Alfa Laval AFPX 617XGV-14/74CG, Instruction Manual

Page: 126 / 154

3.7 Major Service (MS), assembly 3 Dismantling/Assembly
126
4. Clean the ball bearing housing in the frame
and oil the outer race of the ball bearing.
Force the worm wheel shaft into its position in
the frame so that the ball bearing enters
correctly into its seat. Use the driving-on
sleeve and the ring forcing the outer race of
the ball bearing.
5. Fit the lock ring. Tighten it with the pin
spanner.
Left-hand thread!
6. Fit the coupling disc. Check that the key in
the worm wheel shaft enters into the recess in
the nave of the disc.
7. Lock the coupling disc in its position by
means of the plain washer, spring washer
and centre screw.
NOTE
The bearing must cool down before fitting the
worm wheel shaft into the frame. Otherwise
the tolerance between the outer diameter of
the bearing and the bearing housing will be
too narrow.
G
0
21
35
2
1
G
0
24
60
1
1
G
0
77
77
1
1