Table of Contents
Task G-34 Services, diagnoses and repairs hydraulic systems
Task Descriptor
Hydraulic systems pump confined fluid to transfer energy smoothly from one component to another. Advantages of using hydraulics include non-compressible smooth and quiet operation, and variable speed and force, which allows for a versatile and adaptable system.
Heavy duty equipment technicians must service, diagnose and repair hydraulic systems to ensure proper function and reduce down time.
G-34.01 - Services hydraulic systems
G-34.01 - Services hydraulic systems
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| G-34.01.01P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information |
| G-34.01.02P |
release and isolate stored energy in components |
stored energy is released and isolated in components according to manufacturers’ service information |
| G-34.01.03P |
clean components |
components are cleaned according to manufacturers’ service information |
| G-34.01.04P |
perform sensory inspections |
sensory inspections are performed to identify worn, damaged and defective components |
| G-34.01.05P |
perform measurements |
measurements are performed and compared with manufacturers’ service information |
| G-34.01.06P |
check fluid levels |
fluid levels are checked to determine if they meet manufacturers’ service information |
| G-34.01.07P |
collect oil samples for analysis |
oil samples are collected for analysis according to manufacturers’ service information |
| G-34.01.08P |
remove and replace consumables |
consumables are removed and replaced according to manufacturers’ service information |
| G-34.01.09P |
recycle and dispose of consumables |
consumables are recycled and disposed of according to jurisdictional regulations |
| G-34.01.10P |
lubricate components |
components are lubricated according to manufacturers’ service information |
| G-34.01.11P |
adjust and calibrate components |
components are adjusted and calibrated according to manufacturers’ service information |
| G-34.01.12P |
perform software updates |
software updates are performed according to manufacturers’ service information |
| G-34.01.13P |
document service information and inspection findings |
service information and inspection findings are documented according to manufacturers’ requirements for warranty, and for future reference and tracking |
Range of Variables
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer, laptop, multimeters
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- components include: gaskets, seals, hoses, fittings, pumps, cylinders, hydraulic motor, actuators, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens
- sensory inspections include: noise, leaks, hot spots, burnt oil, smells
- measurements include:cycle times, pressure test, drift test, operational test
- consumables include: filters, oil, hoses, fittings, gaskets, seals
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| G-34.01.01L |
demonstrate knowledge of hydraulic systems, their components, consumables, characteristics, applications and operation |
identify types of hydraulic systems, components and consumables, and describe their characteristics and applications |
| describe operating principles of hydraulic systems |
| interpret information pertaining to hydraulic systems found in manufacturers’ service information |
| identify pressure limits of hoses, tubing and fittings |
| identify fluids and fluid conditioning systems, and describe their characteristics and applications |
| G-34.01.02L |
demonstrate knowledge of procedures to service hydraulic systems and components |
identify tools and equipment used to service hydraulic systems and components, and describe their applications and procedures for use |
| identify hazards and describe safe work practices to service hydraulic systems |
| describe procedures to release and isolate stored energy |
| describe procedures to inspect hydraulic systems and components |
| describe procedures to clean hydraulic systems and components |
| describe procedures to service hydraulic systems and their components |
| describe procedures to remove, replace, recycle and dispose of hydraulic system consumables |
| identify oil sampling procedures |
| identify materials that can be reconditioned, reused or recycled |
| G-34.01.03L |
demonstrate knowledge of emerging technologies pertaining to hydraulic systems |
identify emerging technologies pertaining to hydraulic systems |
| identify technologies that address emissions and pollution, and describe their characteristics and applications |
Range of Variables
- components include: gaskets, seals, hoses, fittings, pumps, cylinders, hydraulic motor, actuators, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens
- consumables include: filters, oil, hoses, fittings, gaskets, seals
- types of hydraulic systems include: open center, closed center, load sensing, pressure compensated, constant horsepower, negative and positive flow control, meter-in, meter-out, multi-pump unloading
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- fluid conditioning systems include: filtration systems, heating and cooling devices
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer, laptop, multimeters
- hazards include: stored high pressure, skin and eye irritation, flammability, high temperatures, fluid injection
G-34.02 - Diagnoses hydraulic systems
G-34.02 - Diagnoses hydraulic systems
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yes |
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yes |
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yes |
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Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| G-34.02.01P |
identify symptoms of problems |
symptoms of problems are identified by consulting with customer or operator |
| G-34.02.02P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information |
