Instructions / Assembly
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© 1/2017 ECHO Inc.
CS-400 OPERATION
Only use saw chain designated as, “LOW-KICKBACK,” that meets 
ANSI B175.1 or CSA Z62.1, .3 Standard when tested on the 
representative sample of chain saws below 3.8 C.I.D., and Echo 
guide bar specified.
Chain and guide bar gauge size must be identical. Use Bar/Chain 
combinations shown in table above.
If your tip guard is damaged or lost, contact your Echo dealer for a 
replacement. For the name of the Echo dealer nearest you, Call: 1-800-
432-ECHO (3246) or on the web at www.echo-usa.com
.
Refer to your Chain Saw Safety Manual for tip guard application information.
Guide Bar
(Low-kickback)
Replacement guide bars.
The following guide bars may be considered to have equivalent kickback 
energy.
• Sprocket nose guide bars of the same length and nose radius, same pitch 
and having the same number of teeth.
• Hard nose guide bars of the same length and nose radius as a sprocket nose 
bar.
Saw Chain
(Low-kickback)
Do not use replacement saw chain unless it has been designated 
as meeting ANSI B175.1 or CSA Z62.1, .3 kickback performance 
requirements, when tested on the representative sample of chain 
saws below 3.8 c.i.d. specified in ANSI B175.1 or CSA 62.1, .3.
Note: LOW KICKBACK SAW CHAIN meets the kickback performance 
requirements of ANSI B175.1 or CSA 62.1, .3 (safety 
requirements for gasoline-powered chain saws).










