Tuthill KLRC Series, Руководство оператора

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24
08
Reassembly
Manual 4804 Rev C p/n 004804 0000
4. Place the DE end casing/plate assembly on top
of the impeller housing with tie-rods entering
the bolt holes and align index marks. Assemble
washers and nuts to tie-rods and lightly tighten
them.
5. To ensure correct alignment of the feet of both
end casings, an alignment bar as shown in
Figure 8-3 on page 28 can be bolted to the
end casing feet to get correct radial alignment.
Then loosen one bolt lightly and tighten the tie-
rod nuts as in step 5 in
NDE Stage on page
23 .
6. The sealant
À
uid supply pipe elbow must be
installed if it was removed.
DE Shaft Seal and Bearing Housing
1. If the lip (oil) seal is damaged during the
disassembly process, replace it at this time
using the proper tooling.
2. Install shaft seal spacer washer on the shaft
against the impeller nut for use with the John
Crane shaft seal, standard in cast-iron pumps
(Kinney version FA and BA). No spacer is used
with Flowserve shaft seal, standard in stainless
steel pumps (Kinney version CD) or optionally
in cast-iron pumps; for example, FD2 models.
3. Remove carbon from seal head, Kinney
style “A” only (John Crane Type 21) and
push seal elastomer boot onto a very lightly
greased (vacuum grease) shaft against the
washer, then reinstall carbon with proper
notch alignment. When installing Kinney style
“D” (Flowserve type RO), ensure that the
drive dowel pin is aligned with and enters the
clearance hole in the impeller locknut.
4. Install the shaft seal seat, with lightly greased
(vacuum grease) seal element and lapped
surface facing out, into the DE bearing housing
(with attached pump nameplate). Place O-ring
into bearing housing
À
ange groove. Insert
À
inger into housing gap, and install both on
shaft and against end housing, ensuring proper
seating. The shaft seal spring compression will
give some resistance. Install bolts with lock
washers.
5. Install bearing spacer washer on shaft. Washer
thickness is stamped on the front of the DE
bearing housing. For example, 57 would
indicate 0.057" thick bearing washer. Install
the double-row ball bearing on shaft and into
housing using proper tooling. Install bearing
locknut with spanner wrench, while holding
shaft with another spanner wrench in the drive
keyway, until hand-tight. Then hammer-tap
until solid resistance is felt. Install DE bearing
cap with lock washers and screws.
OTE: N On a typical KLRC repair, the factory shim
setting should be reused. In the event that
the shim is damaged, a shim of the same
size can be ordered from the factory. (See
Clearance Check and Adjustment on page
25.)
NDE Assembly Preparation
Invert the pump assembly on the assembly stand.
Remove the temporarily installed bearing housing,
bearing cap, and dummy or ball bearing.
OTE: N If continuing with a complete
reassembly, skip to NDE Shaft Seal and
Bearing Housing on page 25. If only
reassembling the NDE side, see Center
Housing and NDE Stage on page 24.
Center Housing and NDE Stage
1. If the center housing and DE impeller housing
were removed, follow assembly steps 2
through 5 in
DE Stage on page 23 to
reinstall.
2. If the NDE impeller was removed from shaft,
reassemble as in step 1 in NDE Impeller/Shaft
on page 23 .
3. Position the NDE impeller housing for correct
match with center housing and DE impeller
housing. Then apply sealing compound to the
matching end and install with a slight rotating
movement while aligning the cast-in index
marks. Note: If the unit is stainless steel, use
PTFE glass-
¿
lled gaskets in lieu of sealant.
4. If the NDE end plate was removed from the
NDE end casing, reassemble it as in step 1 in
NDE Stage on page 23 .