Step 4
Install the new seal seat
NOTE: The photo above is using a cutaway view for
better details.
Be careful not to touch the smooth, shiny surfaces of the
seal seat. The smooth shiny surfaces must stay clean at all
times. Foreign material on these surfaces can cause seal
failure. Before installing the new seal seat, spray or apply a
generous amount of light oil to the new seal seat and O-ring.
This will allow the O-ring on the outside of the seal seat to
easily slide into place during installation. Before you press
the seal seat in place, make sure you cover the seal seat
with the protective cardboard disc as shown in the photo.
Step 5
Remove the old seal assembly (carbon seal and retainer)
Remove the old seal assembly from the pump shaft while
holding the sideplate against the pump casing. This will
allow the seal retainer assembly to be removed without
pulling the rotor-shaft out of the pump. Inspect the rotor
shaft for burrs or scratches. If present remove with an
emery or polishing cloth.
Seal seat
Carbon seal
Roller bearings
Thrust bearing mounting ring
Thrust bearings
Bearing cap
Rotor shaft
Sideplate
Head
Retainer ring
Grease seal
NOTE ORIENTATION: The grease
seal is inserted with smooth side
up, flush with the shoulder of the
head, and directly beneath the seal
seat as shown in this illustration.
Figure 6.1
14
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