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impurities in diesel will settle at the bottom of fuel tank.
5. After end of daily work, unscrew the drain plug at the bottom of diesel pre-filter, primary
diesel filter and secondary diesel filter to remove moisture and impurities.
Repeat the above steps till the drained oil is clean.
5.8.2 FUEL OIL LEVEL INSPECTION
1. Drive the loader to the even site, turn off the engine.
2. Turn the key clockwise and switch to shift one, and power on the whole car.
3. Inspect the amount of instruments on stage fuel table instructions.
4. Inspect the elongated oil level of the fuel tank.
5. If the fuel level is below the center of the min. limit of the level line of the oil (about
20L), you need to add fuel. And observe it at any time to ensure that the fuel level will
not lower than the center line of the oil min. Level.
5.8.3 APPLICATION AND REPLACEMENT OF FUEL FILTERS
Engine fuel filter can filter out impurities and particles in the fuel in order to reduce the
wear of the precision coupling of the fuel pump and injector. After fuel is filtered, the dirt
will be kept at the outer surface of filter. As the filter element is made of diesel filter paper,
therefore, it requires regular maintenance and replacement. The replacement cycle is
every 500 hours running of the engine.
Fuel filters should be replaced according to the following steps:
1. Firstly clean the fuel filter (coarse filter and fine filter), and clean the install seat.
2. Dismount the fuel filter from the install seat with a belt wrench.
3. Remove the seat gasket on the screw connector of the install seat. Clean the sealing
surface of install seat with the non-fiber cloth.
4. Install a new gasket to the threaded connector of the install seat of the fuel filter;
smear a layer of engine 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.
5.8.4 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
