indicators, torque wrenches, TPMS, tread depth gauges, tire pressure gauges, tire inflation cages, inflation tools, hand tools, shop tools, tire-handling equipment, laptop, multimeters
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
worn,damaged and defective components include: oil leaks from hubs, air leaks from tires, tire wear and damage, damaged rims, broken studs, worn locks, worn spacers
measurements(on tires) include: tread depth for wear, air pressure for air leaks
measurements(on hub components) include: bearing endplay or preload, fastener torque, pilot pads
consumables include: fluids, tires
hub components include: studs, nuts, spacers, bearings, races, seals

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-17.01.01L	demonstrate knowledge of wheel assemblies, their components, characteristics, applications and operation	identify types of tires, and describe their characteristics and applications
		identify types of rims and their components, and describe their characteristics and applications
		identify types of hubs and their components, and describe their characteristics and applications
		describe operating principles of wheel assemblies and their components
		interpret information pertaining to wheel assemblies, and their components found in manufacturers’ service information
		describe tire load ranges, pressures, profiles and sizes
		describe steering and drive tires
C-17.01.02L	demonstrate knowledge of procedures to service wheel assemblies and their components	identify tools and equipment used to service wheel assemblies, and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices to service inflation and removal of tires
		describe procedures to release stored energy
		describe procedures to inspect wheel assemblies, and their components
		describe procedures to measure tire and hub components
		describe procedures to clean components
		describe procedures to service wheel assembly components
		describe procedures to remove, replace, recycle and dispose of consumables
		describe procedures to perform software updates
		identify torque values found in manufacturers’ service information
		describe tire inflation methods
		describe tire removal and installation procedures
C-17.01.03L	demonstrate knowledge of training requirements to remove, inspect and mount tires, wheels and hubs	identify training requirements to remove, inspect and mount tires, wheels and hubs
C-17.01.04L	demonstrate knowledge of regulatory requirements pertaining to inspection and mounting of tires, wheels and hubs	identify and interpret standards and regulations pertaining to inspection and mounting of tires, wheels and hubs
C-17.01.05L	demonstrate knowledge of air pressure monitoring and air regulating systems	describe operation of tire pressure monitoring systems (TPMS) and air regulating systems

Range of Variables

components include: rims, spacers, wedges, valve stems, tires, lock rings, seals, tubes, hubs, bearings
types of tires include: radial, bias, solid, pneumatic, tube or tubeless
types of rims include: steel, multi-piece
types of hubs include: spoked, hub pilot
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
tools and equipment include: dial indicators, torque wrenches, TPMS, tread depth gauges, tire pressure gauges, tire inflation cages, inflation tools, hand tools, shop tools, tire-handling equipment, laptop, multimeters
hazards include: stored energy, over inflation, worn or sprung lock ring, crush/pinch points
consumables include: fluids, tires
tire inflation methods include: liquid-ballast, nitrogen, air, compound-filled (foam, rubber)

C-17.02 - Diagnoses wheel assemblies

C-17.02 - Diagnoses wheel assemblies
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	yes	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-17.02.01P	identify symptoms of problems	symptoms of problems are identified by consulting with customer or operator
C-17.02.02P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-17.02.03P	perform sensory inspections	sensory inspectionsare performed to identify conditions
C-17.02.04P	verify complaint and expected performance	complaint and expected performance is verified by comparing equipment operation to manufacturers’ service information
C-17.02.05P	perform diagnostic procedures and tests	diagnostic procedures and tests are performed according to manufacturers’ service information
C-17.02.06P	verify diagnosis	diagnosis is verified by interpreting test results and comparing them to manufacturers’ service information or expected values
C-17.02.07P	clean components	components are cleaned according to manufacturers’ service information
C-17.02.08P	inspect components for conditions	components are removed, disassembled and inspected for conditions according to manufacturers’ service information
C-17.02.09P	perform measurements	measurements are performed and compared with manufacturers’ service information and according to jurisdictional regulations
C-17.02.10P	perform failure analysis	failure analysis is performed to determine root cause of failure
C-17.02.11P	document test results and inspection findings	test results and inspection findings are documented according to manufacturers’ requirements for warranty, and for future reference and tracking
C-17.02.12P	interpret diagnostic results to determine next steps	diagnostic results are interpreted to determine next steps

Range of Variables

symptoms of problems include:wandering, drifting, difficult steering, lack of stability, shaking, wheel hop, shimmy, vibrations, leaks, cracks
tools and equipment include: dial indicators, torque wrenches, TPMS, tread depth gauges, tire pressure gauges, tire inflation cages, inflation tools, hand tools, shop tools, tire-handling equipment, laptop, multimeters
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
conditions include: damage, defect, wear, leaks
tests include: tire pressure, wheel fastener torque
components include: rims, spacers, wedges, valve stems, tires, lock rings, seals, tubes, hubs, bearings
measurements include: torque, air pressure, tread depths, wheel bearing endplay or preload
next steps include: repairs, component replacement or adjustment, further diagnosis

