Zenoah BK3420FL-EZ - Manual (Page 18)

18
6. Operation
■ WHEN USING A METAL BLADE
• Swing the blade from right to left to cut grass.
• To cut usual grass, use the part of the blade
corresponding to 1/2 of the diameter of the blade. To
cut tough weeds such as Japanese pampas grass and
Solidago altisima, use the part of the blade
corresponding to 1/3 of the diameter of the blade.
• Adjust the rotation speed of the engine in accordance
with the resistance of grass. Cut young grass at
middle speed, and cut tough and thick grass such as
Japanese mugwort and vines at high speed.
Operating the engine at low speed might cause grass,
weeds or twigs to be caught up in the blade. It also wears
down the clutch more quickly.
■ SELECTION OF BLADE
• When cutting branches and plants, always use a
saw blade, and never use an eight-tooth blade or a
four-tooth blade.
• If you cut grass and plants with the wrong type or
size of blade, the blade might damage the shaft
and external pipe of this machine.
WARNING
IMPORTANT
OP9
Under growth
Heavy weeds
Light weeds
Grass
Nylon line head
CUTTER APPLICATION CHART
Saw blade 8-teeth blade 4-teeth blade 2-teeth blade
Select an appropriate blade to suit the material being cut.
For details, refer to the operating manual supplied with each blade.
Usable area of the blade
Area to be used
for cutting
young grass
Area to be used
for cutting
tough grass