OM-06511
SF SERIES
PAGE E - 17
MAINTENANCE AND REPAIR
After the bearings have been installed and allowed
to cool, check to ensure that they have not moved
out of position in shrinking. If movement has oc
curred, use a suitably sized sleeve and a press to
reposition the bearings. Make certain that they are
seated squarely against the shaft shoulders.
Use
fresh
solvent to clean all O‐ring surfaces of the
motor housing and intermediate (8). Inspect the
sealing surfaces for burrs, nicks and pits which
could cause a poor seal. Repair or replace as re
quire.
Most cleaning solvents are toxic and
flammable. Use them only in a well ven
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain
ers.
Position the intermediate with the impeller end
down on some wood blocks tall enough to allow for
installation of the rotor shaft through the intermedi
ate.
Slide the assembled shaft and bearings into the in
termediate until the lower bearing seats squarely in
the intermediate bore. Secure the rotor and shaft to
the intermediate by installing the snap ring (4) in
the groove in the intermediate bore.
Install a new O‐ring (6) on the shoulder of the inter
mediate.
With the motor housing and stator positioned up
side down, carefully lower the assembled interme
diate, rotor shaft and bearings into the motor hous
ing until the female terminal (15) can be securely
attached to the male terminal (16) on the moisture
sensor.
Position the intermediate so the holes for the
mounting hardware in the intermediate align with
those in the motor housing and press the interme
diate into the motor housing until fully seated. Ap
ply “Never‐Seez” or equivalent compound on the
threads of the capscrews (12) and secure the inter
mediate to the motor housing with the hardware
(12 and 13). Torque the capscrews to 47 ft. lbs. (6,5
m. kg.).
Terminal Housing Assembly Installation
(Figure E-1)
The electrical power used to operate
this pump is high enough to cause in
jury or death. Make certain that the con
trol handle on the control box is in the off
position and locked out, or that the pow
er supply to the control box has been
otherwise cut off and locked out, before
attempting to open or service the pump
assembly. Tag electrical circuits to pre
vent accidental startup. Obtain the ser
vices of a qualified electrician to make
electrical connections.
Secure the pump in upright position with the hoist
ing bail and terminal housing assembly removed.
Clean the area round the motor housing opening
with fresh cleaning solvent, being careful not to al
low any dirt, debris or cleaning solvent to enter the
motor housing.
Most cleaning solvents are toxic and
flammable. Use them only in a well ven
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain
ers.
Make sure that the terminal housing O‐ring sup
plied with the replacement terminal housing as
sembly is securely installed on the shoulder of the
terminal housing and that it is clean and undam
aged. Check to ensure that the power and control
cable ground leads are securely attached to the in
side of the terminal housing body.
Make sure the contacts on the ends of the power
and control cable leads are firmly installed in their
respective housings and position the terminal
housing over the opening in the top of the motor
housing.
Check to ensure that the contacts on the ends of
the motor stator leads are firmly installed in their re
