2013 natef task area a-2 automatic transmission 7-2013
DESCRIPTION
2013 NATEF Task Area A-2 Automatic Transmission 7-2013. A. General Transmission & Transaxle Diagnosis B. Transmission & Transaxle Maintenance & Adjustment C. In-Vehicle Transmission & Transaxle Repair D. Off-Vehicle Transmission & Transaxle Repair. Typical Rubric for NATEF Competencies - PowerPoint PPT PresentationTRANSCRIPT
2013 NATEF Task Area A-2 Automatic Transmission7-2013
• A. General Transmission & Transaxle Diagnosis
• B. Transmission & Transaxle Maintenance & Adjustment
• C. In-Vehicle Transmission & Transaxle Repair
• D. Off-Vehicle Transmission & Transaxle Repair
Typical Rubric for NATEF Competencies1 = Demonstrated Exposure and has observed the competency2 = Applies the competency but only mastered a few essential attributes3 = Capable of the competency but needs further practice4 = Performs the competency satisfactorily [Proficient]5 = Mastered the competency [Exemplary]
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Identify and interpret transmission/transaxle concern, differentiate between engine performance and transmission/transaxle concerns; determine necessary action.
A2.A.1
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Research applicable vehicle and service information fluid type, vehicle service history, service precautions, and technical service bulletins.
A2.A.2
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Diagnose fluid loss and condition concerns; determine necessary action.A2.A.3
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Check fluid level in a transmission or a transaxle equipped with a dip-stick.A2.A.4
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Check fluid level in a transmission or a transaxle not equipped with a dip-stick.A2.A.5
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Perform pressure tests (including transmissions/transaxles equipped with electronic pressure control); determine necessary action.
A2.A.6
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Diagnose noise and vibration concerns; determine necessary action.A2.A.7
P-2
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Perform stall test; determine necessary action.A2.A.8
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Perform lock-up converter system tests; determine necessary action.A2.A.9
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles.
A2.A.10
P-1
NATEF Task Area A-2 Automatic Transmission & Transaxle
P-1
A. General Transmission & Transaxle Diagnosis
Diagnose electronic transmission/transaxle control systems using appropriate test equipment and service information.
A2.A.11
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Diagnose pressure concerns in a transmission using hydraulic principles (Pascal’s Law).
A2.A.12
P-2
NATEF Task Area A-2 Automatic Transmission & Transaxle
P-2
B. In-Vehicle Transmission & Transaxle Repair
Inspect, adjust, and replace external manual valve shift linkage, transmission range sensor/switch, and park/neutral position switch.
A2.B.1
NATEF Task Area A-2 Automatic Transmission & TransaxleB. In-Vehicle Transmission & Transaxle Repair
Inspect for leakage; replace external seals, gaskets, and bushings.A2.B.2
P-2
NATEF Task Area A-2 Automatic Transmission & TransaxleB. In-Vehicle Transmission & Transaxle Repair
Inspect, test, adjust, repair, or replace electrical/electronic components and circuits including computers, solenoids, sensors, relays, terminals, connectors, switches, and harnesses.
A2.B.3
P-1
NATEF Task Area A-2 Automatic Transmission & Transaxle
Drain and replace fluid and filter(s).A2.B.4
B. In-Vehicle Transmission & Transaxle Repair
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleB. In-Vehicle Transmission & Transaxle Repair
Inspect powertrain mounts.A2.B.5
P-2
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Remove and reinstall transmission/transaxle and torque converter; inspect engine core plugs, rear crankshaft seal, dowel pins, dowel pin holes, and mating surfaces.
A2.C.1
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Remove and reinstall transaxle and torque converter assembly.“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect, leak test, and flush or replace transmission/transaxle oil cooler, lines, and fittings.
A2.C.2
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect converter flex (drive) plate, converter attaching bolts, converter pilot, converter pump drive surfaces, converter end play, and crankshaft pilot bore.
A2.C.3
P-2
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Describe the operational characteristics of a continuously variable transmission (CVT).
A2.C.4
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Describe the operational characteristics of a hybrid vehicle drive train.A2.C.5
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Disassemble, clean, and inspect transmission & transaxle. P-3
A2.C.6
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect, measure, clean, and replace valve body (includes surfaces and bores, springs, valves, sleeves, retainers, brackets, check-balls, screens, spacers, and gaskets), and torque valve body bolts.
A2.C.7
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect servo bore, piston, seals, pin, spring, and retainers; determine necessary action.
A2.C.8
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Assemble transmission/transaxle.A2.C.9
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Assemble transmission/transaxle.A2.C.9
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect, measure, and reseal oil pump (F & R) assembly and components.A2.C.10
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Measure endplay or preload; determine necessary action.A2.C.11
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect, measure, and replace thrust washers and bearings.A2.C.12
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect oil delivery circuits, including seal rings, ring grooves, and sealing surface areas, feed pipes, orifices, and check valves/balls.
A2.C.13
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect bushings; determine necessary action.A2.C.14
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleB. In-Vehicle Transmission & Transaxle Repair
Inspect extension housing, bushings and seals; perform necessary action.“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect and measure planetary gear assembly (includes sun, ring gear, thrust washers, planetary gears. and carrier assembly); determine necessary action.
A2.C.15
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect case bores, passages, bushings, vents, and mating surfaces; determine necessary action.
A2.C.16
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleD. Off-Vehicle Transmission & Transaxle Repair
Inspect, measure, and replace thrust washers and bearings.“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Diagnose and inspect transaxle drive, link chains, sprockets, gears, bearings, and bushings; perform necessary action.
A2.C.17
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect, measure, repair, adjust or replace transaxle final drive components.A2.C.18
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect clutch drum, piston, check-balls, springs, retainers, seals, friction and pressure plates; determine necessary action.
A2.C.19
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Measure clutch pack clearance; determine necessary action.A2.C.20
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Air test operation of clutch and servo assemblies.A2.C.21
P-1
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect roller and sprag clutch, races, rollers, sprags, springs, cages, and retainers; determine necessary action.
A2.C.22
P-3
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles.
Carrier drives = overdriveCarrier driven = reductionCarrier held = reverse Two members held = direct driveNothing driven or held = neutralParking Pawl engaged to the output shaft = park
“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Diagnose electrical/electronic concerns using principles of electricity (Ohms' Law).
“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect and reinstall parking pawl, shaft, spring, and retainer; determine necessary action.
“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect bands and drums; determine necessary action.“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Inspect accumulator bore, piston, seals, spring, and retainer; determine necessary action.
“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Diagnose mechanical and vacuum control system concerns; determine action.“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleB. In-Vehicle Transmission & Transaxle Repair
Inspect, adjust or replace (as applicable) vacuum modulator; inspect and repair or replace lines and hoses.
“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleB. In-Vehicle Transmission & Transaxle Repair
Inspect, repair, and replace governor assembly.“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleB. In-Vehicle Transmission & Transaxle Repair
Inspect and replace external seals and gaskets.“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleB. In-Vehicle Transmission & Transaxle Repair
Inspect and replace speedometer drive gear, driven gear, vehicle speed sensor (VSS), and retainers.
“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleC. Off-Vehicle Transmission & Transaxle Repair
Measure torque converter endplay and check for interference; check stator one-way clutch.
“Oldie”
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Complete work order to include customer information, vehicle identifying information, verify customer concern, related service history, cause, & correction.
“Oldie”