PAS-225 MAINTENANCE
X7732274303 43
© 01/2020 ECHO Incorporated
When the wear indicators
located at the bottom of the
Speed-Feed® head are worn
smooth, or if holes appear,
replacement of the cover or the
entire Speed-Feed® head is
required.
Sharpening Metal Blades
Several styles of metal blades are
approved for use on the Brushcutter.
The 8-tooth blade can be sharpened
during normal maintenance. The
clearing blade and 80-tooth blade
require professional service.
Before sharpening, CLOSELY
inspect blade for cracks (look at the
bottom of each tooth and the center
mounting hole closely), missing
teeth and bending. If ANY of these
problems are discovered, replace
the blade.
When sharpening a blade, always remove the same amount of materials
from each tooth to maintain balance. A blade that is not balanced will cause
unsafe handling due to vibration and can result in blade failure.
1. File each tooth at a 30° angle a
specific number of times, e.g.,
four strokes per tooth. Work
your way around the blade until
all teeth are sharp.
2. DO NOT file the ‘gullet’ (radius)
of the tooth with the flat file. The
radius must remain. A sharp
corner will lead to a crack and
blade failure.
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