Maintenance - Fuel system


Fuel system

It is particularly important to keep the fuel system well maintained - If even only slight traces of contamination or water are allowed to get past the filtration system and into the injection pump, the engine performance will be seriously affected and serious damage will be caused to the pump.

Fuel tank

The fuel tank holds approx. 19 gals (86 litres). Use clean diesel fuel only. Always fill the tank at the end of the days work to avoid condensation. Drain the diesel tank periodically. (At least every 300 hrs) Take care to ensure the cap is correctly fitted after filling and when washing off do not direct a pressure washer directly at or under the filler/breather.

Water/sediment trap

A water trap/sediment bowl is fitted in the suction line between the tank and fuel filter. The glass bowl should be checked weekly for any signs of water or sediments. The glass bowl should be removed, emptied and cleaned before it gets half full of water. When the bowl is removed you will also find a gauze mesh filter under the head unit which should also be removed and thoroughly cleaned. Failure to keep this mesh clean will result in loss of engine power. When replacing the bowl take care not to overtighten the thumbscrew.

Draining fuel filter

The fuel filter unit should also be drained regularly (every 50 hrs). To do so slacken the hexagon headed screw underneath the filter assembly to allow any accumulated water to drain from the filter.

 

 
Replacing fuel filter element

1. Ensure filter assembly and general area is clean.
2. Drain fuel from fuel filter.
3. Support the bowl at base of filter while unscrewing the centre retaining bolt (1).
4. Detach bowl and filter element from the filter head and discard the element and both sealing rings.
5. Wash out the bowl with clean fuel oil.
6. Assemble new filter element between head and bowl, using new sealing rings at top and bottom and taking great care to avoid any contamination with dirt
7. Tighten centre retaining bolt and drain plug in bowl.

Fuel filter assembly:

  1. Retaining bolt

  2. Filter element
  3. Water drain
  4. Outlet pipe
  5. Hand primer


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