Danfoss PVG 32 Service Manual

Closed center plug
P107 737E
Closed
center
plug
Plug
O-ring
Seal
Orifice
6 mm
35 Nm [308 lbf•in]
4 mm
8 Nm
[70 lbf•in]
2.5 mm
4 Nm
[35 lbf•in]
Pressure adjustment spool
Description: Main pump flow unloading spool.
Location: PVP (inlet) module.
Function: For open center systems it is the main relief and unloading spool
For closed center systems it is the main relief spool.
Failure mode Cause Corrective action
In open center systems the valve
sections are unstable
High wear allows leakage to tank Replace compete module
The adjusted pressure will not
remain static in a closed center
system
Low viscosity oil allowing high leakage
around spool to tank.
Remove and clean orifice. Reinstall
High wear Replace compete module
Serviceability: Spool is not serviceable. Replace complete module.
Pressure adjustment spool
P107739E
Pressure adjustment spool
Orifice
Plug
Service Manual
PVG 32 Proportional Valve Group
PVG 32 Component Troubleshooting
24 |
©
Danfoss | February 2017 11039167 | AX00000031en-US0301

Danfoss PVG 32 Specifications

General

Category	Control Unit
Maximum working pressure	350 bar
Size	32
Type	Proportional Valve
Maximum operating pressure	420 bar
Porting pattern	ISO 4401
Electrical connection	AMP