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SHAFT SEAL
The mechanical shaft seal should be replaced if water
is noticed around the motor shaft. Remove case and
impeller and, using two screw drivers to pry on each side,
remove seal stationary seat. Clean seat area of frame,
install new stationary seat with ceramic surface facing out
toward impeller and slide new rotating element over shaft
sleeve with hard carbon surface against ceramic seat.
Be sure to keep all surfaces clean. Lubricating seal parts
with water will help the installation of the seal. Reinstall
impeller and pump case.
STUFFING BOX
Pumps equipped with a stuffi ng box depend upon a small
amount of water leakage for packing lubrication. Drain
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sump below the stuffi ng box is provided with a 1/4" pipe
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tapping for attaching a drain pipe if desired. Stuffi ng
box should be tightened with pump running. A fi nger
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tight adjustment is generally suffi cient. When installing
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additional packing, the joints of successive packing pieces
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should be staggered to give the best results.
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CLEANING STRAINER
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The strainer should be cleaned and fl ushed twice a year,
or more often if necessary. A clogged strainer will seriously
impair pump operation.
ADDING BOILER COMPOUND
BOILER COMPOUND SHOULD NOT BE INTRODUCED
INTO SYSTEM ON THE SUCTION SIDE OF PUMP.
Boiler compound often coagulates when it contacts
hot water and becomes abrasive, and will damage the
raceway and impeller of the pump.
DRAINING THE PUMP
To drain pump, remove 1/4" pipe plugs from bottom of
pump frame and pump case. After pump has drained, start
pump to discharge liquid from the impeller. Always protect
the pump, piping, tank, etc., from freezing - or drain the
system when there is a chance of freeze-up.
IMPELLER ADJUSTMENT
After years of service, it may be desirable to adjust the
impeller to compensate for water wear. If this is necessary,
because of reduced capacity or pressure, see instructions
on next page.
MOTOR
Keep motor clean and dry. It is drip-proof when installed
horizontally and the windings are protected from excess
humidity, but extreme conditions should be avoided when
possible. If motor fails to run, be sure power is on, all
switches or electrical controls are closed, fuses are in
order and all electrical connections are tight. (Motor must
be repaired by Authorized Repair Station under terms of
guarantee.)
FAILURE TO PUMP
If the motor runs, but no water is pumped, be sure pump
is primed, that there are no air leaks in suction piping, that
all gate valves are open and all check valves operate.
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