6. Remove shaft (L100) and roller bearing assembly (L10) from pump. You can transfer the bearing
assembly to the new shaft.
7. Using snap-ring pliers, remove the retaining ring (L20) that secures the roller bearing assembly.
Remove the roller bearing assembly.
Shaft assembly
Inspection
1. Inspect the seal carrier, the new seal and the O-ring for any damage or nicks.
2. Inspect the shaft and bearing for rust, wear, or contamination. Spin the bearing in your hand feeling
for roughness. Replace if necessary.
Reassembly
1. Using the arbor press, press the new seal (L40) into seal carrier (L30). Be careful not to damage the
seal.
If the shaft is not being replaced proceed to step 3.
2. Place roller bearing assembly on new shaft and secure with the retaining ring.
3. Install an installation sleeve or wrap spline or keyed end of shaft with plastic film to prevent damage
to the sealing lip on the seal during installation.
Service Manual
Series 90 Pumps
Minor repair
520L0818 • Rev 0101 • August 2015 43
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