Engines 611.962 with No.257722 and 612.962
If the engine has stopped due to complete fuel consumption, air should be removed from the fuel system after refueling.
To do this, try to start the engine for no longer than 60 seconds each time until it runs smoothly.
It may be necessary to remove air from the low pressure fuel circuit using a vacuum pump and a diesel fuel collection container after performing work or servicing the fuel system.
Removal air
1. Remove the top engine covers, refer to Section Removal and installation the top engine cover.

2. Press the locking ring (1) on the air bleed valve (2) in the direction of the arrow and remove the plug (3).
3. Press the suction pipe of the vacuum pump into the air bleed valve to release it.
4. Connect the pipeline between the suction pipe and the vacuum pump tank.
5. Attach the vacuum side of the pump to the container.
6. Pump the pump so that the fuel flows into the vacuum pump container without air bubbles.
7. Press the locking ring on the air bleed valve in the direction of the arrow and disconnect the inlet pipe.
8. Insert the plug into the air bleed valve until it locks into place.
9. Install the engine top covers, refer to Section Removal and installation the top engine cover.
