2-60 Published 08-25-09, Control # 077-04
HYDRAULIC SYSTEM RT9130E SERVICE MANUAL
RELIEF VALVE
Description
The in-line plumbed direct acting relief valve is installed at
the hydraulic hose reel motor. It is used to protect the motor
in case of a pressure surge.
The valve consists of a manifold and cartridge. When
pressure at the inlet port exceeds the bias spring force or
setting holding the valve closed, the valve will open, directing
pressurized oil to the reservoir.
Maintenance
Removal
1. Tag and disconnect hydraulic lines from the valve. Cap
or plug all openings and remove valve.
Installation
1. Connect the hydraulic lines as tagged during removal.
2. Check valve and hydraulic connections for leaks. Make
repairs as needed.
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