Echo SB Safety Manual page 36

OPERATION
Blade Sharpening
All blades must be kept sharp for best cutting perfor-
mance. 8 Tooth Grass/Weed blades can be sharpened
using the instructions in the Operator's Manual. Brush
and Clearing blades require professional sharpening.
Improper sharpening can cause blade failure and result
in severe injury.
PLASTIC/METAL TRI-CUT BLADES
Use blade set-up guide for configuring trimmer-
brushcutter to use plastic or metal tri-cut blades.
• Use Plastic tri-cut blades to cut grass and weeds
• Use Metal Tri-cut blades to cut reeds, large weeds,
and light brush
• Read, understand, and obey all trimmer-brushcutter
safety rules before using tri-cut blades.
• NEVER use tri-cut blades to cut heavy brush, sap-
lings, or small trees.
Plastic Tri-Cut Blade
PE Models
DANGER
Striking concrete or other hard materials with spinning edger blade can cause severe blade
damage or breakage, and serious or fatal injuries from flying fragments. Stop unit immediately
and check blade if an object is struck. Replace blade if broken, cracked, bent, chipped or
otherwise damaged, or if unit began shaking or vibrating after striking the object.
Small stones and other hard debris can be thrown from blade guard, and strike bystanders
and nearby buildings. Keep bystanders a minimum of 50 feet (15 m) away when operating
edger. Always keep flow of edging debris directed away from windows, parked vehicles,
buildings, and bystanders. Always operate edger with unit to right side of body only. Wear
eye protection, work gloves, and protective clothing. Use full face shield when edging in rocky
or debris-filled soil.
36
SRM Pro Maxi-Cut
SHARPENING
8-TOOTH
WEED/GRASS
BLADE
30° ANGLE
LEAVE 2MM
RADIUS
UNFILED
SHARP CORNER
GULLET MAY
CRACK
GT Maxi-Cut