Gorman-Rupp Pumps SF4C 1528832 and up - Manual (Page 41)

OM-06511 SF SERIES
PAGE E - 17 MAINTENANCE AND REPAIR
race, balls, or ball cage. Press only on the
inner race.
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 inter­
mediate, rotor shaft and bearings into the motor
housing until the female terminal (14) can be se­
curely attached to the male terminal (15) 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 inter­
mediate into the motor housing until fully seated.
Apply “Never‐Seez” or equivalent compound on
the threads of the capscrews (12) and secure the
intermediate to the motor housing with the hard­
ware (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 inju­
ry or death. Make certain that the control
handle on the control box is in the off po­
sition and locked out, or that the power
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 carful 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