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Page Title:
TABLE 6-2. TROUBLESHOOTING - continued |
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 TABLE 6-2. TROUBLESHOOTING (Cont'd)
STEP
PROCEDURE
CORRECTIVE ACTION
Hydraulic (Cont'd)
9. Speed of operation
b.
Defective direction
b. Overhaul direction con-
slows down after
control valve.
trol valve (paras. 6-181
usage. (Cont'd)
through 6-188).
10. Oil heats up rapidly.
a.
Defective direction
a. Overhaul direction con-
control valve.
trol valve (paras. 6-182
b.
Defective hydraulic
b. Overhaul hydraulic pump
pump.
11. Hoist cylinder
a.
Worn packings.
a. Overhaul hoist cylinder
packing leaks.
b.
Piston scored.
b. Overhaul hoist cylinder
12. Hoist or tilt
a.
Worn packing in hoist
a. Overhaul hoist cylinder
cylinder lowers or
cylinder or tilt
(paras. 6-195 through
tilts while truck
cylinder.
6-200), or tilt cyl-
is idle.
inder (paras. 6 189
through 6-194).
b.
Defective hydraulic
b. Overhaul hydraulic
direction control
direction control
valve.
valve (paras. 6-182
13. Mast will not tilt.
a.
Defective hydraulic
a. Overhaul hydraulic
pump.
pump (paras. 6-171
b.
Defective direction
b. Overhaul direction
control valve.
control valve (paras.
c.
Defective tilt
c. Overhaul tilt cylinder
cylinder.
Forward and Reverse Travel Noise
1. Axle noise while
a.
Defective gears or
a. Overhaul drive axle
under power or
bearings in drive
(paras 6-107 through
while coasting.
axle.
6-118).
b.
Brake shoe retainer
b. Overhaul brake system
defective.
6-13
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