Maintenance; Cleaning The Air Filter - Hitachi Koki Tanaka TCS 33EDTP Manual De Instrucciones

MAINTENANCE

MAINTENANCE, REPLACEMENT OR REPAIR OF
THE EMISSION CONTROL DEVICES AND SYSTEM
MAY BE PERFORMED BY ANY NON-ROAD ENGINE
REPAIR ESTABLISHMENT OR INDIVIDUAL.
Carburetor adjustment (Fig. 32)
WARNING
Never start the engine without the complete side
case.
Otherwise the clutch can come loose and cause
personal injuries.
In the carburetor, fuel is mixed with air. When the engine
is test run at the factory, the carburetor is adjusted.
A further adjustment may be required, according to
climate and altitude. The carburetor has one adjustment
possibility:
T = Idle speed adjustment screw.
Idle speed adjustment (T)
Check that the air fi lter is clean. When the idle speed
is correct, the cutting attachment will not rotate. If
adjustment is required, close (clockwise) the T-screw,
with the engine running, until the cutting attachment
starts to rotate. Open (counter-clockwise) the screw
until the cutting attachment stops. You have reached
the correct idle speed when the engine runs smoothly
in all positions well below the rpm when the cutting
attachment starts to rotate.
If the cutting attachment still rotates after idle speed
adjustment, contact Tanaka dealer.
WARNING
When the engine is idling the cutting attachment
must under no circumstances rotate.
NOTE
Some models sold in areas with strict exhaust
emission regulation do not have high and low speed
carburetor adjustments. Such adjustments may
allow the engine to be operated outside of their
emission compliance limits. For these models, the
only carburetor adjustment is idle speed.
Fig. 32
If you are not familiar with this type of adjustment, please
ask for assistance from Tanaka dealer.
Air fi lter (Fig. 33)
The air fi lter (37) and cleaner sponge (36), (38) must be
cleaned from dust and dirt in order to avoid:
○ Carburetor malfunctions.
○ Starting problems.
○ Engine power reduction.
○ Unnecessary wear on the engine parts.
○ Abnormal fuel consumption.
Clean the air filter daily or more often if working in
exceptionally dusty areas.
Cleaning the air fi lter
Remove the air fi lter cover (35) and the cleaner sponge
(36). Turn the air fi lter (37) 20° counter-clockwise and
remove. Then remove the cleaner sponge (38).
Rinse them 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.
Spark plug (Fig. 34)
The spark plug condition is infl 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
diffi culties. If the engine is low on power, diffi 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. Readjust 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.
English
38
37
36
35
Fig. 33
15