Diesel Gen-set Operation Instructions
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manually, it is acceptable to refill fuel to daily-use fuel tank by a manual pump or
automatic refueling system;
3) Outlet of daily-used fuel tank shall be at a position which is 0.5m above foundation
of the Gen-set (the same with height of fuel injection pump of diesel engine). The
outlet shall not be too high (not 1m higher than fuel injection pump), in order to avoid
its pressure from exceeding maximum pressure resistance of fuel pump of the Gen-set;
and, it shall not be too low (not 1m lower than fuel injection pump), in order to
prevent it from exceeding suction range of fuel injection pump;
4) The daily-used fuel tank shall be equipped with grounding device to prevent fire
caused by internal electrostatic spark generated during refueling.
7.2 Fuel delivery pipe
1) Diameter of fuel pipe depends on inlet diameter of fuel injection pump and shall be
the same with inner diameter of inlet at least; if it is far in distance, diameter of the
pipe shall be increased properly; in general, outlet of daily-used fuel tank shall be
provided with an auxiliary fuel pump in order to avoid excess siphon pressure from
being produced in the pipe.
2) Connection between pipe and the Gen-set shall be flexible and close to fuel pump
of the Gen-set as much as possible.
3) Exposed sections of the pipe shall be supported and protected properly, in order to
prevent them from being damaged;
4) The pipe shall be kept away from high-temperature parts, such as hot pipes, stove,
electric wires, exhaust pipe, etc. If ambient temperature is relatively high, proper heat
insulation measures shall be taken.
5) After the pipe is installed, clean it and check if there is any leakage, as well as
bleed air in the pipe;
6) The part where fuel return pipe enters into daily-use fuel tank shall be higher than
