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connector of the install seat of the fuel filter;
smear a layer of mechanic oil over the sealing
surface of the engine; fill the oil filter with full
clean diesel.
5. Screw the oil filter on the install seat by hand,
after the gasket contacts with the install seat,
tighten it with from semi-circle to 3 / 4 circle. In
order to prevent the damage of filter, do not
over-tighten the oil filter with mechanical method.
5.6.5 APPLICATION AND REPLACEMENT OF FUEL PRE-FILTERS
The function of the pre-filter is basically same as
that of the filter. The only difference is that the
accuracy of the pre-filter is slightly lower as 10цm
(filter accuracy is of 7цm), and the pre-filter has a
water cup to discharge the water and impurities in
the fuel system. Pre-filter replacement cycle is
same as that of the filter.
Fuel pre-filter is to be replaced according to the
following steps:
1. Clean the area nearby the install seat of the
fuel pre-filter.
2. Dismount the fuel pre-filter from the install
seat, and clean the seal surface of the install
seat of with non-fiber cloth.
3. Dismount the transparent drainage cup from
the lower part of the fuel pre-filter.
4. Clean up the water drain cup, and replace
new seal ring, and then install it into a new
fuel filter core of the fuel pre-filter.
5. Fill the fuel into the pre-filter, replace new
seals, and smear a layer of mechanic oil over the
engine, and then install it to the install seat.
