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TM 9-2320-364-20-3
2-2766
16. MAST DOES NOT OPERATE.
INITIAL SETUP
1.
Tighten loose fitting
or replace hose or
tube (Para 20-3 and
schematic Fig 2-63)
or notify DS
Maintenance.
Verify repair, go to
Step 2 of this Fault.
START
NO
Crane unloaded.
Faulty hose or tube.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
Leaking or damaged hose or
tubes may not deliver adequate
supply pressure to mast
cylinder.
2-29. CRANE TROUBLESHOOTING (CONT).
Tools and Special Tools
Tool Kit, General Mechanic’s: 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 hoses and tube between
MAST valve and cylinder free
of damage, crimps or leaks?
WARNING
Fault not corrected.
Notify DS
Maintenance.
YES
Read WARNING
on Page 2-2767
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