Gorman-Rupp Pumps 112C60-B 782312 and up - Manual (Page 30)

10 SERIES OM-01829
MAINTENANCE & REPAIR PAGE E - 10
IMPELLER
SHAFT
GROOVED
PIN
IMPELLER
SHAFT
SLEEVE
RETAINER
ELEMENT
ROTATING
ELEMENT STATIONARY
SPRING
SEAL PLATE
SEAT
STATIONARY
SHAFT SLEEVE
O‐RINGS
O‐RINGS
BELLOWS
SPRING
WASHER
Figure E-3. 46512-062 Seal Assembly
This seal is not designed for operation at
temperatures above 160
_F (71_C). Do not
use at higher operating temperatures.
Lay the seal plate on a flat surface with the impeller
side down. Press the oil seal (6) into the seal plate
(57) with the lip positioned as shown in Figure
E-1.
Turn the seal plate over so the impeller side is up. If
removed, use a hammer and a drift pin to install the
grooved pin (27). Line up the slot in the stationary
seat with the grooved pin in the seal plate.
Press the stationary subassembly (consisting of
the stationary seat, O‐rings and stationary ele­
ment) into the seal plate until the stationary seat
bottoms against the seal plate bore. Be sure to line
up the groove pin with the slot in the stationary
seat.
Slide the seal plate onto the shaft and secure it to
the intermediate with the capscrews (11). Be care­
ful not to damage the oil seal lip on the shaft key­
way. Install the O‐ring on the shaft that seals the
shaft sleeve to the shaft shoulder.
Slide the rotating subassembly (consisting of the
rotating element, retainer and bellows) onto the lu­
bricated shaft sleeve until the rotating element is
just flush with the chamfered end of the shaft. Lu­
bricate and install the O‐ring in the I.D. of the sleeve
(28). Slide the sleeve and rotating subassembly
onto the shaft until the seal elements contact. Con­
tinue to push the sleeve through the seal until it bot­
toms against the shaft shoulder and O‐ring. Install
the seal spring and the spring centering washer
(26).
Reinstall the air vent and piping (12, 13 and 14),
and lubricate the seal assembly as indicated in
LUBRICATION, after the impeller has been in­
stalled.
Impeller Installation And Adjustment
Inspect the impeller, and replace it if cracked or
badly worn. Make certain that the seal compo­
nents are seated squarely on the shaft sleeve. Re­
install the impeller key (88). Add a uniform coat of