669224-R5
ERVICE
S
35
5.6 Check Valves
5.6-1 Check Valve Removal –
Top Mount Valves
Remove the attachment from the truck as described in
Section 5.1.
1 Disconnected the four hydraulic tubes or hoses at the
bottom of the check valve.
2 Remove the four capscrews fastening the valve guard
to the frame. For reassembly, tighten the capscrews to
a torque of 40–50 ft.-lbs. (55-68 Nm).
3 Remove the hydraulic hoses from the check valve. Tag
the hoses to ease reassembly. Plug the hose lines.
4 Remove the three capscrews fastening the valve
mounting plate to the frame. For reassembly, tighten the
capscrews to 10–15 ft.-lbs. (14–20 Nm).
5 Remove the two screws fastening the check valve to the
mounting plate.
6 For reassembly, reverse the above procedures.
5.6-2 Check Valve Removal –
Center Mount Valves
Remove the attachment from the truck as described in
Section 5.1.
1 Disconnect the attachment hoses from the check valve
fittings. Plug the hoses. Tag the hoses for reassembly.
2 Loosen the hose clamp that fasten the check valve
mounting bracket to the cylinder. Remove the check
valve and mounting bracket.
3 Remove the check valve from the mounting bracket.
For reassembly, tighten the capscrews to a torque of
8–10 ft.-lbs. (10–13 Nm).
4 For reassembly, reverse the above procedures.
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