Gorman-Rupp Pumps 06B3-B 806819 and up - Manual (Page 30)

0 SERIES OM-01224
MAINTENANCE & REPAIR PAGE E - 10
NOTE
After the impeller has been properly positioned,
check for free rotation. Correct any scraping bind­
ing before further reassembly.
Immobilize the impeller by inserting a bar between
the impeller vanes, being careful not to damage
the vanes. Secure the impeller with the hardware
(42 and 43). Remove the bar from the impeller va­
nes.
Pump Reassembly
If removed at disassembly, press the replacement
wear ring (36) into the pump casing until it seats
squarely against the shoulder bore.
The wear ring must seat squarely in the
casing bore or binding and/or excessive
wear will result.
Install the casing gasket (8) and secure the casing
to the seal plate and pedestal with the nuts (35).
Reinstall any leveling shims under the casing
mounting feet, and secure the casing to the base
with the previously removed hardware.
Final Pump Assembly
Be sure the pump and power source are securely
mounted to the base.
Install the suction and discharge lines and open all
valves. Make certain that all piping connections are
tight, properly supported and secure.
Be sure the pump, pedestal and power source
have been properly lubricated, see LUBRICA­
TION.
Fill the pump casing with clean liquid. Reinstall the
fill plug (49) and tighten it.
Refer to OPERATION, Section C, before putting
the pump back into service.
LUBRICATION
Seal Assembly
The seal assembly is lubricated by the medium be­
ing pumped and no additional lubrication is re­
quired.
Bearing
The pedestal was fully lubricated when shipped
from the factory. Check the oil level regularly
through the sight gauge (28)
and maintain it at the
middle of the gauge. When lubrication is required,
add SAE No. 30 non‐detergent
oil through the hole
for the air vent (16). Do not over‐lubricate. Over‐lu­
brication can cause the bearings to over‐heat, re­
sulting in premature bearing failure.
NOTE
The white reflector in the sight gauge must be posi­
tioned horizontally to provide proper drainage.
Under normal conditions, drain the bearing hous­
ing once each year and refill with clean oil. Change
the oil more frequently if the pump is operated con­
tinuously or installed in an environment with rapid
temperature change.
Monitor the condition of the bearing lubri­
cant regularly for evidence of rust or mois­
ture condensation. This is especially im­
portant in areas where variable hot and
cold temperatures are common.
For cold weather operation, consult the factory for
the recommended grade of oil.