Flowserve ME - Manual (Page 17)

ME USER INSTRUCTIONS ENGLISH 71576287 - 02/13
Page 17 of 36 flowserve.com
f) After grout starts to cure, definitively tighten
anchor bolts.
g) Control the alignment such as described as
follows.
4.4 Initial alignment
Before connecting the couplings
verify the motor rotation direction.
4.4.1 Thermal expansion
The pump and motor will normally
have to be aligned at ambient temperature and
should be corrected to allow for thermal expansion
at operating temperature. In pump installations
involving high liquid temperatures, the unit should be
run at the actual operating temperature, shut down
and the alignment checked immediately.
4.4.2 Alignment methods
Ensure pump and driver are isolated
electrically and the half couplings are disconnected.
Ensure that the pump pipework, suction and
discharge, is disconnected.
The alignment MUST be checked.
Although the pump will have been aligned at the
factory it is most likely that this alignment will have
been disturbed during transportation or handling. If
necessary, align the motor to the pump, not the
pump to the motor.
Alignment
Parallelism and concentricity check:
Check the alignment at three or four
points, before piping assembly.
with a rule with a comparator
Admissible margin for a motor with roller bearings
with European couplings:
= 0.15 mm parallel checking
= 0.1 mm angular checking
For US supplied couplings values to be used are:
= 0.02 in. parallel checking
= 0.05 in. angular checking
Check the couplings manual for further details.
Angular checking:
with a sliding rule with a caliper gauge
The alignment will be definitive only
after pipe connection (see § 4.5.1).
If necessary, improve the machine alignment:
→
Complete unit mounted on common base plate:
The machines are first aligned accurately in our
workshops. Usually, any misalignment observed on
site is due to a wrong adjustment under the base
plate (disturbed during transport or because of
forces exerted by the piping). It is only necessary to
rectify the adjustment under base plate. If it proves
to be insufficient, modify the motor and the piping.
→
Pump and motor mounted on individual base
plates:
Machines are (or must be) first mounted on their
own base plate in the workshop. Once the pump is
set, it will be regarded as the fixed piece. Any
alignment necessary shall be carried out on the
motor.
Never connect the electric motor
before the setting has been completely finished.