Gorman-Rupp Pumps 03C51-B 1341129 and up - Manual (Page 28)

OM-01141 0 SERIES
MAINTENANCE & REPAIR PAGE E - 9
Vane Plate and Pump Casing Installation
Clean the mating surfaces between the vane plate
and seal plate to remove all of the old adhesive
sealant. Apply a thin film of “3M Adhesive No. 847”
or equivalent compound to the face of the vane
plate and secure the vane plate to the seal plate
with the previously removed hardware (32 and 33).
Lubricate a new seal ring (28) and install it on the
volute shoulder.
Remove the two capscrews and nuts used to tem­
porarily secure the seal plate to the pedestal.
Install the casing gasket (5) and secure the casing
to the seal plate and pedestal with the nuts (23).
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 (29) 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. Under normal conditions, remove
the vented plug (8) and add No. 0 lithium based
grease from a grease gun through the hole for the
plug after each 250 hours of operation or once
each month, whichever comes first. Do not over‐
lubricate. Over‐lubrication can cause the bearing
to over‐heat, resulting in premature bearing failure.
If grease is forced out around the shaft as
new grease is added, the bearing cavity is
full and should be disassembled and
cleaned immediately.
There are no provisions in the bearing cavity to
drain or flush the lubricant. The pump and pedestal
must be disassembled to completely clean and
maintain this cavity.
Under normal conditions, change the grease after
each 5000 hours of operation, or at 12 month inter­
vals, whichever comes first. Change the grease
more frequently if the pump is operated continu­
ously or installed in an environment where variable
hot and cold temperatures are common.
When lubricating a dry pedestal, fill the cavity
through the vented plug hole with approximately
1/3 lb. (0.15 kg.) of grease. Reinstall the vent plug.
For cold weather operation, consult the factory or a
lubricant supplier for the recommended grade of
lubricant.