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Page Title:
CRANE DOES NOT SWING CLOCKWISE (CW). |
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 TM 9-2320-364-34-1
2-15. MATERIAL HANDLING CRANE TROUBLESHOOTING (CONT).
9. CRANE DOES NOT SWING CLOCKWISE (CW).
INITIAL SETUP
References
Tools and Special Tools
TM 9-2320-364-10
Tool Kit, General Mechanic's
TM 9-2320-364-20
(Item 240, Appendix F)
Cap and Plug Set (Item 26, Appendix F)
Equipment Condition
Pan, Drain 4 gal (Item 144, Appendix F)
Engine OFF, (TM 9-2320-364-10)
Pressure Test Kit (Item 165, Appendix F)
Parking brake applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
Materials/Parts
Outriggers down with weight off
Oil, Hydraulic (Item 34, Appendix B)
vehicle suspension, (TM 9-2320-364-10)
Tags, Identification (Item 72, Appendix B)
Lockwasher (4) (Item 282, Appendix E)
Packings, Preformed (11) (Item 347, Appendix E)
Packings, Preformed (3) (Item 389, Appendix E)
START
1.
KNOWN INFO
TEST OPTIONS
Unit Troubleshooting
Operation test.
Does crane swing CW with
tasks completed.
hoses to swing motor
Crane swings CCW.
REASON FOR QUESTION
crossed and SWING control
lever in CCW position?
POSSIBLE PROBLEMS
If SWING valve on four valve
bank is faulty, fluid going to
Four valve bank faulty.
swing motor valve will be
Swing motor valve.
restricted.
Go to Step 2 of this
NO
Fault.
YES
Repair four valve
bank (Para 16-26).
Verify repair, go to
Step 4 of this Fault.
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