FDI P2131, Техническое руководство, Страница: 149 / 161

Bronze and Cast Iron Models
Maintenance (Continued)
and shaft sleeve and make certain
that they are perfectly clean.
3. Wet the rubber portion of the new
seal seat (part of Ref. No. 4a) with a
light coating of soapy water. While
wearing clean gloves or using a clean
light rag, press seal seat squarely into
adapter recess. Use the cardboard
washer (usually supplied with new
seal) to place over the polished
ceramic surface and use a piece of
pipe or dowel rod to press in firmly
but gently (See Figure 6). Avoid
scratching the ceramic face, usually
white.
4. Dispose of cardboard washer. Check
again to see that ceramic surface is
free of dirt and all other foreign par-
ticles and that it has not been
scratched or damaged.
5. Assemble the collar (Ref. No. 4b),
and seal (part of Ref. No. 4a) over
the pump shaft sleeve (Ref. No. 5).
If needed, a light coating of soapy
water can be used on the inside of
the seal bellows (part of Ref. No. 4
that fits onto the shaft) to facilitate
for easier installation (see Figure 7).
6. Screw the pump shaft sleeve (Ref.
No. 5) onto the motor shaft and turn
clockwise until it bottoms. This loca-
tion provides the proper seal tension
for good surface contact between
the seal and seat. If the key is assem-
bled in the pump shaft before the
shaft is threaded on, it will provide a
better grip for tightening. Tighten
setscrew (Ref. No. 11) on sleeve (See
Figure 7).
NOTE: A short “run-in” period may be
necessary to provide completely leak-
proof seal operation.
NOTE: It will be necessary to remove
plug in motor end cap to expose slot.
If removed, be sure to reinstall plug
AFTER pump is completely assembled.
7. Assemble the impeller (Ref. No. 7)
over the pump shaft sleeve (Ref. No.
5). Make sure the impeller floats
freely (see Figure 7).
8. Assemble the o-ring gasket (Ref. No.
8) and attach the cover (Ref. No. 9)
with the (4) 3/8" diameter screws
(Ref. No. 3). Torque to 15 to 20 ft-
lbs.. (See Figure 7).
9. Before and after the plumbing is
attached to the pump, make sure
the pump turns freely. Rotate the
pump by inserting a screwdriver into
the back end of the motor and turn-
ing the motor shaft.
Seal will produce some
minor drag when spin-
ning motor shaft, but rubbing anywhere
else must be eliminated! Otherwise, damage
to pump and/or motor may occur.
Shertech Operating Instructions, Performance,
Specifications and Parts Manual
Form L-4069 (4/06)
( S /N' s AFS-0001 through AFS-0236 )
143