Pvpx Ls Unloading Valve - Danfoss PVG 32 Service Manual

Service Manual
PVG 32 Proportional Valve Group
PVG 32 Component Troubleshooting

PVPX LS unloading valve

Failure mode
Manual override leaking externally Not torqued correctly
Solenoid will not shift
© Danfoss | February 2017
If replacing seal kit,
replace tie rods also
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8
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248
Refer to PVPX Electrical LS unloading valve
Description: Optional two way two position solenoid.
Location: In the PVP.
Function: A safety device that dumps load sense to tank to prevent the pump from building pressure.
Cause
High usage
Manual override is bent
Coil not working
Too high or too low of voltage
for valve operation.
Corrective action
Check and retorque to 45 Nm [400 lbf•in]
Replace per valve specification
Replace per valve specification
Replace coil per valve specification
Check with OHM meter:
12 volt system - 8.7 OHMs
24 volt system - 33 OHMs
Confirm voltage in system from remote controller:
12 volt system should not exceed 13.2 volts
24 volt system should not exceed 26.4 volts
11039167 | AX00000031en-US0301 | 37
P107 817E