MAINTENANCE SRM-2320T
42 X7732278300
© 08/2019 ECHO Inc.
When the wear indicators 
located at the bottom of the 
Speed-Feed
®
 head are worn 
smooth, or if holes appear, 
replacement of the cover or the 
entire Speed-Feed
®
 head is 
required.
Sharpening Metal Blades
Several styles of metal blades are 
approved for use on the Brush 
Cutter. The 8-tooth blade can be 
sharpened during normal 
maintenance. The clearing blade 
and 80-tooth blade require 
professional service.
Before sharpening, CLOSELY 
inspect blade for cracks (look at the 
bottom of each tooth and the center 
mounting hole closely), missing 
teeth and bending. If ANY of these 
problems are discovered, replace 
the blade.
When sharpening a blade, always 
remove the same amount of materials from each tooth to maintain balance. 
A blade that is not balanced will cause unsafe handling due to vibration and 
can result in blade failure.
1. File each tooth at a 30° angle a 
specific number of times, e.g., 
four strokes per tooth. Work 
your way around the blade until 
all teeth are sharp.
2. DO NOT file the ‘gullet’ (radius) 
of the tooth with the flat file. The 
radius must remain. A sharp 
corner will lead to a crack and 
blade failure.