Echo SRM - 410U - Manual (Page 17)

G
rass
T
rimmer
/B
rush
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uTTer
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peraTOr
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17
Plastic/Nylon Grass/Weed blades may be used where ever the nylon
line head is used. DO NOT use this blade for heavy weeds or brush!
8 Tooth Weed/Grass blade is designed for grass, garden debris
and thick weeds. DO NOT use this blade for brush or heavy woody
growth, 19 mm (3/4 in.) diameter or larger.
80 Tooth brush blade is designed for cutting brush and woody growth
up to 13mm (3 in.) diameter.
22 Tooth Clearing blade is designed for dense thickets and saplings
up to 64 mm (3 in.) diameter.
WARNING
In case of emergency, pull the quick release latch to disconnect
the trimmer from the harness.
Use Shoulder/Waist harness Use of the Shoulder/Waist Harness is
recommended for ALL Trimmer/Brush Cutter use, not just Blade oper-
ation. The Shoulder/Waist Harness when used in a trimming operation
with nylon line head suspends the trimmer from the operator's shoulder
and reduces operator fatigue.
During blade operation, the same fatigue reduction is achieved. Safety
to the operator is also enhanced by reducing the possibility of blade
contact with the operator's hands and feet by restricting trimmer move-
ment