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 TM 10-3930-632-12
WARNING
c. Installation.
Install the tilt-lock valve as
shown in figure 4-6.
Dry cleaning solvent, P-D-680, used to
clean parts is potentially dangerous to
4-25. Tilt Cylinder
personnel and property. Avoid repeated
a. Removal.
and prolonged skin contact. Do not use
near open flame or excessive heat. Flash
(1) Lower the carriage to the floor. Secure
point of solvent is 100F. -138F. (38C. --
the mast to the overhead guard to prevent the mast
60C.).
from tipping when hydraulic pressure is relieved.
b. Cleaning and Inspection.
(2) Remove the floor plate.
(1) Clean the tilt-lock valve with a cloth
(3)
Place a drain pan under the tilt
dampened with dry cleaning solvent P-D-680.
cylinder. Disconnect the two hydraulic hoses from the
(2) Inspect the valve body for cracks,
tilt cylinder and allow the cylinder and hoses to drain.
signs of leaking, and other damage.
(4) Remove the tilt cylinder as shown in
(3) Inspect the inlet and outlet ports for
obstructions and for damaged threads.
(4) Replace a defective valve.
Figure 4-7. Tilt Cylinder, Removal and Installation
b. Disassembly.
(1) Disassemble the tilt cylinder as shown
in figure 4-8.
4-22
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