Pressure Compensator Override (Pcor) Setting; Pcor Adjustment - Danfoss 51 Series Service Manual

Service Manual
Adjustments

Pressure compensator Override (PCOR) setting

Series 51 Electrohydraulic Proportional Controls Service Manual
Locknut and Threshold
Locknut
10 mm
9 Nm [6.6 lbf•ft]

PCOR Adjustment

In order to measure and adjust the start pressure setting for the PCOR function:
1. Install a 600 bar [10000 psi] gauge at port M1 or M2 or M5 to read high system pressure.
2. Install a 600 bar [10000 psi] gauge at port M3 to read minimum servo pressure.
3. Lock the motor shaft from moving by:
•
Applying the park brake, apply an extreme load, or
•
Position the machine against an immovable object, or
•
Other means to hold the machine.
4. Start the prime mover. Operate at medium RPM.
5. Stroke the pump very slowly to gradually increase the system pressure.
11009448 • Rev BA • July 2014
Spring seat
P101 911
13