Zenoah BK3420FL-EZ - Manual (Page 20)

20
7. Maintenance
■ HOW TO SHARPEN THE BLADE
• When the blade has worn away and its edges have
become round, contact the shop where you
bought this product and ask it to sharpen the
edges. Sharpening the blade requires special
skills, and appropriate tools and techniques are
required.
• If you sharpen the blade yourself, be sure to round
off the blade edges to prevent the blade edge from
chipping.
• If you sharpen the blade with a sharpening
machine, the blade edges might become hot and
break into pieces if cooled in water, causing
danger. Allow the heated blade edges to cool
down naturally in air.
Be prepared for your cutting work by sharpening the blade,
for example, during lunchtime. When sharpening the blade,
use the tools specified in the left table.
WARNING
MA1
Kind of blade
Four-tooth blade
Eight-tooth blade
Circular-saw blade
Tools for
sharpening
the blade
Flat file and
pliers-grinder
File for adjusting
a sawtooth blade
■ BLADE (OPTION)
Blade is not included
• In order to carry out cutting work safely, be
sure to check the blade before you begin
and after you finish your work. If you
continue to use a blade which has become
loosened, chipped, cracked, broken, or
bent, such a blade might disintegrate and
broken pieces might hit you or adjacent
workers, causing a serious injury.
• Be sure to stop the engine before checking
the blade. If you check the blade with the
engine still in operation, the blade might
begin to rotate because of overturning of
the machine, etc.
WARNING
• When checking the blade, be sure to stop
the engine and wear gloves. Handling the
blade with bare hands might cause an
injury.
Do not use a blade which has worn away and has
become round. Such a blade does not cut well, and
grass and twigs easily wind themselves around it,
thus increasing the load on your arm during cutting
and affecting the fuel consumption and life-span of
the machine.
Be sure to check the blade before or after using the
machine. If anything is wrong with the blade, replace
it with a new one, or sharpen it again.
IMPORTANT
WARNING