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Page Title:
CRANE DOES NOT SWING OR SWINGS SLOWLY. (Cont) |
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 TM 9-2320-364-34-1
8. CRANE DOES NOT SWING OR SWINGS SLOWLY (CONT).
4.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Operation test.
Unit Troubleshooting
on Page 2-521
tasks completed.
Outriggers operate.
REASON FOR QUESTION
Telescope operates.
Does swing motor operate
Four valve bank OK.
If swing motor operates, brake or
check valve controlling brake is
when removed from swing
suspect. If swing motor does not
POSSIBLE PROBLEMS
drive gear reducer?
operate, swing motor and swing
motor valve is suspect.
Swing motor valve
faulty.
Swing motor faulty.
Swing brake faulty.
Go to Step 5 of this
NO
Fault.
YES
Go to Step 6 of this
Fault.
2-520
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