ATURIA TK, Instruction Manual

Page: 11 / 32

LTK0E01D 05/2017
11
4.2 Alignment
After positioning the pump unit on the foundation and connecting the pipes, it is necessary to
align it with due precision before starting.
To this purpose, remove the coupling guard and measure the concentricity and the
parallelism of the half coupling joints with a ruler and a thickness gauge.
Place the ruler in positions 1-2-3-4 ( see below picture ) and check radial offset “a” it should not exceed
0,1 mm
Measure then the distance “ b “ with a thickness gauge at positions 1-2-3-4.
The difference between readings in positions 1-3 and 2-4 should not exceed 0,1 mm.
Group alignment can be checked more accurately by using a millesimal comparator (millesimal dial
indicator).
THE COUPLING GUARD MUST BE FITTED ON BASEPLATE AFTER ALIGNMENT.
4.3 Electrical connections .
Electrical connections should be made only by specialized personnel, strictly following the
instructions of motor and electrical equipments manufacturers.
In case of three-phase line make sure that voltage is the same in the three phases.
Connect motor earthing correctly.
Remove the terminal board cover, connect electrical lines as shown inside the terminal
board, then put back the terminal board cover.
We recommend to install a safety switch upstream the motor to protect the motor against voltage drop or
overload.
Please refer to current data on motor nameplate for its correct sizing.
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