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2013 NATEF Task Area A-2 Automatic Transmission 7-2013

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

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2013 NATEF Task Area A-2 Automatic Transmission 7-2013

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  1. 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 Competencies 1 = Demonstrated Exposure and has observed the competency 2 = Applies the competency but only mastered a few essential attributes 3 = Capable of the competency but needs further practice 4 = Performs the competency satisfactorily [Proficient] 5 = Mastered the competency [Exemplary]

  2. NATEF Task Area A-2 Automatic Transmission & Transaxle Identify and interpret transmission/transaxle concern, differentiate between engine performance and transmission/transaxle concerns; determine necessary action. A2.A.1 P-1

  3. NATEF Task Area A-2 Automatic Transmission & Transaxle Research applicable vehicle and service information fluid type, vehicle service history, service precautions, and technical service bulletins. A2.A.2 P-1

  4. NATEF Task Area A-2 Automatic Transmission & Transaxle Diagnose fluid loss and condition concerns; determine necessary action. A2.A.3 P-1

  5. NATEF Task Area A-2 Automatic Transmission & Transaxle Check fluid level in a transmission or a transaxle equipped with a dip-stick. A2.A.4 P-1

  6. NATEF Task Area A-2 Automatic Transmission & Transaxle Check fluid level in a transmission or a transaxle not equipped with a dip-stick. A2.A.5 P-1

  7. NATEF Task Area A-2 Automatic Transmission & Transaxle Perform pressure tests (including transmissions/transaxles equipped with electronic pressure control); determine necessary action. A2.A.6 P-1

  8. NATEF Task Area A-2 Automatic Transmission & Transaxle Diagnose noise and vibration concerns; determine necessary action. A2.A.7 P-2

  9. NATEF Task Area A-2 Automatic Transmission & Transaxle Perform stall test; determine necessary action. A2.A.8 P-3

  10. NATEF Task Area A-2 Automatic Transmission & Transaxle Perform lock-up converter system tests; determine necessary action. A2.A.9 P-3

  11. NATEF Task Area A-2 Automatic Transmission & Transaxle Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles. A2.A.10 P-1

  12. NATEF Task Area A-2 Automatic Transmission & Transaxle Diagnose electronic transmission/transaxle control systems using appropriate test equipment and service information. A2.A.11 P-1

  13. NATEF Task Area A-2 Automatic Transmission & Transaxle Diagnose pressure concerns in a transmission using hydraulic principles (Pascal’s Law). A2.A.12 P-2

  14. NATEF Task Area A-2 Automatic Transmission & Transaxle Inspect, adjust, and replace external manual valve shift linkage, transmission range sensor/switch, and park/neutral position switch. A2.B.1 P-2

  15. NATEF Task Area A-2 Automatic Transmission & Transaxle Inspect for leakage; replace external seals, gaskets, and bushings. A2.B.2 P-2

  16. NATEF Task Area A-2 Automatic Transmission & Transaxle 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

  17. NATEF Task Area A-2 Automatic Transmission & Transaxle Drain and replace fluid and filter(s). A2.B.4 P-1

  18. NATEF Task Area A-2 Automatic Transmission & Transaxle Inspect powertrain mounts. A2.B.5 P-2

  19. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.1 Remove and reinstall transmission/transaxle and torque converter; inspect engine core plugs, rear crankshaft seal, dowel pins, dowel pin holes, and mating surfaces. P-1

  20. NATEF Task Area A-2 Automatic Transmission & Transaxle “Oldie” Remove and reinstall transaxle and torque converter assembly.

  21. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.2 Inspect, leak test, and flush or replace transmission/transaxle oil cooler, lines, and fittings. P-1

  22. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.3 Inspect converter flex (drive) plate, converter attaching bolts, converter pilot, converter pump drive surfaces, converter end play, and crankshaft pilot bore. P-2

  23. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.4 Describe the operational characteristics of a continuously variable transmission (CVT). P-3

  24. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.5 Describe the operational characteristics of a hybrid vehicle drive train. P-3

  25. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.6 Disassemble, clean, and inspect transmission & transaxle. P-3

  26. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.7 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. P-3

  27. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.8 Inspect servo bore, piston, seals, pin, spring, and retainers; determine necessary action. P-3

  28. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.9 Assemble transmission/transaxle. P-3

  29. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.9 Assemble transmission/transaxle. P-3

  30. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.10 Inspect, measure, and reseal oil pump (F & R) assembly and components. P-3

  31. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.11 Measure endplay or preload; determine necessary action. P-1

  32. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.12 Inspect, measure, and replace thrust washers and bearings. P-3

  33. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.13 Inspect oil delivery circuits, including seal rings, ring grooves, and sealing surface areas, feed pipes, orifices, and check valves/balls. P-3

  34. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.14 Inspect bushings; determine necessary action. P-3

  35. NATEF Task Area A-2 Automatic Transmission & Transaxle “Oldie” Inspect extension housing, bushings and seals; perform necessary action.

  36. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.15 Inspect and measure planetary gear assembly (includes sun, ring gear, thrust washers, planetary gears. and carrier assembly); determine necessary action. P-3

  37. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.16 Inspect case bores, passages, bushings, vents, and mating surfaces; determine necessary action. P-3

  38. NATEF Task Area A-2 Automatic Transmission & Transaxle “Oldie” Inspect, measure, and replace thrust washers and bearings.

  39. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.17 Diagnose and inspect transaxle drive, link chains, sprockets, gears, bearings, and bushings; perform necessary action. P-3

  40. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.18 Inspect, measure, repair, adjust or replace transaxle final drive components. P-3

  41. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.19 Inspect clutch drum, piston, check-balls, springs, retainers, seals, friction and pressure plates; determine necessary action. P-3

  42. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.20 Measure clutch pack clearance; determine necessary action. P-1

  43. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.21 Air test operation of clutch and servo assemblies. P-1

  44. NATEF Task Area A-2 Automatic Transmission & Transaxle A2.C.22 Inspect roller and sprag clutch, races, rollers, sprags, springs, cages, and retainers; determine necessary action. P-3

  45. NATEF Task Area A-2 Automatic Transmission & Transaxle “Oldie” Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles. Carrier drives = overdrive Carrier driven = reduction Carrier held = reverse Two members held = direct drive Nothing driven or held = neutral Parking Pawl engaged to the output shaft = park

  46. NATEF Task Area A-2 Automatic Transmission & Transaxle “Oldie” Diagnose electrical/electronic concerns using principles of electricity (Ohms' Law).

  47. NATEF Task Area A-2 Automatic Transmission & Transaxle “Oldie” Inspect and reinstall parking pawl, shaft, spring, and retainer; determine necessary action.

  48. NATEF Task Area A-2 Automatic Transmission & Transaxle “Oldie” Inspect bands and drums; determine necessary action.

  49. NATEF Task Area A-2 Automatic Transmission & Transaxle “Oldie” Inspect accumulator bore, piston, seals, spring, and retainer; determine necessary action.

  50. NATEF Task Area A-2 Automatic Transmission & Transaxle “Oldie” Diagnose mechanical and vacuum control system concerns; determine action.

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