It is recommended that all shaft seal parts be replaced.
If parts are to be reused, they must be protected from
being damaged by the shaft during removal.
1. Remove the large retaining ring (Truarc #7
Retaining Ring Pliers) located on the shaft
end of the unit. Remove side opposite the
tangs from the groove first.
2. The aluminum housing is removed next. It is
held in place by the friction of the O-ring on its
O.D. Pry the housing toward the end of the
shaft until the O-ring is free.
3. The bronze sealing ring is also held in place
by internal O-ring friction. Using hand force
only, work this part free and carefully slide it
over the shaft.
This part is easily damaged. Use care in handling.
4. Each part should be inspected separately if
parts are to be reused. Always replace the
three (3) O-rings.
5. Prior to assembly, lubricate the small O-ring
with petroleum jelly and insert into the I.D, of
the bronze sealing ring. Insert the other small
O-ring (lubricate) and insert into the aluminum
6. Slide the bronze sealing ring over the shaft
and onto the shaft pilot diameter with the O-
ring facing the unit. Work the O-ring into
place using hand force only until it snaps into
Protect parts from damage by the shaft.
7. Insert the stationary seal pilot into the
aluminum housing, locating the notch in the
stationary seal over the pin in the housing.
Lubricate the large O-ring and place on the
housing. The stationary seal should have a
slight spring load due to the springs in the
housing. Make certain all six (6) springs are
in place in the aluminum housing before
sliding it into position.
8. Slide the aluminum housing into place against
the bronze sealing ring using hand force only.
9. Compress the aluminum housing to expose
the retaining ring groove. Install the retaining
ring, with the beveled side out, putting the
side opposite the tangs into the groove first.
Be certain that the retaining ring has snapped
into its groove completely.