Assembly. - TM-10-3930-622-140102

b. Disassembly.

f. Installation. Reverse the procedure in a. above.

(1) Remove large hex head plug, valve piston

6-33.

HYDRAULIC LINES AND FITTINGS.

and spring.

Maintenance of the hydraulic lines and fittings is limited

to removal of defective parts and replacement with new

(2) Remove smaller hex head, shims, spring and

hydraulic lines and fittings. Visually inspect hydraulic

valve. Note arrangement of parts for ease of assembly.

lines and fittings during operation for signs of hydraulic

fluid leakage or restrictions signified by operational

c. Cleaning, inspection, and repair. Clean all parts

malfunction.

Tag hydraulic lines as they are

in SD. Inspect piston and bore of valve body for wear or

disconnected to facilitate installation and cap hoses or

burs. Inspect valve for damage that might cause

plug parts, as required, to exclude dirt or other

leakage. Repair slightly dam aged threads with a tap.

d. Assembly.

6-34. TILT CYLINDERS.

(1) Install valve in spring, shims and smaller plug

a. Removal.

in top part of body.

(1) Remove truck floor plate.

(2) Install spring, piston and largest plug in

horizontal part of body.

(2) Tag and disconnect hoses (figure 6-17) from

tilt cylinders. Cap hoses and plug ports in cylinders to

e. Test after assembly. With lift and steering ports

exclude dirt.

temporarily plugged, apply increasing hydraulic pressure

to the inlet port. The relief valve should crack open at

(3) Support mast so it will not suddenly tilt on

650 to 750 psi, and be held fully open at 1000 to 1100

removal of tilt cylinders.

psi. Adjust setting, if necessary, by adding or removing

shims.

Figure 6-17. Tilt Cylinder Removal

WARNING