OM-06667
SUPER T SERIES
MAINTENANCE & REPAIR
PAGE E - 13
Slide the rotating portion of the seal (consisting of
the integral shaft sleeve, spring centering washer,
spring, bellows and retainer, and rotating element)
onto the shaft until the seal faces contact.
Proceed with
Impeller Installation and Adjust
ment
.
Impeller Installation and Adjustment
(Figure 2)
Inspect the impeller and replace it if cracked or
badly worn. Inspect the impeller and shaft threads
for dirt or damage, and clean or dress the threads
as required.
The shaft and impeller threads
must
be
completely clean before reinstalling the im
peller. Even the slightest amount of dirt on
the threads can cause the impeller to seize
to the shaft, making future removal difficult
or impossible without damage to the im
peller or shaft.
Install the same thickness of impeller adjusting
shims (3) as previously removed. Apply `Never‐
Seez' or equivalent to the shaft threads and screw
the impeller onto the shaft until tight.
NOTE
At the slightest sign of binding, immediately back
the impeller off, and check the threads for dirt.
Do
not
try to force the impeller onto the shaft
.
A clearance of .025 to .040 inch (0,64 to 1,02 mm)
between the impeller and the seal plate is recom
mended for maximum pump efficiency. Measure
this clearance, and add or remove impeller adjust
ing shims as required.
NOTE
If the rotating assembly has been installed in the
pump casing, this clearance may be measured by
reaching through the priming port with a feeler
gauge.
Proceed with
Rotating Assembly Installation
be
fore installing the impeller capscrew and washer
(26 and 27). The rotating assembly must be in
stalled in the pump casing in order to torque the im
peller capscrew.
After the rotating assembly is installed in the pump
casing, coat the threads of the impeller capscrew
(26) with `Never‐Seez' or equivalent compound,
and install the impeller washer (27) and capscrew;
torque the capscrew to 90 ft. lbs. (1080 in. lbs. or
12,4 m. kg.).
Rotating Assembly Installation
(Figure 1)
NOTE
There is a 1‐1/2 inch diameter socket head pipe
plug (16, Figure 2) located in the side of the bearing
housing. This hole is required for manufacturing
purposes only; therefore the pipe plug should nev
er require removal.
Install the bearing housing O‐ring (9) and lubricate
it with light grease. Ease the rotating assembly into
the pump casing using the installation tool.
Be
careful
not to damage the O‐ring.
Install the same thickness of rotating assembly ad
justing shims (34) as previously removed, and se
cure the rotating assembly to the pump casing with
the hardware (11 and 33).
To set the impeller and wear plate clearance, refer
to the
Back Cover Installation and Adjustment
.
Suction Check Valve Installation
(Figure 1)
Inspect the check valve assembly (24) and replace
it if badly worn.
NOTE
The check valve assembly must be replaced as a
complete unit. Individual parts are not sold sepa
rately.
Reach through the back cover opening with the
check valve (24) and position the check valve
adaptor in the mounting slot in the suction flange
(21). Align the adaptor with the flange hole and se
cure the assembly with the check valve pin (22).
NOTE
If the suction or discharge flanges were removed,
