Loop Flushing Shuttle Valve (Option) - Sauer Danfoss 51 Series Service Manual

Bent Axis Variable Displacement Motors
Minor Repair and Replacement - Variable Motor (Continued)
51000061
Fig. 50-12 - Install
Seal Carrier
(Cartridge)
51000062
Fig. 50-14 - Remove
Shuttle Valve Plugs
Fig. 50-16 - Loop Flushing Shuttle Valve
Components
51000064
Fig. 50-17 - Install
Valve Spool and
Washers
54
51000057
Fig. 50-13 - Install
Carrier Retaining
Ring (Cartridge)
51000063
Fig. 50-15 - Remove
Valve Spool
51000066
51000065
Fig. 50-18 - Install
Plugs and Springs
Install the carrier O-ring into the groove in the hous-
ing. Prior to assembly, lubricate the carrier O-ring and
the I.D. of the seal with petroleum jelly.
Protect the seal lip from damage during installation by
wrapping the spline or key end of shaft with plastic
film, or by using a seal installation tool.
Assemble the carrier and seal over the shaft and into
the housing bore. Take care to not damage the O-ring
or seal lip during installation.
Install the seal carrier retaining ring.

Loop Flushing Shuttle Valve (Option)

Using an 11/16" wrench, remove the hex plugs from
both sides of end cap.
Remove springs and spring seat washers. Note the
orientation of the washers.
NOTE The 250 frame size motors use thicker spring
seat washers.
Remove flushing valve spool.
Inspect parts for damage or foreign material.
Install flushing valve spool in end cap, then install the
spring seat washers (thick washers on 250 frame size
motors) on each end of the spool. The step on the
spring seat washers should face out, toward the
springs.
Install the spool springs and hex plugs. Torque the
plugs to 41 Nm (30 ft•lbsf).
Series 51
50 - 4