Table of contents
Task B-6 Diagnoses engines and engine support systems
Task descriptor
The proper diagnosis of engines and supporting systems is critical to ensure optimum engine performance, efficiency and emission compliance. Agricultural equipment technicians need to understand the complexity of the engine and related systems that affect its operation.
B-6.01 Diagnoses base engines
B-6.01 Diagnoses base engines
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-6.01.01P |
identify symptoms of problem |
symptoms of problem are identified by consulting with customer or operator |
| B-6.01.02P |
perform sensory inspections to identify faults |
sensory inspections are performed to identify faults |
| B-6.01.03P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-6.01.04P |
remove components for access |
components are removed for access |
| B-6.01.05P |
perform tests |
tests are performed according to manufacturers’ specifications |
| B-6.01.06P |
interpret test results and compare to manufacturers’ specifications |
test results are interpreted and compared to manufacturers’ specifications |
| B-6.01.07P |
determine required actions |
required actions are determined |
Range of variables
- symptoms of problem include: leaks, noises, no start, hard start, low power
- faults include: intake, exhaust and fluid leaks, abnormal noises
- tools and equipment include: temperature measuring devices, compression testers, measuring instruments, pressure measuring devices, dynamometer, fluid analysis sampling devices
- components (removed for access) include: panels, shields, hoods
- tests include: compression, cylinder leakage, oil pressure, dynamometer checks, fluid sampling for analysis
- required actions include: repairs; component replacement of crankshaft bearings, pistons and liners, head gaskets, camshafts, cylinder heads, intake and exhaust valves; further diagnosis
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-6.01.01L |
demonstrate knowledge of base engines, their components, characteristics, applications and operation |
identify types of base engines and their components, and describe their characteristics and applications |
| describe theory of engine operation |
| B-6.01.02L |
demonstrate knowledge of diagnosing base engines |
identify tools and equipment used to diagnose base engines, and describe their applications and procedures for use |
| describe procedures to diagnose base engines |
| identify hazards and describe safe work practices while diagnosing base engines |
| identify inspections and tests conducted to diagnose base engines |
| identify types of faults identified by conducting inspections of base engines |
Range of variables
- components (base engine) include: valves, pistons, blocks, liners, cylinder heads, cam shafts, valve trains, crank shafts, connecting rods, timing gears, bearings, seals, sealants, gaskets
- tools and equipment include: temperature measuring devices, compression testers, measuring instruments, pressure measuring devices, dynamometer, fluid analysis sampling devices
- faults include: intake, exhaust and fluid leaks, abnormal noises
B-6.02 Diagnoses lubrication systems
B-6.02 Diagnoses lubrication systems
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-6.02.01P |
identify symptoms of problem |
symptoms of problem are identified by consulting with customer or operator |
| B-6.02.02P |
perform sensory inspections of engine oil to identify factors |
sensory inspections of engine oil are performed to identify factors |
| B-6.02.03P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-6.02.04P |
locate source of contamination |
source of contamination is located |
| B-6.02.05P |
test oil pressure and interpret results |
oil pressure is tested and results are interpreted according to manufacturers’ specifications |
| B-6.02.06P |
check for failed, worn, damaged and faulty components |
failed, worn, damaged and faulty components are identified |
| B-6.02.07P |
interpret engine oil test results |
engine oil test results are interpreted to determine engine wear and fluid contamination |
| B-6.02.08P |
determine required actions |
required actions are determined |
Range of variables
- symptoms of problem include: low or high fluid level, low or high oil pressure, external oil leaks, oil dilution, cross-contaminated oil
- factors include: colour, level, viscosity, odour
- tools and equipment include: pressure gauges, dyes, fluid analysis sampling devices, temperature measuring devices
- source of contamination includes: coolant, fuel, water
- components include: oil pump, oil cooler, pressure regulator valves, bypass valves, inlet strainers, oil filters
- required actions include: repairs, component replacement, further diagnosis
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-6.02.01L |
demonstrate knowledge of lubrication systems, their components, characteristics, applications and operation |
identify types of lubrication systems and their components, and describe their characteristics, applications and operation |
| describe functions and characteristics of engine oil |
| identify fluid classifications |
| B-6.02.02L |
demonstrate knowledge of diagnosing lubrication systems |
identify tools and equipment used to diagnose lubrication systems, and describe their applications and procedures for use |
| describe procedures to diagnose lubrication systems |
| identify hazards and describe safe work practices while diagnosing lubrication systems |
| identify inspections and tests conducted to diagnose lubrication systems |
| describe factors identified by conducting inspection and test of oil |
| B-6.02.03L |
demonstrate knowledge of regulatory requirements pertaining to lubrication systems |
