0
Lever rotation
A
D
isplac
emen
t
100 %
a
-a
100 %
B
-b
b
P102 034E
-35 max.
35 max.
Control lever rotation range
a
0,5° - 4.5°
b
24° - 30°
Volumetric efficiencies of the system will have impacts on the start- and end input- commands.
Response Time
The time required for the pump output flow to change from zero to full flow (acceleration) or full flow to
zero (deceleration) is a function of the size of the orifice and charge pressure in the control, charge
pressure, valve plates and other vehicle dynamics.
A range of orifice sizes is available for the Series 90 manual displacement control to assist in matching the
rate of swashplate response to the acceleration and deceleration requirements of the application. Testing
should be carried out to determine the proper orifice selection for the desired response. For more
information regarding response time for individual orifices, please contact your Danfoss representative.
Pump output flow direction vs. control handle rotation
MDC handle rotation parameters
"B"
"A"
30°
minimum
30°
minimum
Neutral
position
Maximum
displacement
Maximum
displacement
P108 550E
Technical Information
Series 90 Axial Piston Pumps
Control Options
36
520L0603 • Rev 0804 • March 2016
