Clean the air
fi
lter daily or more often if working in exceptionally dusty
areas.
Cleaning
the
air
fi
lter
Remove the air
fi
lter cover and the
fi
lter (10). Rinse it in warm soap
suds. Check that the
fi
lter is dry before reassembly. An air
fi
lter that has
been used for some time cannot be cleaned completely. Therefore,
it must regularly be replaced with a new one. A damaged
fi
lter must
always be replaced.
Fuel
fi
lter
(Fig.
9)
Drain all fuel from fuel tank and pull fuel
fi
lter line from tank. Pull
fi
lter
element out of holder assembly and rinse element in warm water with
detergent.
Rinse thoroughly until all traces of detergent are eliminated. Squeeze,
do not wring, away excess water and allow element to air dry.
NOTE
If element is hard due to excessive dirt buildup, replace it.
Spark
plug
(Fig.
10)
The spark plug condition is in
fl
uenced by:
○
An incorrect carburetor setting
○
Wrong fuel mixture (too much oil in the gasoline)
○
A dirty air
fi
lter
○
Hard running conditions (such as cold weather)
These factors cause deposits on the spark plug electrodes, which
may result in malfunction and starting di
ffi
culties. If the engine is low
on power, di
ffi
cult to start or runs poorly at idling speed, always check
the spark plug
fi
rst. If the spark plug is dirty, clean it and check the
electrode gap. Re-adjust if necessary. The correct gap is 0.6 mm.
The spark plug should be replaced after about 100 operation hours or
earlier if the electrodes are badly eroded.
NOTE
In some areas, local law requires using a resistor spark plug
to suppress ignition signals. If this machine was originally
equipped with resistor spark plug, use same type of spark plug for
replacement.
Mu
ffl
er
(Fig.
11)
Remove the mu
ffl
er and clean out any excess carbon from the exhaust
port or mu
ffl
er inlet every 100 hours of operation.
Cylinder
(Engine
cooling)
(Fig.
12)
The engine is air cooled, and air must circulate freely around engine
and over cooling
fi
ns on cylinder head to prevent overheating.
Every 100 operating hours, or once a year (more often if conditions
require), clean
fi
ns and external surfaces of engine of dust, dirt and oil
deposits which can contribute to improper cooling.
NOTE
Do not operate engine with engine shroud or mu
ffl
er guard
removed as this will cause overheating and engine damage.
Maintenance
schedule
Below you will
fi
nd some general maintenance instructions. For further
information please contact your Tanaka dealer.
Daily
maintenance
○
Clean the exterior of the unit.
○
Check that the harness is undamaged.
○
Check that nuts and screws are su
ffi
ciently tightened.
Weekly
maintenance
○
Check the starter, especially the cord and return spring.
○
Clean the exterior of the spark plug.
○
Remove it and check the electrode gap. Adjust it to 0.6 mm, or
change the spark plug.
○
Clean the cooling
fi
ns on the cylinder and check that the air intake
at the starter is not clogged.
○
Clean the air
fi
lter
Monthly
maintenance
○
Rinse the fuel tank with gasoline.
○
Clean the exterior of the carburetor and the space around it.
○
Clean the fan and the space around it.
8
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2012/10/22 18:49:57
