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TM 10-3930-669-20
2-18. HYDRAULIC SYSTEM TROUBLESHOOTING (CONT).
10. HYDRAULIC MAST LIFT SPEED SLUGGISH.
INITIAL SETUP
Tools and Special Tools
Tool Kit, General Mechanic's: Automotive
(Item 1, Appendix B)
Pressure Test Kit (Item 2, Appendix B)
STE/ICE-R (Optional) (Item 14, Appendix B)
Personnel Required
Two
Materials/Parts
Cap and plug Set (Item 5, Appendix C)
Tags, Identification (Item 21, Appendix C)
References
TM 10-3930-669-10
Equipment Condition
Engine OFF (TM 10-3930-669-10)
MAIN POWER switch OFF (TM 10-3930-669-10)
Parking brake applied (TM 10-3930-669-10)
Wheels chocked (TM 10-3930-669-10)
KNOWN INFO
TEST OPTIONS
Nothing.
Visual inspection.
POSSIBLE PROBLEMS
REASON FOR QUESTION
Lift cylinder hoses leaking or
damaged.
Lift control cable damaged or
unadjusted.
Hydraulic pump faulty.
Stack valve faulty.
If lift cylinder(s) are faulty,
hydraulic mast lift speed will be
sluggish.
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2-482
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