Tuthill KLRC Series, Operator'S Manual

Page: 31 / 50

25
08
Reassembly
Manual 4804 Rev C p/n 004804 0000
5. Place the NDE end casing/plate assembly
on top of the impeller housing with tie-rods
entering the bolt holes and align the index
marks. Assemble washers and nuts to tie-rods
and lightly tighten them.
6. For alignment of feet and tie-rod torque nuts,
follow step 5 in NDE Stage on page 23 and
5 in DE Stage on page 23 .
NDE Shaft Seal and Bearing Housing
1. For shaft seal spacer washers, follow step 2
in DE Shaft Seal and Bearing Housing on
page 24 .
2. For seal head assembly, follow step 3 in DE
Shaft Seal and Bearing Housing on page
24
.
3. For NDE bearing housing assembly, follow
step 4 in DE Shaft Seal and Bearing Housing
on page 24 .
4. Install the single-row ball bearing on shaft and
seat into bearing housing. To avoid relative
displacement of inner and outer bearing races
with slight interference
¿
t, use a bearing driver
as shown in Figure 8-2 on page 27 . Then
install NDE bearing cap with lock washers and
screws.
Crossover Pipe
Assemble crossover pipe,with gaskets to both end
casings, facing the drive end to the left DE end
casing
À
ange, and the diagonal NDE end casing
À
ange. Within the available play of the studs in the
À
ange holes, match the
À
ange outside diameters
as best as possible.
Clearance Check and Adjustment
If replacement of casings or housings (end, center,
or bearing) occurs during the repair of a KLRC
pump, recheck shim thickness. Included in the
KLRC repair kits is one shim of the largest size.
This can be ground to the dimension to achieve the
same result. Dummy bearings will be required to
accomplish this task. The dummy bearings should
be made based on the dimensions of the bearings
supplied for the pump model less 0.002" in OD
and increased by 0.002" in ID. Mild steel or an
equivalent material is acceptable for this. It may be
advantageous to provide threaded holes to aid in
removal of the dummy bearing.
OTE: N If a shim change is required on a “hot
pump” or stainless steel pump, contact
the factory for further information.
The required shim dimension can be found as
follows:
1. Move the shaft of the assembled pump fully
toward the NDE of the pump.
2. With the bearing cap removed and using a
depth micrometer, measure to the dummy
bearing from the bearing housing surface.
Record the reading. With the assistance of a
gear puller, push the shaft completely toward
the DE of the pump.
3. Using a depth micrometer, measure to the
dummy bearing and record the reading.
4. Subtract the smaller reading from the larger.
This number is the total clearance of the pump.
5. The shim size is one-half of the total clearance
within the pump.