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TM 9-2320-364-20-3
2-2340
8. LHS DOES NOT OPERATE.
INITIAL SETUP
1.
Are LHS hydraulic hoses 2777
and 2917 free of damage,
crimps or leaks and are fittings
free of leaks?
Tighten loose fittings
or replace hose
(Para 20-3 and
schematic Fig 2-54).
Verify repair, go to
Step 12 of this Fault.
START
NO
SRW operates.
Crane operates.
LHS light operates.
LHS hoses leaking or damaged.
Hydraulic selector switch faulty.
LHS control assembly faulty.
Wire 1462 faulty.
Wire 1435 from free flow
solenoid valve faulty.
LHS control assembly faulty.
Wire 1734 faulty.
Wire 1435 from LHS supply
solenoid valve faulty.
LHS supply solenoid valve
faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
If hose 2777 is leaking or
damaged, adequate supply
pressure will not be supplied to
LHS from multifunction manifold.
If hose 2917 is damaged, return
flow to hydraulic reservoir may
be restricted.
2-28. LOAD HANDLING SYSTEM (LHS) TROUBLESHOOTING (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)
YES
Personnel Required
Two
Read WARNING
on Page 2-2341
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