Flowserve MP1 Sier-Bath - Manual (Page 32)

MP1 USER INSTRUCTIONS ENGLISH 26999958 – 10-12
Page 32 of 48 flowserve.com
j) Vertically lift up pump by the inner casing [1110.1]
and re-torque locking ring bolts to 20 ft·lbs.
k) Put casing assembly back on its feet.
l)
Insert suction spool piece [1800.1] fitted with o-
rings [4610.5 & 4610.6] into pump suction. Bolt it
down with fasteners [6579.1].
6.12 Re-assembly
Care must be taken during the
assembly operation to avoid contamination of the
parts with dirt, dust or other foreign matter.
The numbers besides each part name are referenced
to the typical sectional drawing furnished in Section 8
PARTS LIST AND DRAWINGS of this manual. If the
pump has additional parts specifically required for your
application, and they are not shown on this typical
sectional drawing, the specific sectional drawing for
your application can be requested from the factory.
a) Inspect all new parts. Remove all nicks and burrs
which may have occurred in handling. Make sure
the inner races of the radial bearings [3012.1]
and of the timing gear bearings [3012.2], and the
speedi sleeves [2450.1 and 2450.2] are already
mounted on the shafts.
b) Intermesh the drive shaft [2120.1] and the driven
shaft [2140.1] together, taking care to line up the
ends of the pumping screws. Carefully slide the
shaft assembly into the pump body with the
assistance of slings, paying attention to minimize
or avoid strong contact or rub between the screws
and the inner casing bores. Eventual but light
contact should not damage any component.
c) Mount a new o-ring type gasket [4610.3] on the
NDE seal housing [4110.1] groove. Use plain
grease to facilitate keeping it in place while the
seal housing is mounted and fastened to the inner
casing [1110.1].
d) Attach the NDE seal housing [4110.1] to pump
inner casing [1110.1], using dowel pins [6585.1] to
properly set it up in the right place.
e) Mount mechanical seals [4200.1 and 4200.2] to
the NDE seal housing [4110.1].
f) Mount the NDE bearing housing [3459.1] fitted
with snap rings [2110.1], radial bearings [3012.1]
outer
races, cages and rolling elements
assemblies only, along with lip seals [4300.2] in
place; the inner races of the bearings must be
mounted on the shafts. For this assembly
operation use the dowel pins [6585.1] protruding
from the seal housing [4110.1] to line up the
bearing housing [3459.1]. Use NDE fasteners
[6572.5], tightening them with the fingers only; do
not torque these fasteners yet. Note the top mark
on the bearing housing [3459.1], so that it will be
replaced in the original position as assembled in
the factory.
Note: DE and NDE bearing housings are very
similar, but they might have been re-doweled to a
different position from previous dis-assemblies or
repairs. Care must be taken to avoid interchanging
them to avoid dowelling problems.
g) Mount a new o-ring type gasket [4610.3] on the
DE seal housing [4110.1] groove. Use plain
grease to facilitate keeping it in place while the
seal housing is mounted and fastened to the inner
casing [1110.1].
h) Attach the DE seal housing [4110.1] to pump inner
casing [1110.1], using dowel pin [6585.1] to
properly set it up in the right place.
i) Mount the DE bearing housing [3459.1] ] fitted with
snap rings [2110.1], radial bearings [3012.1] outer
races, cages and rolling elements assemblies
only, along with oil seals [4300.2] in place; the
inner races of the bearings must be mounted on
the shafts. For this assembly operation use the
dowel pins [6585.1] protruding from the seal
housing [4110.1] to line up the bearing housing
[3459.1]. Use DE fasteners [6572.5], tightening
them with the fingers only; do not torque these
fasteners yet. Note the top mark on the bearing
housing [3459.1], so that it will be replaced in the
original position as assembled in the factory.
Note: DE and NDE bearing housings are very
similar, but they might have been re-doweled to a
different position from previous disassemblies or
repairs. Care must be taken to avoid interchanging
them to avoid dowelling problems.
j) Make sure the dowel pins [6585.1] are properly
inserted in the dowel pin holes of the NDE and DE
seal housings [4110.1] and bearing housings
[3459.1]; adjust as needed.
k) Tighten all capscrews and nuts fastening the DE
and NDE seal housings [4110.1] and bearing
housings [3459.1] to the inner casing [1110.1]. The
pump should now turn freely. If pump does not
turn freely, refer to section 6.13 [Free Movement].
l) Mount timing gears [2300.1 & 2300.2] onto the
shafts in the exact location from which they were
removed. Note then, when timing gears are
installed correctly, original punch marks on teeth
will line up per Figure 8. Lock the timing gears
against the shaft shoulder with the superbolt nut
[6580.1].
m) Mount a new flange gasket [4510.1] on the gear
housing [1600.1] next to be assembled, to seal the