Gorman-Rupp Pumps PA6C60C-F4L 1504811 and up - Manual (Page 45)

OM-05768 PA SERIES
MAINTENANCE & REPAIR PAGE E - 23
NOTE
To ease installation, lightly lubricate the rubber por­
tion of the coupling with a non‐petroleum based
lubricant such as vegetable oil or glycerin, or a sili­
con‐based lubricant such as “WD40” or equivalent.
Do not use petroleum‐based lubricants, or any oth­
er substance which may soften or otherwise dam­
age the rubber.
Install the intermediate guards (25, Figure 5), and
secure the mounting flange to the engine bellhous­
ing with the previously removed hardware (8 and
9).
(Figure 3)
Use a suitable hoist and sling to position the air
compressor assembly (6) on the mounting flange
(9, Figure 5). Slide the synchronous belt (15) over
the air compressor drive sheave. Use a pry bar to
raise the compressor high enough to install the
spacers (14) between the compressor and the
mounting flange. Secure the compressor to the
mounting flange with the hardware (8, 9 and 10).
Reinstall the guard (7) and secure it with the hard­
ware (11, 12 and 13).
Seal Reassembly and Installation
(Figures 5 and 11)
Most cleaning solvents are toxic and
flammable. Use them only in a well ven­
tilated area free from excessive heat,
sparks, and flame. Read and follow all
precautions printed on solvent contain­
ers.
Clean the seal cavity and shaft with a cloth soaked
in fresh cleaning solvent. Inspect the stationary
seat bore in the seal plate for dirt, nicks and burrs,
and remove any that exist. The stationary seat bore
must be completely clean before installing the
seal.
A new seal assembly should be installed
any time the old seal is removed from the
pump. Wear patterns on the finished faces
cannot be realigned during reassembly.
Reusing an old seal could result in prema­
ture failure.
The seal is not normally reused because wear pat­
terns on the finished faces cannot be realigned
during reassembly. This could result in premature
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 shaft sleeve, or replace it
if there are nicks or cuts on either end. If any com­
ponents 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 shaft
sleeve O‐ring and the external stationary seat O‐
ring with a very small amount of light lubricating oil.
See Figure 10 for seal part identification.