Published 08-25-09, Control # 077-04 8-33
RT9130E SERVICE MANUAL UNDERCARRIAGE
Outrigger Control Valves
Description
There are four valve assemblies responsible for controlling
the outrigger system, the integrated outrigger/rear steer
valve, the front and rear outrigger control manifolds, and the
pilot operated check valves.
NOTE: For a more detailed DESCRIPTION and
MAINTENANCE of the valves, refer to VALVES in
Section 2 - HYDRAULIC SYSTEM.
Pilot Operated Check Valve
The pilot operated check valves are located in the outrigger
stabilizer port blocks. The check valve provides two
functions; the first function is a holding valve, the second
function provides a thermal relief of the stabilizer.
Integrated Outrigger/Rear Steer Valve
The integrated outrigger/rear steer valve is mounted on the
rear face of the carrier frame front cross member. The
outrigger portion of the valve consists of a 4-way two position
solenoid valve. The inlet section contains the main relief
valve.
Outrigger Control Manifold
The front and rear outrigger control manifolds are located
on the respective outrigger boxes. Each manifold consists of
four 12 volt solenoid valves and an assembly mounting kit.
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