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-17.02.01L	demonstrate knowledge of wheel assemblies, their components, characteristics, applications and operation	identify types of tires, and describe their characteristics and applications
		identify types of rims and their components, and describe their characteristics and applications
		identify types of hubs and their components, and describe their characteristics and applications
		describe operating principles of wheel assemblies and their components
		interpret information pertaining to wheel assemblies, and their components found in manufacturers’ service information
		describe tire load ranges, pressures, profiles and sizes
		describe steering and drive tires
		describe effects of related systems on wheel assemblies
C-17.02.02L	demonstrate knowledge of procedures to diagnose wheel assemblies and their components	identify tools and equipment used to diagnose wheel assemblies, and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices pertaining to diagnosing wheel assemblies, and their components
		describe common causes and symptoms of problems
		describe procedures to inspect wheel assemblies and their components
		describe procedures to test wheel assemblies and their components
		describe procedures to diagnose wheel assemblies and their components
		identify conditions found while diagnosing wheel assemblies and their components
		identify steps for failure analysis
		describe tire inflation methods
		describe tire removal and installation procedures
		identify practices that reduce material waste
		identify materials that can be reconditioned, reused or recycled
C-17.02.03L	demonstrate knowledge of jurisdictional regulations regarding out-of-service specifications	describe jurisdictional regulations regarding out-of-service specifications

Range of Variables

types of tires include: radial, bias, solid, pneumatic, tube or tubeless
types of rims include: steel, multi-piece
types of hubs include: spoked, hub pilot
components include: rims, spacers, wedges, valve stems, tires, lock rings, seals, tubes, hubs, bearings
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
related systems include: steering, suspension, brake systems
tools and equipment include: dial indicators, torque wrenches, TPMS, tread depth gauges, tire pressure gauges, tire inflation cages, inflation tools, hand tools, shop tools, tire-handling equipment, laptop, multimeters
hazards include: stored energy, over inflation, worn or sprung lock ring, crush/pinch points
symptoms of problems include:wandering, drifting, difficult steering, lack of stability, shaking, wheel hop, shimmy, vibrations, leaks, cracks
conditions include: damage, defect, wear, leaks
tire inflation methods include: liquid-ballast, nitrogen, air, compound-filled (foam, rubber)

C-17.03 - Repairs wheel assemblies

C-17.03 - Repairs wheel assemblies
NL	NS	PE	NB	QC	ON	MB	SK	AB	BC	NT	YT	NU
yes	yes	yes	yes	yes	yes	yes	no	yes	yes	NV	NV	NV

Skills
Reference Code	Performance Criteria	Evidence of Attainment
C-17.03.01P	select and use tools and equipment	tools and equipment are selected and used according to task and manufacturers’ service information
C-17.03.02P	release stored energy in components	stored energy is released in components according to manufacturers’ service information
C-17.03.03P	clean components	components are cleaned according to manufacturers’ service information
C-17.03.04P	remove, disassemble and inspect components for conditions	components are removed, disassembled and inspected for conditions according to manufacturers’ service information
C-17.03.05P	select parts and materials	parts and materials are selected according to repair requirements and manufacturers’ service information
C-17.03.06P	follow repair sequence	repair sequence is followed according to manufacturers’ service information
C-17.03.07P	assemble and install components	components are assembled and installed according to manufacturers’ service information
C-17.03.08P	replace components	components are replaced according to manufacturers’ service information
C-17.03.09P	rebuild hub components	hub components are rebuilt according to manufacturers’ service information
C-17.03.10P	repair components	components are repaired according to manufacturers’ service information
C-17.03.11P	reassemble components and perform measurements	components are reassembled and measurements are performed according to manufacturers’ service information
C-17.03.12P	adjustand calibrate components and parts	components and parts are adjusted and calibrated according to manufacturers’ service information
C-17.03.13P	adjust bearing endplay or preload	bearing endplay or preload is adjusted according to manufacturers’ service information
C-17.03.14P	adjust oil level	oil level is adjusted according to manufacturers’ service information
C-17.03.15P	adjust air pressure and torque on wheel assemblies	air pressure and torque are adjusted on wheel assemblies according to manufacturers’ service information
C-17.03.16P	measure runout	runout is measured according to manufacturers’ service information
C-17.03.17P	verify repairs	repairs are verified using methods according to manufacturers’ service information
C-17.03.18P	document repairs	repairs are documented according to manufacturers’ requirements for warranty, liability, future reference and tracking

Range of Variables

tools and equipment include: dial indicators, torque wrenches, TPMS, tread depth gauges, tire pressure gauges, tire inflation cages, inflation tools, hand tools, shop tools, tire-handling equipment, laptop, multimeters
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
components include: rims, spacers, wedges, valve stems, tires, lock rings, seals, tubes, hubs, bearings
conditions include: damage, defect, wear
hub components include: studs, nuts, spacers, bearings, races, seals
methods include: wheel alignment, operational testing, checking for end play or pre-load

