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OPERATORS IN STEEP SLOPE LOGGING AND SAFETY …

• Feller-Buncher with Choker Setting and Yarding • Feller-Buncher with Shovel Logging • Feller-Buncher with Mechanized Grapple Yarding ... • Pressure cell non-tethered tests with Tigercat 855 and 522 at OSU on different slopes and boom positions • Data Analysis and Model Building.

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Forest Operations Equipment Catalog: Tethered Logging Systems

Tethered logging systems utilize cable winch systems on harvesters, feller bunchers, forwarders, loaders, and skidders to stabilize and assist equipment operations on steep slopes. The cable system allows the equipment to operate on slopes that would normally be considered unsafe for equipment or damaging to soils.

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Tethered machines up and running

 · The tethered machines have significantly reduced tracking, as the tether allows the feller/buncher to move stems to a suitable area for the skidder to pick up. It also allows the operator to directionally fell trees away from waterways and other protected areas. Consequently, the tethered machines are not only safer but can provide a much.

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Theoretical Stability and Traction of Steep Slope Tethered

The primary technique that has been developed and employed consists of cable-assisted, or "tethered," feller-bunchers, which use tension in a wire rope anchored upslope to assist with traction.

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Forest Operations Equipment Catalog: Forwarders

The whole tree system consisted of a feller buncher, skidder, stroke processor, loader and chipper. The cut-to-length system included a harvester, forwarder, loader and chipper. A hybrid system combined a feller buncher and harvester to produce bunches of small whole trees for fuel, and bunches of long, delimbed sawlogs.

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The Potential Effects of Tethered

Tethered feller-bunchers use one of two winching mechanisms: integral winching systems, those installed on the feller-buncher; or on a separate winch carrier, installed at a landing or clearing on top of the harvesting area (Sessions et al., ). When using the integral winching system, the winching mechanism is usually attached to a stump.

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Introduction of Tethered Feller

Coastline Forestry Group Inc. v United Steelworkers, Local 1-, CanLII (BC LA) The employer introduced tethered feller-bunchers (mechanical tree harvesters) in their operation during the same month it laid off its only two hand fallers. The tethering system enabled the feller-bunchers to harvest steeper slopes and rough terrain which previously required hand fallers. […].

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Forest Ecology and Management

yarding with tethered feller-bunchers, shovels, or both, but also may have included areas of hand-felling or un-tethered machines. Although units were harvested with different techniques, the steep portions of all the units would have been harvested using cable (conventional) systems prior to the introduction of the tethered technology.

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Used Feller Bunchers for sale. John and Tigercat

522B Feller Buncher. Manufacturer: ; Model: 522B; Good condition 522B Feller Bunchers available between and years. Located in USA and other countries. Click request price for more information.

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LX830D Compact Levelling Feller Buncher

The LX830D is a powerful and stable leveling feller buncher with compact tail swing. Equipped with the Tigercat FPT Tier 4f engine, it conforms to the latest emissions standards in North America and Europe. The LX830D is well suited to steep slope thinning and final felling applications.

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Soil Disturbance Effects from Tethered Forwarding on Steep

grapple yarding and found increased grapple yarder productivity using the tethered feller-buncher to bunch the stems because the yarder was able to grapple more stems at once [25,26]. The safety benefits gained from tethered logging have not been studied in-depth [9,27,28]. However, tethered.

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Forest Operations Equipment Catalog: Felling Heads

Bunching heads, used on feller bunchers, have the ability to hold more than one stem at a time while cutting. They come in a variety of styles and configurations based on their method of cutting. There are three styles of cutting method employed by bunching heads: disc saw, bar saw, and shear.

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Forest Operations Equipment Catalog: Feller Buncher

Feller Buncher Description. A feller buncher is a self-propelled machine with a cutting head that is capable of holding more than one stem at a time. The cutting head is used strictly for cutting, holding, and placing the stems on the ground. Feller bunchers do not ….

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Theoretical Stability and Traction of Steep Slope Tethered

 · Tethered feller-bunchers use one of two potential winching mechanisms. Winch systems are either installed on the feller-buncher (called an integral winch system) or on a separate winch carrier placed at a landing or clearing at the top of the harvest unit. For integral winch systems, the tether line is usually attached to a stump, deadman, or.

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959M

The 959M Tracked Feller Buncher can help lower daily operating costs and simplify maintenance. View brochure, compare competitive specs and build your own.

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Felling Attachments & Heads

Tigercat builds a full line of innovative felling attachments designed to match the high performance and productivity of Tigercat carriers. The product range includes disc saw and shear felling heads, fixed wrist and directional bar saw felling heads, and a growing line of harvesting heads.

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Soil disturbance and stream

 · Combined sites included harvesting and/or yarding with tethered feller-bunchers, shovels, or both, but also may have included areas of hand-felling or un-tethered machines. Although units were harvested with different techniques, the steep portions of all the units would have been harvested using cable (conventional) systems prior to the.

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Overview of Forestry Equipment

Feller Bunchers. Feller bunchers are self-propelled machines with a single cutting head. Capable of gripping more than a single stem at once, the cutting heads function only as a cutting, holding and ground placement device. They do not have processing capabilities. Feller bunchers are propelled by ….

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Oregon OSHA's

A traction system ensures that the track speed of the feller buncher matches winch speed of the cable. That's essentially the way tethered, or winch-assisted, logging works. The practice of tethered logging began in Europe and has spread to New Zealand, Chile, and the Pacific Northwest where logging sites with slopes in excess of 50 degrees.

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OPERATORS IN STEEP SLOPE LOGGING AND SAFETY …

• Feller-Buncher with Choker Setting and Yarding • Feller-Buncher with Shovel Logging • Feller-Buncher with Mechanized Grapple Yarding ... • Pressure cell non-tethered tests with Tigercat 855 and 522 at OSU on different slopes and boom positions • Data Analysis and Model Building.

Online consultation

Track Feller Bunchers

Tigercat track feller bunchers are field-proven in some of the harshest applications and climates on the planet from Siberia to equatorial Brazil. View the full line of track feller bunchers, ranging from minimal to full tail-swing. 822D Feller Buncher. LX830D Feller Buncher. 845E Feller Buncher.

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Arbitration Archives

Introduction of Tethered Feller-Bunchers which Eliminated Hand Faller Positions was a Technological Change Posted on September 13, March 20, by banister Coastline Forestry Group Inc. v United Steelworkers, Local 1-, CanLII (BC LA) The employer introduced tethered feller-bunchers (mechanical tree harvesters) in their.

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Felling Attachments & Heads

Tigercat builds a full line of innovative felling attachments designed to match the high performance and productivity of Tigercat carriers. The product range includes disc saw and shear felling heads, fixed wrist and directional bar saw felling heads, and a growing line of harvesting heads.

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Stability And Traction Of Steep Slope Tethered Feller

This is due to the safety and productivity concerns regarding the use of manual felling on this terrain. One of the main new techniques developed involve the use of cable-assisted, or "tethered," feller-bunchers, which use tension in a wire rope which is anchored on the upslope to assist with traction and gradeability.

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Industrial Fire Precaution Levels IFPLs for Oregon

Non-rotary head saw feller-bunchers; Tethered logging systems (defined below). The following are permitted to operate between the hours of 8 P.M. and 1 P.M.:.

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