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Machine installation
Inspection
It is recommended to check that:
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The erection site is clean
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The erection site is prepared for installation.
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Access is provided for inspection and
maintenance of the machine
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Air ducts, if needed, are free from foreign
matter which could be sucked into the ma-
chine during commissioning
Lifting
Always use all the lifting eyes of the machine
(two or four).
WARNING
Machines with separate heat exchanger have lifting lugs on the heat exchanger.
These are only for lifting the heat exchanger, not the entire machine.
The weight of the machine is shown on the
rating plate.
Some machines are shipped with a transport
locking device. This device should not be
removed as long as the machine remains in
storage. Remove the locking device prior to
installation of the motor.
As the machine is equipped with antifriction
bearings, it must be connected to the driven
equipment with a flexible coupling.
As standard, the armature is balanced with a
half key. The balancing method is described on
the rating plate.
When assembling the coupling halves, take into
account the following instructions:
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Remove the anti-corrosion coating from the
shaft extension.
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Follow the coupling supplier’s assembly
instructions.
Assembly of
coupling
The normal procedure of assembly is by heating
the coupling. The required heating temperature
depends on the interference fit between shaft
and coupling. For this reason a specific tem-
perature cannot be given. Make sure that the
couplings are balanced before assembly.
A clearance of 0.2-0.3 mm is sufficient during
assembly. The armature shaft should be rotated
while the coupling cools, to avoid temperature
stresses and hence bending moments on the
shaft.
WARNING
Never use impact tools. They will damage the bearings.
Checks before
starting
installation
- DMI-motor
- Accessories in separate packages
- Maintenance Instruction, including
“Declaration of Incorporation” and
“EC Declaration of Conformity”
- Check that the rating plate is in accordance
with the order
