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 153 of 712

OPERATOR MAINTENANCE

BOOM OPERATION ABNORMAL WHEN TELESCOPING IN OR OUT

INITIAL SETUP:

Equipment Condition

Vehicle setup for crane operations.

(Volume 1, WP 0106)

TROUBLESHOOTING PROCEDURE

BOOM OPERATION ABNORMAL WHEN TELESCOPING IN OR OUT

TEST 1 - Is POWER ON/OFF switch set to ON position?

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.

Ensure POWER ON/OFF switch is set to ON position.If switch found in OFF position,

turn switch to ON. (Volume 1, WP 0106)

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