OM-02816
VG SERIES
MAINTENANCE & REPAIR
PAGE E - 9
until both are fully seated. Install the impeller nut
(48).
Install the seal plate gasket (5). Slide the pump
casing (1) over the impeller and secure it to the seal
plate with the nuts (12).
Replace any leveling shims used under the casing
mounting feet and install the hardware securing
the casing and bearing housing foot to the base.
Remove the wood block supporting the bearing
housing.
Final Pump Assembly
Be sure
the pump is secure to the base and power
source.
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 and power source have been
properly lubricated, see
LUBRICATION
.
Fill the pump casing with clean liquid. Reinstall the
fill plug (51) and tighten it. Refer to
OPERATION
,
Section C, before putting the pump back into serv
ice.
LUBRICATION
Seal Assembly
The seal assembly is lubricated by the medium be
ing pumped and no additional lubrication is re
quired.
Bearings
The bearing housing was fully lubricated when
shipped from the factory. Check the oil level regu
larly through the sight gauge (38)
and maintain it at
the middle of the gauge. When lubrication is re
quired, add SAE No. 30 non‐detergent
oil through
the oil inlet plug opening (25).
Do not
over‐lubri
cate. Over‐lubrication can cause the bearings to
over‐heat, resulting in premature bearing failure.
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 or a
lubricant supplier for the recommended grade of
oil.
Power Source
Consult the literature supplied with the power
source, or contact your local power source repre
sentative.
