54
Removal and Replacing the Shaft Seal
of the Return Flow Nozzle Assembly DG 75
Removal:
Before removal make a note of all rele-
vent dimensions of the transmission
lever etc.
1.
Remove lock-nut (2), domed nut
(1) and the connecting piece (3).
2.
Remove end nut (4).
3.
Slide out the shaft seal (must not
be re-used).
Replacement:
1.
In place of the end nut (4) use
location tool (5).
2.
Remove plug in sleeve (6) (fitted
for protection of sleeve only) and
move sleeve over threads and
valve needle.
3.
Using a piece of pipe, slide the
new seal over sleeve (6) through
the locating tool (5) until it bottoms
in the seal housing (8). (The seal
should not be compressed).
4.
Remove the special tools.
5.
Replace the end nut (4), connec-
ting piece (3), lock nut (2) and
domed nut (1).
6.
Tighten the locking nut to the
domed nut.