Gorman-Rupp Pumps PA6C60C-F5L All serial numbers - Manual (Page 43)

OM-05770 PA SERIES
MAINTENANCE & REPAIR PAGE E - 21
oil and the container must be absolutely clean. If
the oil has been previously used, it must be thor­
oughly filtered.
Heat the bearings to a uniform temperature no
higher than 250
_
F (120
_
C) and slide the bearings
onto the shaft, one at a time, until they are fully
seated. This should be done quickly, in one con­
tinuous motion, to prevent the bearings from cool­
ing and sticking on the shaft.
NOTE
Position the outboard bearing (8) on the shaft with
the integral O.D. retaining ring positioned toward
the drive end of the shaft.
After the bearings have been installed and allowed
to cool, check to ensure that they have not moved
away from the shaft shoulders in shrinking. If
movement has occurred, use a suitably sized
sleeve and a press to reposition the bearings
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.
Install the thrust washer (13) and secure the out­
board bearing (8) to the shaft with the snap ring
(12).
Apply a light coating of oil to the lip of the oil seal
(17) and press it into the bearing housing bore with
the lip positioned as shown in Figure 5. Press the
oil seal into the housing until the face is just flush
with the machined surface on the housing.
Slide the shaft and assembled bearings into the
bearing housing until the retaining ring on the out­
board bearing seats against the bearing housing.
Use caution not to damage the lip of the oil seal
(17) on the shaft threads.
When installing the shaft and bearings into
the bearing bore, push against the outer
race. Never hit the balls or ball cage.
Apply a light coating of oil to the lip of the oil seal
(11) and press it into the mounting flange (9) with
the lip positioned as shown in Figure 5. The face of
the oil seal should be just flush with theouter face of
the mounting flange.
Install the drive flange gasket (16). Apply “Loctite
Threadlocker No. 242” or equivalent compound on
the threads of the capscrews (14). Install the lock­
washers (14) and secure the drive flange to the
bearing housing by torquing the capscrews to 40
ft. lbs. (480 in. lbs. or 5,5 m. kg.). Be careful not to
damage the lip of the oil seal (11) on the shaft key­
way.
Lubricate a new bearing housing O‐ring (37) with
grease and install it in the groove in the bearing
housing.
Lubricate the bearings as indicated in LUBRICA­
TION at the end of this section.
Securing Bearing Housing And Drive Assembly
To Engine
(Figure 4)
Install the key (30 Figure 5) in the shaft keyway,
making sure to leave room in the keyway for the
drive key (31, Figure 5). Install the bushing (10) and
sheave (11) on the shaft to the dimension shown in
Figure 10.