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NT 1101-B00 11 13 A15 - AS15 e
2.12 Alignment of motor / pump and reduction
gearbox / pump shafts
To check the alignment and coupling, use a set square to
control the axial misalignment and feeler gauges for angu-
lar misalignment.
It is important to control the alignment at every step of
installation in order to ensure that none of these steps
generates stress on the pump unit or the pump itself :
• after fastening on foundations
• after fastening the piping
• after the pump has operated at normal operating
temperature.
REMINDER :
Do not rely on the flexible coupling to compensate for
misalignment.
2.13 Electric motors
Check that the supply voltage matches the indications
on the motor rating plate.
Comply with the wiring diagram, make sure the wires are
rated for the power and take care with the contacts
which must be thoroughly tightened.
The motors must be protected by appropriate circuit
breakers and fuses.
Connect the regulatory ground connections.
Check the direction of rotation :
This fundamental checking of the pump must be done
without any product, with the inlet and outlet circuit open
to the air, for example, to avoid any risk of an unexpec-
ted pressure rise. Start the pump empty to check the cor-
rect operation of the connections and check that the
direction of rotation corresponds to installation's inlet
and outlet direction. Follow the instructions below if
necessary to change the direction of rotation.
Three phase motor : switch any two wires of the current
supply.
Two phase motor : switch the two wires of the same
phase.
Single phase motor : comply with the instructions of the
manual supplied with the motor.
OPERATION WITHOUT THE SHAFT
PROTECTOR CAN CAUSE SERIOUS
PERSONAL INJURY, MAJOR PROPERTY
DAMAGE, OR DEATH.
WARNING
Do not operate
without guard
in place.
OPERATION WITHOUT THE SHAFT
PROTECTOR CAN CAUSE SERIOUS
PERSONAL INJURY, MAJOR PROPERTY
DAMAGE, OR DEATH.
WARNING
Do not operate
without guard
in place.
DISCONNECT THE ELECTRICITY SUPPLY
BEFORE ANY MAINTENANCE OPERATION.
WARNING
Dangerous voltage.
Can cause
injury and death
.
Carry out the control at four points :
at the top - at the bottom - left - right
Correct
Bad alignment
Angular fault
DISCONNECT THE ELECTRICITY SUPPLY
BEFORE ANY MAINTENANCE OPERATION.
WARNING
Dangerous voltage.
Can cause
injury and death
.
2. INSTALLATION (continued)
