Gorman-Rupp Pumps 11 1/2A2-B 347543 and up - Manual (Page 32)

OM-00558 10 SERIES
MAINTENANCE & REPAIR PAGE E - 9
IMPELLER
SHAFT
STATIONARY
ELEMENT
STATIONARY
WASHER
ROTATING
ELEMENT
IMPELLER
SHIMS
ROTATING
ELEMENT
SEAL PLATE
SPRING
IMPELLER
SHAFT
SLEEVE
PACKING RINGS
STATIONARY
ELEMENT
SEAL LINER
Figure 3. Seal Assembly
This seal is not designed for operation at
temperatures above 110
_F (43_C). Do not
use at higher operating temperatures.
Before installing the seal, inspect the bore of the
seal liner (24) for wear or grooves which might
cause leakage or damage to the seal packing
rings. If the seal liner requires replacement, re­
move the seal plate assembly as described in Seal
Removal And Disassembly, and position it on the
bed of an arbor (or hydraulic) press. Use a new
sleeve to force the old one out. After the new liner is
properly installed, a 1/4‐inch (6,4 mm) diameter
hole must be drilled through it to permit the flow of
lubricant to the seal assembly. Be careful to center
the drill in the threaded grease piping hole and not
damage the threads. Deburr the hole from the in­
side of the seal liner after drilling.
Slide the seal plate assembly over the impeller
shaft (23) and temporarily secure the seal plate to
the pedestal (26) using two capscrews and nuts
(3/8-16 UNC x 1-1/2 inch long, not supplied).
Slide the inboard rotating element into the lubri­
cated seal liner with the chamfered side toward the
shaft shoulder.
Subassemble the inboard stationary element,
packing ring and stationary washer. Press this unit
into the lubricated seal liner until the seal faces
contact. 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 size as the I.D.
of the seal spring.
Slide the spacer sleeve onto the shaft until it seats
against the inboard rotating element and install the
seal spring.
Subassemble the outboard stationary element,
packing ring and stationary washer. Press this unit
into the lubricated seal liner. Install the outboard ro­
tating element with the chamfered side toward the
impeller.