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 al Rubric for NATEF Competencies emonstrated Exposure and has observed the competency pplies the competency but only mastered a few essential attri apable of the competency but needs further practice erforms the competency satisfactorily [Proficient] astered the competency [Exemplary]
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2013 NATEF Task Area A-2 Automatic Transmission 7-2013 A. General Transmission & Transaxle Diagnosis B. Transmission & Transaxle Maintenance & Adjustment.
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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
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
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.
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).
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”
NATEF Task Area A-2 Automatic Transmission & TransaxleA. General Transmission & Transaxle Diagnosis
Locate and interpret vehicle and major component identification numbers (VIN, vehicle certification labels, calibration decals).