Fischer Panda 12000x PVMV-N, Manual

Page: 98 / 190

Generator operation instruction
Seite/Page 98 - Kaptitel/Chapter 6: Generator operation instruction 10.6.16
6.3.1.1 Pre-heating the diesel motor
Pre.champer diesel engines are equipped with a quick glow plug. The maximum pre glow time should not exceed 20
sec. At 20 °C or more the pre glow time should be about 5-6 sec. Below 20 °C the pre glow time should be
increased,
Note: If the operation fluids have been drained and then filled
with cold weather fluids, always run the generator for 10
minutes to ensure the new fuel is present throughout the
system.
6.3.1.2 Tips regarding starter battery
Fischer Panda recommends normal starter battery use. If an genset is required for extreme winter conditions, then
the starter battery capacity should be doubled. It is recommended that the starter battery be regularly charged by a
suitable battery-charging device (i.e., at least every 2 Months). A correctly charged starter battery is necessary for
low temperatures.
6.3.2 Light load operation and engine idle
If an engine is operated on a load less than 25-30 % of its rated output, the soot of the generator will be observed
which may give cause for concern. The usual results of this operation are heavier than normal lubricating oil
consumption, and oil leaks from the air and exhaust manifolds. This condition is particularly evident on standby
generator set applications.
6.3.2.1 The soot of the generator is due to the fact that:
The cylinder temperatures are too low to ensure complete burning of all the fuel delivered.
A further result is that of abnormal carbon build-up on the valves, piston crowns and exhaust ports. Fuel dilution of
the lubricating oil will also occur.
6.3.2.2 To prevent the soot of the generator following steps should be observed:
Running on light load should be avoided or reduced to the minimum period.
In a period of 50 operation hours the engine or generator set should be run on full load for four hours, to burn off
accumulations of carbon in the engine and exhaust system. This may require the use of a 'dummy load'. The load
should be built up gradually from 30 % to 100 % within 3 hours and hold at 100 % for one hour.
6.3.3 Generator load for a longer period and overload
Ensure the generator is not overloaded. Overloading occurs when the electrical load is higher than the generator
can provide. If this occur for a longer period, the engine may be damaged. Overloading may cause rough running,
high oil and fuel consumption, increased emissions.
For a long engine life, the long therm load should not exceed 80 % of the nominal load. Long therm load is the load
over several hours. It is harmless for the generator to deliver full nominal power for 2-3 hours.
The hole conception of the Fischer Panda generator make sure, that the full power operation at extreme condition
will not increase the engine temperatures over. Please note that the emissions of the generator also increase at full
power operation.