Pentair PR AQUA ROTOFILTER Installation And Operation Manual page 57

SECTION 14: DRIVE ASSEMBLY MAINTENANCE
7. Support the motor with one hand and remove
bolts with the other hand. Slide the motor out
from the gear and set aside.
8. Using a hex key wrench, loosen both cap screws
on the set collar until you are able to slide the
collar off of the shaft.
9. Remove the bolts securing the gear to the
enclosure by using an open-end wrench to hold
the nylocs on the gear mount flange, and an
open-end wrench to loosen the bolt heads on the
inside of the enclosure. See Figure 69.
Figure 69. Removing the gear mount bolts
(inside not shown)
10. Slide the gear off the shaft once all nyloc
fasteners have been removed. See Figure 70.
Figure 70. Removing the gear from the shaft
11. Remove the -inch key stock from the
1 / 8
drive shaft.
12. Inspect the black oxide set collar on
the shaft, which can be seen once the
gear has been removed.
13. If the collar is tight and cannot be moved,
mark the collar location on the shaft with
a pencil or marker. See Figure 71.
Figure 71. Marking the set collar
14. If the set collar is loose, it will need to be
repositioned before marking its location. See
Section 14.11 prior to continuing.
15. Remove the 2 socket cap screws in the set
collar with a hex key wrench.
16. Remove the set collar from the shaft.
PR Aqua Rotofilter™ Drum Filter Installation and Operation Manual
57