| G-34.02.03P |
perform sensory inspections |
sensory inspections are performed to identify conditions |
| G-34.02.04P |
verify complaint and expected performance |
complaint and expected performance is verified by comparing equipment operation to manufacturers’ service information |
| G-34.02.05P |
perform diagnostic procedures and tests |
diagnostic procedures and tests are performed according to manufacturers’ service information |
| G-34.02.06P |
verify diagnosis |
diagnosis is verified by interpreting test results and comparing them to manufacturers’ service information or expected values |
| G-34.02.07P |
clean components |
components are cleaned according to manufacturers’ service information |
| G-34.02.08P |
release and isolate stored energy in components |
stored energy is released and isolated in components according to manufacturers’ service information |
| G-34.02.09P |
remove and disassemble components to identify or confirm problem |
components are removed and disassembled to identify or confirm problem |
| G-34.02.10P |
inspect components for conditions |
components are inspected for conditions according to manufacturers’ service information |
| G-34.02.11P |
perform measurements |
measurements are performed and compared with manufacturers’ service information |
| G-34.02.12P |
obtain oil samples |
oil samples are obtained and results interpreted to identify problems and trends |
| G-34.02.13P |
perform failure analysis |
failure analysis is performed to determine root cause of failure |
| G-34.02.14P |
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 |
| G-34.02.15P |
interpret diagnostic results to determine next steps |
diagnostic results are interpreted to determine next steps |
Range of Variables
- symptoms of problems include:fail to raise or lower, slow operation, intermittent or erratic operation, noisy operation, weak performance, overheating, internal and external leaking
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer, laptop, multimeters, stopwatches
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- sensory inspections include: noise, leaks, hot spots, burnt oil, smells
- conditions include: wear, damage, defects
- tests include: pressure, flow, restriction, cycle time, drift, operational
- components include: gaskets, seals, hoses, fittings, pumps, cylinders, hydraulic motor, actuators, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens
- next steps include: repairs, component replacement or adjustment, further diagnosis
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| G-34.02.01L |
demonstrate knowledge of hydraulic systems, their components, consumables, characteristics, applications and operation |
identify types of hydraulic systems, components and consumables, and describe their characteristics and applications |
| describe operating principles of hydraulic systems |
| interpret information pertaining to hydraulic systems found in manufacturers’ service information |
| identify pressure limits of hoses, tubing and fittings |
| identify fluids and fluid conditioning systems, and describe their characteristics and applications |
| G-34.02.02L |
demonstrate knowledge of procedures to diagnose hydraulic systems and components |
identify tools and equipment used to diagnose hydraulic systems and components, and describe their applications and procedures for use |
| identify hazards and describe safe work practices to diagnose hydraulic systems and components |
| describe common causes and symptoms of problems |
| describe procedures to release and isolate stored energy |
| describe procedures to inspect hydraulic systems and components |
| describe procedures to test hydraulic systems and components |
| describe procedures to diagnose hydraulic systems and components |
| describe oil sampling procedures |
| identify steps for failure analysis |
| identify materials that can be reconditioned, reused or recycled |
| G-34.02.03L |
demonstrate knowledge of emerging technologies pertaining to hydraulic systems |
identify emerging technologies pertaining to hydraulic systems |
| identify technologies that address emissions and pollution, and describe their characteristics and applications |
Range of Variables
- components include: gaskets, seals, hoses, fittings, pumps, cylinders, hydraulic motor, actuators, relief
- valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens
- consumables include: filters, oil, hoses, fittings, gaskets, seals
- types of hydraulic systems include: open center, closed center, load sensing, pressure compensated, constant horsepower, negative and positive flow control, meter-in, meter-out, multi-pump unloading
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- fluid conditioning systems include: filtration systems, heating and cooling devices
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer, laptop, multimeters, stopwatches
- hazards include: stored high pressure, skin and eye irritation, flammability, high temperatures, fluid injection, spills, unexpected movement of equipment
- symptoms of problems include:fail to raise or lower, slow operation, intermittent or erratic operation, noisy operation, weak performance, overheating, internal and external leaking
G-34.03 - Repairs hydraulic systems
G-34.03 - Repairs hydraulic systems
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yes |
yes |
yes |
yes |
yes |
yes |
yes |
NV |
NV |
NV |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| G-34.03.01P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information |
| G-34.03.02P |
release and isolate stored energy in components |
stored energy is released and isolated in components according to manufacturers’ service information |
| G-34.03.03P |
remove, disassemble and inspect components for conditions |
components are removed, disassembled and inspected for conditions according to manufacturers’ service information |
