Displacement Control Orifices; Displacement Control Orifice Check Valve - Danfoss 90 Series Service Manual

Service Manual
Minor repair

Displacement control orifices

Displacement control orifice check valve

Series 90 Pumps
Pump controls cover plate
Seal washer
location (42, 180, 250 cc)
1. Remove the control assembly as described in the instructions for the specific displacement control.
2. Orifice plugs may be located in the control assembly, at the pump housing face. Remove the orifice
plugs one at a time (to avoid mixing them up) with a 4mm internal hex wrench. Note the location of
each plug, do not interchange plugs. Clean, reinstall, and torque the orifice plugs to 3N•m [2lbf•ft].
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.
520L0818 • Rev 0101 • August 2015
M90 (x6)
h
5 mm
16 N•m [12 lbf•ft]
M1
M11
d
P106 184E
E101 085E
57