Danfoss PVG 32 Service Manual

PVPC plug for external pilot control
Description: Pilot oil supply from another pump.
Location: On the end of the PVP.
Function: Provides a hydraulic pilot supply to the valve stack.
Failure mode Cause Corrective action
Main spool moves slow, or not at
all, in all sections
External hydraulic pilot pressure is too low Check external hydraulic pressure from pilot pump and/or
restrictions
PVPC plug for external pilot
P107 734E
PVPC with check valve
Tee into pressure port
to measure pressure
PVMR Friction Module
Description: Mechanical friction hold.
Location: Mounted on main spool in the PVB.
Function: Infinite mechanical positioning of the main spool.
Failure mode Cause Corrective action
Flow changes Excessive flow across the main spool Reduce flow (100 l/min or less)
Vibration Reduce vibration
Broken spring Replace broken springs
Flow changes or will not stay in
detent
Check for proper assembly of parts Install parts correctly per specification sheet
Service Manual
PVG 32 Proportional Valve Group
PVG 32 Component Troubleshooting
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©
Danfoss | February 2017 11039167 | AX00000031en-US0301

Danfoss PVG 32 Specifications

General

Brand	Danfoss
Model	PVG 32
Category	Control Unit
Language	English