identify and interpret regulations pertaining to lubrication systems |
Range of variables
- components include: oil pump, oil cooler, pressure regulator valves, bypass valves, inlet strainers, oil filters
- fluid classifications include: viscosity, American Petroleum Institute (API), Society of Automotive Engineers (SAE)
- tools and equipment include: pressure gauges, dyes, fluid analysis sampling devices, temperature measuring devices
- factors include: colour, level, viscosity, odour
B-6.03 Diagnoses cooling systems
B-6.03 Diagnoses cooling systems
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-6.03.01P |
identify symptoms of problem |
symptoms of problem are identified by consulting with customer or operator |
| B-6.03.02P |
perform sensory inspections of coolant to identify contamination |
sensory inspections of coolant are performed to identify contamination by checking colour, level and odour |
| B-6.03.03P |
locate source of contamination |
source of contamination is located |
| B-6.03.04P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-6.03.05P |
use test strips to determine coolant condition |
test strips are used to determine coolant condition |
| B-6.03.06P |
check components to identify faults |
components are checked to identify faults |
| B-6.03.07P |
determine required actions |
required actions are determined |
Range of variables
- symptoms of problem include: coolant leaks, low or high operating temperatures, excessive system pressure, contamination
- source of contamination include: oil, fuel, diesel exhaust fluid
- tools and equipment include: leak testing equipment, pressure measuring devices, refractometers, temperature measuring devices, coolant test strips, fluid analysis sampling devices, coolant hydrometers
- coolant condition includes: pH level, freeze point, diesel coolant additive (DCA) levels, supplemental coolant additives (SCA) levels
- components include: oil cooler, thermostats, cooling fan, radiator, hoses, coolant, clamps, seals, sealants, gaskets, fans, fan drives, radiator shrouds, belts, radiator caps, recovery tanks, coolant heaters, sensors, mechanical and electric water pumps, controllers
- faults include: leakage, blockages, erosion, corrosion, wear, oxidization, cavitation
- required actions include: repairs, component replacement, cooling system flush, further diagnosis
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-6.03.01L |
demonstrate knowledge of cooling systems, their components, characteristics, applications and operation |
identify types of cooling systems and their components, and describe their characteristics, applications and operation |
| describe coolant classifications and additives |
| describe hazards of pressurized cooling systems |
| B-6.03.02L |
demonstrate knowledge of diagnosing cooling systems |
identify identify tools and equipment used to diagnose cooling systems, and describe their applications and procedures for use used to diagnose cooling systems, and describe their applications and procedures for use |
| describe procedures to diagnose cooling systems |
| identify hazards and describe safe work practices while diagnosing cooling systems |
| identify inspections and tests conducted to diagnose cooling systems |
| identify potential faults in cooling system components |
| B-6.03.03L |
demonstrate knowledge of regulatory requirements pertaining to cooling systems |
identify and interpret regulations pertaining to cooling systems |
Range of variables
- cooling systems include: electronically-controlled, mechanically-controlled, liquid and air cooled
- components include: oil cooler, thermostats, cooling fan, radiator, hoses, coolant, clamps, seals, sealants, gaskets, fans, fan drives, radiator shrouds, belts, radiator caps, recovery tanks, coolant heaters, sensors, mechanical and electric water pumps, controllers
- tools and equipment include: leak testing equipment, pressure measuring devices, refractometers, temperature measuring devices, coolant test strips, fluid analysis sampling devices, coolant hydrometers
- faults include: leakage, blockages, erosion, corrosion, wear, oxidization, cavitation
B-6.04 Diagnoses intake and exhaust systems
B-6.04 Diagnoses intake and exhaust systems
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-6.04.01P |
identify symptoms of problem |
symptoms of problem are identified by consulting with customer or operator |
| B-6.04.02P |
perform sensory inspections of components to identify faults |
sensory inspections of components are performed to identify faults |
| B-6.04.03P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-6.04.04P |
perform specialized testing procedures |
specialized testing procedures are performed according to OEM procedures |
| B-6.04.05P |
test components to identify faults |
components are tested to identify faults according to OEM procedures |
| B-6.04.06P |
determine required actions |
required actions are determined |
Range of variables
- symptoms of problem include: leakage, restrictions, noise
- components include: manifolds, mufflers, catalysts, after-treatment systems, air filters, charge air coolers, turbochargers, piping, hoses, clamps, gaskets, seals, heat shields, sensors, exhaust gas recirculation (EGR) coolers, exhaust brakes, cold weather starting aids, grid heaters, pre-cleaners
- faults include: contamination, leakage, wear, noises, odours
- tools and equipment include: pressure measuring devices, temperature measuring devices, leak testing equipment, dynamometer
- specialized testing procedures include: boost pressures, intake air temperatures, exhaust temperatures, intake and exhaust restrictions, sensor testing
- required actions include: repairs, component replacement and adjustments, further diagnosis
