Flowserve Type R - Manual (Page 46)

R and RX SLURRY Pump USER INSTRUCTIONS ENGLISH 71569242 03-11 (E)
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e) Manually rotate the shaft to ensure that there is no
rubbing or binding.
f) On belt driven units, adjust the pump or driver
sheave to maintain belt alignment.
6.12 Liner Mismatch
When two liners come together some mismatch is
expected.
6.12.1 Axial Split
a) Mismatch along this axial split between the liner
halves is acceptable and no rework is necessary.
This mismatch is parallel to the flow and will not
cause hydraulic or mechanical problems.
b) On pumps with 8” or larger the compressed lip out
side the casing in the area of the spacers should
be relatively aligned within 10mm (0.38in.). If both
lips are not visible the casings should be
separated and liners reseated.
6.12.2 Discharge Flange
a) Some mismatch can be tolerated. The harder the
rubber the less mismatch that can be permitted.
b) Generally if the mismatch exceeds 1.5mm
(0.06in.) then the joint should be dressed.
SUCTION SIDE CASING-1C GLAND SIDE CASING - 1D
SUCTION SIDE LINER-221
GLAND SIDE LINER-223
LINER HALVES MUST NOT BE
MISMATCHED BY MORE THEN 0.06”
(1.5mm), IF NECESSARY RUBBER MUST BE
CAREFULLY BUFFED.
CAUTION: HEAT CAUSED BY CARELESS BUFFING WILL DESTROY
RUBBER AND MAKE IT GUMMY.