Jonsered CS 2250S, CS 2245S manual Tree felling technique, Limbing, Safe distance

Page 26

WORKING TECHNIQUES

Limbing

When limbing thick branches you should use the same approach as for cutting.

Cut difficult branches piece by piece.

12

3

Cutting

WARNING! Never attempt to cut logs

! while they are in a pile or when a couple of logs are lying together. Such procedures drastically increase the risk of kickback which can result in a serious or fatal injury.

If you have a pile of logs, each log you attempt to cut should be removed from the pile, placed on a saw horse or runners and cut individually.

Remove the cut pieces from the cutting area. By leaving them in the cutting area, you increase the risk for inadvertently getting a kickback, as well as increasing the risk of losing your balance while working.

The log is lying on the ground. There is little risk of the chain jamming or the object splitting. However there is a risk that the chain will touch the ground when you finish the cut.

Cut all the way through the log from above. Avoid letting the chain touch the ground as you finish the cut. Maintain full throttle but be prepared for what might happen.

If it is possible (can you turn the log?) stop cutting about 2/3 of the way through the log.

Turn the log and finish the cut from the opposite side.

The log is supported at one end. There is a high risk

that it will split.

Start by cutting from below (about 1/3 of the way through).

Finish by cutting from above so that the two cuts meet.

The log is supported at both ends. There is a high risk that the chain will jam.

Start by cutting from above (about 1/3 of the way through).

Finish by cutting from below so that the two cuts meet.

Tree felling technique

IMPORTANT! It takes a lot of experience to fell a tree. Inexperienced users of chain saws should not fell trees. Do not attempt any task beyond your experience level!

Safe distance

The safe distance between a tree that is to be felled and anyone else working nearby is at least 2 1/2 tree lengths. Make sure that no-one else is in this ”risk zone” before or during felling.

26 – English

Page 25 Page 27
Image 26
Page 25 Page 27
Contents CS 2245S Symbols in the operator’s manual KEY to SymbolsSymbols on the machine You will find the following labels on your chain sawContents Introduction Dear customerWhat is WHAT? What is what on the chain saw?General Safety Precautions Before using a new chain sawPersonal protective equipment Machine′s safety equipmentAlways use common sense Chain brake and front hand guardGeneral Safety Precautions Right hand guard Throttle lockoutChain catcher Vibration damping system Stop switchCutting equipment MufflerChain Cutting equipment designed to reduce kickbackBar Sharpening your chain and adjusting depth gauge setting General information on sharpening cutting teethTensioning the chain Lubricating cutting equipment CS 2245S, CS 2250SChain drive sprocket Filling with chain oilChecking chain lubrication Needle bearing lubrication Checking wear on cutting equipmentWorking with the chain AssemblyFitting the bar and chain Assembly Fuel Handling FuelTransport and storage Fuel safetyFueling Long-term storageStarting Starting and StoppingStarting and stopping Warm engineStopping Before use Basic safety rulesWorking Techniques General working instructionsGeneral rules Basic cutting technique TermsLog is supported at one end. There is a high risk Tree felling techniqueLimbing Safe distanceDirectional cuts Felling directionClearing the trunk and preparing your retreat Felling cut Freeing a tree that has fallen badly How to avoid kickbackWhat is kickback? Cutting the trunk into logs General MaintenanceCarburetor adjustment Checking the inertia brake release Muffler Tensioning the recoil spring StarterReplacing the starter cord Fitting the starter Air filterReplacing the return and drive springs Needle bearing lubrication Spark plugLubricating the bar tip sprocket Cooling systemWinter use Turbo Air Cleaning centrifugal cleaningTemperature -5C 23F or colder Maintenance schedule Daily maintenance Weekly maintenance Monthly maintenanceTechnical Data Technical data058/1,5 mm Bar and chain combinations050/1,3 mm Saw chain filing and file gauges Federal Emission Control Warranty Statement Repair or Replacement of Parts Repair orKickback safety precautions American Standard Safety PrecautionsSafety precautions for chain saw users Other safety precautions1151012-95
Top Page Image Contents