Minor Repair And Replacement - Variable Motor; General - Sauer Danfoss 51 Series Service Manual

Bent Axis Variable Displacement Motors

Minor Repair and Replacement - Variable Motor

Shaft
Seal
Variable Displacement Motor (SAE Flange Configuration)
Minor Repairs may be performed, following the proce-
dures in this section, without voiding the unit war-
ranty. Although specific products are illustrated,
these procedures apply to all units in the Series 51
family.

General

Cleanliness is a primary means of insuring satisfac-
tory transmission life, on either new or repaired units.
Cleaning parts by using a solvent wash and air drying
is adequate, providing clean solvent is used. As with
any precision equipment, the internal mechanism
and related items must be kept free of foreign mate-
rials and chemicals.
50 - 1
Loop Flushing
Valve
Minimum Displacement
Limiter
Fig. 50-1 - Minor Repairs
Charge Pressure
Relief Valve
Protect all exposed sealing surfaces and open cavi-
ties from damage and foreign material.
It is recommended that all gaskets and O-rings be
replaced. All gasket sealing surfaces must be cleaned
prior to installing new gasket. Lightly lubricate all O-
rings with clean petroleum jelly prior to assembly.
Series 51
Control
Orifices
Multi-function
Block
Control
51000052
51