| G-34.03.04P |
flush hydraulic system |
hydraulic system is flushed |
| G-34.03.05P |
select parts and materials |
parts and materials are selected according to repair requirements and manufacturers’ service information |
| G-34.03.06P |
follow repair sequence |
repair sequence is followed according to manufacturers’ service information |
| G-34.03.07P |
assemble and install components |
components are assembled and installed according to manufacturers’ service information |
| G-34.03.08P |
replace components |
components are replaced according to manufacturers’ service information |
| G-34.03.09P |
rebuild components |
components are rebuilt according to manufacturers’ service information |
| G-34.03.10P |
repair components |
components are repaired according to manufacturers’ service information |
| G-34.03.11P |
reassemble components and perform measurements |
components are reassembled and measurements are performed according to manufacturers’ service information |
| G-34.03.12P |
remove and replace consumables |
consumables are removed and replaced according to manufacturers’ service information |
| G-34.03.13P |
recycle and dispose of consumables |
consumables are recycled and disposed of according to jurisdictional regulations |
| G-34.03.14P |
perform pre-lubrication, bleeding and priming procedures |
pre-lubrication, bleeding and priming procedures are performed according to manufacturers’ service information |
| G-34.03.15P |
perform start-up and break-in procedures |
start-up and break-in procedures are performed according to manufacturers’ service information |
| G-34.03.16P |
adjust components and parts |
components and parts are adjusted according to manufacturers’ service information |
| G-34.03.17P |
verify repairs |
repairs are verified according to manufacturers’ service information |
| G-34.03.18P |
document repairs performed |
repairs are documented according to manufacturers’ requirements for warranty, liability, future reference and tracking |
Range of Variables
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer, laptop, multimeters, stopwatches
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- components include: gaskets, seals, hoses, fittings, pumps, cylinders, hydraulic motor, actuators, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens
- conditions include: scoring, wear patterns, heat discolouration, damage, defect, leaks
- consumables include: filters, oil, hoses, fittings, gaskets, seals
- adjust includes: pressure, flow, balancing pump output, calibrating electronic controls
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| G-34.03.01L |
demonstrate knowledge of hydraulic systems, their components, consumables, characteristics, applications and operation |
identify types of hydraulic systems, components and consumables, and describe their characteristics and applications |
| describe operating principles of hydraulic systems |
| interpret information pertaining to hydraulic systems found in manufacturers’ service information |
| identify pressure limits of hoses, tubing and fittings |
| identify fluids and fluid conditioning systems, and describe their characteristics and applications |
| 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 |
| identify and describe hydraulically powered applications |
| G-34.03.02L |
demonstrate knowledge of procedures to repair hydraulic systems and components |
identify tools and equipment used to repair hydraulic systems and components, and describe their applications and procedures for use |
| identify hazards and describe safe work practices to repair hydraulic systems and components |
| describe procedures to release and isolate stored energy |
| describe procedures to remove, disassemble, assemble and inspect components |
| describe procedures to repair, replace or rebuild components |
| describe procedures to adjust components |
| describe procedures to recycle and dispose of components and consumables |
| describe methods to verify repairs |
| identify materials that can be reconditioned, reused or recycled |
| identify practices that reduce material waste |
| G-34.03.03L |
demonstrate knowledge of emerging technologies pertaining to hydraulic systems |
identify emerging technologies pertaining to hydraulic systems |
| identify technologies that address emissions and pollution, and describe their characteristics and applications |
Range of Variables
- components include: gaskets, seals, hoses, fittings, pumps, cylinders, hydraulic motor, actuators, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens
- consumables include: filters, oil, hoses, fittings, gaskets, seals
- types of hydraulic systems include: open center, closed center, load sensing, pressure compensated, constant horsepower, negative and positive flow control, meter-in, meter-out, multi-pump unloading
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- fluid conditioning systems include: filtration systems, heating and cooling devices
- hydraulically powered applications include: dump boxes, compactors, snow removal equipment, aerial lifts, mobile cranes, loaders, dozers, excavators
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer, laptop, multimeters, stopwatches
- hazards include: stored high pressure, skin and eye irritation, flammability, high temperatures, fluid injection, spills, unexpected movement of equipment
- adjust includes: pressure, flow, balancing pump output, calibrating electronic controls
Task G-35 Services, diagnoses and repairs hydrostatic systems
Task Descriptor
Hydrostatic systems are primarily closed loop hydraulic systems, which use fluid under pressure to transmit power to drive components such as wheel or track drives.
Heavy duty equipment technicians must service, diagnose and repair hydrostatic systems to ensure proper function and reduce down time.
