Pump Setup
The figure below shows the locations of system and gauge ports you use when adjusting the servo
neutral postion.
System Pressure Gauge Ports
System
Port B
Servo pressure
port M4
System Port A
Servo pressure
port M4
Servo pressure
port M5
Solenoid C1
Solenoid C2
Gauge port MB
system pressure
Gauge port MA
system pressure
P106 489E
For more information see
on page 28.
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.
Service Manual
H1P 045/053/060/068 Axial Piston Single Pumps
Adjustments
44 |
©
Danfoss | June 2020
AX152886481964en-000405