7 Servicing/Maintenance
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CHTRa
6. Slide angular contact ball bearing 320.02 in face-to-face arrangement onto the
shaft from the non-drive end.
7. Allow the angular contact ball bearing to cool down.
8. Attach the non-drive-end bearing housing 350.02 to the lifting equipment.
9. Slide bearing housing 350.02 onto shaft 210.
10. Insert hexagon head screws 901.03 but do not yet tighten.
11. Check the radial position of the non-drive-end bearing housing 350.02 relative
to the pump shaft using a dial gauge. Re-align the bearing(s) if necessary.
(
12. Insert taper pins 560 into bearing housing 350.02. Reaming the taper pin holes
with a reamer may be necessary after bearing housing re-alignment. If too much
reaming is required, make a new tapered hole in another position.
13. Tighten hexagon head screws 901.03.
14. Check the axial position of the non-drive-end bearing housing 350.02 relative to
the pump shaft. Re-align the bearing(s) if necessary.
(
15. Slide oil thrower 508.02 onto the shaft from the non-drive end.
16. Slide lock washer 931.02 onto shaft 210.
17. Fit locknut 920.03 and tighten.
18. Bend tab of lock washer 931.02 so that it engages with the nut’s groove (nut
locking).
19. Slide bearing cover 360.02 with O-ring 412.02 onto shaft 210 from the non-drive
end.
20. Tighten hexagon head screws 901.03.
21. Slide labyrinth ring 423.03 into bearing housing 350.02. Ensure the labyrinth
ring is positioned correctly, see manufacturer’s product literature.
22. Slide bearing cover 360.03 with O-ring 412.03 into the bearing housing.
23. Fit guard 680 and bearing cover 360.03 including O-ring 412.03 to bearing
housing using hexagon head screws 901.05.
24. Slide labyrinth ring 423.04 into bearing cover 360.06. Ensure the labyrinth ring is
positioned correctly, see manufacturer’s product literature.
25. Insert key 940.06 into the shaft.
26. Mount fan impeller 831.01 on adapter 82-5 using hexagon head screws 901.06.
27. Slide adapter 82-5 with fitted fan impeller 831.01 onto shaft 210.
28. Secure adapter 82-5 using circlip 932.01.
29. Fit fan hood 832.01 to guard 680 using cheese head screws 900.01. Observe the
tightening torques.
7.4.9.2 Fitting the drive-end radial bearing (for models with rolling element bearing
only)
CAUTION
Improper assembly/dismantling
Damage to thrust ring!
▷
Use a suitable tool to bend open the thrust ring until it can be pulled from the
shaft.
▷
Never bend the thrust ring excessively.
1. Slide thrust ring 501 onto the shaft until it sits in the shaft groove and the
groove of oil thrower 508.01.
2. Fit oil thrower 508.01. Ensure that the thrust ring 501.03 fits neatly in the oil
thrower without any clearance.