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-6.04.01L |
demonstrate knowledge of intake and exhaust systems, their components, characteristics, applications and operation |
identify types of intake and exhaust systems and their components, and describe their characteristics, applications and operation |
| B-6.04.02L |
demonstrate knowledge of diagnosing intake and exhaust systems |
identify tools and equipment used to diagnose intake and exhaust systems, and describe their applications and procedures for use |
| describe procedures to diagnose intake and exhaust systems |
| identify hazards and describe safe work practices while diagnosing intake and exhaust systems |
| identify inspections and tests conducted to diagnose intake and exhaust systems |
| B-6.04.03L |
demonstrate knowledge of regulatory requirements pertaining to intake and exhaust systems |
identify and interpret regulations pertaining to intake and exhaust systems |
Range of variables
- components include: manifolds, mufflers, catalysts, after-treatment systems, air filters, charge air coolers, turbochargers, piping, hoses, clamps, gaskets, seals, heat shields, sensors, exhaust gas recirculation (EGR) coolers, exhaust brakes, cold weather starting aids, grid heaters, pre-cleaners
- tools and equipment include: pressure measuring devices, temperature measuring devices, leak testing equipment, dynamometer
B-6.05 Diagnoses fuel delivery systems
B-6.05 Diagnoses fuel delivery systems
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-6.05.01P |
identify symptoms of problem |
symptoms of problem are identified by consulting with customer or operator |
| B-6.05.02P |
perform sensory inspections of components to identify factors |
sensory inspections of components are performed to identify factors |
| B-6.05.03P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-6.05.04P |
interpret fuel system flow schematics |
fuel system flow schematics are interpreted to determine system function and component location |
| B-6.05.05P |
perform operational tests |
operational tests are performed using OEM specialty tools and procedures to identify faulty components |
| B-6.05.06P |
check components to identify faults |
components are checked to identify faults |
| B-6.05.07P |
determine required actions |
required actions are determined |
Range of variables
- symptoms of problem include: hard or no starting, poor engine performance, leakage
- components include: injection pumps, lines and injectors, filters, transfer pumps, filter heads, fuel piping, high-pressure common rail, sensors, fuel tanks, fuel coolers, check valves
- factors include: leaks, air ingress, water deposits, contamination, noises (combustion detonation, misfiring)
- tools and equipment include: pressure gauges, vacuum gauges, flow meters, dynamometers, electronic service tools, injector testers
- operational tests include: injector cut-out, injector operation, injection pump timing, transfer pump pressure, filter restriction
- faults include: wear, damage, leakage, contamination
- required actions include: repairs, component replacement, static injection pump timing adjustment, further diagnosis
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-6.05.01L |
demonstrate knowledge of fuel delivery systems, their components, characteristics, applications and operation |
identify types of fuel delivery systems and their components, and describe their characteristics, applications and operation |
| identify types of fuels and describe their characteristics and applications |
| identify types of fuel additives and describe their characteristics and applications |
| B-6.05.02L |
demonstrate knowledge of diagnosing fuel delivery systems |
identify tools and equipment used to diagnose fuel delivery systems, and describe their applications and procedures for use |
| describe procedures to diagnose fuel delivery systems |
| identify hazards and describe safe work practices while diagnosing fuel delivery systems |
| identify operational tests conducted to diagnose fuel delivery systems |
| B-6.05.03L |
demonstrate knowledge of regulatory requirements pertaining to fuel delivery systems |
identify and interpret regulations pertaining to fuel delivery systems |
Range of variables
- fuel delivery systems include: mechanically-controlled, electronically-controlled, electronically-controlled-mechanically-delivered, hydraulically-actuated
- components include: injection pumps, lines and injectors, filters, transfer pumps, filter heads, fuel piping, high-pressure common rail, sensors, fuel tanks, fuel coolers, check valves
- types of fuels include: diesel (winter, summer), biofuel, gasoline, propane, natural gas
- tools and equipment include: pressure gauges, vacuum gauges, flow meters, dynamometers, electronic service tools, injector testers
- hazards include: extreme high pressure, burns, flammable and explosive materials, high-pressure fluid injection, environmental
- operational tests include: injector cut-out, injector operation, injection pump timing, transfer pump pressure, filter restriction
B-6.06 Diagnoses engine management systems
B-6.06 Diagnoses engine management systems
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-6.06.01P |
identify symptoms of problem |
symptoms of problem are identified by consulting with customer or operator |
| B-6.06.02P |
perform sensory inspections of components to identify faults |
sensory inspections of components are performed to identify faults |
| B-6.06.03P |
select and use electronic diagnostic tools and equipment |
electronic diagnostic tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-6.06.04P |
