Charge Pump - Danfoss T90 Series Service Manual

Service Manual
Series T90 Axial Piston Pumps
Minor repair

Charge pump

52 | © Danfoss | March 2020
Auxiliary pad components (typical)
J80
Endcap screw
J70
Screw torque
See appropriate table for wrench size and torque
Reassembly
1. Lubricate and install O-ring (J50) on end cap pilot.
2. Install the auxiliary mounting pad (J60) on rear of endcap.
3. Install four large screws (J80) and new washers (J70) through the mounting pad and end cap into the
housing. Torque per the accompanying table.
Torque endcap screws in a criss-cross pattern
End cap screw torque
Frame size
055
075 – 100
The following procedure shows how to remove and install a charge pump.
Removal
1. For pumps with an auxiliary mounting pad, refer to the
C
Caution
On earlier production frame size 75 pumps with twin ports, secure the endcap to the pump housing
with a clamp to avoid gasket damage.
2. Remove the six screws (H80) holding the charge pump cover retainer (H70).
3. Remove the retainer (H70) and the charge pump cover (J15). Remove and discard O-ring (J40). Note
the orientation of the gerotor assembly (H05).
Retainer screw wrench size
Frame size
055 – 100
J50
J60
E101 084E
Torque
122 N•m [90 lbf•ft]
298 N•m [220 lbf•ft]
Auxiliary Pad
Wrench size
10 mm
instructions.
AX216086485386en-000101