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Pump
Servicing
Read the following instructions
carefully before replacing any
parts. Reasonable care and safe
methods should be practiced.
Check local codes and
requirements before installation.
Only competent electrician
should make the installations.
Before removing the pump from
its installation for repairs, check
first to see if the trouble is
caused by:
1. Miswiring of the pump into
the terminal block.
2. Miswiring of the float level
controls into the panel.
3. Miswiring inside the
control panel.
4. Tripped circuit breaker. If the
breaker is manually reset and
then trips off again, the
problem could be:
a. short circuit in motor or
control panel
b. water in the motor
housing
c. insufficient amp capacity
of
wiring or breakers, or low
voltage supply
d. improper panel wiring
5. Tripped overload. If overload
is manually reset and then
trips off again, the problem
could be:
a. pump or piping clogged
b. pump motor or bearings
may be defective
c. start capacitor in motor
may have failed
d. pump may be miswired to
terminal block head lower
than rating, pumping too
much liquid
4
6. Air locked pump. Disconnect
piping at union and run until
all air bubbles are expelled.
7. Wrong impeller rotation.
The rotation should be
counterclockwise when
looking at the impeller. Correct
improper rotation on three
phase pumps by reversing any
two line leads. No rotation
check is necessary on single
phase pumps.
8. Closed discharge gate valve.
9. Plugged impeller or pipeline.
10.Discharge head may be too
high. Check elevation against
design point of pump.
80
70
60
50
40
30
20
10
0
0
32
11. Floats not hanging free in
the sump.
12.Malfunctioning floats.
WARNING: Be certain power
to pump is off! Disconnect
pump power cord from
terminals and remove pump
from sump.
1. Clean any dirt or trash from
the outside of the pump
before
2. Check for an obstruction in
the impeller by looking
through the suction hole of
the pump. The shaft should
turn freely if unobstructed.
Keep fingers, clothing or any
96
64
CAPACITY-U.S. G.P.M.
dismantling.
160
192
128
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