4. Regular inspection
56
9. Turn it by 3/4 to 1 turn with a fuel filter wrench.
DV2213020A
Preventing fuel contamination
Most of the fuel contaminations encountered while using
the alternator engine are caused by water and propaga-
tion of microbes.
Usually, the contamination results from improper handling
of fuel. Propagation of microbes requires water contained
in the fuel. To prevent propagation of microbes, you have
to keep the water to the minimum level possible in the
storage tank.
Fuel injection pump
• Check the fuel injection pump housing, and replace it
if crack or damage is found.
• Check if the idle operaion and speed control lever’
s
s
ealing device was not removed.
• Chcek if the idling or speed control lever’s sealing li
ne
i
s not damaged.
• You should not modify the fuel injection pump if t
he
s
ealing line is damaged, such engine cannot receive
compensation.
• if the fuel injection pump is found abnormal, autho-
rized personnel should handle it.
• The adjustment and test of the fuel injection pump
must be conducted using a tester.
Cleaning the fuel pre-filter
The fuel pre-filter should be cleaned periodically through
disassembly. the fuel pre-filter is mounted individually for
easy maintenance. Open the cover of the pre-filter and
clean the element with compressed air first, and then
rinse it with diesel fuel to remove foreign substances.
DV2213021C
If you separate the parts where the seal ring (copper
seal ring, rubber coating seal ring, etc.) is assem-
bled, you should replace the seal ring with a new
one. Otherwise, leakage may occur in the fuel filter
connections, preventing normal functioning.
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