Gorman-Rupp Pumps 16C20-F4L 1317844 and up - Manual (Page 35)

OM-01604 10 SERIES
MAINTENANCE & REPAIR PAGE E - 13
SEAL PLATE
O‐RINGS
IMPELLER
OIL SEAL
STATIONARY SEAT
STATIONARY ELEMENT ROTATING ELEMENT
BELLOWS
IMPELLER
SHIMS
IMPELLER
SPRING
RETAINER
SHAFT
SHAFT SLEEVE
DRIVE BAND
BOTTLE
OILER
AIR VENT
SPRING
HOLDER
DRAIN PLUG
Figure 5. 12461 Seal Assembly
This seal is not designed for operation at
temperatures above 160
_F (71_C). Do not
use at higher operating temperatures.
Inspect the seal plate (54) and the impeller shaft
(47) for burrs or sharp corners, and remove any
that exist. Install the oil seal (22) in the bore of the
seal plate as shown in Figure 2. Make sure the oil
seal is fully seated.
Position the seal plate against the intermediate. Be
careful not to damage the oil seal lip on the shaft
threads. Align the bottle oiler hole with the opening
in the intermediate, and temporarily secure the
seal plate to the intermediate with two capscrews
and nuts (1/2 UNC by 1-1/2 inch long, not
supplied).
Assemble the O‐rings into the stationary seat.
Press the stationary seat into the seal plate bore
until fully seated. A push tube cut from a length of
plastic pipe would aid this installation. The I.D. of
the tube should be approximately the same as the
I.D. of the seal spring.
Subassemble the rotating element into the rotating
portion of the seal assembly with the chamfered
side facing out. Slide the rotating portion of the seal
assembly onto the shaft sleeve (33) with the rotat­
ing element facing the chamfered end of the
sleeve. Slide the sleeve onto the shaft until the seal
elements contact and the sleeve bottoms against
the shaft shoulder. Be careful not to roll or damage
the lip of the seal plate oil seal (22).
Install the seal spring and spring holder.
Reinstall the bottle oiler and piping (34, 35 and 36)
and the air vent and piping (17, 18 and 19).
Lubricate the seal as indicated in LUBRICATION,
after the impeller has been installed.
Impeller Installation And Adjustment
(Figure 2)
Inspect the impeller, and replace it if cracked or
badly worn.