Auxiliary Pad - Danfoss T90 Series Service Manual

Service Manual
Series T90 Axial Piston Pumps
Minor repair

Auxiliary pad

© Danfoss | March 2020
Retainer screw torque
Frame size
055 – 100
End cap screw torque
Frame size
055
075 – 100
3. Install the auxiliary drive coupling (J10). The internally splined end of the coupling must engage the
main pump shaft.
4. Install the new charge pump cover assembly (J15) into the endcap. Ensure the cover is aligned
properly with the alignment pin.
5. Install the charge pump cover retainer (H70) and the six internal hex screws (H80). Torque the screws
per the table using a criss-cross pattern.
6. Lubricate and install O-ring (J50) on the endcap pilot.
7. Install the auxiliary mounting pad (J60) on the rear of the endcap.
8. Install four large screws (J80) through the mounting pad and endcap into the housing. Torque per the
table using a criss-cross pattern.
Removal
1. Remove the four end cap screws (J80). Remove and discard special washers (J70).
C
Caution
On earlier production frame size 75 pumps with twin ports, secure the end cap to the pump housing
with a clamp to avoid gasket damage.
2. Remove the auxiliary pad (J60) and discard the O-rings (J50 and J90).
Aux. pad screw wrench size
Frame size
055
075 – 100
Inspection
1. Inspect the auxiliary pad for damage and replace if any damage is found.
2. Take care to assure the surfaces are clean and free of any foreign material or paint prior to installing
the auxiliary pad.
C
Caution
Do not allow the force of the cylinder block spring and swashplate leveler springs to separate the end
cap from the pump housing. Gasket damage and external leakage may result.
Torque
16 N•m [11.85 lbf•ft]
Torque
122 N•m [90 lbf•ft]
298 N•m [220 lbf•ft]
Wrench sizes
19 mm hex
24 mm hex
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