Bleeding The Fuel System; Draining The Fuel Tank - Toro 320-D Operator's Manual

Bleeding the Fuel System

Bleed the air from the fuel system in any of the
following situations:
•
Initial start-up of a new machine or a machine that
has been stored
•
After the engine has ceased running due to lack
of fuel
•
After maintenance has been performed on the fuel
system components
1. Park the machine on a level surface, engage the
parking brake, and lower the loader arms.
2. Shut off the engine and remove the key.
3. Open the rear-access cover.
4. Place a drain pan under the fuel filter to catch
fuel spills.
5. Open the bleed screw on top of the fuel filter to
fill the bowl with fuel
Figure 33
1. Fuel filter
6. Close the bleed screw when fuel comes out in
a steady stream.
7. On left side of the engine, locate the air vent plug
on top of the fuel-injection pump and connect a
hose to it, leading to a drain pan.
8. Open the vent plug and crank the engine until
fuel comes out a steady stream.
9. Close the vent plug.
10. Close the rear-access cover.
(Figure 33).
2. Bleed screw

Draining the Fuel Tank

1. Park the machine on a level surface, engage the
parking brake, and lower the loader arms.
2. Shut off the engine and remove the key.
3. Shut off the fuel valve in the hose near the
bottom of the fuel tank
1. Fuel valve (open)
4. Open the rear-access cover.
5. Loosen the hose clamp at the fuel filter and slide
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it up the fuel line away from the filter.
6. Pull the fuel line off the fuel filter, open the fuel
valve, and allow the fuel to drain into a fuel can
or drain pan.
7. Close the fuel valve.
8. Install the fuel line onto the fuel filter.
9. Slide the hose clamp close to the fuel filter to
secure the fuel line.
10. Close the rear-access cover.
11. Open the fuel valve in the hose near the bottom
of the fuel tank as illustrated in
Note:
Now is the best time to install a new fuel filter
because the fuel tank is empty.
32
(Figure 34).
Figure 34
2. Fuel valve (closed)
Figure 34.
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