Bleeding the 612 Series Engine Low Pressure Fuel Path
1 - Fitting of the return fuel line; 2 - Ventilation hose; 3 - Ventilation pump
1. Illustrative material for performing the procedure for removing air from the low pressure fuel path of the 612 engine is presented in the illustration, to which all references in the text refer.
2. Remove panels of finishing of a head of cylinders.
3. Disconnect from fitting (1) fuel return line.
4. Connect to the free fitting (1) ventilation hose (2).
5. Connect the vent pump to the cigarette lighter socket (3).
6. Follow the venting procedure until the fuel in the exhaust stream no longer bubbles.
7. Turn off the pump (3) and restore the original communication lines connection.
8. Install the removed components in the reverse order of their dismantling.