G-35.01 - Services hydrostatic systems
G-35.01 - Services hydrostatic systems
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NS |
PE |
NB |
QC |
ON |
MB |
SK |
AB |
BC |
NT |
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NU |
| yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
NV |
NV |
NV |
Skills
| Reference Code |
Performance Criteria |
Evidence of Attainment |
| G-35.01.01P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information |
| G-35.01.02P |
release and isolate stored energy in components |
stored energy is released and isolated in components according to manufacturers’ service information |
| G-35.01.03P |
clean components |
components are cleaned according to manufacturers’ service information |
| G-35.01.04P |
perform sensory inspections |
sensory inspections are performed to identify worn, damaged and defective components |
| G-35.01.05P |
perform operational checks |
operational checks are performed according to manufacturers’ service information |
| G-35.01.06P |
check fluid levels |
fluid levels are checked to determine if they meet manufacturers’ service information |
| G-35.01.07P |
collect oil samples from hydraulic reservoir or hydrostatic system reservoir |
oil samples are collected for analysis according to manufacturers’ service information |
| G-35.01.08P |
remove and replace consumables |
consumables are removed and replaced according to manufacturers’ service information |
| G-35.01.09P |
recycle and dispose of consumables |
consumables are recycled and disposed of according to jurisdictional regulations |
| G-35.01.10P |
lubricate components |
components are lubricated according to manufacturers’ service information |
| G-35.01.11P |
adjust components |
components are adjusted according to manufacturers’ service information |
| G-35.01.12P |
perform software updates |
software updates are performed according to manufacturers’ service information |
| G-35.01.13P |
document service information and inspection findings |
service information and inspection findings are documented according to manufacturers’ requirements for warranty, and for future reference and tracking |
Range of Variables
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer laptop, micrometers
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- components include: gaskets, seals, fluid conductors and conditioners, hoses, pumps, motors, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens, oil coolers
- sensory inspections include: noise, leaks, hot spots, burnt oil, smells
- consumables include: filters, oil, hoses, fittings
- adjust includes: pressure, flow, neutral calibration, safety systems, calibrating electronic controls
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| G-35.01.01L |
demonstrate knowledge of hydrostatic systems, their components, consumables, characteristics, applications and operation |
identify hydrostatic systems and their components and consumables, and describe their characteristics and applications |
| describe operating principles of hydrostatic systems |
| interpret information pertaining to hydrostatic systems found in manufacturers’ service information |
| identify pressure limits of hoses, tubing and fittings |
| identify types of hydrostatically powered applications |
| identify fluids and fluid conditioning systems, and describe their characteristics and applications |
| G-35.01.02L |
demonstrate knowledge of procedures to service hydrostatic systems and components |
identify tools and equipment used to service hydrostatic systems and components, and describe their applications and procedures for use |
| identify hazards and describe safe work practices to service hydrostatic systems |
| describe procedures to release and isolate stored energy |
| describe procedures to inspect hydrostatic systems and components |
| describe procedures to clean hydrostatic system components |
| describe procedures to service hydrostatic systems and their components |
| describe procedures to remove, replace, recycle and dispose of hydrostatic consumables |
| identify oil sampling procedures |
| identify materials that can be reconditioned, reused or recycled |
| G-35.01.03L |
demonstrate knowledge of emerging technologies pertaining to hydrostatic systems |
identify emerging technologies pertaining to hydrostatic systems |
| identify technologies that address emissions and pollution, and describe their characteristics and applications |
Range of Variables
- components include: gaskets, seals, fluid conductors and conditioners, hoses, pumps, motors, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens, oil coolers
- consumables include: filters, oil, hoses, fittings
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- hydrostatically powered applications include: skid steers, wheel loaders, dozers, lift trucks, vibratory compactors
- fluid conditioning systems include: filtration systems, heating and cooling devices, reservoirs
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer laptop, micrometers
- hazards include: stored high pressure, skin and eye irritation, flammability, high temperatures, fluid injection, spills, unexpected movement
G-35.02 - Diagnoses hydrostatic systems
G-35.02 - Diagnoses hydrostatic systems
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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 |
| G-35.02.01P |
identify symptoms of problems |
symptoms of problems are identified by consulting with customer or operator |
| G-35.02.02P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information |
| G-35.02.03P |
release and isolate stored energy |
stored energy is released and isolated in components according to manufacturers’ service information |
| G-35.02.04P |
perform sensory inspections |
sensory inspections are performed to identify conditions |
| G-35.02.05P |
verify complaint and expected performance |
complaint and expected performance is verified by comparing equipment operation to manufacturers’ service information |
| G-35.02.06P |
perform diagnostic procedures and tests |
diagnostic procedures and tests are performed according to manufacturers’ service information |
| G-35.02.07P |
verify diagnosis |
diagnosis is verified by interpreting test resultsand comparing them to manufacturers’ service information or expected values |
| G-35.02.08P |
