Pump Service (Continued)
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 detergent; press
ceramic seat into seal plate firmly and
squarely with finger pressure (as per
figure to left).
2. If ceramic seat will not locate properly,
remove it, place face up on bench and
reclean cavity. Repeat Step 1. 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 ¾” (19mm)
standard pipe for pressing purposes.
NOTICE: Be sure not to scratch or
mar the polished surface or the seal will
leak.
4. Remount seal plate on motor. Tighten bolts to 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 to tighten). Torque
lock screw to 57.6-63 kg/cm.
8. Mount diffuser on seal plate; tighten screws to 11.2-16.1 kg/cm torque.
9. Assemble motor and seal plate to pump casing; ensuring that the body
clamp is properly seated.
NOTICE: Clamp knob can be located in any position around the pump
body; if it is moved after assembly, tighten knob while tapping around
the clamp to assist sealing. Do not move clamp while pump is full of
water.
10. Prime pump according to instructions on Page 9.
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.
12
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