Echo SRM-3020U Operator's Manual page 25

SRM-3020U OPERATION
8 Tooth Weed/Grass Blade is
designed for grass, garden debris
and thick weeds up to 19 mm
(0.75 in.) diameter. DO NOT use
this blade for brush or heavy woody
growth.
80 Tooth Brush Blade is designed
for cutting brush and woody growth
up to 13 mm (0.5 in.) diameter.
22 Tooth Clearing Blade is
designed for dense thickets and
saplings up to 64 mm (2.5 in.)
diameter.
A trimmer-brushcutter with a metal blade can cause serious
injuries if handled improperly.
Always use extreme care when
carrying or handling the equipment
to avoid contact with the cutting
edges of the blade. Use the optional
blade cover when unit is not in use.
Keep blades in protective packaging
until ready to install. Store blades
safely after removal to prevent injury
from accidental contact.
Use blade protectors to protect
blade teeth during unit
transportation.
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