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 the same type of spark plug for
replacement.
Cutter blade (Fig. 12, 13)
The blades are installed to the cutter guide with the
four or fi ve bolts. Those bolts are tightened with a
clearance so that the cutters can move smoothly.
Fig. 12
Fig. 13
When clearance is too small
The cutters do not move properly and the sliding
surfaces may seize.
When clearance is too large
The cutters are poor in sharpness.
To adjust the cutter clearance
1. Loosen the cutter fi xing nuts.
2. Fully tighten the cutter fi xing bolts and then
loosen them approx. 1/2 turn.
3. With the bolts set at that position, tighten the
cutter fi xing nuts.
Be sure to replace cutter guide fi xing bolts when
they are loosened, worn or damaged. Also be sure
to replace damaged cutter blade.
NOTE
Properly lubricate the cutter sliding surfaces with
machine oil.
Gear case (Fig. 14)
Apply a good quality lithium based grease through
the grease fi tting until a small amount comes out
between the cutter blades and the gear case.
Fig. 14
NOTE
Lubrication should be applied at 20 hour intervals
and more frequently with heavy use.
Fuel fi lter (Fig. 15)
Remove the fuel fi lter from the fuel tank and
thoroughly wash it in solvent. After that, push the
fi lter into the tank completely.
Fig. 15
NOTE
If the fi lter is hard due to dust and dirt, replace it.
Cleaning the cylinder fi ns (Fig. 16)
When leaves get caught between cylinder fi ns (9),
the engine may overheat, resulting in lower output.
To avoid this, always keep cylinder fi ns and fan case
clean.
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.
10
000BookTHT-210SBUS.indb10000BookTHT-210SBUS.indb10 2009/10/2714:56:052009/10/2714:56:05
To Next Page
Loading...
Need help?
General
