Minor Repairs; Changing The Shaft Seal Disassembly - Sauer Danfoss 20 Series Service Manual

MINOR REPAIRS

CAUTION!
These parts can be easily
damaged. Use care in
handling.
Each part should be
inspected separately if
parts are to be reused.
Always replace the O-rings.
Lubricate the small O-ring
with petroleum jelly and
insert into the I. D. of the
bronze rotating ring.
Lubricate the large O-ring
and place the O. D. of the
seal-stationary.
Series 20 – Axial Piston Motors
Service Manual and Repair Instructions
Disassembly and Assembly
Changing the shaft seal (disassembly)
Utilize the lifting gear and mounting
block in accordance with the fitting
instructions on page 14.
77
It is recommended that all shaft seal
parts be replaced. If parts are to be
reused, they must be protected from
being damaged by the shaft during
removal. Remove the large retaining ring
located on the shaft end of the motor.
Remove the side opposite the tangs from
the groove first.
71 Bronze ring
77 Seal-stationary
The rotating seal ring (bronze ring) is also
held in its position by the O-ring. It can
be removed with the help of two screw
drivers.
DKMH.PS.330.C1.02 520L0534
F000 070
The seal-stationary is removed next. It
is held in place by the friction of the
O-ring on its O. D. Remove seal-stationary
with the help of a seal puller to prevent
damage to outer edge.
75
F000 072
Clamp seal puller
on seal-stationary
77
F000 071
17