| A. General |
| MHT2A001 |
Research vehicle service information, including fluid type, vehicle service history, service precautions, and technical service bulletins. |
| MHT2A002 |
Identify drive train components, transmission type, and configuration. |
| MHT2A003 |
Use appropriate electronic service tool(s) and procedures to diagnose problems; check, record, and clear diagnostic codes; interpret digital multimeter (DMM) readings. |
| B. Clutch |
| MHT2B001 |
Inspect and adjust clutch, clutch brake, linkage, cables, levers, brackets, bushings, pivots, springs, and clutch safety switch (includes push-type and pull-type); check pedal height and travel; determine needed action. |
| MHT2B002 |
Inspect clutch master cylinder fluid level; check clutch master cylinder, slave cylinder, lines, and hoses for leaks and damage; determine needed action. |
| MHT2B003 |
Inspect, adjust, repair, and/or replace hydraulic clutch slave and master cylinders, lines, and hoses; bleed system. |
| MHT2B004 |
Inspect, adjust, lubricate, or replace release (throw-out) bearing, sleeve, bushings, springs, housing, levers, release fork, fork pads, rollers, shafts, and seals. |
| MHT2B005 |
Inspect, adjust, and/or replace single-disc clutch pressure plate and clutch disc. |
| MHT2B006 |
Inspect, adjust, and/or replace two-plate clutch pressure plate, clutch discs, intermediate plate, and drive pins/lugs. |
| MHT2B007 |
Inspect and/or replace clutch brake assembly; inspect input shaft and bearing retainer; determine needed action. |
| MHT2B008 |
Inspect, adjust, and/or replace self-adjusting/continuous-adjusting clutch mechanisms. |
| MHT2B009 |
Inspect and/or replace pilot bearing. |
| MHT2B010 |
Identify causes of clutch noise, binding, slippage, pulsation, vibration, grabbing, dragging, and chatter problems; determine needed action. |
| MHT2B011 |
Remove and install flywheel; inspect mounting area on crankshaft; inspect rear main oil seal; measure crankshaft end play; determine needed action. |
| MHT2B012 |
Inspect flywheel and starter ring gear; measure flywheel face; measure pilot bore runout; determine needed action. |
| MHT2B013 |
Inspect flywheel housing-to-transmission housing/engine mating surface(s); measure flywheel housing face and bore runout; determine needed action. |
| C. Transmission |
| MHT2C001 |
Inspect transmission shifter and linkage; inspect and/or replace transmission mounts, insulators, and mounting bolts. |
| MHT2C002 |
Inspect transmission for leakage; determine needed action. |
| MHT2C003 |
Replace transmission cover plates, gaskets, seals, and cap bolts; inspect seal surfaces and vents; determine needed action. |
| MHT2C004 |
Check transmission fluid level and condition; determine needed action. |
| MHT2C005 |
Inspect transmission breather; inspect transmission oil filters, coolers, and related components; determine needed action. |
| MHT2C006 |
Inspect speedometer components; determine needed action. |
| MHT2C007 |
Inspect and test function of REVERSE light, NEUTRAL start, and warning device circuits; determine needed action. |
| MHT2C008 |
Inspect, adjust, and replace transmission covers, rails, forks, levers, bushings, sleeves, detents, interlocks, springs, and lock bolts/safety wires. |
| MHT2C009 |
Identify causes of transmission noise, shifting concerns, lockup, jumping out-of-gear, overheating, and vibration problems; determine needed repairs. |
| MHT2C010 |
Inspect, test, repair, and/or replace air shift controls, lines, hoses, valves, regulators, filters, and cylinder assemblies. |
| MHT2C011 |
Remove and reinstall transmission. |
| MHT2C012 |
Inspect input shaft, gear, spacers, bearings, retainers, and slingers; determine needed action. |
| MHT2C013 |
Inspect and adjust power take-off (PTO) assemblies, controls, and shafts; determine needed action. |
| MHT2C014 |
Inspect and test transmission temperature gauge, wiring harnesses, and sensor/sending unit; determine needed action. |
| MHT2C015 |
Inspect and test operation of automatic transmission, components, and controls; diagnose automatic transmission system problems; determine needed action. |
| MHT2C016 |
Inspect and test operation of automated mechanical transmission, components, and controls; diagnose automated mechanical transmission system problems; determine needed action. |
| D. Driveshaft and Universal Joints |
| MHT2D001 |
Inspect, service, and/or replace driveshafts, slip joints, yokes, drive flanges, support bearings, universal joints, boots, seals, and retaining/mounting hardware; check phasing of all shafts. |
| MHT2D002 |
Identify causes of driveshaft and universal joint noise and vibration problems; determine needed action. |
| MHT2D003 |
Inspect driveshaft center support bearings and mounts; determine needed action. |
| MHT2D004 |
Measure driveline angles; determine needed action. |
| E. Drive Axles |
| MHT2E001 |
Check and repair fluid leaks; inspect drive axle housing assembly, cover plates, gaskets, seals, vent/breather, and magnetic plugs. |
| MHT2E002 |
Check drive axle fluid level and condition; check drive axle filter; determine needed action. |
| MHT2E003 |
Inspect, adjust, repair, and/or replace air-operated power divider (inter-axle differential) assembly including: diaphragms, seals, springs, yokes, pins, lines, hoses, fittings, and controls. |
| MHT2E004 |
Inspect drive axle shafts; determine needed action. |
| MHT2E005 |
Remove and replace wheel assembly; check rear wheel seal and axle flange for leaks; determine needed action. |
| MHT2E006 |
Inspect, repair, or replace drive axle lubrication system pump, troughs, collectors, slingers, tubes, and filters. |
| MHT2E007 |
Identify causes of drive axle(s) drive unit noise and overheating problems; determine needed action. |
| MHT2E008 |
Inspect and test drive axle temperature gauge, wiring harnesses, and sending unit/sensor; determine needed action. |
| MHT2E009 |
Remove and replace differential carrier assembly. |
| MHT2E010 |
Identify causes of drive axle wheel bearing noise and check for damage; determine needed action. |
| MHT2E011 |
Inspect and/or replace components of differential case assembly including spider gears, cross shaft, side gears, thrust washers, case halves, and bearings. |
| MHT2E012 |
Inspect and replace components of locking differential case assembly. |
| MHT2E013 |
Inspect differential carrier housing and caps, side bearing bores, and pilot (spigot, pocket) bearing bore; determine needed action. |
| MHT2E014 |
Inspect and replace ring and drive pinion gears, spacers, sleeves, bearing cages, and bearings. |
| MHT2E015 |
Measure ring gear runout; determine needed action. |
| MHT2E016 |
Measure and adjust drive pinion bearing preload. |
| MHT2E017 |
Measure and adjust drive pinion depth. |
| MHT2E018 |
Measure and adjust side bearing preload and ring gear backlash. |
| MHT2E019 |
Check and interpret ring gear and pinion tooth contact pattern; determine needed action. |
| MHT2E020 |
Inspect, adjust, or replace ring gear thrust block/screw. |