37
2005 Doctor Martin Luther King Jr Street
Indianapolis, IN 46202
Rev 07-2021
A pump operating in a new well or
sump should be run with its impellers in
the mid-position, which is approximately
3/16 inch above the lateral bowl wear
rings. This is to minimize the possibility
of damage due to sand in the water.
When the water is clear of sand, the
impellers should be reset to the most
efficient pumping position.
Verify free rotation of pump-motor
shaft. It should rotate by hand freely.
Align the holes in the adjusting nut with
the radial marks indicating the location
of the tapped holes in the top drive
coupling.
Turn the nut slightly in either
direction, if necessary, to align two of
the holes 180° apart in the adjusting nut
with the tapped holes in the top drive
coupling.
Install the adjusting nut retaining
bolts and tighten.
Replace the motor canopy prior to
putting the pump in operation.
Note: The impellers must be
adjusted before any attempt is made
to start the pump.
After freedom of rotation is verified,
the lock out on the electrical power
should be removed and the pump is now
ready for start-up.
The driver cover must be in place
when the pump is in operation.
Rotating parts below this cover could
cause grave personal injury if
exposed.
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