9
Pump Reassembly/Installing New Seal
1. Ceramic seat must be clean and free of dirt, grease,
dust, etc. Wet outer edge of O-Ring with small
amount of liquid detergent; press ceramic seat into
seal plate cavity firmly and squarely with finger
pressure (Fig. 7).
2. If ceramic seat will not locate properly, remove it,
place
face up
on bench and reclean cavity. Ceramic
seat should now locate.
3. If seat still will not locate properly, place a card-
board washer over the polished face and use a piece
of 3/4" (19mm) standard pipe for pressing purposes.
NOTICE: Be sure
not to scratch or mar polished sur-
face or seal will leak.
4. Remount seal plate on motor. Tighten bolts to 60-80
inch-lbs. (69-92 kg/cm) torque.
5. Apply a
small
amount of liquid detergent to inside
diameter of rotating half of seal.
6. Slide rotating seal member, polished face last, over
threaded shaft end and shaft shoulder until rubber
drive ring hits shaft shoulder.
NOTICE: Be sure
not to nick or scratch polished
seal face; seal will leak if face is damaged.
7. Screw impeller onto shaft (clockwise); this will auto-
matically locate seal in seal plate.
NOTICE:
On models with impeller screw: install im-
peller gasket and lock screw (left-hand thread – turn
counterclockwise).
8. Mount diffuser on seal plate; tighten screws to 10-14
inch-lbs. (11.5-16.1 cent.-kg.) torque.
9. Assemble motor and seal plate to volute; be sure
clamp is properly seated.
NOTICE:
Clamp knob can
be located in any position around volute; if it is
moved after assembly, tighten knob while tapping
around clamp to assist sealing. Do not move clamp
while pump is full of water.
Hazardous pressure. Release all pressure
from pump and piping system before working on pump
or attempting to adjust or remove clamp. Clamp may
blow off of pump if adjusted under pressure.
10. Reinstall pump base mounting bolts (if used) and
prime pump according to instructions on Page 7.
Figure 7
