Shock And Anti-Cavitation Valve Pvlp - Danfoss PVG 32 Service Manual

Service Manual
PVG 32 Proportional Valve Group
PVG 32 Component Troubleshooting

Shock and anti-cavitation valve PVLP

Failure mode
Will not build pressure in A or B
port
© Danfoss | February 2017
5. Install plug with a 11 mm or 12 mm open end wrench. Torque to 8 Nm [70 lbf•in].
6. Install centering spring and tension rod using a 13 mm open end wrench and torque to 8 Nm [70
lbf•in].
7. Carefully reinstall the main valve spool into the valve housing. Do not force the main spool back into
the housing as you will damage the sealing lands in the valve housing. The spool should move freely
in the main spool bore when fully installed.
8. Install a manual actuator. Reassemble in reverse order and torque the 4 mounting screws to 8 Nm [70
lbf•in]
If section does not build pressure in one direction, wrong spool may have been installed in valve.
Main spool
Clean holes
Description: Optional work ports non adjustable pressure relief valve.
Location: PVB (valve section) Module.
Function: Removes any transient pressure spikes generated by the load.
The shock valves PVLP with fixed setting and the anti-cavitation valves PVLA on ports A and B are used for
the protection of the individual work function against overload and/or cavitation.
There is one shock valve for each work port.
Cause
Valve may be damaged and not able to seal
Serviceability: This valve may be disassembled and cleaned, however, internal parts are not available
separately. If you suspect valve malfunction, replace with a new valve and test system operation.
Screw
11 mm
8 Nm
[70 lbf•in]
P107 805E
Corrective action
Replace with correct part number per valve specification
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