105
G20, 30, 40 SIIIA Operation & Maintenance Manual
INSTALLATION
Personnel undertaking the various operations indicated
in this section must wear personal protective equipment
appropriate for mechanical and electrical hazards.
ASSEMBLY
WARNING
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 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.
During this operation, do not allow anyone to stand
under the load.
CAUTION
After handling the machine using the lifting ring,
snap on the plastic cover provided in the
maintenance manual wallet.
Single-bearing coupling
Before coupling the machines, check that 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.
CAUTION
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 alternator 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.
Summary of Contents for G20 SIIIA
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