STA-RITE MAX-E-PRO Owner's Manual page 12

Figure 5: Press seal into seal plate
7. Unscrew impeller from shaft (turn counterclockwise when facing it).
NOTICE: On models with impeller screw: Remove impeller screw
(left hand thread - turn clockwise) and gasket before removing impeller.
Inspect gasket for damage, cracks, etc. Replace if damaged.
8. Pull rotating member of seal off of impeller sleeve; clean sleeve.
9. Remove four screws holding seal plate to motor.
10. Place seal plate face down on flat surface and tap out ceramic seat.
11. Clean seal cavity in seal plate and clean motor shaft.
Pump Reassembly/Installing New Seal
1. Ceramic seat must be clean and free of dirt, grease, dust, etc. Wet outer
edge of rubber cup on ceramic seat with small amount of liquid deter-
gent; press ceramic seat into seal plate firmly and squarely with finger
pressure (Figure 5).
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 cardboard 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 surface 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 impeller sleeve until
rubber drive ring hits 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 automatically locate seal in
seal plate.
NOTICE: On models with impeller screw: Install impeller gasket and lock
screw (left-hand thread - turn counterclockwise). Torque lock screw to
50-55 inch-lbs. (57.6-63 kg/cm).
8. Mount diffuser on seal plate; tighten screws to 10-14 inch-lbs. (11.2-16.1
kg/cm) 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 as-
sist 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 re-
move clamp. Clamp may blow off of pump if adjusted under pressure.
10. Prime pump according to instructions on Page 9.
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