Sauer Danfoss 51 Series Service Manual page 69

Bent Axis Variable Displacement Motors
Minor Repair and Replacement - Variable Motor (Continued)
Install the pilot piston pin in the multi-function block.
Position the valve housing (with O-rings) on the multi-
function block.
Install the pilot piston into the housing and over the
pin. The end of the piston with the cross drilled hole
should engage the pin.
Install the small spring in the outer end of the pilot
piston.
Install the control cover and gasket. Align the control
assembly with the multi-function block and install the
four (4) screws.
Torque the control screws to 6.4 Nm (4.7 ft•lbsf).
Reinstall the PCP valve, if removed.
50 - 19
51000097
Fig. 50-101 - Pilot
Piston Pin Installed
51000128
Fig. 50-103 - Install
Pilot Piston
51000130
Fig. 50-105 - Torque
Cover, Gasket, and
Screws
Series 51
51000127
Fig. 50-102 - Install
Control Housing
51000129
Fig. 50-104 - Install
Spring
51000131
Fig. 50-106 - Install
PCP Valve
69