TM-9-2350-256-20-1
RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 1 OF 2
NOVEMBER 2005
TM-9-2350-256-20-1 - Page 116 of 948
TM 9-2350-256-20-1
0021 00
Malfunction/Symptom
Troubleshooting Procedure
Engine
1.
Engine fails to crank when start switch is pressed.
...........................................................................................
WP 0022 00
2.
Engine cranks at normal speed but will not start after two attempts to start.
.....................................................
WP 0022 00
3.
Engine cranks at normal speed but will not start during extreme cold weather.
................................................
WP 0022 00
4.
Engine cranks slowly and will not start.
...........................................................................................................
WP 0022 00
Fuel, Air Intake, and Exhaust Systems
5.
Engine starts running but fails to stay running.
................................................................................................
WP 0023 00
6.
Engine fails to shut off when the engine fuel shutoff switch is activated.
.........................................................
WP 0023 00
7.
Engine fails to stop when fuel shutoff handle is pulled.
....................................................................................
WP 0023 00
8.
Engine stalls at low rpm, does not develop full power, and has excessive smoke from
one or both banks of cylinders.
.........................................................................................................................
WP 0023 00
9.
Engine stalls at low rpm and does not develop full power, but exhaust smoke is normal.
..................................
WP 0023 00
10. Engine runs rough or misfires, knocks, and/or fuel consumption is excessive.
................................................
WP 0023 00
Oil Cooling System
11. Low engine oil pressure, engine oil temperature normal.
.................................................................................
WP 0024 00
12. High engine oil pressure, engine oil temperature normal.
................................................................................
WP 0024 00
13. Engine oil consumption excessive.
..................................................................................................................
WP 0024 00
14. High engine oil temperature.
............................................................................................................................
WP 0024 00
Ventilation Blower Assembly
15. Blower motor does not run.
..............................................................................................................................
WP 0025 00
16. Blower runs but does not come up to speed.
.....................................................................................................
WP 0025 00
17. Blower unusually noisy.
...................................................................................................................................
WP 0025 00
Transmission Center Section and Output Reduction Gears
18. High transmission oil temperature.
..................................................................................................................
WP 0026 00
19. Vehicle will steer or pivot but will not drive in any range.
................................................................................
WP 0026 00
20. Vehicle will not drive in low range.
..................................................................................................................
WP 0026 00
21. Vehicle will not drive in intermediate range.
....................................................................................................
WP 0026 00
22. Vehicle will not drive in high range.
.................................................................................................................
WP 0026 00
23. Vehicle will drive but creeps in neutral.
............................................................................................................
WP 0026 00
24. Transmission cannot be down-shifted.
.............................................................................................................
WP 0026 00
Driver’s Controls
25. Vehicle will not steer in either direction.
..........................................................................................................
WP 0027 00
26. Vehicle will steer in only one direction.
............................................................................................................
WP 0027 00
27. Depressing brake pedal will not stop vehicle effectively.
.................................................................................
WP 0027 00
28. Brakes dragging at one or both sides of vehicle.
...............................................................................................
WP 0027 00
29. Engine does not respond properly to throttle controls.
.....................................................................................
WP 0027 00
30. No back pressure, or insufficient pressure, when operating purge pump.
.........................................................
WP 0027 00
31. Excessive back pressure when operating purge pump.
.....................................................................................
WP 0027 00
Tracks and Suspension
32. Vehicle pulls to one side.
..................................................................................................................................
WP 0028 00
33. Vehicle throws track.
........................................................................................................................................
WP 0028 00
34. Vehicle sags to one side.
...................................................................................................................................
WP 0028 00
35. Vehicle rides excessively hard.
.........................................................................................................................
WP 0028 00
36. Thumping noises heard during vehicle operation.
............................................................................................
WP 0028 00
0021 00-2
Back to Top
