Pump Setup - Danfoss H1P 045 Service Manual

Axial piston single pumps
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Service Manual
H1P 045/053/060/068 Axial Piston Single Pumps
Adjustments

Pump Setup

44 |
©
Danfoss | June 2020
The figure below shows the locations of system and gauge ports you use when adjusting the servo
neutral postion.
System Pressure Gauge Ports
Servo pressure
port M4
System
Port B
Gauge port MA
System Port A
system pressure
For more information see
H1P Ports Information
1. Attach a 50 bar [1000 psi] gauge to each servo pressure port M4 and M5.
2. Attach a 600 bar [10 000 psi] gauge to each system pressure port (MA and MB).
3. Remove servo cylinder locking screws (E350) and plates (E300) from both sides of the pump.
4. Disconnect the control solenoids from the vehicle wiring harness.
5. If using a PWM signal to set mechanical neutral, connect the control solenoids C1 and C2 to the signal
source.
Ensure the source supplies no current to the solenoids until required in the following procedure.
Servo pressure
port M5
Gauge port MB
system pressure
Servo pressure
port M4
on page 28.
Solenoid C1
Solenoid C2
P106 489E
AX152886481964en-000405

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H1p 053H1p 060H1p 068

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