340S
OPERATION
© 8/2015 ECHO Inc.
X7503274701
17
3. Hold the bar nose up, and turn the adjuster screw (A) clockwise
until chain contacts underside of the bar.
4. Tighten nuts with the bar nose held up.
5. Pull the chain around the bar by hand. Loosen the adjustment if
you feel tight spots.
Tighten guide bar nuts to 20 - 23 N•m (175 - 200 in•lbf). DO NOT
over-tighten nuts. Damage to saw may result.
6. Assemble components in reverse order.
7. Keep chain properly tensioned at all times.
Note: All chains require frequent adjustments.
OPERATION
Fuel
Diesel fuels and alternative fuels, such as E15 (15% ethanol), E-85 (85% ethanol) or any fuels not
meeting Shindaiwa requirements are NOT approved for use in Shindaiwa 2-stroke or Hybrid 4-stroke
gasoline engines. Use of diesel or alternative fuels may cause performance problems, loss of power,
overheating, fuel vapor lock, and unintended machine operation, including, but not limited to,
improper clutch engagement. Diesel or alternative fuels may also cause premature deterioration of
fuel lines, gaskets, carburetors and other engine components.
Fuel Requirements
Gasoline
- Use 89 Octane [R+M/2] (mid grade or higher) gasoline known to be good quality. Gasoline may
contain up to 10% Ethanol (grain alcohol) or 15% MTBE (methyl tertiary-butyl ether). Gasoline containing
methanol (wood alcohol) is NOT approved. ECHO brand Power Fuel
™
is 93 octane, ethanol-free fuel
premixed with ECHO Red Armor
®
engine oil at 50:1 ratio. Use of ECHO Power Fuel
™
is recommended to
extend engine life in all air-cooled 2-stroke and 2/4-stroke hybrid engines.
A
