14
Fig. 30
Spark
plug
(Fig.
31)
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 0.024
˝
(0.6 mm).
The spark plug should be replaced after about 100
operation hours or earlier if the electrodes are badly
eroded.
0.024
˝
(0.6 mm)
Fig. 31
Mu
ffl
er
(Fig.
32)
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.
Fig. 32
Cylinder
(Engine
cooling)
(Fig.
33)
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.
Fig. 33
NOTE
Do not operate engine with engine shroud
or mu
ffl
er guard removed as this will cause
overheating and engine damage.
Angle
transmission
(Fig.
34)
Check angle transmission or angle gear for
grease level about every 50 hours of operation by
removing the grease
fi
ller plug on the side of angle
transmission.
If no grease can be seen on the
fl
anks of the gears,
fi
ll the transmission with quality lithium based
multipurpose grease up to 3/4. Do not completely
fi
ll
the transmission.
Fig. 34
Blade
WARNING
Wear
protective
gloves
when
handling
or
performing
maintenance
on
the
blade.
(Fig.
35)
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000Book̲TCG40EAS(P)̲̲US.indb 14
2009/11/27 17:15:51
2009/11/27 17:15:51
