Flowserve MEN - Manual (Page 12)

MEN USER INSTRUCTIONS ENGLISH 71576288 – 11-09
Page 12 of 36
®
Use grouting products with anti-shrinking
components.
- To grout up to the required level. Polish surfaces.
Take necessary precautions to avoid air bubbles.
- Lay-down the barrier, break external angles, and
polish the different surfaces.
- After grout starts to cure, definitively tighten
anchor bolts.
- Control the alignment such as described as
follows:
4.4 Initial alignment
4.4.1 Coupling assembly
4.4.1.1 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.
4.4.1.2 Alignment methods
Ensure pump and driver are isolated
electrically; that the batteries and start-up shunt are
disconnected and the half couplings are
disconnected. Ensure that the pump piping, 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
Operations to be carried out by
qualified FLOWSERVE employees only.
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:
= 0.15 mm parallel checking
= 0.1 mm angular checking
Angular checking:
with a sliding rule with a caliper gauge
The alignment will be definitive only
after piping connection (see § 4.5.1).
After alignment, the coupling protection cover
must be refitted.
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/or the piping
and pump adjustment.