Pump setup
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 for front pump, MC and
MD for rear pump).
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
H1 45/53/60/68 Tandem Closed Circuit Axial Piston Pumps
Adjustments
©
Danfoss | June 2018 520L0928 | AX00000103en-US0303 | 43
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