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 TM 9-2320-364-34-1
2-14. LOAD HANDLING SYSTEM (LHS) TROUBLESOOTING (CONT).
8. MIDDLE FRAME DOES NOT OPERATE.
INITIAL SETUP
Materials/Parts
Tools and Special Tools
Oil, Hydraulic (Item 34, Appendix B)
Tool Kit, General Mechanic's
Parts Kit, Seal (Item 412, Appendix E)
(Item 240, Appendix F)
Parts Kit, Seal (Item 408, Appendix E)
Cap and Plug Set (Item 26, Appendix F)
References
Goggles, Industrial (Item 83, Appendix F)
TM 9-2320-364-10
Pressure Test Kit (Item 165, Appendix F)
Wrench Set, Socket 3/8 in. Drive
Personnel Required
(Item 273, Appendix F)
Two
(Item 276, Appendix F)
Equipment Condition
Wooden Blocks (Appendix C)
Engine OFF, (TM 9-2320-364-10)
Lifting Device, Minimum capacity 2500 lb
Parking brake applied, (TM 9-2320-364-10)
(1134kg)
Wheels chocked, (TM 9-2320-364-10)
START
1.
KNOWN INFO
TEST OPTIONS
Unit Troubleshooting tasks
Pressure test.
Are 3600 to 3625 psi (24,822 to
completed.
24,994 kPa) measured at main
Hook arm operates.
REASON FOR QUESTION
manifold, port TPMB with LHS
in transit position, hoses 2888,
If transit directional control valve
POSSIBLE PROBLEMS
2887, 2588, 2666, 2889 and
is faulty, fluid will return to tank
2890 capped and joystick held
through faulty transit valve and
Transit directional control
in LOAD position?
system pressure will be relieved
valve faulty.
before reaching operating
Velocity fuse faulty.
pressure.
RH Main cylinder faulty.
LH Main cylinder faulty.
Replace transit
directional control
NO
valve (Para 17-11).
Verify repair, go to
Step 5 of this Fault.
YES
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