Gorman-Rupp Pumps 66B2-B 370671 and up - Manual (Page 30)

60 SERIES OM−01454
MAINTENANCE & REPAIR PAGE E − 8
failure. If necessary to reuse an old seal in an emer-
gency, carefully wash all metallic parts in fresh
cleaning solvent and allow to dry thoroughly.
Handle the seal parts with extreme care to prevent
damage. Be careful not to contaminate precision
finished faces; even fingerprints on the faces can
shorten seal life. If necessary, clean the faces with a
non-oil based solvent and a clean, lint-free tissue.
Wipe lightly in a concentric pattern to avoid
scratching the faces.
Inspect the seal components for wear, scoring,
grooves, and other damage that might cause leak-
age. Clean and polish the seal spacer sleeve, or re-
place it if there are nicks or cuts on either end. If any
components are worn, replace the complete seal;
never mix old and new seal parts.
If a replacement seal is being used, remove it from
the container and inspect the precision finished
faces to ensure that they are free of any foreign
matter.
To ease installation of the seal, lubricate the pack-
ing rings and spacer sleeve with water or a very
small amount of oil, and apply a drop of light lubri-
cating oil on the finished faces. Assemble the seal
as follows, (see Figure 3).
PUMP
CASING
LUBRICATION
CHANNEL
ROTATING
ELEMENTS
STATIONARY
SEATS
PACKING
RINGS
SPRING
IMPELLER
SHIMS
IMPELLER
SPACER
SLEEVE
PACKING
WASHERS
IMPELLER
SHAFT
SEAL
WASHER
IMPELLER
KEY
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 (40) for wear or grooves which might
cause leakage or damage to the seal packing
rings. If the seal liner requires replacement, posi-
tion the pump casing on the bed of an arbor (or hy-
draulic) 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 inside of the seal
liner after drilling.