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CS-310 OPERATION
© 08/2013 ECHO Inc.
X7503270007 27
Chain And Guide Bar Combination
The following combinations are recommended for model CS-310.
Use of replacement saw chain and/or guide bar other than that specified, or operation without the
“tip guard” in place, may cause severe kickback resulting in serious injury.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).
Guide Bar Saw Chain
Length mm (in.)
ECHO Part No.
Pitch mm (in.) Type Links
Low-kickback
305 (12) 12A0CD3745 9.53 (3/8) 91PX / 91VG 45
356 (14) 14A0CD3752 9.53 (3/8) 91PX / 91VG 52
406 (16) 16A0CD3757 9.53 (3/8) 91PX / 91VG 57