remove and disassemble components to identify problem |
components are removed and disassembled to identify problem |
| G-35.02.09P |
inspect components for conditions |
components are inspected for conditions according to manufacturers’ service information |
| G-35.02.10P |
perform measurements |
measurements are performed and compared with manufacturers’ service information |
| G-35.02.11P |
obtain oil samples |
oil samples are obtained and results interpreted to identify problems and trends |
| G-35.02.12P |
perform failure analysis |
failure analysis is performed to determine root cause of failure |
| G-35.02.13P |
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 |
| G-35.02.14P |
interpret diagnostic results to determine next steps |
diagnostic results are interpreted to determine next steps |
Range of Variables
- symptoms of problems include:fail to move, low power, slow operation, internal and external leaking, intermittent or erratic operation, noisy operation, creeping in neutral, mistracking, overheating
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer, tachometers, laptop, micrometers
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- sensory inspections include: noise, leaks, hot spots, burnt oil, smells
- conditions include: wear, damage, defects, leaks
- tests include: pressure, flow, restriction, cycle time, drift
- components include: gaskets, seals, fluid conductors and conditioners, hoses, pumps, motors, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens, oil coolers
- next steps include: repairs, component replacement or adjustment, further diagnosis
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| G-35.02.01L |
demonstrate knowledge of hydrostatic systems, their components, consumables, characteristics, applications and operation |
identify hydrostatic systems and their components and consumables, and describe their characteristics and applications |
| describe operating principles of hydrostatic systems |
| interpret information pertaining to hydrostatic systems found in manufacturers’ service information |
| identify pressure limits of hoses, tubing and fittings |
| identify and describe hydrostatically powered applications |
| identify fluids and fluid conditioning systems, and describe their characteristics and applications |
| G-35.02.02L |
demonstrate knowledge of procedures to diagnose hydrostatic systems and components |
identify tools and equipment used to diagnose hydrostatic systems and components, and describe their applications and procedures for use |
| identify hazards and describe safe work practices to diagnose hydrostatic systems and components |
| describe common causes and symptoms of problems |
| describe procedures to release and isolate stored energy |
| describe procedures to inspect hydrostatic systems and components |
| describe procedures to test hydrostatic systems and components |
| describe procedures to diagnose hydrostatic systems and components |
| describe oil sampling procedures |
| identify steps for failure analysis |
| identify materials that can be reconditioned, reused or recycled |
| G-35.02.03L |
demonstrate knowledge of emerging technologies pertaining to hydrostatic systems |
identify emerging technologies pertaining to hydrostatic systems |
| identify technologies that address emissions and pollution, and describe their characteristics and applications |
Range of Variables
- components include: gaskets, seals, fluid conductors and conditioners, hoses, pumps, motors, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens, oil coolers
- consumables include: filters, oil, hoses, fittings
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- hydrostatically powered applications include: skid steers, wheel loaders, dozers, lift trucks, vibratory compactors
- fluid conditioning systems include: filtration systems, heating and cooling devices, reservoirs
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer, tachometers, laptop, micrometers
- hazards include: stored high pressure, skin and eye irritation, flammability, high temperatures, fluid injection, spills, unexpected equipment movement
- symptoms of problems include:fail to move, low power, slow operation, internal and external leaking, intermittent or erratic operation, noisy operation, creeping in neutral, mistracking, overheating
G-35.03 - Repairs hydrostatic systems
G-35.03 - Repairs hydrostatic 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 |
| G-35.03.01P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information |
| G-35.03.02P |
release and isolate stored energy in components |
stored energy is released and isolated in components according to manufacturers’ service information |
| G-35.03.03P |
clean components |
components are cleaned according to manufacturers’ service information |
| G-35.03.04P |
remove, disassemble and inspect components for conditions |
components are removed, disassembled and inspected for conditions according to manufacturers’ service information |
| G-35.03.05P |
flush hydrostatic system |
hydrostatic system is flushed |
| G-35.03.06P |
select parts and materials |
parts and materials are selected according to repair requirements and manufacturers’ service information |
| G-35.03.07P |
calibrate hydrostatic drive system and components |
hydrostatic drive system and components are calibrated according to test results, field observations and manufacturers’ service information |
| G-35.03.08P |
assemble and install components |
components are assembled and installed according to manufacturers’ service information |
| G-35.03.09P |
replace components |
components are replaced according to manufacturers’ service information |
| G-35.03.10P |
rebuild components |
components are rebuilt according to manufacturers’ service information |
| G-35.03.11P |
repair components |
components are repaired following repair sequence according to manufacturers’ service information |
| G-35.03.12P |
reassemble components and perform measurements |
components are reassembled and measurements are performed according to manufacturers’ service information |
| G-35.03.13P |
remove and replace consumables |
consumables are removed and replaced according to manufacturers’ service information |
| G-35.03.14P |
recycle and dispose of consumables |
consumables are recycled and disposed of according to jurisdictional regulations |
