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TM 10-3930-669-20
2-18. HYDRAULIC SYSTEM TROUBLESHOOTING (CONT).
8. LOAD CANNOT BE LIFTED TO MAXIMUM HEIGHT.
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
Transmission operates.
Visual inspection,
POSSIBLE PROBLEMS
REASON FOR QUESTION
Hydraulic fluid level low.
Hydraulic reservoir to pump main
hydraulic
hose
leaking
or
damaged.
Hydraulic pump faulty.
Priority valve faulty.
Stack valve faulty.
Mast adjustment faulty.
If hydraulic fluid level is low,
hydraulic lift cylinders will not lift
load to maximum height.
¬
2-468
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