6
LEROY-SOMER
2011.03 / a
Installation and maintenance
LSA VS 40
ALTERNATORS
4779 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 approved
equipment and the alternator must be
horizontal. Check how much the
alternator weighs (see 4.7) before
choosing the lifting tool.
During this operation, do not allow
anyone to stand under the load.
3.1.1 - Handling
The generously-sized lifting rings are for
handling the alternator alone. They must not
be used to lift the genset. The choice of
lifting hooks or handles should be determined
by the shape of these rings. Choose a lifting
system which respects the integrity and the
environment of the alternators.
3.1.2 - Coupling
3.1.2.1 - Single-bearing alternator
Before coupling the alternator and the heat
engine, check they are compatible by:
- Undertaking a torsional analysis of the
transmission
- Checking the dimensions of the flywheel
and its housing, the flange, coupling discs
and offset
When coupling the alternator to the
prime mover, do not use the fan to turn
the alternator rotor.
The holes of the coupling discs should
be aligned with the flywheel holes by
turning the engine flywheel.
Make sure the alternator is securely
bedded in position during coupling.
Check that there is lateral play on the
crankshaft.
3.1.2.2 - Twin-bearing alternator
- Semi-flexible coupling
Careful alignment of the machines is
recommended,
checking
that
the
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.
3.1.3 - Location
The room where the alternator is placed
must be ventilated to ensure that the ambient
temperature cannot exceed the data on the
nameplate.
The heatsink cooling f
ans
must be
pr
o
tected from any external items to
ensure their nominal operation
WARNING
WARNING