| G-35.03.15P |
perform pre-lubrication, bleeding and priming procedures |
pre-lubrication, bleeding and priming procedures are performed according to manufacturers’ service information |
| G-35.03.16P |
perform start-up and break-in procedures |
start-up and break-in procedures are performed according to manufacturers’ service information |
| G-35.03.17P |
adjust components and parts |
components and parts are adjusted according to manufacturers’ service information |
| G-35.03.18P |
verify repairs |
repairs are verified according to manufacturers’ service information |
| G-35.03.19P |
document repairs |
repairs are documented according to manufacturers’ requirements for warranty, liability, future reference and tracking |
Range of Variables
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer, tachometers, laptop, micrometers, stopwatches
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- components include: gaskets, seals, hoses, fluid conductors and conditioners, fittings, pumps, motors, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens, oil coolers
- conditions include: scoring, wear patterns, heat discolouration, damage, defect
- consumables include: filters, oil, hoses, fittings, gaskets, seals
- adjust includes: pressure, flow, neutral calibration, safety systems, calibrating controls
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| G-35.03.01L |
demonstrate knowledge of hydrostatic systems, their components, consumables, characteristics, applications and operation |
identify hydrostatic systems and their components and consumables, and describe their characteristics and applications |
| describe operating principles of hydrostatic systems |
| interpret information pertaining to hydrostatic systems found in manufacturers’ service information |
| identify pressure limits of hoses, tubing and fittings |
| identify types of hydrostatically powered applications |
| identify fluids and fluid conditioning systems, and describe their characteristics and applications |
| 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 |
| G-35.03.02L |
demonstrate knowledge of procedures to repair hydrostatic systems and components |
identify tools and equipment used to repair hydrostatic systems and components, and describe their applications and procedures for use |
| identify hazards and describe safe work practices to repair hydrostatic systems and components |
| describe procedures to release and isolate stored energy |
| describe procedures to remove, disassemble, assemble and inspect components |
| describe procedures to repair, replace or rebuild components |
| describe procedures to adjust components |
| describe procedures to recycle and dispose of components and consumables |
| describe methods to verify repairs |
| identify materials that can be reconditioned, reused or recycled |
| identify practices that reduce material waste |
| G-35.03.03L |
demonstrate knowledge of emerging technologies pertaining to hydrostatic systems |
identify emerging technologies pertaining to hydrostatic systems |
| identify technologies that address emissions and pollution, and describe their characteristics and applications |
Range of Variables
- components include: gaskets, seals, hoses, fluid conductors and conditioners, fittings, pumps, motors, relief valves, control valves, reservoir, ECMs, solenoids, sensors, harnesses, accumulators, filters, screens, oil coolers
- consumables include: filters, oil, hoses, fittings, gaskets, seals
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- hydrostatically powered applications include: skid steers, wheel loaders, dozers, lift trucks, vibratory compactors
- fluid conditioning systems include: filtration systems, heating and cooling devices, reservoirs
- tools and equipment include: hand tools, shop tools, lifting and holding equipment, pressure gauges, flow meters, temperature gauges, electronic service tools, onboard computer, tachometers, laptop, micrometers, stopwatches
- hazards include: stored high pressure, skin and eye irritation, flammability, high temperatures, fluid injection, spills, unexpected equipment movement
- adjust includes: pressure, flow, neutral calibration, safety systems, calibrating controls
Task G-36 Services, diagnoses and repairs pneumatic systems
Task Descriptor
Pneumatic systems compress air to transfer energy smoothly from one component to another. Some applications of pneumatic systems are air starters, drills, hammers and industrial compressors.
Heavy duty equipment technicians must service, diagnose and repair pneumatic systems to ensure proper function and reduce down time.
G-36.01 - Services pneumatic systems
G-36.01 - Services pneumatic 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 |
| G-36.01.01P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information |
| G-36.01.02P |
inspect reservoir for signs of rust and structural damage |
reservoir is inspected using visual and auditory checks and leak down tests |
| G-36.01.03P |
release and isolate stored energy in components |
stored energy is released and isolated in components according to manufacturers’ service information |
| G-36.01.04P |
clean components |
components are cleaned according to manufacturers’ service information |
| G-36.01.05P |
perform sensory inspections |
sensory inspections are performed to identify worn, damaged and defective components |
| G-36.01.06P |
perform measurements |
measurements are performed and compared with manufacturers’ service information |
| G-36.01.07P |
perform leak down test |
leak down test is performed according to industry standards and manufacturers’ service information |
| G-36.01.08P |
check fluid levels |
fluid levels are checked to determine if they meet manufacturers’ service information |
| G-36.01.09P |
remove and replace consumables |
consumables are removed and replaced according to manufacturers’ service information |
| G-36.01.10P |
recycle and dispose of consumables |
consumables are recycled and disposed of according to jurisdictional regulations |
| G-36.01.11P |
lubricate components |
components are lubricated according to manufacturers’ service information |
| G-36.01.12P |
adjust and calibrate components |
components are adjusted and calibrated according to manufacturers’ service information |
| G-36.01.13P |
