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NT 1008-D00 08 18 P BI series e
2. INSTALLATION (continued)
2.10 Installation of units
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 motor-driven 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 defor-
mation 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 one-piece unit in doubled plate, it is
recommended 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 motor-driven pump should all room for
demounting the pump (for distances, refer to the dimen-
sion drawing at the start of the notice).
The chassis is equipped with a ground connection that
must be used to protect people and equipment.
2.11 Alignment of motor/pump and reduction
gearbox/pump shafts
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 :
Controlling the alignment at each stage of the installation
is important to be sure that none of the following proce-
dures 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.
REMINDER :
You cannot rely on the coupling to compensate for misa-
lignment.
NEVER START A UNIT IF THE COUPLING ALIGNMENT IS
INCORRECT. THIS WILL RENDER OUR WARRANTY INVALID.
WARNING
BE CAREFUL WITH THE WEIGHT OF THE
PARTS WHEN THEY ARE BEING
REMOVED.
The weight ot the parts
can be dangerous and
may provoke bodily inju-
ries or material damages.
WARNING
DISCONNECT THE ELECTRICITY SUPPLY
BEFORE ANY MAINTENANCE OPERATION.
Dangerous voltage.
Can cause
injury and death
.
WARNING
IF OPERATED WITHOUT THE SHAFT
GUARD, THERE IS CONSIDERABLE RISK
OF SEVERE PERSONAL INJURY, SIGNIFI-
CANT PROPERTY DAMAGE OR EVEN
DEATH.
Do not operate
without guard
in place.
WARNING
DISCONNECT THE ELECTRICITY SUPPLY
BEFORE ANY MAINTENANCE OPERATION.
Dangerous voltage.
Can cause
injury and death
.
Make this check for 4 points:
up ‐ down ‐ left ‐ right
Correct
Out‐of‐parallelism
Angular defect
(maximum : 1°)