monitor system operation and interpret results to determine faulty components |
system operation is monitored and results are interpreted to determine faulty components according to OEM diagnostic procedures |
| B-6.06.05P |
determine required repair |
required repair is determined |
Range of variables
- symptoms of problem include: engine performance issues, error codes, de-rate situations, hard or no starting, low or high engine temperature operation, poor connections, high resistance
- components include: controllers, sensors, solenoids, harnesses, actuators, valves, connectors, switches
- faults include: corrosion, moisture, heat damage, shorted wires, open circuits, high resistance, pinched or frayed wires, damaged connectors
- electronic diagnostic tools and equipment include: laptops, smart phones, tablets, onboard diagnostics, breakout harnesses, multimeters
- results include: abnormal temperature, pressure, speed readings
- required repair includes: sensor, actuator and controller replacement or adjustment; software installation and updating; further diagnosis
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-6.06.01L |
demonstrate knowledge of engine management systems, their components, characteristics, applications and operation |
identify types of engine management systems and their components, and describe their characteristics, applications and operation |
| B-6.06.02L |
demonstrate knowledge of diagnosing engine management systems |
identify electronic diagnostic tools and equipment used to diagnose engine management systems, and describe their applications and procedures for use |
| describe procedures to diagnose engine management systems |
| identify hazards and describe safe work practices while diagnosing engine management systems |
| B-6.06.03L |
demonstrate knowledge of regulatory requirements pertaining to engine management systems |
identify and interpret regulations pertaining to engine management systems |
Range of variables
- components include: controllers, sensors, solenoids, harnesses, actuators, valves, connectors, switches
- electronic diagnostic tools and equipment include: laptops, smart phones, tablets, onboard diagnostics, breakout harnesses, multimeters
B-6.07 Diagnoses emissions control systems
B-6.07 Diagnoses emissions control systems
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-6.07.01P |
identify symptoms of problem |
symptoms of problem are identified by consulting with customer or operator |
| B-6.07.02P |
select and use electronic diagnostic tools and equipment |
electronic diagnostic tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-6.07.03P |
perform visual inspection of diesel exhaust fluid (DEF) delivery and storage components |
visual inspection of DEF delivery and storage components is performed to identify leaks, quality and contamination |
| B-6.07.04P |
perform visual inspection of EGR system, diesel particulate filter (DPF), diesel oxidation catalyst (DOC) and selective catalytic reduction (SCR) |
visual inspection of EGR system, DPF, DOC and SCR is performed to identify physical damage |
| B-6.07.05P |
interpret diagnostic tests to identify improperly operating components |
diagnostic tests are interpreted to identify improperly operating components |
| B-6.07.06P |
determine required repair |
required repair is determined |
Range of variables
- symptoms of problem include: engine performance issues, error codes, de-rate situations, low or high engine temperature operation
- electronic diagnostic tools and equipment include: laptops, breakout harnesses, onboard diagnostics, temperature measuring devices, multimeters
- components include: DPF, DOC, SCR, DEF injection nozzle, dosing module, DEF heaters, sensors, filters, pumps, tanks, hoses, pipes, lines, DEF controller
- required repair includes: sensor, actuator and controller replacement; emission control system regeneration; software installation and updates; further diagnosis
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-6.07.01L |
demonstrate knowledge of emissions control systems, their components, characteristics, applications and operation |
identify emissions control systems and their components, and describe their characteristics, applications and operation |
| describe EGR system theory |
| describe system theory of DOC, DPF, DEF and SCR |
| B-6.07.02L |
demonstrate knowledge of diagnosing emissions control systems |
identify electronic diagnostic tools and equipment used to diagnose emissions control systems, and describe their applications and procedures for use |
| describe procedures to diagnose emissions control systems |
| identify hazards and describe safe work practices while diagnosing emissions control systems |
| identify inspections and tests conducted to diagnose emissions control systems |
| B-6.07.03L |
demonstrate knowledge of regulatory requirements pertaining to emissions control systems |
identify and interpret regulations pertaining to emissions control systems |
Range of variables
- components include: DPF, DOC, SCR, DEF injection nozzle, dosing module, DEF heaters, sensors, filters, pumps, tanks, hoses, pipes, lines, DEF controller
- electronic diagnostic tools and equipment include: laptops, breakout harnesses, onboard diagnostics, temperature measuring devices, multimeters
- hazards include: high temperatures, carbon monoxide
Task B-7 Repairs engines and engine support systems
Task descriptor
The effective repair of engines and engine support systems is critical to engine performance, reliability and emission compliance. The engine is the vital part of the machine, as it is the power source for all operations. Agricultural equipment technicians must possess a thorough understanding of these systems.
