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TM 9-2320-364-20-3
2-2750
12. BOOM DOES NOT OPERATE.
INITIAL SETUP
1.
Tighten loose fitting or
replace hose
(Para 20-3 and
schematic Fig 2-61).
Verify repair, go to
Step 2 of this Fault.
START
YES
NO
Crane unloaded.
Faulty hose.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
Leaking or damaged hoses may
not deliver adequate supply
pressure to BOOM cylinders.
2-29. CRANE TROUBLESHOOTING (CONT).
Tools and Special Tools
Tool Kit, General Mechanics: Automotive
(Item 74, Appendix G)
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
Outriggers down with weight off truck suspension,
(TM 9-2320-364-10)
References
TM 9-2320-364-10
Are two hoses between
BOOM control and cylinders
and three hoses between
cylinders free of damage,
crimps or leaks?
WARNING
Read WARNING
on Page 2-2751
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