Gorman-Rupp Pumps 810A2-F5L 1322933 and up User Manual

Page 30

OM−02396

80 SERIES

MAINTENANCE & REPAIR

PAGE E − 11

IMPELLER SHAFT

SEAL
LINER

IMPELLER

SHIMS

GREASE

CUP

PIPING

SPACER
SLEEVE

PACKING
RINGS

WASHER

STATIONARY

ROTATING
ELEMENTS

SPRING

SEAL SEATS

SEAL
PLATE

WASHER

SPRING

Figure 4. GS1500 Seal Assembly

This seal is not designed for operation at
temperatures above 110

_ F (43_C). Do

not use at higher operating temperatures.

Slide the inboard rotating element onto the shaft
until the chamfered side seats against the shaft
shoulder.

Subassemble the inboard stationary seat, packing
ring and spring washer. Press this subassembly
into the lubricated seal liner. A push tube cut from a
length of plastic pipe would aid this installation.
The O.D. of the pipe should be approximately the
same diameter as the O.D. of the seal spring.

Install the spacer sleeve and spring.

Subassemble the outboard stationary seat, pack-
ing ring and spring washer. Press this subassem-
bly into the lubricated seal liner.

Install the outboard rotating element with the
chamfered side facing the impeller.

Reinstall the automatic grease cup and piping (15,
16 and 17) in the seal plate. After the impeller has
been installed, lubricate the seal as indicated in
LUBRICATION.

Impeller Installation

(Figure 2)

Inspect the impeller (2), and replace it if cracked or
badly worn. Install the same thickness of impeller
shims (4) as previously removed and screw the im-
peller onto the shaft until tight.

The shaft and impeller threads must be
completely clean before reinstalling the im-
peller. Even the slightest amount of dirt on
the threads can cause the impeller to seize
to the shaft, making future removal difficult