Gorman-Rupp Pumps 14C20-4024T 1303140 and up - Manual (Page 37)

OM−05781 10 SERIES
MAINTENANCE & REPAIR PAGE E − 15
plate must be concentric to prevent binding when
the back cover is installed.
Clean any scale or debris from the contacting sur-
faces in the pump casing that might interfere or
prevent a good seal with the back cover. Replace
the back cover gasket (55), and slide the back
cover assembly into the pump casing. Be sure the
wear plate does not bind against the impeller.
NOTE
To ease future disassembly, apply a film of grease
or ‘Never-Seez’ on the back cover shoulder, or any
surface which contacts the pump casing. This ac-
tion will reduce rust and scale build-up.
Secure the back cover assembly by tightening the
cover clamp screw (47) against the clamp bar (46).
Do not over-tighten the clamp screw; it should be
just tight enough to ensure a good seal at the back
cover shoulder.
Final Pump Assembly
(Figure E−1)
Install any leveling shims used under the pump
casing mounting feet and secure the casing (1) to
the base (48) with the hardware (49, 50, 51 and 52).
Be sure the pump is secured to the base and en-
gine.
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 end and engine have been
properly lubricated, see LUBRICATION.
Remove the fill cover assembly (68, Figure E−2)
and fill the pump casing with clean liquid. Reinstall
the fill cover plate and tighten it.
Refer to OPERATION, Section C, and start the
pump.
LUBRICATION
Seal Assembly
(Figure E−2)
Fill the bottle oiler (13) with SAE No. 30 non-deterg-
ent motor oil. Check the oil level regularly and keep
the bottle oiler full.
Bearings
(Figure E−2)
The intermediate was fully lubricated when
shipped from the factory. Check the oil level regu-
larly through the sight gauge (31),
and maintain it at
the middle of the gauge. When lubrication is re-
quired, add SAE No. 30 non-detergent oil through
the hole for the air vent (17). Do not over-lubricate.
Over-lubrication can cause the bearings to over-
heat, resulting 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 intermediate
once each year and refill with approximately 4
ounces (118 mL) of clean oil. Change the oil more
frequently if the pump is operated continuously 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.
Engine
Consult the literature supplied with the engine, or
contact your local engine representative.