5. Start pump: water should be produced in 10 mins.
or less, the time depending on depth to water (not
more than 20’) and length of horizontal run (10’ of
horizontal suction pipe = 1’ of vertical lift due to
friction losses in the pipe).
If no water is produced within 10 mins., stop pump,
release all pressure, remove priming plug, refill and
try again.
Hazardous pressure and risk of ex plo -
sion and scalding. If pump is run con ti nu ously at
no flow (that is, with discharge shut off or without
priming), water may boil in pump and piping
system. Under steam pressure, pipes may rupture,
blow off of fittings or blow out of pump ports and
scald anyone near.
To prevent explosion, do the following:
A. Be sure discharge (valve, pistol grip hose nozzle,
etc.) is open whenever pump is running.
B. If pump fails to produce water when attempting to
prime, release all pressure, drain pump and refill
with cold water after every two attempts.
C. When priming, monitor pump and piping tempera-
ture. If pump or piping begin to feel warm to the
touch, shut off pump and allow system to cool off.
Release all pressure in system and refill pump and
piping with cold water.
Maintenance
Pump and piping need not be disconnected to repair
or replace motor or seal (see Figure 14). If motor is
replaced, replace the shaft seal (Key No. 7, Page 12).
Keep one on hand for future use.
Be sure to prime pump before starting.
NOTICE: Check motor label for lubrication instructions.
The mechanical shaft seal in the pump is water
lubricated and self-adjusting.
NOTICE: Drain pump when disconnecting from service
or when it might freeze.
PUMP DISASSEMBLY
1. Disconnect power to motor.
NOTICE: Mark wires for correct assembly.
2. Remove capscrews holding seal plate to pump
body. Motor assembly and seal plate can now be
pulled away from pump body (Figure 14). CARE-
FULLY remove gasket.
CLEANING/REPLACING IMPELLER
NOTICE: First, follow instructions under “Pump Dis-
assembly”.
1. Remove screws fastening diffuser to seal plate;
re move diffuser (see Figure 15). Exposed impeller
can now be cleaned.
7
750 0993
Figure 11 – Run Ten Minutes or Less
20
100
80
60
40
3026 0997
Figure 12 – Do Not Run Pump with Discharge
Shut-off.
ON
OFF
Figure 13 – Disconnect Power
3027 0997
Figure 14 – Slide Motor Back
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