Gorman-Rupp Pumps PAH8A60C-B 1537579 and up - Manual (Page 38)

PAH SERIES OM-06455
MAINTENANCE & REPAIR PAGE E - 16
With the lip seal sleeve in place, lubricate the lip
seal area of the shaft and slide the shaft and as­
sembled bearings into the bearing housing until
the retaining ring on the outboard bearing seats
against the pedestal. Remove the lip seal sleeve.
When installing the shaft and bearings into
the bearing bore, push against the outer
race. Never hit the balls, rollers or cages.
Apply a light coating of oil to the lip of the outboard
oil seal (12) and press it into the pedestal with the
lip positioned as shown in Figure 3. The face of the
oil seal should be just flush with the outer face of
the bearing cap.
Apply a light coating of oil to the lip of the oil seal
(20) and press it into the drive flange (21) with the
lip positioned as shown in Figure 3. The oil seal
should be centered in the flange bore.
Install the gasket (17) and slide the assembled
drive flange and oil seal over the impeller shaft. Use
caution not to cut or roll the lip of the oil seal (20) on
the shaft keyway. Secure the drive flange to the
pedestal with the hardware (15 and 16). Torque the
capscrews (16) to 41 ft. lbs. (5,7 m. kg.).
Lubricate the bearings as indicated in LUBRICA­
TION at the end of this section.
Securing Rotating Assembly to Power Source
(Figure 1)
Install the key (21) in the shaft keyway, making sure
to leave room in the keyway for the drive key (28,
Figure 3). Install the bushing (19) and sprocket
(18) on the shaft to the dimension shown in Figure
7.
Figure 7. Drive Sprocket Positioning
Secure the bushing and sheave to the shaft by
torqueing the bushing screws to 15 ft. lbs. (180 in.
lbs. or 2,1 m. kg.). Install the belt (20) over the
sprocket and up through the slot in the mounting
flange (20, Figure 3).
Use a suitable hoist and sling to position the air
compressor assembly (5) on the mounting flange.
Slide the belt over the air compressor sprocket.
Use a pry bar to raise the compressor high enough
to install the spacers (2) between the compressor
and the mounting flange. Secure the compressor
to the mounting flange with the hardware (3, 4 and
33). Reinstall the guard (22) and secure it with the
hardware (23, 24 and 25).
Reinstall the drive coupling on the impeller shaft.
Using a suitable lifting device, position the pedes­
tal assembly on the base and secure it with the pre­
viously removed hardware. Align the coupling as
described in Installation, Section B.
Seal Reassembly and Installation
(Figures 3 and 8)
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.