Pump Control Cover Plate; Displacement Control Orifices - Danfoss T90 Series Service Manual

Service Manual
Series T90 Axial Piston Pumps
Minor repair

Pump control cover plate

Displacement control orifices

© Danfoss | March 2020
Removal
1. Thoroughly clean external surfaces prior to removal of cover plate.
2. Using a 5 mm internal hex wrench, remove the six cover plate mounting screws (M90). Remove the
cover plate (M1) and gasket (M11) from housing. Discard the gasket.
C
Caution
Protect exposed surfaces and cavities from damage and foreign material.
Reassembly
Install a new gasket on the housing. Install the cover plate and install the screws. Torque the screws to
16 N•m [12 lbf•ft].
Install a sealing washer under the head of any mounting screws that are installed into through holes in
the housing.
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].
M90 (x6)
h
5 mm
16 N•m [12 lbf•ft]
M1
M11
d
P106 184E
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