2018.11 / m
7
Electric Power Generation
Installation and maintenance
LSA 40
Low Voltage Alternators - 4 pole
4455 en -
3 - INSTALLATION
Personnel undertaking the various
operations indicated in this section must
wear personal protective equipment
appropriate for mechanical and electrical
hazards.
3.1 - Assembly
All mechanical handling operations
must be undertaken using suitable
equipment and the machine must be
horizontal. Check how much the machine
weighs before choosing the lifting tool.
During this operation, do not allow
anyone to stand under the load.
• Handling
The generously-sized lifting eyes are for
handling the alternator only. They must not
be used to lift the genset. The choice of
lifting hooks or handles should be
determined by the shape of the lifting eyes.
Choose a lifting system which respects the
integrity and the environment of the
machine.
During this operation, do not allow
anyone to stand under the load.
• Single-bearing coupling
Before coupling, check the compatibility
between the alternator and the engine by
performing:
- undertaking a torsional analysis of the
transmission (alternators data are available
on request),
- checking the dimensions of the flywheel
and its housing, the flange, coupling discs
and offset.
WARNING
When coupling the alternator to the
prime mover, do not use the fan to turn
the alternator or rotor.
The holes of the coupling discs should
be aligned with the flywheel holes by
cranking the engine.
Make sure the machine is securely
bedded in position during coupling.
Check that there is lateral play on the
crankshaft.
• Double-bearing coupling
- Semi-flexible coupling
Careful alignment of the machines is
recommended, checking that the lack of
concentricity and parallelism of both parts
of the coupling do not exceed 0.1 mm.
This alternator has been balanced with a
1/2 key.
• Location
The room where the alternator is placed
must be ventilated to ensure that the
ambient temperature cannot exceed the
data on the nameplate.
WARNING
After handling the machine using the
lifting ring, snap on the plastic cover
provided in the maintenance manual
wallet.
