INSPECTION
Page 12 of 13
After the pump has been disassembled, check the following before reassembly:
Impeller Wear
1.
Check the wear hubs on the impeller for excessive
wear, or clearance with the wear rings. If the clear‐
ance exceeds 0.020/0.025 in., or if the impeller hubs
are badly scored or grooved, replace the impeller and
both wear rings. Tapped holes are provided in each
wear ring to aid in removing them.
2.
Check all O-rings for cuts,nicks, or other damage.
Mechanical Seal
1.
When a pump is disassembled, it is advisable to in‐
stall a new mechanical seal during reassembly, espe‐
cially if the pump had been in service for a long period
of time.
2.
Check the shaft sleeve in the area under the mechani‐
cal seal bellows to be sure it is free of severe
scratches or other damage. Also check the impeller
hub in the area under the mechanical seal to be sure
it is free from scratches or other damage.
Oil Seals
Check the impeller shaft and engine crankshaft sleeve for
signs of severe wear from the oil seal.
Ball Bearing, Gears and Needle Bearing
Check for severe wear and replace as necessary.
Summary of Contents for PB13 Series
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