B-7.01 Repairs base engines
B-7.01 Repairs base engines
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-7.01.01P |
prepare equipment for engine removal and reinstallation |
equipment is prepared for engine removal and reinstallation by performing functions |
| B-7.01.02P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-7.01.03P |
remove components for access |
components are removed for access |
| B-7.01.04P |
flush base engine and clean components |
base engine is flushed and its components are cleaned |
| B-7.01.05P |
remove, disassemble and inspect components |
components are removed, disassembled and inspected to determine if they should be replaced, or reconditioned and reused according to manufacturers’ specifications and procedures |
| B-7.01.06P |
adjust components for factors |
components are adjusted for factors according to manufacturers’ specifications and procedures |
| B-7.01.07P |
rebuild engine by replacing components to repair conditions |
engine is rebuilt by replacing components to repair conditions to meet manufacturers’ specifications |
| B-7.01.08P |
perform break-in procedure |
break-in procedure is performed according to manufacturers’ specifications and procedures to increase engine life and reliability |
| B-7.01.09P |
reinstall components removed for access |
components removed for access are reinstalled |
Range of variables
- functions include: disconnecting electrical connections, draining fluids, evacuating heating, ventilation and air conditioning (HVAC) system
- tools and equipment include: torque wrenches, dial indicators, measuring instruments, lifting devices, safety stands, torque-to-yield gauge, feeler gauges, dynamometers, electronic service tools
- components (removed for access) include: hoods, panels, loader frames, loader, cooling package
- components (base engine) include: valves, pistons, blocks, liners, cylinder heads, cam shafts, valve trains, crank shafts, connecting rods, timing gears, bearings, seals, sealants, gaskets
- components (to be adjusted) include: valves, liners, timing gears
- factors include: valve clearance, suitable liner protrusion, gear backlash
- conditions include: leaks, wear, physical damage, cavitation (pitting)
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-7.01.01L |
demonstrate knowledge of base engines, their components, characteristics, applications and operation |
identify types of base engines and their components, and describe their characteristics and applications |
| describe theory of engine operation |
| B-7.01.02L |
demonstrate knowledge of repairing base engines |
identify tools and equipment used to repair base engines, and describe their applications and procedures for use |
| describe procedures to repair base engines and their components |
| describe break-in procedures |
| identify hazards and safe work practices while performing repairs |
Range of variables
- components (base engine) include: valves, pistons, blocks, liners, cylinder heads, cam shafts, valve trains, crank shafts, connecting rods, timing gears, bearings, seals, sealants, gaskets
- tools and equipment include: torque wrenches, dial indicators, measuring instruments, lifting devices, safety stands, torque-to-yield gauge, feeler gauges, dynamometers, electronic service tools
B-7.02 Repairs lubrication systems
B-7.02 Repairs lubrication systems
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-7.02.01P |
remove components for access |
components are removed for access |
| B-7.02.02P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-7.02.03P |
flush lubrication system and clean components |
lubrication system is flushed and components are cleaned |
| B-7.02.04P |
remove, disassemble and inspect components |
components are removed, disassembled and inspected to determine if they should be replaced according to manufacturers’ specifications and procedures |
| B-7.02.05P |
replace worn and damaged components |
worn and damaged components are replaced according to manufacturers’ specifications and procedures |
| B-7.02.06P |
reassemble unit after repair |
unit is reassembled after repair according to manufacturers’ specifications and procedures |
| B-7.02.07P |
reinstall components removed for access |
components removed for access are reinstalled |
Range of variables
- components (removed for access) include: panel, shields, hoods, oil pans, timing cover, gear train
- tools and equipment include: torque wrenches, OEM specialty tools, pressure measuring devices
- components include: oil pump, oil cooler, pressure regulator valves, bypass valves, inlet strainers, oil filters
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-7.02.01L |
demonstrate knowledge of lubrication systems, their components, characteristics, applications and operation |
identify types of lubrication systems and their components, and describe their characteristics, applications and operation |
| describe functions and characteristics of engine oil |
| identify types of fluid classifications |
| B-7.02.02L |
demonstrate knowledge of repairing lubrication systems |
identify tools and equipment used to repair lubrication systems, and describe their applications and procedures for use |
| describe procedures to repair lubrication systems and their components |
| identify hazards and safe work practices while performing repairs |
| B-7.02.03L |
demonstrate knowledge of regulatory requirements pertaining to lubrication systems |
identify and interpret regulations pertaining to lubrication systems |
Range of variables
- components include: oil pump, oil cooler, pressure regulator valves, bypass valves, inlet strainers, oil filters
- fluid classifications include: viscosity, API, SAE
- tools and equipment include: torque wrenches, OEM specialty tools, pressure measuring devices
B-7.03 Repairs cooling systems
B-7.03 Repairs cooling systems
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-7.03.01P |
