Using The Generator - Mase Generators EA 30 R Use And Maintenance Manual

EA 30 R
GB

4 USING THE GENERATOR

4.1 Starting
Before starting the generator check that all the utilities are off to prevent putting the still cold engine under stress.
The generator engine has been calibrated, in idle, to 3120 rpm equal to 52.5 Hz, as the engine stabilises at
about 3000 rpm equal to 50Hz with a load. For this reason, the accelerator lever, (Fig. 3, ref. 4), must never
shift for any reason, since the output voltage, frequency and power values of the generator would be
compromised.
To start proceed as follows.
• Disconnect the outlets, to prevent putting the still cold engine under stress.
• Turn the engine stop switch to position "I", (Fig. 4, ref. 1).
• Open the fuel cock by turning the lever shown in Fig. 3, ref. 2.
• If the engine is cold, close the air start lever by turning it as shown in Fig. 3, ref. 1, before attempting to start. If
the engine is hot the start lever need not be turned.
• Proceed by firmly pulling the self-winding cord, (Fig. 1, ref. G), to start engine rotation.
• Repeat the operation if the engine has not started at the first attempt.
• As soon as the engine has started, gradually return the air start lever to the original position.
Before powering any utility, leave the engine to run without applied load for at least five minutes so that it gradually
reaches the operating temperature. This will guarantee longer life of the engine and eliminate the risk of seizures.
The available power is as indicated on the adhesive label carrying the technical characteristics (Fig. A).
To prevent damage to the self-winding cord of the engine, never release it abruptly after having pulled it out
fully, but guide it until complete rewinding.
The sum of absorption of all the utilities connected to the generator must never exceed the continuous power
value of the generator.
4.2 Protections
The generators of the EA series are fitted with a series of protections which safeguard them from improper use and faults
which may compromise integrity of the generator and operators.
Low oil pressure protection
Intervenes switching off the unit when sump oil level gets down to the minimum. Its intervention is not signaled by warning
lights, therefore, in case machine stops it is always necessary to check oil level to make sure that it is not the cause of
generator's stopping.
Add the necessary quantity of oil to start up the generator again.
Protection against short-circuit and overload
The generator units are equipped with a thermal switch that intervenes to protect from short circuits, overloads and leakage
towards the earth and interrupts electric current supply should there be an overload on alternator.
Before restoring electric current supply by switching the differential magnetic thermal switch on the ON position, it is
necessary to remove the cause of the fault.
GB
- 20