Gorman-Rupp Pumps 86A2-F3L 1257390 thru 1330588 - Manual (Page 35)

80 SERIES OM--00955
MAINTENANCE & REPAIR PAGE E -- 14
(Figure 2)
Before starting the pump, remove the fill plug as-
sembly (12) and fill the pump casing with clean liq-
uid. Reinstall the fill plug and tighten. (see
OPERA-
TION, Section C).
LUBRICATION
Seal Assembly
(Figure 2)
Fill the grease cup (18) through the grease fitting
with No. 2 lithium base grease until grease es-
capes from the relief hole. Turn the grease cup arm
counterclockwise until it is at the top of the stem;
this will release the spring to apply grease to the
seal (see Figure 5).
GREASE
FITTING
CROSS
ARM
POSITION
WHEN
EMPTY
POSITION
FOR
FILLING
POSITION
WHEN
IN USE
RELIEF
HOLE
NOTE:
When installing a new grease cup, lubricate
the cup as indicated on the installation tag
furnished with the grease cup.
Figure 5. Automatic Lubricating Grease Cup
Bearings
(Figure 2)
The intermediate was fully lubricated when
shipped from the factory. Under normal conditions,
turn the cap on the grease cup (20) three complete
turns to add No. 0 lithium base grease to the inter-
mediate after each 250 hours of operation or once
each month, whichever comes first.
Do not over-
lubricate. Over-lubrication can cause the bearings
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 interme-
diate 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 (overhauled) intermediate,
fill the cavity through the grease cup with approxi-