WDX USER INSTRUCTIONS ENGLISH 71576322 06-05
Page 17 of 46
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barriers
g) If anchor bolts have been embedded in the
foundation, slightly tighten the anchor bolts.
Otherwise let them hang in the foundation holes.
h) If not supplied, guarding shall be fitted as necessary
to meet the requirementsof EN292 and EN953 and
or any applicable local safety regulations.
4.4 Grouting
Where applicable, grout in the foundation bolts.
Grouting provides solid contact between the pump
unit and foundation prevents lateral movement of
running equipment and dampens resonant vibrations.
Prepare the site for grouting. Before grouting clean
the foundation surface thoroughly. Provide external
barriers as shown:
Prepare grouting product (concrete, resin) in
accordance with manufacturers' instructions.
(Use anti-shrink products)
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.
Foundation bolts should only be fully tightened when
the grout has cured.
4.5 Initial alignment
Before connecting the couplings verify
the motor rotation direction.
4.5.1 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.
4.5.2 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.
Pump-Driver unit supplied assembled on their
baseplate:
The machines have originally been aligned in the
work-shop.
Pump and Driver supplied on separate baseplates:
The machines have originally been mounted on their
respective baseplate in the workshop. The pump is to
be installed first and should be considered as the
fixed point. The alignment is then performed on the
driver alone.
Before aligning verify that the pump is horizontal by
using a flange surface or other horizontal surface.
Adjust if necessary by adjusting the height of the
wobble foot. Tighten any nuts that have been
loosened.
Alignment is achieved by adding or removing shims
under the motor feet and also moving the motor
horizontally as required. In some cases where the
alignment cannot be achieved it will be necessary to
move the pump before recommencing the above
procedure.
For couplings with narrow flanges use a dial indicator
as shown below to check both parallel and angular
alignment.
