Changing The Shaft Seal (Disassembly) - Danfoss 20 Series Service Manual

Service Manual and
Repair Instructions
Disassembly and Assembly
Minor repairs
(continued)
Axial Piston Pumps Series 20

Changing the shaft seal (disassembly)

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 pump.
Remove the side opposite the tangs from the
groove first.
71 Bronze ring
77
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.
L1003506 • Rev BA • Jun 2014
F000 086
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.
C 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.
F000 088
75 Seal-
stationary
F000 087
77 Clamp seal puller
on seal-stationary
19