Echo SRM - 230 Operator's Manual page 13

Choosing the Correct Blade
WARNING
The type of Blade used MUST be matched to the type and size of material cut. An improper or dull blade can cause
serious personal injury. Blades MUST be sharp. Dull blades increase the chance of kick-out and injury to yourself
and bystanders.
Plastic/Nylon blades may be used where ever the nylon line head
is used. DO NOT use this blade for heavy weeds or brush!
8 Tooth Grass and Weed Blade is designed for grass, garden debris and
thick weeds up to 19 mm (3/4") 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 (1/2 in.) diameter.
22 Tooth Clearing blade is designed for dense thickets and saplings up
to 64 mm (2-1/2 in.) diameter.
Use Shoulder/Waist harness Use of the Shoulder/Waist Harness is
recommended for ALL Trimmer/Brush Cutter use. The Shoulder/Waist
Harness suspends the trimmer from the operator's shoulder and reduces
operator fatigue.
The restrictive harness enhances operator safety by reducing the pos-
sibility of blade contact with the operator's hands and feet.
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