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© 09/2013 ECHO Inc.
OPERATION CS-450
Chain And Guide Bar Combination
The following combinations are recommended for model CS-450.
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 replacement
guide bar and saw chain that has been designated as meeting the ANSI B175.1 and/or CSA Z62.3
requirements. All of the guide bar and chain combinations listed above meet the ANSI B175.1 and/or
CSA Z62.3 requirements.
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 the ANSI B175.1
kickback performance requirements, when tested on the representative sample of chain saws below
3.8 c.i.d. specified in ANSI B175.1.
Note: LOW KICKBACK SAW CHAIN meets the kickback perf ormance requirements of ANSI B175.1 (safety
requirements for gasoline-powered chain saws).
Model Bar Length in.
(mm)
Guide Bar Saw Chain
ECHO P/N ECHO Part No. Links Pitch in. (mm) Gauge
CS-450
16 (406 ) 16F0AD3366 20BPX66CQ 66 0.325 (8.26) 0.050
16F0MD3366 95VP66CQ
18 (457) 18F0AD3372 20BPX72CQ 72 0.325 (8.26) 0.050
18F0MD3372 95VP72CQ
20 (508) 20F0AD3378 20BPX78CQ 78 0.325 (8.26) 0.050