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TM 9-2320-364-20-3
2-2382
10. HOOK ARM DOES NOT LOAD IN MANUAL MODE.
INITIAL SETUP
1.
Are LHS hydraulic hoses 2881,
2882, 2891 and 2892 free of
damage crimps or leaks and
are fittings free of leaks?
Tighten loose fitting
or replace hose
(Para 20-3 and
schematic Fig 2-54).
Verify repair, go to
Step 10 of this Fault.
START
Nothing.
LHS hoses leaking or damaged.
LHS tubes leaking or damaged.
Wire 1490 faulty.
Wire 1486 faulty.
Hydraulic selector switch
faulty.
LHS control assembly faulty.
Wire 1467 faulty.
Wire 1435 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
Leaking or damaged hose or
fittings may not deliver adequate
supply pressure to hook arm
cylinders.
2-28. LOAD HANDLING SYSTEM (LHS) TROUBLESHOOTING PROCEDURES (CONT).
Tools and Special Tools
Tool Kit, General Mechanic’s: Automotive
(Item 74, Appendix G)
STE/ICE-R (optional) (Item 3, Appendix G)
Multimeter (Item 44, Appendix G)
Jumperwire
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
References
TM 9-2320-364-10
TM 9-4910-571-12&P
WARNING
Materials/Parts
Lockwasher (4) (Item 180, Appendix F)
Adhesive (Item 8, Appendix C)
NO
YES
Read WARNING
on Page 2-2383
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