Gorman-Rupp Pumps S6B1-E95 575/3 1429763 and up - Manual (Page 44)

S SERIES PUMPS OM-06257
MAINTENANCE AND REPAIR PAGE E - 18
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.
If heating the bearings is not practical, use a suit­
ably sized sleeve and an arbor (or hydraulic) press
to install the bearings on the shaft.
When installing the bearings onto the
shaft, never press or hit against the outer
race, balls, or ball cage. Press only on the
inner race.
Secure the gasket (41) to the cap with a light coat­
ing of gasket adhesive.
Rotor And Intermediate Reassembly
(Figure E-1)
Use fresh solvent to clean all gasket and O‐ring
surfaces of the motor housing (20) and intermedi­
ate (17), completely removing any old gasket and
cement material. Inspect the sealing surfaces for
burrs, nicks and pits which could cause a poor
seal. Repair or replace as require.
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 rotor (23), assembled bearings (24
and 39) and bearing cap (40) on a work surface
with the impeller end up, and use blocks to secure
it in this position.
To ease alignment of the bearing cap and inter­
mediate, install two long studs, finger‐tight only,
180
_ apart in the bearing cap mounting holes.
Using a three‐leg sling and lifting eyes in the inter­
mediate flange holes, carefully lower the intermedi­
ate over the shaft and lower bearing, guiding the
studs in the bearing cap through the holes in the
intermediate as it is lowered into place.
Apply `Never‐Seez' or equivalent compound on the
threads of the capscrews (43). Use two of the caps­
crews and lockwashers (44) to draw the intermedi­
ate and bearing cap together. Remove the studs
temporarily installed in the bearing cap and install
the remaining capscrews and lockwashers; torque
the capscrews evenly in a cross‐sequence to 20 ft.
lbs. (240 in. lbs. or 2,8 m. kg.).
Rotor And Intermediate Installation
(Figure E-1)
Use fresh solvent to clean the bores and all gasket
surfaces of the motor housing (20), completely re­
moving any old gasket and cement material. In­
spect the sealing surfaces for burrs, nicks and pits
which could cause a poor seal, and repair or re­
place as required.
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.
Apply `3M Gasket Adhesive No. 847' or equivalent
compound to the motor housing gaskets (18, 19
and 42). Position the gaskets on the motor hous­
ing, making sure the gaskets are properly seated
and the adhesive holds them securely.
Using a three‐leg sling and lifting eyes in the inter­
mediate flange holes, carefully lower the as­
sembled intermediate and rotor assembly (23) into
the motor housing (20), guiding the upper bearing
(18) into the motor housing bearing bore. Tap the
intermediate with a soft faced mallet until it mates
tightly with the motor housing.
Apply `Never‐Seez' or equivalent compound on the
threads of the motor housing studs (45). Secure
the intermediate to the motor housing with the