OM--05688
0 SERIES
MAINTENANCE & REPAIR
PAGE E -- 7
SEAL SPRING
SHAFT
KEY
IMPELLER
SHIMS
IMPELLER
RETAINER
O-RING
STATIONARY
SEAT
IMPELLER
SHAFT
PUMP CASING
BELLOWS
ROTATING
ELEMENT
Figure 2. 25271--192 Seal Assembly
This seal is not designed for operation at
temperatures above 160
_
F (71
_
C). Do not
use at higher operating temperatures.
Inspect the pinion shaft (45) for distortion, nicks,
scratches, or damage to the shaft keyway. Dress
small nicks or burrs with a fine file or emery cloth. If
excessive wear exists or the shaft is defective, refer
to
GEARBOX DISASSEMBLY
and replace the
shaft.
Lubricate the stationary seat O-ring with light oil
and install it in the groove in the stationary seat.
Use thumb pressure to press this subassembly
into the pump casing until fully seated. Be careful
not to damage the seal face. After installation, wipe
the seal face in a concentric pattern with a clean,
lint-free cloth to remove any fingerprints.
NOTE
It is recommended that a tapered sleeve (see Fig-
ure 3) be installed over the shaft keyway to ease in-
stallation of the rotating portion of the seal. This tool
can be made from steel tubing or black pipe.
