Flowserve Type R - Manual (Page 36)

R and RX SLURRY Pump USER INSTRUCTIONS ENGLISH 71569242 03-11 (E)
Page 36 of 56 flowserve.com
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a) On small pumps the impeller can be removed and
held by hand however, larger units will require that a
hoist be used to lift the impeller. Place a sling
through the impeller vanes.
b) Remove the impeller [2200].
6.8.1.3 Expeller Pumps Only
a) Place a sling around the expeller housing.
b) Remove
c-clamp
c) Remove expeller [2250].
d) Remove expeller wearplate [1915].
e) Remove stuffing box head [4100].
All pumps except expeller option
6.8.2 Stuffing
box
6.8.2.1 Shaft seal - gland packing
a) Remove gland nuts and gland halves [4120]
b) Remove gland packing rings [4130] and lantern
rings [4134] using a bent wire.
6.8.2.2 Shaft seal - mechanical seal

Refer to any special instructions supplied with
the mechanical seal.
a) Remove seal cover screws and pull off seal cover
complete with the stationary seal ring that is held in
place by the O-ring seal.
b) The mechanical seal cover can also be removed by
placing a wedge into the gland chamfer, as below:
6.8.3 Shaft sleeve
a) Remove the impeller spacer [2460] and shaft sleeve
gasket.
b) Remove the shaft sleeve [2445] if scored or worn.
6.8.4 Bearing housing
a) Remove the deflector [2540] and the line bearing
cover [3260].
b) Remove the pump half coupling and coupling key
[6700].
c) Remove the bearing frame support [3134] and
OHMM if applicable.
d) Lift the bearing frame assembly into a vertical
position with the thrust bearing housing [3230] up.
Rest the bearing frame flange on heavy wooden
blocks sufficiently high to ensure end of the shaft
does not come into contact with the floor or table.
e) Remove the thrust bearing hold down bolts and
remove shaft assembly for the bearing frame [3130].
6.8.5 Line bearing
a) Lay the shaft [2110] horizontal and support with
wooden ‘V’ Blocks.
b) Only if necessary remove the line bearing [3011]
from the shaft. Bearings removed can easily be
damaged and undetected until pump is put back in
operation.
6.8.6 Thrust bearings
a) Lay the shaft [2110] horizontal and support with
wooden ‘V’ Blocks.
b) Remove the thrust bearing clamp ring [2542] from
the thrust bearing housing [3230].
c) Remove the thrust bearing housing [3230].
d) Bend up the locking tab on the bearing lockwasher
[6541] and remove the bearing locknut [3712] and
lockwasher [6541].
e) Only if necessary remove the thrust bearings [3031]
from the shaft. Bearings removed and reused can
easily be damaged and undetected until pump is put
back in operation.
On frame 6 there are springs to preload the
thrust bearings. These must be removed as the
bearings are removed.
6.8.7 Gland side Liner (if necessary)
There are 2 sets of studs. The inner ring secures the
stuffing box to the casing and the outer ring secures
the liner to the casing. nuts and washers.
a) Place the gland side casing on a clean work
surface resting on the large flange.
b) Remove the inner ring of hex nuts that secure the
stuffing box [4132] to the casing [1212]
c) Remove the loose box from the casing.
d) Remove the Protector plate [4132] from the bore
of the casing.
e) Remove the outer ring of nuts that secure the
glandside liner [1916.2] to the glandside casing
[1D].
f) If necessary use wood blocks on the studs or
center portion to dislodge the liner.
g) Lift the casing away from the liner