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TM 10-3930-643-34
HYDRAULIC SYSTEM TROUBLESHOOTING AND MAINTENANCE. (cont)
12-3.
Loader Control Valve. (Sheet 14 of 14)
TESTING/ADJUSTING - TILT BACK CIRCUIT RELIEF VALVE (cont)
93.
94.
95.
96.
97.
98.
99.
100.
Using a 11/16” socket and socket
wrench handle, install and tighten
acorn nut (61) to 10 lb-ft.
Vent pressure tester hand pump,
pressure on tilt cylinder,
left
side.
Using a 10” adjustable wrench,
disconnect pressure tester hand pump
from sandwich test block.
Using a 9/16” socket and socket
wrench handle, remove
four bolts
(54) and two flange halves (55).
Disconnect hose assembly (56) from
sandwich test block.
Inspect new preformed packing (57),
replace with new, if damaged during
test.
Remove sandwich
test block and
preformed packing (57). Keep second
preformed packing (57) with sandwich
test block for future testing.
Install new preformed packing (57),
hose assembly
(56),
two flange
halves (55) and four bolts (54) to
tube assembly (58).
NOTE
Return M10A Forklift to original
equipment condition.
END OF TASK
12-26
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