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

Page: 140 / 154

3.7 Major Service (MS), assembly 3 Dismantling/Assembly
140
31. Clean and oil the worm wheel shaft, the nave
of the clamping element and the nave and
outer surface of the worm wheel. The oil must
be of the same quality as used in the worm
gear housing.
32. Push the worm wheel on the horizontal shaft
into position for driving the bowl spindle and
then slip the clamping element onto the worm
wheel.
33. Fix the worm wheel by first tightening the
three clamping element screws A, B and C
(see illustration), but only such that the
clamping element just sticks on the worm
wheel.
34. Then tighten all the screws uniformly and
successively around the clamping ring in the
order indicated in the illustration (1-12). Do
not tighten crosswise.
Tightening torque: 29 Nm
The tightening must be repeated several
turns around the clamping element until the
screws are fully tightened.
35. Rotate the spindle by rotating the coupling
drum by hand and check for smooth run. No
scraping or other jarring sounds must be
heard.
NOTE
Check continuously that the ring of the
clamping element fits evenly.
G
0
20
78
1
1
G
0
68
191
1