Echo CS-680 instruction manual Felling the Tree

Page 20

3 m (10 feet)

 

Direction of fall

Retreat

 

45°

 

45°

 

Retreat

Not this way

Direction of fall

Hinge

5 cm (2 in.)

First cut

Felling cut

Notch

5 cm (2 in.)

Second cut

One-third tree diameter

3

1

2

FELLING THE TREE

A falling tree can seriously damage anything it may hit - a car, a house, a fence, a power-line, or another tree.

There are ways to make a tree fall where you want it, so first decide where that is!

Before cutting, clear the area around the tree. You will need good footing while working and you should be able to work the saw without hitting any obstacles.

Next, select a path of retreat.

When the tree begins to fall you should retreat away from the direction of fall at a 45-degree angle and at least 3 m (10 feet) from the trunk to avoid the trunk kicking back over the stump.

Begin the cut on the side to which the tree is to fall. Cut a notch about 1/3 of the way into the tree. The position of this notch is important since the tree will try to fall “into” the notch.

The felling cut is made on the side opposite the notch and at a level about 5 cm (2 in.) above the bottom of the notch.

Do not try to cut through to the notch with the felling cut.

The remaining wood between the notch cut and felling cut about 5 cm (2 in.) will act as a hinge when the tree falls, guiding it in the desired direction.

When the tree starts to fall, kill the engine, place the saw on the ground and make your retreat quickly.

To fell big trees with a diameter exceeding twice the bar length, start the notching cuts from one side and draw the saw through to the other side of the notch.

Start the back cut on one side of the tree, pivoting the saw through to form the desired hinge on that side.

Then remove the saw for the second cut. Insert the saw in the first cut, very carefully so as not to cause kickback.

The final cut is made by drawing the saw forward in the cut to reach the hinge.

CS-680

18

Image 20
Contents ECHO, Incorporated X750-012 20 X750 316-510Copyright 2008 All Rights Reserved Rules for Safe Operation CS-680Other Safety Precautions Contents Symbols and SignsSymbol Form StopDecals Idle speedEcho chain saw Warranty sheetPacking List Nomenclature of Parts X505-002041 Part NumberChain tension adjuster Device to adjust Manual oil pump Device for proper lubrication of chainOperator Safety Safety Requirement for chain saws Correct USE of Chain BrakeSpark Arrestor Muffler Ansi Standard B175.1Guide BAR and SAW Chain INSTALLATION/REMOVAL Preparation for USEAdjusting Chain Tension Gasoline Oil Gallons US. fl. oz 160 12.8 400 Fuel and LubricantFuel Statement Emission Control Emission DataHandling Fuel Operation Chain LubricantCap indication ChokeWhen the Engine is Cold When the Engine is WarmOpen firing sound, pull throttle trigger to release chokeRunning StoppingChecking Chain Tension Chain Lubrication TestKickback Cutting InstructionGeneral Felling the Tree Uphill position Finish cut First cut Board or flat stones LimbingBucking Testing the Brake Chain Brake OperationChain brake function Chain brake unlockStop the engine Automatic Chain BrakeWinter Operation SAW Chain Chain and Guide BAR CombinationGuide BAR Maintenance and Care Maintenance IntervalsComponent / system Maintenance procedure Skill LevelsCarburetor Adjustment Idle adjusting screw High speed needle H Low speed needle LCS-680 Cutting attachment must not move when unit is idling Turn screw out, CCW, an additional ¼ turnAIR Filter Check Fuel SystemSpark Plug Fuel FilterSprocket Cylinder FinsMuffler Spark Arrestor Automatic OilerHold the file tipped 10 upward Setting the SAW ChainSetting SAW Chain CS-680 Cause Remedy TroubleshootingProblem Ss 3TOREOIN a DRY Area Freerfrom DUST Technical DataStorage After USE 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.