OM-05498
SUPER T SERIES
MAINTENANCE & REPAIR
PAGE E - 8
use them to press the rotating assembly into the
pump casing until the bearing housing is free.
Remove the jacking screws from the casing ring.
Remove the outer hardware (8 and 35) and shims
(34) and separate the casing ring from the pump
casing. Tie and tag the shim sets for ease of reas
sembly.
An optional disassembly tool for removing and in
stalling the rotating assembly is available from the
factory. If the tool is used, follow the instructions
packed with it. If improvised tools are used, be sure
they are heavy enough for safe use and will not
damage the pump.
After the rotating assembly is loosened, screw a
5/8-18 UNF X 16‐inch long threaded rod into the
impeller shaft. Support the drive end with another
set of handles or a length of pipe (1-13/16 inch [46
mm] minimum I.D.) and slide the complete rotating
assembly through the back cover opening (see
Figure 4). Move the rotating assembly to a clean
work area before proceeding with disassembly.
ADD PIPE
AS REQUIRED
Figure 4. Rotating Assembly Removal
Remove the seal plate and bearing housing O‐
rings (38).
Impeller Removal
(Figure 2)
With the rotating assembly removed from the
pump casing, unscrew the impeller from the shaft.
Use caution when unscrewing the impeller; ten
sion on the shaft seal spring will be released as the
impeller is removed. Inspect the impeller and re
place if cracked or badly worn.
Remove the impeller adjusting shims (3); tie and
tag the shims, or measure and record their thick
ness for ease of reassembly.
Seal Removal
(Figure 2)
Slide the shaft sleeve and rotating portion of the
seal off the shaft as a unit.
Use a pair of stiff wires with hooked ends to remove
the stationary element and seat.
An alternate method of removing the stationary
seal components is to remove the hardware (15
and 16) and separate the seal plate (5) and gasket
(6) from the bearing housing (9). Position the seal
plate on a flat surface with the impeller side down.
Use a wooden dowel or other suitable tool to press
on the back side of the stationary seat until the
seat, O‐rings, and stationary element can be re
moved.
If no further disassembly is required, refer to
Seal
Installation
.
