Echo chain saw cs-400 User Manual

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12.  Use extreme caution when cutting small size brush 

and saplings because slender material may catch 

the saw chain and be whipped toward you or pull 

you off balance.

13.  When cutting a limb that is under tension, be alert 

for spring-back so that you will not be struck when 

the tension in the wood fibers is released. 

14.  Keep the handles dry, clean, and free of oil or fuel 

mixture. 

15.  Operate the chain saw only in well ventilated 

areas. 

16.  Do not operate a chain saw in a tree unless you 

have been specifically trained to do so. 

17.  All chain saw service, other than items listed in 

the Instruction manual maintenance instructions, 

should be performed by competent service 

personnel.  

 

 

 

 

(For example, if improper tools are used to remove 

the flywheel or if an improper tool is used to 

hold the flywheel in order to remove the clutch, 

structural damage to the flywheel could occur and 

could subsequently cause the flywheel to burst.)

18.  When transporting your chain saw, use the 

appropriate guide bar scabbard.

19.  Spark arrestor mufflers approved to SAE Standard 

J335 are standard on ECHO chain saws to reduce 

the possibility of forest fires. 

 

 

Do not operate the chain saw with a loose or 

defective muffler.   Do not remove the spark 
arrestor screen.

 

  Using improper replacement components or removing safety devices may result in serious or fatal injury.

•

During operation, the muffler or catalytic muffler and surrounding cover become hot.

•

Never suspend the saw on a lanyard with the engine running.

•

Always use the saw from the right-hand side of your body – 

NEVER from the left side.

•

Always wear proper safety clothing to protect your lower body from sharp saw chain and 

hot muffler.

•

Always keep exhaust area clear of flammable debris during transportation or when storing, 

otherwise serious property damage or personal injury may result.

Moving parts can amputate fingers or cause severe injuries.  Keep hands, clothing and loose objects away from 

all openings.     

• 

ALWAYS stop engine, disconnect spark plug, and make sure all moving parts have come to a complete stop 

before removing obstructions, clearing debris, or servicing unit.

• 

DO NOT start or operate unit unless all guards and protective covers are properly assembled to unit.

• 

NEVER reach into any opening while the engine is running.  Moving parts may not be visible through openings.

Check fuel system for leaks due to fuel tank damage, especially if the unit is dropped. If damage or leaks are 

found, do not use unit, otherwise serious personal injury or property damage may occur. Have unit repaired by an 

authorized servicing dealer before using.