• The case cover O-ring
• The rear housing O-ring
• The follower and follower O-ring that seals to the shaft
• The impeller woodruff key
• The seal locking pin
• The seal clamp ring and 3 screws
• And, a .002 red and .003 green cover shim for adjusting
impeller clearance
6. The tools required for this procedure are:
• #2 phillips screwdriver
• #2 flat screwdriver
• 1/2” box wrench or 1/2” socket and ratchet
• Flat metal file
• 12” adjustable wrench
• O-ring pick
• Diagonal or side cutting pliers
• 300 to 400 grit emery cloth and scotch-brite
• You will also need a can of spray lubricant or light oil
and plenty of clean shop towels
7. Before you begin servicing the pump, make sure the
pump and system have been depressurized!
The seal replacement is an easy procedure so it’s not
necessary to remove the pump from the piping.
Keep the work area, tools and parts clean.
8. Begin by removing the bolts from the pump cover with
a ½” wrench or socket.
If you can’t remove the pump cover by hand, use the
cover bolts in the bolt holes located at the three and
nine o’clock position as pull or jacking bolts to help
remove the cover.
9. With the cover removed, note the number and color of
shims used for impeller clearance.
They will be discussed later in re-assembly.
This is the O-ring that seals the cover to the casing.
11
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