Displacement Control Orifice Check Valve; Manual Displacement Control (Mdc) - Danfoss T90 Series Service Manual

Service Manual
Series T90 Axial Piston Pumps
Minor repair

Displacement control orifice check valve

Manual displacement control (MDC)

58 | © Danfoss | March 2020
3. Assemble the control onto the pump. Refer to the instructions for the specific control.
Underside of an HDC/EDC module showing orifice locations
A
B
TA
P
TB
Orifice plugs
Orifice check valve
1. Remove the control assembly as described in the instructions for the specific displacement control.
2. The orifice check valve is located in the control assembly, at the surface of the pump housing face.
Remove the spring retainer and spring from the orifice check valve cavity and then remove the orifice
check valve.
3. Clean and install the orifice check valve in the cavity and then install the spring and spring retainer to
hold the orifice check valve in position.
4. Assemble the control onto the pump. Refer to the instructions for the specific control.
Underside of an MDC module showing orifice locations
B
TA
A
P
Orifice plugs
Orifice check valve
Removal
1. Thoroughly clean external surfaces prior to removal of control.
2. Using a 5 mm internal hex wrench, remove the six control mounting screws (M90). Remove the
control (M1) (with orifice check valve (T40) and spring (T30)) and control gasket (M11) from the
housing. Discard the gasket.
If necessary, remove the control handle (M70) by removing the locking nut (M72) and washer (M71).
E101 085E
TB
E101 086E
AX216086485386en-000101