Echo SRM-310S Operator's Manual page 17

Plastic/Nylon Grass/Weed Blades may be used wherever the nylon line
head is used. DO NOT use these blades for heavy weeds or brush!
8 Tooth Grass/Weed Blade - use for grass, garden vegetation, and thick
weeds. DO NOT use this blade for brush or heavy woody growth, 19
mm (3/4 in.) diameter or larger. P/N 69600120331
80 Tooth Brush Blade - use for cutting brush and woody growth up to
64 mm (2-1/2 in.) diameter. P/N 69500120330
22 Tooth Clearing Blade - use for dense thickets and saplings up to 64
mm (2-1/2 in.) diameter. P/N 99944200130
Shoulder/Waist Harness (P/N 30100052131) Use of the Shoulder/Waist
Harness is required for blade operation, and is recommended for ALL
Trimmer/Brush Cutter use.
The Shoulder/Waist Harness suspends the trimmer from the operator's
shoulder, and reduces operator fatigue during nylon line trimming or
cutting with a blade.
Operator safety is also enhanced by restricting trimmer movement and
preventing blade or line contact with the operator's hands and feet
during operation.
NOTE
In case of Emergency, the trimmer/brushcutter can be released from
the the harness by pulling up on the quick-release collar.
G T
RASS RIMMER
O
PERATOR
/B C
RUSH UTTER
' M
S ANUAL
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