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4.1 Installation of units
WARNING
The weight ot the parts
can be dangerous and may
provoke bodily injuries
or material damages.
The correct seating of the pump is vital for its efficient operation
and its longevity. The base must be flat, level and sufficiently
resistant to absorb the stresses caused by the motordriven
pump without deformation (if it is made of concrete, it must
comply with standard BAEL 91).
In the case where the unit is fastened by anchor lugs or bolts,
it must be carefully wedged to prevent any deformation of
the chassis when tightening the bolts. Deformation of the
chassis will cause stress prejudicial to the pump and the drive
device and put the coupling out of true alignment, thereby
causing vibrations, noise and premature wear. Care must be
taken so that the chassis is clear of the ground, apart from
the base plates.
If the chassis is a onepiece unit in doubled plate, it is recom
mended that a horizontal clearance of about 50 cm be left
between one section of the chassis and the other to allow
access for fastening the nuts on the pump, reduction gearbox
and motor. In all cases, the clearance around the motordriven
pump should all room for demounting the pump (for distances,
refer to the dimension drawing at the start of the notice).
The chassis is equipped with a ground connection that must
be used to protect people and equipment.
NT 1010P00 09 20 CC1024 A e
4. DIRECT DRIVE BY MOTOR
BE CAREFUL WITH THE WEIGHT OF THE
PARTS WHEN THEY ARE BEING REMOVED.
4.2 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 fac
tory 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 straightedge 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 procedures 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 operat
ing temperature.
You cannot rely on the coupling to compensate for misalign
ment.
NEVER START A UNIT IF THE COUPLING ALIGNMENT IS INCORRECT.
THIS WILL RENDER OUR WARRANTY INVALID.
7/18
OPERATION WITHOUT THE SHAFT PRO-
TECTOR CAN CAUSE SERIOUS PERSONAL
INJURY, MAJOR PROPERTY DAMAGE OR
DEATH.
DISCONNECT THE ELECTRICITY SUPPLY
BEFORE ANY MAINTENANCE OPERATION.
Correct
Bad alignment
Angular fault
(maximum : 1°)
Reminder :