AP47.00-T-1720-01A | Bleeding fuel system | Model 613.355 with engine 441.980 Model 671 with engines 447, 489 |
M47.00-0001-01
Illustrated on model 613
Left-hand illustration
System with one fuel filter
Right-hand illustration
System with two fuel filters
Bleeding
1 Unscrew bleed screw (arrow) of fuel filter 1-2 turns.
M47.00-0002-01
M47.00-0003-01
Illustrated on model 613
2.1 Slacken handle of hand pump (arrow) by turning to the left.
3.1 Operate hand pump (arrow) until fuel flows out at the bleed screw free of bubbles.
4.1 Tighten bleed screw.
5.1 Continue operating hand pump (arrow) until a slight chattering is audible from the overflow valve.
6.1 Tighten handle of the hand pump (arrow).
T47.31-0001-02
Shown on model 671
System with two fuel filters
2.2 Slacken handle of hand pump (left arrow) by turning to the left.
3.2 Operate hand pump (left arrow) until fuel flows out free of bubbles at the bleed screw (right arrow).
4.2 Tighten bleed screw (right arrow).
5.2 Continue operating hand pump (left arrow) until a slight chattering is audible from the overflow valve.
6.2 Tighten handle of the hand pump (left arrow).