Doosan G625XF, Руководство по эксплуатации и техническому обслуживанию

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50 Hz: G625 - G690 - G750XW/XF
OPERATION & MAINTENANCE MANUAL 67 60 Hz: G655 - G750 - G800 - G850XW/XF
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 machine.
WARNING
During this operation, do not allow anyone to stand
under the load.
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 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.
CHECKS PRIOR TO FIRST USE
Electrical checks
WARNING
Under no circumstances should an alternator, new or
otherwise, be operated if the insulation is less than 1
megohm for the stator and 100,000 ohms for the
other windings.
There are 2 possible methods for restoring the above
minimum values.
a) Dry out the machine for 24 hours in a drying oven
at a temperature of 110 °C (without the regulator).
b) Blow hot air into the air intake, having made sure
that the machine is rotating with the exciter field
disconnected.
NOTE: Prolonged standstill
In order to avoid these problems, we recommend
the use of space heaters, as well as turning over
the machine from time to time. Space heaters
are only really effective if they are working
continuously while the machine is stopped.