Service Manual User Manual

Section 9
9-66
9.9.2 Main Control Valve
The main control valve assembly (2, Fig. 9– 51) is located
at the rear of the vehicle, beneath the rear cover, secured
to the valve plate assembly. The main control valve
assembly consists of various working sections with their
own valve assemblies, each with a particular purpose in
providing vehicle functions.
If service to the main control valve assembly is required,
label, disconnect and cap the hoses leading to the main
control valve assembly and remove the assembly from
the vehicle. Secure the control valve assembly to a work
bench, vise, or stabilize by other suitable means.
Always replace O-rings with new O-rings lubricated with
clean hydraulic oil.
a. Main Control Valve Replacement
The main control valve assembly (2, Fig. 9– 51), pilot
select manifold (1), plus the auxiliary hydraulics control
valve and mounting bracket (Fig. 9– 52), IF EQUIPPED,
are fastened to the main valve bracket (5, Fig. 9– 51).
These instructions cover the removal of the main control
valve plate assembly and bracket in its entirety with the
main control valve, pilot select manifold and auxiliary
hydraulics control valve and mounting bracket, IF
EQUIPPED, in place on the bracket.
Model 3606 • Origin 10/99