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Page Title:
LEFT AND/OR RIGHT HOIST CYLINDERS DO NOT EXTEND OR RETRACT - continued |
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 TM 10-3930-673-20-1
5. LEFT AND/OR RIGHT HOIST CYLINDERS DO NOT EXTEND OR RETRACT (CONT).
KNOWN INFO
TEST OPTIONS
7
Hydraulic oil OK.
Visual inspection.
Are hoist cylinders and their
Hoist cylinder hydraulic hoses OK.
STE/ICE-R #51.
Hoist cylinder hose connections/
housings free from signs of
REASON FOR QUESTION
tubes OK.
damage?
If hoist cylinders or housings are
Main control valve OK.
damaged, hoist cylinders will not
operate.
Hydraulic joystick control valve OK.
POSSIBLE PROBLEMS
Left and/or right hoist cylinders
faulty.
Replace damaged
cylinder and
NO
housing
(Para 18-29).
YES
Go to Electrical Troubleshooting Section to
continue.
Change 1
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