Dover PSG MOUVEX SUBMERGED AM UNIT ON PLATE Pengoperasian & Pemeliharaan Instalasi - Halaman 5
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4.1 Alignment of motor/pump and reduction
gearbox/pump shafts
WARNING
Do not operate
without guard
in place.
WARNING
Dangerous voltage.
Can cause
injury and death.
The motor and pump shafts are accurately aligned at the
factory before dispatch, but they should be checked
carefully when received at the site and realigned if
necessary. To align the coupling and the shaft, use a
straight-edge to check the concentricity and thickness
gauges for the angular misalignment.
The 3 figures below show the procedure in detail and the
admissible deviations :
Carry out the control at four points :
at the top ‐ at the bottom ‐ left ‐ right
Controlling the alignment at each stage of the installation
is important to be sure that none of the following procedu-
res has generated stresses on the unit or the pump :
• after fastening on the foundations.
• after fastening the pipes.
• after the pump has been operated at the normal
operating temperature.
You cannot rely on the coupling to compensate for mis-
alignment.
NEVER START A UNIT IF THE COUPLING ALIGNMENT IS
INCORRECT. THIS WILL RENDER OUR WARRANTY INVALID.
NT 1010-I00 03 18 Submerged AM unit on plate e
4. DIRECT DRIVE BY MOTOR
OPERATION WITHOUT THE SHAFT
PROTECTOR CAN CAUSE SERIOUS
PERSONAL INJURY, MAJOR PROPER-
TY DAMAGE OR DEATH.
DISCONNECT THE ELECTRICITY
SUPPLY BEFORE ANY MAINTENAN-
CE OPERATION.
Correct
Bad alignment
Angular fault
REMINDER :
4.2 Electric motors
WARNING
Dangerous voltage.
Can cause
injury and death.
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.
WARNING
Any unforeseen start-up
can cause serious
injuries or important
material damages.
WARNING
Hazardous pressure
can cause
personal injury
or property damage.
WARNING
Do not operate
without guard
in place.
This check should be done with no liquid being pumped,
and both the inlet and discharge circuits vented to avoid
generating unexpected pressure (on the inlet side, for
example). This will avoid damaging either the pump or
the system.
5/13
DISCONNECT THE ELECTRICITY
SUPPLY BEFORE ANY MAINTENAN-
CE OPERATION.
TAKE ALL NECESSARY MEASURES
TO RENDER ANY START-UP, EVEN
ACCIDENTAL, OF THE PUMP DURING
THE WORK IMPOSSIBLE.
PUMPS OPERATING AGAINST A CLO-
SED VALVE CAN CAUSE SYSTEM
FAILURE, PERSONAL INJURY AND
PROPERTY DAMAGE.
OPERATION WITHOUT THE SHAFT
PROTECTOR CAN CAUSE SERIOUS
PERSONAL INJURY, MAJOR PROPER-
TY DAMAGE OR DEATH.