tree felling techniques pdf

Plastic wedges and a STIHL axe built for felling are vital to maximizing the efficiency of your felling operation. Because of the hazards involved never work alone.

How To Determine The Chain Pitch Chainsaw Bar Chainsaw Chainsaw Chains

Make A Back Cut.

. Be sure to have a safe and clear work zone as well as a clearly defined exit path. 1995 - 628 - 027 40064 FM 5-125 Field Manual No. Find read and.

If the tree is wider than the guide bar supplement both the top and bottom cuts from the other side. TREE FELLING TECHNIQUES MANUAL This manual is an excerpt from the Forest Industry Safety and Training Alliance Loggers Safety Training Guide compiled by the Sustainable Resources Institute Inc. The chainsaw shouId have about 35 horsepower and it should have a 20 inch bar.

Takedown of hung up tree Figure 4. New techniques should be practiced before application. Choosing the right directional notch A directional notch can be done in many.

5-125 Headquarters Department of the Army Washington DC 3 October 1995 DISTRIBUTION RESTRICTION. Remember to saw right to the hinge width. Avoid walking directly behind the tree.

Taglines control wood during cutting and lowering Avoid obstacles and potential hazards Protect cutter and property Reduce work effort Plan - Cutting. Because of the hazards involved never work alone. Scarf backcut and hingewood.

Tree felling is a high risk activity. Download View Tree Felling Technique as PDF for free. Tree Felling Techniques Professional Ánd Need.

This IS NOT a substitute for proper safety training. Hands-on techniques for felling trees Basic Felling Techniques. Because of the hazards involved never work alone.

FELLING TECHNIQUES 20 Introduction 20 Definition 20 Objectives 20 Team 20 Equipment Materials 20 Considerations before felling a tree 21 Nine principles surrounding felling direction 21 Assessment of a standing tree Fig. The best way to stay safe is to be prepared. Plan - Cutting.

In such situations use mechanical assistance. The first step in felling a tree is to identify all the hazards around the tree such as structures power lines roads vehicles and other trees. Intermediate tree felling covers trees with single or multiple stems limited defects and lean and weight distribution that can be adapted to felling direction.

THE SCARF The scarf is important because it. The following Iist covers the máin pieces of équipment that would bé needed tó cut down á mature tree ón your property. Closer to the bole when felling trees and will help the sawyer watch the tip of the bar to prevent kickbacks.

PDF Improper tree felling techniques may reduce productivity and log supply. The bar Iength indicates the dépth that the bIade can penetrate só 20 inches should be. Tree Felling Rigging Felling and rigging is physical and potentially hazardous.

Form 12-11 E requirements for FM 5-125 Rigging Techniques Procedures and Applications Qty rqr block no. Also look for hazardous dead branches or rot on the tree being shrubdropclubg. When the directional notch has been made it is time to saw the felling cut towards the directional notch.

So before you start felling a tree learn about chainsaw safety the right equipment and how to carefully and accurately plan the felling. The technique used for making the felling cut depends on the thickness of the trunk and the length. The Tree Fallers Manual is an essential handbook for forest operators and others who need to fell trees manually using a hand-held chainsaw.

18 TREE FELLING Basic Felling Techniques T HERE are three essential parts you need to consider when felling any tree over 200 mm in diameter. Tree Felling Techniques Accurate tree felling takes practice to master. Rolling lodged tree Even proper lifting techniques and manual aid tools have their limitations when it comes to dealing with heavy loads.

Carefully assess the tree to decide the safest and most effective method of takedown and identify the danger areas around the tree. This cut should be made about 3 inches above the bottom of the V-shaped cut. If youre inexperienced or feel unsure get help and guidance from a professional.

41 The chain is more likely to be thrown when. The first step in felling a tree is to identify all the hazards around the tree such as structures power lines roads vehicles and other trees. Controls the direction of fall.

Many fatalities and serious injuries have occurred as a result of being struck by falling trees dislodged tree limbs or other. Advanced tree felling applies to larger and more complex trees and includes trees deemed to be more hazardous. Make sure to use plastic wedges as opposed to metal.

This manual builds on the information provided by the Chainsaw Operators Manual. Approved for public release. Outline Techniques For Felling Trees In A Direction Different From The Trees Natural Lean Insure Felling Safety Protect The Trees Board Feet Fence Barn Tree 34 D Side Head Desired Felling Direction Heavy Lean Other Trees Felling Direction Head Lean Felling Approach Redistribute The Trees Weight Using The Trees Structural Wood Use Only Readily Available.

This leads to an increase in production cost. Study the tree and its surroundings closely to determine which way to fell it. Because of the hazards involved never work alone.

Backcut and hingewood. Chapter 4Chain Saw Tasks and Techniques Figure 44Hazard trees such as leaners need to be removed to prevent anyone from working under them. Figure 45Double stumps have a high potential to cause kickback.

Make sure the area is clear of people and. Assess rigging points to ensure adequate strength If. On this page front and back are arbitrary terms the front being the side towards which the tree is intended to fall.

Tree felling can be dangerous. Workplace safety risk assessment and site preparation are included along with the theory techniques and tools for. Watch for falling material and be far enough from the base of the tree to avoid a kick back butt swing or bounce.

Make the back cut go deep into the middle but let it not meet the tip of the V-shaped cut in front. 81 Tree Felling Techniques Accurate tree felling takes practice to master. When your V-shaped cut is ready go to the opposite side of the tree and make another cut.

The first step in felling a tree is to identify all the hazards around the tree such as structures power lines roads vehicles and other trees. Plastic wedges are far less likely to dull your saw chain if it comes in contact with the wedge. The felling cut will normally be level with or slightly above the level of the directional notch.

25 26 Further reading 8 6 7 When. Lets look at these in turn. Tree Felling Techniques Accurate tree felling takes practice to master.

Also look for hazardous dead branches or rot on the tree being felled. Hingewood Backcut always above scarf. Remember to finish the felling cut on the safe side of the tree and use your escape route as soon as the tree begins to fall.

Assess the distribution of the weight on the crown and the space.

Tree Surgeon Arborist At Work Present Chainsaw Postcard