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 219 of 712

OPERATOR MAINTENANCE

CONTROLS STICKING IN ENGAGED POSITION

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

CONTROLS STICKING IN ENGAGED POSITION

TEST 1 - Is hydraulic fluid at normal operating temperature?

WARNING

Reservoir may be very hot. Use care when placing hand near reservoir.

Reservoir can become hot enough to cause serious burns. Be careful not

to touch the reservoir with bare hands or allow body to contact reservoir.

Use gloves and insulated pads as necessary. Failure to comply may

result in injury or death to personnel.

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 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 organizational maintenance.

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