TM-9-2320-279-10-2

M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

OPERATOR’S MANUAL VOLUME 2 OF 2

DECEMBER 1998

CHANGE 3

TM-9-2320-279-10-2 - Page 777 of 819

3-13.

3-13.

TM 9-2320-279-10-2

Troubleshooting Malfunctions (Cont)

Table

3-4.

Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective

Action

RETRIEVAL SYSTEM (M984E1)

NOTE

ŽCommon problems in the retrieval system that may be

found are:

1. Slow or abnormal operation.

2. Will not lift disabled vehicle.

3. Will not hold disabled vehicle in raised position.

•Common causes of the problem are:

1. Cold hydraulic oil (slow operation).

2. Low engine speed (slow or abnormal operation).

3. Operating two retrieval functions at same time (slow

operation).

4. Low hydraulic oil.

●

Report all problems to organizational maintenance.

1. CONTROLS STICKING IN ENGAGED POSITION.

WARNING

Reservoir may become very hot. Be careful when placing

hand near reservoir. Reservoir can become hot enough to

cause serious burns.

Step 1. Check for overheated hydraulic oil by carefully placing hand near

hydraulic reservoir.

If reservoir is very hot, shut off engine. Let oil cool, then

continue operation.

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