MATERIAL HANDLING CRANE TROUBLESHOOTING.

TM 9-2320-364-34-1

2-15. MATERIAL HANDLING CRANE TROUBLESHOOTING.

This paragraph covers Material Handling Crane System Troubleshooting. The Material Handling Crane System Fault

Index, Table 2-15, lists faults for the crane system of the PLS truck. Refer to the schematics Figures 2-7 through 2-14

when performing tests and corrective actions.

Table 2-15. Material Handling Crane System Fault Index

Fault No.

Description

Page

Outriggers Do Not Operate Or Operate Slowly

2-428

............................................................

LH Outrigger Does Not Operate

2-446

...............................................................................

RH Outrigger Does Not Operate

2-460

...............................................................................

Four Valve Bank Functions (Swing, Lift, Telescope And Hoist)

Do Not Operate Or Operate Slowly

2-474

...........................................................................

Mast Does Not Operate Or Operates Slowly

2-482

...............................................................

Mast Does Not Raise

2-502

..............................................................................................

Mast Does Not Lower

2-508

.............................................................................................

Crane Does Not Swing Or Swings Slowly

2-514

..................................................................

Crane Does Not Swing Clockwise (CW)

2-532

....................................................................

10.

Crane Does Not Swing Counter Clockwise (CCW)

2-540

......................................................

11.

Boom Does Not Telescope In Or Telescopes In Slowly

2-548

.................................................

12.

Boom Does Not Telescope Out Or Telescopes Out Slowly

2-562

............................................

13.

Boom Does Not Telescope Or Telescopes Slowly

2-576

........................................................

14.

Boom Does Not Raise Or Raises Slowly

2-590

....................................................................

15.

Boom Does Not Lower Or Lowers Slowly

2-604

..................................................................

16.

Boom Does Not Operate Or Operates Slowly

2-614

..............................................................

17.

Boom Creeps Down

2-628

................................................................................................

18.

Hoist Does Not Operate Or Operates Slowly

2-640

...............................................................

19.

Hoist Does Not Lower

2-650

............................................................................................

20.

Hoist Does Not Raise

2-660

..............................................................................................

21.

Crane Fails Load Test

2-674

.............................................................................................

22.

Overload Shutdown System (OSS) Disables Crane Functions,

Boom Up, Boom Down, Telescoped Out And Hoist Up

2-708

................................................

2-418