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 TM 9-2320-364-34-1
2-13. HYDRAULIC SYSTEM TROUBLESHOOTING (CONT).
4. FAN DOES NOT OPERATE.
INITIAL SETUP
Tools and Special Tools
Personnel Required
Tool Kit, General Mechanic's
Two
(Item 240, Appendix F)
Pan, Drain 4 gal (Item 144, Appendix F)
References
Pressure Test Kit (Item 165, Appendix F)
TM 9-2320-364-10
TM 9-2320-364-20
Materials/Parts
Equipment Condition
Oil, Hydraulic (Item 34, Appendix B)
Engine OFF, (TM 9-2320-364-10)
Lockwashers (4) (Item 266, Appendix E)
Parking brake applied, (TM 9-2320-364-10)
Lockwashers (8) (Item 282, Appendix E)
Wheels chocked, (TM 9-2320-364-10)
Parts Kit, Seal (Item 412, Appendix E)
START
1.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Visual inspection.
Unit Troubleshooting
on Page 2-207
Audible inspection.
tasks completed.
Winch and crane operation OK.
REASON FOR QUESTION
POSSIBLE PROBLEMS
Does the shuttle valve ball
If shuttle valve ball sticks or does
move freely in the valve
not move freely, the pump
Shuttle valve B faulty.
body?
control will not receive load
Orifice faulty.
sensing pressure.
Fan motor faulty.
Replace shuttle valve
(Para 17-18).
NO
Verify repair, go to
Step 4 of this Fault.
YES
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