Usins The Generator; Preliminary Checks; Bleeding The Fuel System; Starting - Mase Generators MARINE I.S. 21.5 Manual Uso Y Mantenimento

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4 USING THE GENERATOR

4.1 Preliminary checks

Before beginning with any starting procedure, it is ex-
tremely important to become "familiar" with the genera-
tor and its controls. Furthermore, a visual inspection must
be carried out on the machine and the installation.
Any source of potential or real danger must be elimi-
nated before proceeding.
· Identify the position of the emergency stop buttons,
switches and other emergency systems on the gen-
erator.
· Learn the special emergency procedures relative to
the installation in question.
- the oil level by means of the dipstick [Fig. 7 Ref. 2] (see
table "A" for recommended oils [Fig. 8]).
- that all the anchoring points of the generator are
properly tightened.
- that all the electrical utilities are off to prevent starting
the generator on load
- that the water and fuel pipes are properly connected
- that all the electrical connections have properly been
carried out and that there are no electrical connections
in a bad state.
- that the water cock is open [Fig. 6 Ref. 2]
- that the section of the water circuit from the pump to the
valves has been filled manually if a non-return valve has
been mounted on the sea intake (as recommended in
the installation manual) [Fig. 4 Ref. 1].

4.2 Bleeding the fuel system

The presence of air bubbles in the fuel system is caused
by irregular functioning of the engine or the incapacity to
reach the nominal number of revolutions. Air might enter
the fuel circuit through a not perfectly tight seal (pipes,
filters, tank) or when the fuel in the tank is at minimum
level. The fuel system has been designed in such a way
as to autonomously eliminate air bubbles that have
penetrated the circuit.
To eliminate the air bubbles, first of all eliminate the cause
and carry out the following operations:
1- Adjust the fuel pump lever manually [fig.7, ref.3] until
all the air in the supply system has been released.
2- Repeat the operations described above if engine
operation is still irregular.
For more detailed information,
consult the manual supplied by the engine manufac-
turer that accompanies each generator .
GB

4.3 Starting

Before starting the generator, ensure that the preliminary
checks described in paragraph 4.1 have been carried
out. Start the generator by pressing the START button lo-
cated on the control panel [Fig. 4 Ref. 4] and release it
only when the generator has started, taking care not to
exceed 15 sec. for each attempt and respecting an
interval of at least 30 sec. All the warning lights of the
engine protection module [Fig. 4, Ref. 5] will come on for
a few seconds, and if there are no engine or generator
faults, only the green RUN light [Fig. 4 Ref. 6] will remain
on to indicate that the generator has been started and
that functioning is regular.
Repeated attempts at starting with
negative outcome may cause excess accumulation
of water in the exhaust system with possible serious
damage to the engine.
If it is difficult to start the engine, do not insist for too
long without first having closed the sea intake cock
[Fig. 6 Ref. 2].

4.4 Stopping

The generator is stopped by pressing the button [Fig.4,
Ref.4] on the control panel in "STOP"position.
Before stopping the generator it is
recommended to let it run for a few minutes without
drawing electric current, in order to allow the engine
and the alternator to cool down.
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IS 21.5-23.5