TM-9-2320-431-10-2

TRUCK, WRECKER, 8X8, M984A1

TECHNICAL MANUAL; OPERATOR'S MANUAL; PART 2 OF 2

JUNE 2009

TM-9-2320-431-10-2 - Page 229 of 712

OPERATOR MAINTENANCE

RETRIEVAL CYLINDERS RAISE OR LOWER SLOWLY

INITIAL SETUP:

Equipment Condition

Engine OFF. (Volume 1, WP 0057)

Equipment Condition - Continued

Parking brakes applied. (Volume 1,

WP 0056)

Wheels chocked. (Volume 1,

WP 0100)

TROUBLESHOOTING PROCEDURE

RETRIEVAL CYLINDERS RAISE OR LOWER SLOWLY

TEST 1 - Is hydraulic fluid at normal operating temperature?

NOTE

Common problems with 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 problems are:

1. Cold hydraulic fluid (slow operation).

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

3. Operating two retrieval functions at the same time (slow operation).

4. Low hydraulic fluid.

Report all problems to field level maintenance.

1.

Check hydraulic fluid temperature at reservoir.

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