Danfoss D1 Series Service Manual page 37

Service Manual
D1 High Power Open Circuit Pumps Size 65/130/145/193/260
Adjustments
© Danfoss | July 2019
4. Load the pump's outlet pressure to 50 bar and input 400mA to electric displacement control, then
loosen the electric displacement control lock nut and turn its adjusting screw until the pump
displacement achieves (see
outlet flow and pump speed. Clockwise turning adjusting screw decrease pump displacement,
counterclockwise turning increase pump displacement. The displacement - current curve will offset
(see Adjustments table) per turn.
5. While holding the position of the electric displacement control adjusting screw, torque the lock nut
to 9.5 N•m [84 lbf•in].
6. Test another current value. Input 500 mA to electric displacement control, check if the displacement
is within the range specified in the below table at this moment. If it is, the electric displacement
control adjustment complete, if it is not, please re-adjust.
7. Stop the prime mover, remove the pressure gauge and flow meter, and return the system to its
normal operating configuration.
Displacement
Input Current Size 130
400mA+/-8 mA 67.5cc+/-5cc
500mA+/-8 mA 101cc+/-5cc
Displacement table below), which can calculated by monitoring pump
Size 145
67.5cc+/-5cc
101cc+/-5cc
Size 193 Size 260
92.5 cc+/-5cc 140.5 cc+/-5cc
115.5 cc+/-5cc 172.5 cc+/-5cc
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