Gorman-Rupp Pumps 810A2-4045T 1529947 and up - Manual (Page 30)

80 SERIES OM-06543
MAINTENANCE & REPAIR PAGE E - 10
ment is required. To remove the the drive plate as­
sembly, remove the hardware (27 and 28) securing
it to the flywheel.
Shaft And Bearing Removal And Disassembly
(Figure 3)
When the pump is properly operated and main­
tained, the shaft and bearings should not require
disassembly. Disassemble the shaft and bearings
only when there is evidence of wear or damage.
Shaft and bearing disassembly in the field
is not recommended. These operations
should be performed only in a properly‐
equipped shop by qualified personnel.
Before attempting to disassemble the intermedi­
ate, remove the drain plug (32) and drain the oil
from intermediate. Clean and reinstall the drain
plug.
Remove the hardware (23) and separate the bear­
ing cap (24) and bearing gasket set (22) from the
intermediate. Remove the wavy washer (29). Press
the oil seal (30) from the bearing cap.
Place a block of wood against the impeller end of
the shaft (25) and tap the shaft and assembled
bearings out of the intermediate. Be careful not to
damage the shaft.
After removing the shaft and bearing, clean and in­
spect the bearings in place as follows.
To prevent damage during removal from
the shaft, it is recommended that bearings
be cleaned and inspected in place. It is
strongly recommended that the bearings
be replaced any time the shaft and bear­
ings are removed.
If replace is required, use a bearing puller to re­
move the bearings (31 and 33) from the impeller
shaft.
Press the oil seal (34) from the intermediate.
Shaft and Bearing Reassembly And Installation
(Figure 3)
Clean and inspect the bearings as indicated in
Shaft and Bearing Removal and Disassembly.
To prevent damage during removal from
the shaft, it is recommended that bearings
be cleaned and inspected in place. It is
strongly recommended that the bearings
be replaced any time the shaft and bear­
ings are removed.
The bearings may be heated to ease installation.
An induction heater, hot oil bath, electric oven, or
hot plate may be used to heat the bearings. Bear­
ings should never be heated with a direct flame or
directly on a hot plate.
NOTE
If a hot oil bath is used to heat the bearings, both the
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.
Use caution when handling hot bear­
ings to prevent burns.
NOTE
Position the inboard bearing (33) on the shaft as in­
dicated by the following illustrations.