Knowledge
Reference Code	Learning Outcomes	Learning Objectives
C-17.03.01L	demonstrate knowledge of wheel assemblies, their components, characteristics, applications and operation	identify types of tires, and describe their characteristics and applications
		identify types of rims and their components, and describe their characteristics and applications
		identify types of hubs and their components, and describe their characteristics and applications
		describe operating principles of wheel assemblies and their components
		interpret information pertaining to wheel assemblies, and their components found in manufacturers’ service information
		describe tire load ranges, pressures, profiles and sizes
		describe steering and drive tires
		describe wear limits and patterns, and measurement methodology
		describe effects of related systems on wheel assemblies
		identify potential environmental impacts of repair, and describe associated mitigation and prevention measures
		identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications
C-17.03.02L	demonstrate knowledge of procedures to repair wheel assemblies, and their components	identify tools and equipment used to repair wheel assemblies, and their components, and describe their applications and procedures for use
		identify hazards and describe safe work practices pertaining to repairing wheel assemblies and their components
		describe procedures to release stored energy
		describe procedures to remove, disassemble, assemble and inspect components
		describe procedures to replace, rebuild or repair components
		describe procedures to adjust and calibrate components
		describe procedures to recycle and dispose of components
		describe tire inflation methods
		describe tire removal and installation procedures
		describe methods to verify repairs
		describe procedures to perform software updates
		identify practices that reduce material waste
		identify materials that can be reconditioned, reused or recycled
C-17.03.03L	demonstrate knowledge of training requirements to remove, inspect and mount tires, wheels and hubs	identify training requirements to remove, inspect and mount tires, wheels and hubs
C-17.03.04L	demonstrate knowledge of inspection requirements related to tire size	identify inspection requirements related to tire size
C-17.03.05L	demonstrate knowledge of regulatory requirements pertaining to inspection and mounting of tires, wheels and hubs	identify and interpret standards and regulations pertaining to inspection and mounting of tires, wheels and hubs
C-17.03.06L	demonstrate knowledge of air pressure monitoring and air regulating systems	describe operation of TPMS and air regulating systems

Range of Variables

components include: rims, spacers, wedges, valve stems, tires, lock rings, seals, tubes, hubs, bearings
types of tires include: radial, bias, solid, pneumatic, tube or tubeless
types of rims include: steel, multi-piece
types of hubs include: spoked, hub pilot
manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
related systems include: steering, suspension, brake systems
tools and equipment include: dial indicators, torque wrenches, TPMS, tread depth gauges, tire pressure gauges, tire inflation cages, inflation tools, hand tools, shop tools, tire-handling equipment, laptop, multimeters
hazards include: stored energy, over inflation, worn or sprung lock ring, crush/pinch points
tire inflation methods include: liquid-ballast, nitrogen, air, compound-filled (foam, rubber)
methods include: wheel alignment, operational testing, checking for end play or pre-load

Major Work Activity C - Services, diagnoses and repairs steering, suspension, brake and undercarriage systems, and wheel assemblies

Table of Contents

Task C-13 Services, diagnoses and repairs steering systems

Task Descriptor

C-13.01 - Services steering systems

Range of Variables

Range of Variables

C-13.02 - Diagnoses steering systems

Range of Variables

Range of Variables

C-13.03 - Repairs steering systems

Range of Variables

Range of Variables

Task C-14 Services, diagnoses and repairs suspension systems

Task Descriptor

C-14.01 - Services suspension systems

Range of Variables

Range of Variables

C-14.02 - Diagnoses suspension systems

Range of Variables

Range of Variables

C-14.03 - Repairs suspension systems

Range of Variables

Range of Variables

Task C-15 Services, diagnoses and repairs brake systems

Task Descriptor

C-15.01 - Services brake systems

Range of Variables

Range of Variables

C-15.02 - Diagnoses brake systems

Range of Variables

Range of Variables

C-15.03 - Repairs brake systems

Range of Variables

Range of Variables

Task C-16 Services, diagnoses and repairs undercarriage systems

Task Descriptor

C-16.01 - Services undercarriage systems

Range of Variables

Range of Variables

C-16.02 - Diagnoses undercarriage systems

Range of Variables

Range of Variables

C-16.03 - Repairs undercarriage systems

Range of Variables

Range of Variables

Task C-17 Services, diagnoses and repairs wheel assemblies

Task Descriptor

C-17.01 - Services wheel assemblies

Range of Variables

Range of Variables

C-17.02 - Diagnoses wheel assemblies

Range of Variables

Range of Variables

C-17.03 - Repairs wheel assemblies

Range of Variables

Range of Variables