remove components for access |
components are removed for access |
| B-7.03.02P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-7.03.03P |
remove, disassemble and inspect components |
components are removed, disassembled and inspected to determine if they should be replaced, or reconditioned and reused according to manufacturers’ specifications and procedures |
| B-7.03.04P |
replace worn and damaged components |
worn and damaged components are replaced according to manufacturers’ specifications and procedures |
| B-7.03.05P |
flush or replace blocked radiator |
blocked radiator is flushed or replaced |
| B-7.03.06P |
verify thermostat operation before installation |
thermostat operation is verified before installation |
| B-7.03.07P |
clean and blow out blockages in air-cooled systems |
blockages in air-cooled systems are cleaned and blown out to ensure adequate airflow |
| B-7.03.08P |
blow out external radiator blockages |
external radiator blockages are blown out |
| B-7.03.09P |
reassemble unit after repair |
unit is reassembled after repair according to manufacturers’ specifications and procedures |
| B-7.03.10P |
purge air from liquid-cooled system after repair |
air is purged from liquid-cooled system after repair |
| B-7.03.11P |
reinstall components removed for access |
components removed for access are reinstalled |
Range of variables
- components (removed for access) include: panel, shields, hoods, HVAC components
- tools and equipment include: torque wrenches, OEM specialty tools, lifting devices, flushing equipment, coolant handling equipment, temperature measuring devices, thermostat testing equipment
- components include: oil cooler, thermostats, cooling fan, radiator, hoses, coolant, clamps, seals, sealants, gaskets, fans, fan drives, radiator shrouds, belts, radiator caps, recovery tanks, coolant heaters, sensors, mechanical and electric water pumps, controllers
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-7.03.01L |
demonstrate knowledge of cooling systems, their components, characteristics, applications and operation |
identify types of cooling systems and their components, and describe their characteristics, applications and operation |
| describe coolant classifications and additives |
| describe hazards of pressurized cooling systems |
| B-7.03.02L |
demonstrate knowledge of repairing cooling systems |
identify tools and equipment used to repair cooling systems, and describe their applications and procedures for use |
| describe procedures to repair cooling systems and their components |
| identify hazards and safe work practices while performing repairs |
| B-7.03.03L |
demonstrate knowledge of regulatory requirements pertaining to cooling systems |
identify and interpret regulations pertaining to cooling systems |
Range of variables
- cooling systems include: electronically-controlled, mechanically-controlled, liquid and air cooled
- components include: oil cooler, thermostats, cooling fan, radiator, hoses, coolant, clamps, seals, sealants, gaskets, fans, fan drives, radiator shrouds, belts, radiator caps, recovery tanks, coolant heaters, sensors, mechanical and electric water pumps, controllers
- tools and equipment include: torque wrenches, OEM specialty tools, lifting devices, flushing equipment, coolant handling equipment, temperature measuring devices, thermostat testing equipment
B-7.04 Repairs intake and exhaust systems
B-7.04 Repairs intake and exhaust systems
| NL |
NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
YT |
NU |
| NV |
yes |
NV |
NV |
NV |
yes |
yes |
yes |
yes |
ND |
NV |
NV |
ND |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-7.04.01P |
remove components for access |
components are removed for access |
| B-7.04.02P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-7.04.03P |
remove, disassemble and inspect components |
components are removed, disassembled and inspected to determine if they should be replaced, or reconditioned and reused according to manufacturers’ specifications and procedures |
| B-7.04.04P |
replace worn and damaged components |
worn and damaged components are replaced according to manufacturers’ specifications and procedures |
| B-7.04.05P |
adjust components for factors |
components are adjusted for factors |
| B-7.04.06P |
identify components for reconditioning |
components for reconditioning are identified |
| B-7.04.07P |
clean and flush components |
components are cleaned and flushed |
| B-7.04.08P |
reassemble unit after repair |
unit is reassembled after repair |
| B-7.04.09P |
reinstall components removed for access |
components removed for access are reinstalled |
Range of variables
- components (removed for access) include: panels, shields, hoods, valve covers
- tools and equipment include: torque wrenches, OEM specialty tools, lifting devices, feeler gauges, temperature measuring devices, stethoscope
- components include: manifolds, mufflers, catalysts, after-treatment systems, air filters, charge air coolers, turbochargers, piping, hoses, clamps, gaskets, seals, heat shields, sensors, EGR coolers, exhaust brakes, cold weather starting aids, grid heaters, pre-cleaners
- components (to be adjusted) include: waste gate, intake and exhaust valve
- factors include: travel, clearances
- components for reconditioning include: turbochargers, cylinder heads, DPF
- components (cleaning and flushing) include: manifolds, charge air coolers, piping, hoses, cylinder heads, air filters, after-treatment systems
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-7.04.01L |
demonstrate knowledge of intake and exhaust systems, their components, characteristics, applications and operation |
identify types of intake and exhaust systems and their components, and describe their characteristics, applications and operation |
| B-7.04.02L |
demonstrate knowledge of repairing intake and exhaust systems |
