Echo CS-680 Chain Brake Operation, Testing the Brake, Chain brake function, Chain brake unlock

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Kickback motion

Improper thrust cutting

Kickback motion

When the bar nose hits another tree, etc.

Chain brake function

When the lever is pushed forward, chain brake instantly stops the chain.

Chain brake unlock

When the lever is fully pulled toward the operator, brake is unlocked.

CHAIN BRAKE OPERATION

ss3ETETHE LEVEREIN THE UNLOCKEDIPOSITION BEFOREN starting to cut.

ss)F THE BRAKE ISBTRIPPEDEBY KICKBACKRREACTION DTHEB chain will stop immediately. Release the throttle to avoid possible damage to the engine or clutch.

ss$O NOT ATTEMPT TOTOPERATEPTHE ENGINE WITHETHEA brake locked.

TESTING THE BRAKE

ss3TARTATHETENGINE ON AESOLIDILEVEL SURFACEAANDSRUNL at a fast idle until warm.

ss(OLD THE SAW lRMLY BYATHE HANDLESLAND accelerate the engine to a fast idle.

ss3LOWLY OPERATE THE CHAIN BRAKE LEVER WHILE holding the saw firmly on the ground.

When the brake lever trips, the chain should stop.

Immediately release the throttle trigger.

WARNING

If the chain does not stop immediately, return the saw to your authorized ECHO dealer for repair.

NOTICE

ssFor practice, while cutting a small tree, push the lever forward to lock the brake.

ssConfirm that the brake works properly before each use.

ssIf the chain brake is clogged with wood chips, function of the brake may deteriorate. Always keep the device clean.

ssDo not increase engine revolution while the chain brake is locked.

ssUse the chain brake only in starting or in emergencies.

ssWhen using throttle latch at starting, keep the chain brake locked.

And after starting the engine, unlock the brake immediately.

IMPORTANT

Do not allow the saw to tip forward in order to avoid damage to the chain.

CS-680

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Contents ECHO, Incorporated X750-012 20 X750 316-510Copyright 2008 All Rights Reserved Rules for Safe Operation CS-680Other Safety Precautions Contents Symbols and SignsDecals Symbol FormStop Idle speedPacking List Warranty sheetEcho chain saw Nomenclature of Parts X505-002041 Part NumberChain tension adjuster Device to adjust Manual oil pump Device for proper lubrication of chainOperator Safety Spark Arrestor Muffler Safety Requirement for chain sawsCorrect USE of Chain Brake Ansi Standard B175.1Guide BAR and SAW Chain INSTALLATION/REMOVAL Preparation for USEAdjusting Chain Tension Fuel Statement Fuel and LubricantGasoline Oil Gallons US. fl. oz 160 12.8 400 Handling Fuel Emission DataEmission Control Cap indication OperationChain Lubricant ChokeOpen When the Engine is ColdWhen the Engine is Warm firing sound, pull throttle trigger to release chokeChecking Chain Tension RunningStopping Chain Lubrication TestGeneral Cutting InstructionKickback Felling the Tree Bucking LimbingUphill position Finish cut First cut Board or flat stones Chain brake function Testing the BrakeChain Brake Operation Chain brake unlockWinter Operation Automatic Chain BrakeStop the engine Guide BAR Chain and Guide BAR CombinationSAW Chain Component / system Maintenance procedure Maintenance and CareMaintenance Intervals Skill LevelsCS-680 Cutting attachment must not move when unit is idling Carburetor AdjustmentIdle adjusting screw High speed needle H Low speed needle L Turn screw out, CCW, an additional ¼ turnSpark Plug AIR FilterCheck Fuel System Fuel FilterMuffler Spark Arrestor SprocketCylinder Fins Automatic OilerSetting SAW Chain Setting the SAW ChainHold the file tipped 10 upward CS-680 Problem TroubleshootingCause Remedy Storage After USE Technical DataSs 3TOREOIN a DRY Area Freerfrom DUST Warranty Statements ExceptionsPurchased Repair PARTS, Short Blocks and Accessories CS-680 C03203001001/C03203999999
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CS-680 specifications

The Echo CS-680 is a powerful and versatile chainsaw designed for both professional arborists and enthusiastic homeowners. Renowned for its reliability, performance, and ease of use, the CS-680 stands out in the competitive chainsaw market. It is particularly useful for those who need to tackle demanding cutting tasks while ensuring precision and control.

One of the main features of the CS-680 is its robust 67.9 cc engine, which provides an impressive power-to-weight ratio. This high-displacement engine delivers ample torque and speed, enabling users to easily cut through hardwoods and take on larger cutting projects. The chainsaw’s engine is equipped with a patented decompression valve that ensures easier starts, especially in cold weather. This feature significantly reduces the effort required to pull the starter rope, making it an excellent choice for users who may not have the strength of professional operators.

The Echo CS-680 comes with a 20-inch bar, allowing for deep cuts while maintaining maneuverability. Its precision-engineered chain ensures clean cuts and reduces kickback, enhancing safety during operation. The saw's automatic chain lubrication system keeps the chain properly lubricated during use, increasing its lifespan and performance. Additionally, the side-access chain tensioner allows for quick and easy adjustments without the need for additional tools, ensuring minimal downtime during projects.

Another notable characteristic of the CS-680 is its vibration-dampening technology. This system reduces the amount of vibration transmitted to the operator, leading to enhanced comfort during long periods of use. This is especially beneficial for professionals who rely heavily on their tools and need to mitigate fatigue.

The construction of the Echo CS-680 incorporates high-quality materials, providing rugged reliability. It features a heavy-duty air filter system that extends engine life by ensuring maximum air cleanliness. The chainsaw is also designed with a lightweight yet durable frame, making it easy to handle while still being tough enough to withstand the rigors of heavy use.

In summary, the Echo CS-680 chainsaw combines power, efficiency, and user-friendly features, making it an excellent choice for anyone looking to tackle serious cutting tasks with confidence. Its innovative technologies and engineering provide reliability and performance, ensuring it can handle the toughest jobs while remaining comfortable for the operator. Whether for professional or personal use, the Echo CS-680 is a dependable tool that meets the demands of its users.