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: pressure gauges, flow meters, temperature measuring devices, tachometers, feeler gauges, dial indicators, micrometers (inside, outside)
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- components include: reservoirs, hoses, fittings, compressors, filters, valves, switches, dryers, gauges, sensors, regulators
- sensory inspections include: performing walkaround and listening for leaks, inspecting reservoir for structural integrity
- measurements include: pressure, air flow
- consumables include: filters, oil, methyl hydrate
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| G-36.01.01L |
demonstrate knowledge of pneumatic systems, their components and consumables, characteristics, applications and operation |
identify pneumatic systems, components and consumables, and describe their characteristics and applications |
| describe operating principles of pneumatic systems |
| interpret information pertaining to pneumatic systems found in manufacturers’ service information |
| identify pressure limits of hoses, tubing and fittings |
| identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications |
| G-36.01.02L |
demonstrate knowledge of procedures to service pneumatic systems and components |
identify tools and equipment used to service pneumatic systems and components, and describe their applications and procedures for use |
| identify hazards and describe safe work practices to service pneumatic systems |
| describe procedures to release and isolate stored energy |
| describe procedures to inspect pneumatic systems and components |
| describe procedures to clean pneumatic system components |
| describe procedures to service pneumatic systems and components |
| describe procedures to adjust and calibrate pneumatic systems and components |
| describe procedures to remove, replace, recycle and dispose of pneumatic consumables |
| identify materials that can be reused |
| identify practices that reduce material waste |
Range of Variables
- components include: reservoirs, hoses, fittings, compressors, filters, valves, switches, dryers, gauges, sensors, regulators
- consumables include: filters, oil, methyl hydrate
- applications include: drills, hammers, industrial air compressors, air starters
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- tools and equipment include: pressure gauges, flow meters, temperature measuring devices, tachometers, feeler gauges, dial indicators, micrometers (inside, outside)
- hazards include: stored high pressure, skin and eye irritation, frostbite, flammability, high temperatures, moving parts, crush/pinch points, heavy objects, injection
G-36.02 - Diagnoses pneumatic systems
G-36.02 - Diagnoses pneumatic 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 |
| G-36.02.01P |
identify symptoms of problems |
symptoms of problems are identified by consulting with customer or operator |
| G-36.02.02P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information |
| G-36.02.03P |
perform sensory inspections |
sensory inspectionsare performed to identify conditions |
| G-36.02.04P |
verify complaint and expected performance |
complaint and expected performance is verified by comparing equipment operation to manufacturers’ service information |
| G-36.02.05P |
perform diagnostic procedures and tests |
diagnostic procedures and tests are performed according to manufacturers’ service information |
| G-36.02.06P |
verify diagnosis |
diagnosis is verified by interpreting test results and comparing them to manufacturers’ service information or expected values |
| G-36.02.07P |
clean components |
components are cleaned according to manufacturers’ service information |
| G-36.02.08P |
remove and disassemble components to identify or confirm problem |
components are removed and disassembled to identify or confirm problem |
| G-36.02.09P |
inspect components for conditions |
components are inspected for conditions according to manufacturers’ service information |
| G-36.02.10P |
perform measurements |
measurements are performed and compared with manufacturers’ service information |
| G-36.02.11P |
perform failure analysis |
failure analysis is performed to determine root cause of failure |
| G-36.02.12P |
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 |
| G-36.02.13P |
interpret diagnostic results to determine next steps |
diagnostic results are interpreted to determine next steps |
Range of Variables
- symptoms of problems include:failure to operate, slow or weak operation, internal and external leaking, intermittent or erratic operation, noisy operation
- tools and equipment include: pressure gauges, flow meters, temperature gauges, restriction gauges
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- conditions include: wear, damage, defects, leaks, restrictions
- tests include: pressure, flow, restriction, cycle time
- components include: reservoirs, hoses, fittings, compressors, filters, valves, switches, dryers, gauges, sensors, regulators
- measurements include: pressure, air flow, cycle time, temperature
- next steps include: repairs, component replacement or adjustment, further diagnosis
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| G-36.02.01L |
demonstrate knowledge of pneumatic systems, their components, consumables, characteristics, applications and operation |
identify pneumatic systems, components and consumables, and describe their characteristics and applications |
| describe operating principles of pneumatic systems |
| interpret information pertaining to pneumatic systems found in manufacturers’ service information |
| identify pressure limits of hoses, tubing and fittings |
| identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications |
| G-36.02.02L |
demonstrate knowledge of procedures to diagnose pneumatic systems and components |
identify tools and equipment used to diagnose pneumatic systems and components, and describe their applications and procedures for use |
| identify hazards and describe safe work practices to diagnose pneumatic systems and components |
| describe common causes and symptoms of problems |
| describe procedures to release and isolate stored energy |
| describe procedures to inspect pneumatic systems and components |
| describe procedures to test pneumatic systems and components |
| describe procedures to diagnose pneumatic systems and components |