identify tools and equipment used to repair intake and exhaust systems, and describe their applications and procedures for use |
| describe procedures to repair intake and exhaust systems |
| identify types of starting aids and describe their characteristics, applications and procedures for use |
| identify hazards and safe work practices while performing repairs |
| B-7.04.03L |
demonstrate knowledge of regulatory requirements pertaining to intake and exhaust systems |
identify and interpret regulations pertaining to intake and exhaust systems |
Range of variables
- components include: manifolds, mufflers, catalysts, after-treatment systems, air filters, charge air coolers, turbochargers, piping, hoses, clamps, gaskets, seals, heat shields, sensors, EGR coolers, exhaust brakes, cold weather starting aids, grid heaters, pre-cleaners
- tools and equipment include: torque wrenches, OEM specialty tools, lifting devices, feeler gauges, temperature measuring devices, stethoscope
- types of starting aids include: preheaters, starting fluid, glow plugs
- hazards include: carbon monoxide, burns
B-7.05 Repairs fuel delivery systems
B-7.05 Repairs fuel delivery systems
| NL |
NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
YT |
NU |
| NV |
yes |
NV |
NV |
NV |
yes |
yes |
yes |
yes |
ND |
NV |
NV |
ND |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-7.05.01P |
remove components for access |
components are removed for access |
| B-7.05.02P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-7.05.03P |
remove, disassemble and inspect components |
components are removed, disassembled and inspected to determine if they should be replaced, or reconditioned and reused according to manufacturers’ specifications and procedures |
| B-7.05.04P |
replace worn and damaged components |
worn and damaged components are replaced according to manufacturers’ specifications and procedures |
| B-7.05.05P |
adjust injectors and injection pump for static timing |
injectors and injection pump are adjusted for static timing according to manufacturers’ specifications and procedures |
| B-7.05.06P |
identify components for reconditioning |
components for reconditioning are identified |
| B-7.05.07P |
adjust components |
components are adjusted according to manufacturers’ specifications and procedures |
| B-7.05.08P |
reassemble unit after repair |
unit is reassembled after repair |
| B-7.05.09P |
bleed fuel delivery system for operation |
fuel delivery system is bled for operation |
| B-7.05.10P |
reinstall components removed for access |
components removed for access are reinstalled |
Range of variables
- components (removed for access) include: air ducting, valve covers, surge tank, exhaust manifold, panels, shields, hoods
- tools and equipment include: torque wrenches, OEM specialty tools, pullers, dial indicators, electronic service tools
- components include: injection pumps, lines and injectors, filters, transfer pumps, filter heads, fuel piping, high-pressure common rail, sensors, fuel tanks, fuel coolers, check valves
- components for reconditioning include: injection pump, injectors, fuel pumps, fuel coolers, fuel tanks
- adjustments include: shimming mechanical injectors, entering calibration values for electronic injectors, setting injector pre load, confirming high and low throttle (mechanical injection systems), adjusting throttle linkages, performing governor and injector rack control adjustment
- fuel delivery systems include: mechanically-controlled, electronically-controlled, electronically-controlled-mechanically-delivered, hydraulically-actuated
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-7.05.01L |
demonstrate knowledge of fuel delivery systems, their components, characteristics, applications and operation |
identify types of fuel delivery systems and their components, and describe their characteristics, applications and operation |
| identify types of fuels and describe their characteristics and applications |
| identify types of fuel additives and describe their characteristics and applications |
| B-7.05.02L |
demonstrate knowledge of repairing fuel delivery systems |
identify tools and equipment used to repair fuel delivery systems, and describe their applications and procedures for use |
| describe procedures to repair fuel delivery systems |
| identify hazards and safe work practices while performing repairs |
| B-7.05.03L |
demonstrate knowledge of regulatory requirements pertaining to fuel delivery systems |
identify and interpret regulations pertaining to fuel delivery systems |
Range of variables
- fuel delivery systems include: mechanically-controlled, electronically-controlled, electronically-controlled-mechanically-delivered, hydraulically-actuated
- components include: injection pumps, lines and injectors, filters, transfer pumps, filter heads, fuel piping, high-pressure common rail, sensors, fuel tanks, fuel coolers, check valves
- types of fuels include: diesel (winter, summer), biofuel, gasoline, propane, natural gas
- tools and equipment include: torque wrenches, OEM specialty tools, pullers, dial indicators, electronic service tools
- hazards include: extreme high pressure, burns, flammable and explosive materials, high-pressure fluid injection, environmental
B-7.06 Repairs engine management systems
B-7.06 Repairs engine management systems
| NL |
NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
YT |
NU |
| NV |
yes |
NV |
NV |
NV |
yes |
yes |
yes |
yes |
ND |
NV |
NV |
ND |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-7.06.01P |
remove components for access |
components are removed for access |
| B-7.06.02P |
select and use tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-7.06.03P |
remove, disassemble and inspect components |
components are removed, disassembled and inspected to determine if they should be replaced, or reconditioned and reused according to manufacturers’ specifications and procedures |
| B-7.06.04P |
