4
2
3
1
Fuel System
13---6
A. Bleeding fuel system
413--- 8
1. Slacken the bleeder screw on the filter head. Pump with the
hand pump until the fuel flowing out at the bleeder screw is
free from air bubbles. Then tighten the bleeder screw.
413--- 9
3. Slacken the injection pump overflow valve. Pump with the
hand pump until the fuel flowing out is free from air bubbles.
Tighten the overflow.
4. Wipe off any fuel from the engine.
B. Bleeding thermostart system
Always remove air from the glow plug fuel pipe when the pipe
or reservoir has been emptied during repair work etc. This
prevents damages to the glow plug caused by lack of fuel
during starting.
System with the magnetic valve
413--- 10
1. Disconnect the electrical wire from the glow plug and the
fuel pipe.
2. Connect electricity to the magnetic valve and rotate the en-
gine until fuel comes out from the fuel pipe connection.
3. Tighten the pipe connection and connect the electrical
wire.
System with the fuel reservoir
1. Reservoir filling
2. To the glow plug
3. Return the fuel tank
4. Breather
1. If the tank is empty fill it first e.g. through the breather.
2. Open the fuel pipe connection to the glow plug and let the
fuel come out. Tighten the pipe.