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M A I N T E N A N C E
BEARING FRAME
DISASSEMBLY
Disassembly is uniform for all SP Series pumps.
1.
Remove the screws from the outboard and inboard bearing covers.
2.
Remove the outboard bearing cover and shims.
3.
Drive the shaft and bearings through the housing from the impeller end using a soft hammer.
If a soft hammer is not available, a block of wood should be used to protect the end of the
shaft. Note carefully the location of the brass shims on one side or the other of the outboard
bearing. The shims must be installed in the same location when reassembling.
No further disassembly is recommended unless inspection shows that replacement of bearings or
grease seals is required. If bearings are to be replaced:
1.
Bend back the prong on the outboard bearing retaining washer.
2.
Remove the outboard bearing nut and retaining washer. If a spanner wrench is not available
for removing the nut, a soft blunt implement should be inserted in the slot in the nut and
tapped with hammer until the nut loosens and can be removed.
3.
Using a bearing puller, or arbor press remove the damaged bearing(s) from the shaft.
4.
If grease seals need replacement, press or drive them out of the bearing covers.
INSPECTION
1.
Remove the drain plug from the power frame. If your pump is equipped with an oiler, and it is
desirable to drain the power frame reservoir, remove the oiler from the power frame.
2.
Remove any accumulation of grease from the inside of the power frame.
3.
Reassemble the drain plug or install the oiler as applicable.
4.
Inspect the power frame for cracks or other damage that could impair function of the pump.
5.
Clean the outside of the power frame, shaft, and bearing covers with a clean rag soaked in
nonflammable solvent and flush all surfaces.
6.
Flush the inside of the power frame with nonflammable solvent to remove any harmful material
from the power frame reservoir. Dry with compressed air or allow solvent to evaporate.
Note:
Clean impeller end of the shaft thoroughly after reassembly to remove any solvent that
could contaminate the process fluid.
7.
Inspect the shaft carefully for nicks or scratches that can damage the grease seals or the o-
ring seal at the liquid end. Remove small nicks or scratches with fine file or emery cloth.
8.
Examine the bearing covers, casing and impeller for cracks or other signs of excessive wear.