replace worn and damaged components |
worn and damaged components are replaced according to procedures and manufacturers’ specifications |
| B-7.06.05P |
repair components |
components are repaired according to manufacturers’ specifications and procedures |
| B-7.06.06P |
recalibrate components |
components are recalibrated according to manufacturers’ specifications and procedures |
| B-7.06.07P |
reassemble unit after repair |
unit is reassembled after repair |
| B-7.06.08P |
reinstall components removed for access |
components removed for access are reinstalled |
Range of variables
- components (removed for access) include: panels, shields, hoods
- tools and equipment include: electronic service tools, multimeters, terminal release tools, temperature measuring devices, pressure measuring devices
- components include: controllers, sensors, solenoids, harnesses, actuators, valves, connectors, switches
- components (to be repaired) include: connector pins and wires, controllers
- components (to be recalibrated) include: sensors, switches, controllers, actuators
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-7.06.01L |
demonstrate knowledge of engine management systems, their components, characteristics, applications and operation |
identify types of engine management systems and their components, and describe their characteristics, applications and operation |
| B-7.06.02L |
demonstrate knowledge of repairing engine management systems |
identify tools and equipment used to repair engine management systems, and describe their applications and procedures for use |
| describe procedures to repair engine management systems and their components |
| describe procedures to recalibrate engine management systems and their components |
| identify hazards and safe work practices while performing repairs |
| B-7.06.03L |
demonstrate knowledge of regulatory requirements pertaining to engine management systems |
identify and interpret regulations pertaining to engine management systems |
Range of variables
- components include: controllers, sensors, solenoids, harnesses, actuators, valves, connectors, switches
- tools and equipment include: electronic service tools, multimeters, terminal release tools, temperature measuring devices, pressure measuring devices
- components (to be repaired) include: connector pins and wires, controllers
- components (to be recalibrated) include: sensors, switches, controllers, actuators
B-7.07 Repairs emissions control systems
B-7.07 Repairs emissions control systems
| NL |
NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
YT |
NU |
| NV |
yes |
NV |
NV |
NV |
yes |
yes |
yes |
yes |
ND |
NV |
NV |
ND |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| B-7.07.01P |
remove components for access |
components are removed for access |
| B-7.07.02P |
select and uses tools and equipment |
tools and equipment are selected and used according to application and manufacturers’ procedures |
| B-7.07.03P |
remove, disassemble and inspect components |
components are removed, disassembled and inspected to determine if they should be replaced, or reconditioned and reused according to manufacturers’ specifications and procedures |
| B-7.07.04P |
replace worn and damaged components |
worn and damaged components are replaced according to manufacturers’ specifications and procedures |
| B-7.07.05P |
identify components for reconditioning |
components for reconditioning are identified |
| B-7.07.06P |
perform parked regenerative cycle for DPF and DOC |
parked regenerative cycle for DPF and DOC is performed according to manufacturers’ specifications and procedures |
| B-7.07.07P |
reassemble unit after repair |
unit is reassembled after repair |
| B-7.07.08P |
verify new DPF and DOC has appropriate controller software |
new DPF and DOC has appropriate controller software |
| B-7.07.09P |
flush and clean emission system components |
emission system components are flushed and cleaned |
| B-7.07.10P |
reinstall components removed for access |
components removed for access are reinstalled |
Range of variables
- components (removed for access) include: panels, heat shields, covers, hoods
- tools and equipment include: OEM specialty tools, lifting devices, electronic service tools, temperature sensing devices, refractometer
- components include: DPF, DOC, SCR, DEF injection nozzle, dosing module, DEF heaters, sensors, filters, pumps, tanks, hoses, pipes, lines, DEF controller
- components (for reconditioning) include: DPF, DEF controller, DEF injection nozzle, pumps
- components (for flushing) include: hoses, pipes, lines, tanks, injectors, pumps
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| B-7.07.01L |
demonstrate knowledge of emissions control systems, their components, characteristics, applications and operation |
identify emissions control systems and their components, and describe their characteristics, applications and operation |
| B-7.07.02L |
demonstrate knowledge of repairing emissions control systems |
identify tools and equipment used to repair emissions control systems, and describe their applications and procedures for use |
| describe procedures to repair emissions control systems |
| describe procedures to flush and clean components |
| identify hazards and safe work practices while performing repairs |
| B-7.07.03L |
demonstrate knowledge of regulatory requirements pertaining to emissions control systems |
identify and interpret regulations pertaining to emissions control systems |
Range of variables
- components include: DPF, DOC, SCR, DEF injection nozzle, dosing module, DEF heaters, sensors, filters, pumps, tanks, hoses, pipes, lines, DEF controller
- tools and equipment include: OEM specialty tools, lifting devices, electronic service tools, temperature sensing devices, refractometer
- components (for flushing) include: hoses, pipes, lines, tanks, injectors, pumps
- hazards include: high temperatures, carbon monoxide