TM-9-2350-256-34
RECOVERY VEHICLE, FULL TRACKED: MEDIUM, M88A1
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL
JULY 2005
TM-9-2350-256-34 - Page 70 of 584
TM 9-2350-256-34
0004 00
Malfunction/Symptom
Troubleshooting Procedure
MECHANICAL TRANSMISSION AND MAIN HYDRAULIC PUMP CIRCUIT (MAIN HYDRAULIC SYSTEM)
25.
Mechanical transmission fails to operate.
........................................................................................................
WP 0010 00
26.
Main hydraulic pump fails to engage.
..............................................................................................................
WP 0010 00
27.
Mechanical transmission overheating.
.............................................................................................................
WP 0010 00
28.
Mechanical transmission slipping or chattering.
..............................................................................................
WP 0010 00
29.
Mechanical transmission fails to disengage main hydraulic pump.
..................................................................
WP 0010 00
30.
Main hydraulic pump noisy.
.............................................................................................................................
WP 0010 00
SPADE CIRCUIT (MAIN HYDRAULIC SYSTEM)
31.
Spade will not operate.
.....................................................................................................................................
WP 0011 00
32.
Spade will not hold with spade combination control valve lever in any position.
............................................
WP 0011 00
33.
Spade will operate only partially.
.....................................................................................................................
WP 0011 00
HOISTING BOOM CIRCUIT (MAIN HYDRAULIC SYSTEM)
34.
Boom will not operate.
.....................................................................................................................................
WP 0012 00
35.
Boom operates partially.
...................................................................................................................................
WP 0012 00
36.
Boom will not hold in any position.
.................................................................................................................
WP 0012 00
37.
Boom will not stop automatically after live boom operation.
...........................................................................
WP 0012 00
38.
Boom live operation does not function.
............................................................................................................
WP 0012 00
MAIN WINCH CIRCUIT (AUXILIARY HYDRAULIC SYSTEM)
39.
Main winch will not operate.
............................................................................................................................
WP 0013 00
HOIST WINCH CIRCUIT (AUXILIARY HYDRAULIC SYSTEM)
40.
Hoist winch will not operate.
............................................................................................................................
WP 0014 00
SPADE CIRCUIT (AUXILIARY HYDRAULIC SYSTEM)
41.
Spade will not operate.
.....................................................................................................................................
WP 0015 00
HOISTING BOOM CIRCUIT (AUXILIARY HYDRAULIC SYSTEM)
42.
Boom will not operate.
.....................................................................................................................................
WP 0016 00
HYDRAULIC IMPACT WRENCH (AUXILIARY HYDRAULIC SYSTEM)
43.
Impact wrench does not operate.
......................................................................................................................
WP 0017 00
AUXILIARY POWER UNIT (APU)
44.
Engine fails to crank.
........................................................................................................................................
WP 0018 00
45.
Engine cranks but fails to start.
.........................................................................................................................
WP 0018 00
46.
Engine hard to start.
.........................................................................................................................................
WP 0018 00
47.
Engine hard to start in cold weather.
.................................................................................................................
WP 0018 00
48.
Engine starts but fails to keep running.
.............................................................................................................
WP 0018 00
49.
Engine overheats.
.............................................................................................................................................
WP 0018 00
50.
Engine misfires, lacks power, or emits black smoke.
.......................................................................................
WP 0018 00
51.
Engine knocks.
.................................................................................................................................................
WP 0018 00
52.
Engine uses excessive oil and emits light blue smoky exhaust.
........................................................................
WP 0018 00
53.
High air temperature light on APU control box fails to operate properly.
........................................................
WP 0018 00
54.
Low oil pressure light in APU control box fails to operate properly.
................................................................
WP 0018 00
55.
Oil pressure gage fails to operate.
.....................................................................................................................
WP 0018 00
56.
Battery-generator indicator reads in yellow or lower red region with APU engine
running and APU generator switch on.
.............................................................................................................
WP 0018 00
0004 00-2
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