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 209 of 712

OPERATOR MAINTENANCE

SWING OPERATION ABNORMAL IN BOTH DIRECTIONS

INITIAL SETUP:

Equipment Condition

Vehicle setup for crane operations.

(Volume 1, WP 0106)

TROUBLESHOOTING PROCEDURE

SWING OPERATION ABNORMAL IN BOTH DIRECTIONS

TEST 1 - Are control levers returned to neutral properly?

NOTE

Common problems that crane operators may see are:

1. Slow or abnormal operation.

2. Crane will not pick up load.

Common causes of problems are:

1. Cold hydraulic oil (slow operation).

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

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

4. Load too heavy (will not pick up load).

5. Air in cylinder or hoist motor (abnormal operation).

Report all problems to field level maintenance.

1.

Verify that abnormal operation is not due to sharp movement of controls to NEUTRAL

position.

TM 9-2320-431-10-2

0166

0166-1