| |
TM 10-3930-669-20
2-18. HYDRAULIC SYSTEM TROUBLESHOOTING (CONT).
3. PIVOT CYLINDER DOES NOT OPERATE OR OPERATES SLOWLY.
INITIAL SETUP
Tools and Special Tools
References
Tool Kit, General Mechanic's: Automotive
TM 10-3930-669-10
(Item 1, Appendix B)
Pressure Test Kit (Item 2, Appendix B)
STE/ICE-R (Optional) (Item 14, Appendix B)
Equipment Condition
Engine OFF (TM 10-3930-669-10)
Personnel Required
MAIN POWER switch OFF (TM 10-3930-669-10)
Two
Parking brake applied (TM 10-3930-669-10)
Wheels chocked (TM 10-3930-669-10)
Materials/Parts
Cap and plug Set (Item 5, Appendix C)
Tags, Identification (Item 21, Appendix C)
KNOWN INFO
Lift, shift, and tilt cylinders
operate.
POSSIBLE PROBLEMS
Pivot cylinder pins damaged or
missing.
Hydraulic
hoses
to
pivot
cylinder
loose or damaged.
Pivot control cable damaged or
unadjusted.
Stack valve faulty.
Pivot cylinder faulty.
Pivot shaft bearings faulty.
TEST OPTIONS
Visual inspection.
REASON FOR QUESTION
If pivot cylinder pin(s) is
damaged
or
missing,
the
mast
will not pivot.
2-436
|
