2.2.11. Replacement of fuel filter z Clean the area around the fuel filter head(3). z Remove the fuel filter(2). z Remove the fuel filter thread adapter seal ring(4). Use a clean lint free cloth to clean the gasket surface of the fuel filter head(3). z Install the new thread adapter seal ring(4)supplied with the new filter. Use clean oil to lubricate the filter seal(5), and fill the new filter with clean fuel. z Install the filter on the filter head(5). Tighten the filter until the gasket contacts the filter head surface. Tighten the filter on additional one-half to three-fourths of a turn, on as specified by the filter manufacturer. NOTE :
Mechanical over tightening of the filter can distort the thread or damage the filter element seal. 2.2.12. Injector maintenance The injectors are designed to spray the fuel delivered by the injection pump directly into the spherical combustion chamber in the piston crown. The injector consists of the nozzle and the nozzle holder. A copper gasket fitted to the injector ensures gas-tight seating and good heat dissipation. The opening pressure of the nozzle is adjusted by means of shims at the compression spring. 1. Rod type filter 2. Cap nut 7 3. Compression spring 1 8 4. Compression pin 9 5. Cap nut for fixed nozzle 6. Nozzle needles 2 7. Connect hole for fuel delivery 10 8.
Nozzle holder 3 9. Connect tube for overflow 10. Shim 4 11 11. Pin 12. Nozzle bush 5 12 6 EA6O5006 Technical Information - 27 -