| identify conditions found while diagnosing pneumatic systems and their components |
| identify steps for failure analysis |
Range of Variables
- components include: reservoirs, hoses, fittings, compressors, filters, valves, switches, dryers, gauges, sensors, regulators
- consumables include: filters, oil, methyl hydrate
- applications include: drills, hammers, industrial air compressors, air starters
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- tools and equipment include: pressure gauges, flow meters, temperature gauges, restriction gauges
- hazards include: stored high pressure, skin and eye irritation, frostbite, flammability, high temperatures, moving parts, crush/pinch points, heavy objects, injection
- symptoms of problems include:failure to operate, slow or weak operation, internal and external leaking, intermittent or erratic operation, noisy operation
- conditions include: wear, damage, defects, leaks, restrictions
G-36.03 - Repairs pneumatic systems
G-36.03 - Repairs pneumatic 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 |
| G-36.03.01P |
select and use tools and equipment |
tools and equipment are selected and used according to task and manufacturers’ service information |
| G-36.03.02P |
release and isolate stored energy in components |
stored energy is released and isolated in components according to manufacturers’ service information |
| G-36.03.03P |
clean components |
components are cleaned according to manufacturers’ service information |
| G-36.03.04P |
remove, disassemble and inspect components for conditions |
components are removed, disassembled and inspected for conditions according to manufacturers’ service information |
| G-36.03.05P |
select parts and materials |
parts and materials are selected according to repair requirements and manufacturers’ service information |
| G-36.03.06P |
follow repair sequence |
repair sequence is followed according to manufacturers’ service information |
| G-36.03.07P |
disassemble, assemble and install components |
components are disassembled, assembled and installed according to manufacturers’ service information |
| G-36.03.08P |
replace components |
components are replaced according to manufacturers’ service information |
| G-36.03.09P |
repair components |
components are repaired according to manufacturers’ service information |
| G-36.03.10P |
rebuild components |
components are rebuilt according to manufacturers’ service information |
| G-36.03.11P |
reassemble components and perform measurements |
components are reassembled and measurements are performed according to manufacturers’ service information |
| G-36.03.12P |
perform pre-lubrication procedures |
pre-lubrication procedures are performed according to manufacturers’ service information |
| G-36.03.13P |
perform start-up and break-in procedures |
start-up and break-in procedures are performed according to manufacturers’ service information |
| G-36.03.14P |
adjust and calibrate components and parts |
components and parts are adjusted and calibrated according to manufacturers’ service information |
| G-36.03.15P |
verify repairs |
repairs are verified using methods according to manufacturers’ service information |
| G-36.03.16P |
document repairs performed |
repairs are documented according to manufacturers’ requirements for warranty, liability, future reference and tracking |
Range of Variables
- tools and equipment include: pressure gauges, flow meters, temperature measuring devices, tachometers, feeler gauges, dial indicators, micrometers (inside, outside), laptop
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- components include: reservoirs, hoses, fittings, compressors, filters, valves, switches, dryers, gauges, sensors, regulators
- conditions include: wear, damage, defects, leaks, restrictions
- parts and materials include: gaskets, seals, sealants, fasteners, hoses, diaphragms, fittings
- measurements include: pressure, air flow, cycle time, temperature, tolerances
- adjust includes: setting pressure, flow, RPM
- methods include: operational tests, verifying pressures and flow
Knowledge
| Reference Code |
Learning Outcomes |
Learning Objectives |
| G-36.03.01L |
demonstrate knowledge of pneumatic systems, their components, consumables, characteristics, applications and operation |
identify pneumatic systems, components and consumables, and describe their characteristics and applications |
| describe operating principles of pneumatic systems |
| interpret information pertaining to pneumatic systems found in manufacturers’ service information |
| identify pressure limits of hoses, tubing and fittings |
| identify types, viscosity and quality of fluids and lubricants, and describe their characteristics and applications |
| G-36.03.02L |
demonstrate knowledge of procedures to repair pneumatic systems and components |
identify tools and equipment used to repair pneumatic systems and components, and describe their applications and procedures for use |
| identify hazards and describe safe work practices to repair pneumatic systems and components |
| describe procedures to release and isolate stored energy |
| describe procedures to remove, disassemble, assemble and inspect components |
| describe procedures to repair or replace components |
| describe procedures to adjust and calibrate components |
| describe procedures to recycle and dispose of components |
| describe procedures to perform software updates |
| identify materials that can be reconditioned or reused |
| identify practices that reduce material waste |
Range of Variables
- components include: reservoirs, hoses, fittings, compressors, filters, valves, switches, dryers, gauges,
- sensors, regulators
- consumables include: filters, oil, methyl hydrate, desiccant
- applications include: drills, hammers, industrial air compressors, air starters
- manufacturers’ service information includes: maintenance schedule, specifications, recommendations, procedures, standards
- tools and equipment include: pressure gauges, flow meters, temperature measuring devices, tachometers, feeler gauges, dial indicators, micrometers (inside, outside), laptop
- hazards include: stored high pressure, skin and eye irritation, frostbite, flammability, high temperatures, moving parts, crush/pinch points, heavy objects, injection
- adjust includes: setting pressure, flow, RPM