Nanni N4.115, Руководство оператора

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Replacing the fuel filter
NOTICE: Do not fill the new filter
with fuel before assembly.
1. Close the fuel cock. Clean the
filter bracket. Put a plastic bag
over the filter to prevent leakage
on the engine.
2. Remove the fuel filter . Use a
filter wrench if needed.
3. Check and clean the sealing
surface of the filter bracket. Apply
film of fuel on the seal.
4. Screw the new filter by hand
until the seal touch the matting
surface. Screw a further half turn.
5. Open the fuel cock and bleed
the air in the fuel system.
Air bleeding
Bleeding the air in the fuel system
is necessary :
• After a maintenance operation
on the fuel system.
• If the fuel tank has been emp-
tied.
• The engine has not been started
for a long time.
To bleed the fuel system IF IT IS
NOT FITTED with an electric pump:
1. Fill totally the fuel tank. Open
the fuel cock.
2. Loose the venting screw
. Use rags around the venting
screw.
3. Pump the fuel using hte lever
until fuel free of air bubbles
flows from the venting screw.
NOTICE: If the lever is too hard to
operate, turn the crankshaft a frac-
tion of a turn.
4. Continue pumping and at the
same time tighten the venting
screw.
5. Pump few other times to prime
the system.
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