Echo CS-400F instruction manual Limbing

Page 25

CS-400F

OPERATION

 

 

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

Direction of fall

Hinge 5 cm (2 in.)

First cut

Felling cut

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.

Notch

Second cut

5 cm (2 in.)

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.

One-third tree diameter

3

1

2

Limbing

Limbing a fallen tree is much the same as bucking. Never stand on the tree that you are limbing. When limbing, caution is the word. Be careful of the tip touching other limbs. Always use both hands.

Don’t cut with the saw overhead or aligned vertically with your body. If the saw should kickback, you may not have enough control to prevent possible injury.

X7503253302

25

© 12/2013 ECHO Inc.

Image 25
Contents Burn Hazard Chain SAWTable of Contents CS-400F Packing ListRules For Safe Operation SafetyCorrect Use Of Chain Brake Testing The BrakeChain Brake Operation Automatic Chain Brake Other Safety PrecautionsCS-400F Personal Condition and Safety Equipment Repetitive Stress Injuries Vibration and ColdSafety Hot Surface Symbols and SignsEmission Control Exhaust / Evaporative Manual Safety Symbols and Important InformationEPA 2010 and Later and/or C.A.R.B. Tier Product Emission Durability Emission Compliance PeriodDescription Description Preparation For Use Guide Bar and Saw Chain Installation/RemovalTip Guard to Bar Instructions Description Adjusting Chain Tension Fuel OperationFuel Requirements Handling FuelMixing Instructions Chain LubricantStarting Cold Engine Winter OperationSevere brake damage will result Running Starting Warm EngineChecking Chain Tension StoppingChain Lubrication Test Cutting InstructionsFelling The Tree Limbing Bucking Guide Bar Chain And Guide Bar CombinationSaw Chain Maintenance Intervals MaintenanceSkill Levels Engine Break-In Carburetor AdjustmentSpark Plug Air FilterCheck Fuel System Fuel FilterOil Filter Automatic OilerDecrease Increase Sprocket Cooling System CleaningSpark Arrestor Muffler Spark Arrestor Screen Exhaust Port CleaningSetting Saw Chain Setting The Saw ChainMaintenance Engine Problem Troubleshooting Chart TroubleshootingStorage After Use StorageNGK BPM8Y Technical DataExceptions Warranty StatementsWarranty Statements CS-400F CS-400F Warranty Registration Additional or Replacement Manuals ServiceServicing Information Parts/Serial NumberECHO, Incorporated