Operation Manual
24
CS-310
 WARNING 
Use of replacement saw chain and/or guide bar other than that specied, 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 the ANSI B175.1-2000 Standard when tested on 
the representative sample of chain saws below 3.8 C.I.D., and the Echo guide bar specied.
CHAIN AND GUIDE BAR COMBINATION
The following combinations are recommended for model CS-310. 
 GuideBar Sawchain
 Length ECHOPartNo. Pitch Type Links
 mm(in) DoubleGuard mm(in) (OREGON)
 305(12) 12A0CD3745 9.53(3/8) 91VG,91P 45
 356(14) 14A0CD3752 9.53(3/8) 91VG,91P 52
 406(16) 16A0CD3757 9.53(3/8) 91VG,91P 57
SAW CHAIN
(Low-kickback)
 CAUTION
Do not use replacement saw chain unless it has 
been designated as meeting the ANSI B175.1 - 2000 
kickbackperformancerequirements,whentested
on the representative sample of chain saws below 
3.8c.i.d.speciedinANSIB175.1-2000.
NOTE
LOW KICKBACK SAW CHAIN meets the 
kickback performance requirements of ANSI 
B175.1 - 2000 (safety requirements for gasoline-
powered chain saws).
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.
IMPORTANT
Chain and guide bar gauge size must be identical. Use Bar/Chain combinations shown in table above.
IMPORTANT
If your kick 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 kick guard application information.










