Flowserve MJ Slurry - Manual (Page 30)

MJ SLURRY USER INSTRUCTIONS ENGLISH 71569294 - 02/08
Page 30 of 42
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b) Lightly lubricate the shaft [2110] at the line bearing
position. Install the line bearing [3011] on the shaft.
Use an induction heated or hot oil bath to first heat
the bearing [250
° F recommended], press the
bearing on shaft with the aid of a sleeve designed
to push the inner race only. Note that the bearing
must remain square to the shaft during assembly
and that the inner race must seat on the sleeve
[3400] shoulder.
c) Install retaining ring [2530].
d) Allow bearing to cool.
e) Protect the bearing by wrapping with a clean, lint
free cloth.
f) Pack the line bearing with grease if the bearings are
being grease lubricated.
6.10.2 Thrust Bearing
a) Install lipseal in thrust bearing housing [3240]
(Direct Drive units only).
b) Slip the housing [3240] over the end of the shaft
[2110] with the opening towards the drive end.
c) Install the angular contact bearings [3031] on the
shaft [2110] using the same procedure as described
in step 6.10.1 . The bearings are mounted back to
back as shown.
d) Slide the bearing lockwashers [6541] on the shaft
and fit the bearing locknut [3712]. Tighten the
locknut snugly and allow the bearings to cool.
Check the tightness and bend one tab on the
lockwasher into a slot in the locknut.
e) Protect the bearing by wrapping with a clean, lint
free cloth.
6.10.3 Packing the bearings
a) Pack thrust bearings with grease.
b) Pack the line bearing with grease.
c) Slide the thrust bearing housing [3240] over the
bearings [3031].
d) Carefully install the lip seal [4300.2] in the thrust
bearing cover [3260] by pressing it squarely into the
bore. The primary sealing lip [spring loaded] on
seal should be installed facing towards the
coupling.
e) Install the grease fitting on the tapped hole in the
thrust bearing cover[3260].
f) Assemble the cover [3260] over the shaft and fit to
the housing [3240]. Care must be taken to prevent
damage of the seal on the shaft.
g) Using capscrews and lockwashers, attach the thrust
bearing cover [3260] to the thrust bearing housing
[3240]. Lock the threads using Loctite 242 or
equivalent.
Tighten the capscrews evenly ensuring that the clamp
ring is not distorted and gap to the bearing housing is
even all around. Tighten in accordance with Table 6.6.
6.10.4 Frame assembly
a) Place the top plate on edge. Orientate the
discharge pipe slot vertically. Secure in place
with angle supports.
b) Lift the bearing cartridge [3130] (MVD units) or
the motor stool [3160] (Direct Drive units).
Secure in position.
c) Lift the shaft assembly and install into the
bearing frame or motor stool.
d) Orientate the thrust bearing housing adjusting lug
holes with those in the bearing frame or motor
stool.
e) Install the adjusting hardware. Set the thrust
bearing housing flange about 12mm (1/2in.) from
the mating face of the bearing frame or motor
stool.
f) Pack the top of the bearing and inside of the
bearing housing
The grease fitting in the thrust bearing
cover [3260] must align with one of the openings in
the motor stool.
g) Install the coupling key [6700] and tape to the shaft.
6.10.5 Line Bearing Cover-MVD units
h) Carefully install the lip seal [4300.1] in the line
bearing cover [3260.1] by pressing it squarely into
the bore. The primary sealing lip [spring loaded] on
seal should be installed facing away from the
bearing.
i) Pack the lower part of the bearing cavity with
grease.
j) Assemble the line bearing cover [3260.1] over the
shaft and squarely into the bearing frame bore.
Fasten to the bearing frame with capscrews,
washers and hex nuts. Tighten firmly, but not
excessively.
k) Lift and install the column pipe [1341] over the shaft
and to the motor stool or bearing frame.
6.10.6 Intermediate Bearings
a) Install the intermediate bearing (when appropriate)
into the bearing housing. There may be a light
press fit. Orientate the holes in the bearing 90
degrees to the flush hole in the bearing housing.
b) Secure in place with 2 radial screws.
c) Lift and install the intermediate bearing housing
over the shaft and into the column pipe locating fit.
Secure in place.
Orientate the shorter portion of the bearing
housing towards the top plate. The flush port should
be orientated offset to the left when looking towards
the top plate.
6.10.6.1 Intermediate Shaft Sleeve
a) The shaft sleeve has a loose fit to the shaft. Install
the sleeve using Loctite 680 and orientate the end of