Homelite UT74121A manual Removing Buttress Roots, Bucking with a Wedge

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OPERATION

REMOVING BUTTRESS ROOTS

A buttress root is a large root extending from the trunk of the tree above the ground. Remove large buttress roots before felling. Make the horizontal cut into the buttress first, followed by the vertical cut. Remove the resulting loose section from the work area. Follow the correct tree felling procedure after you have removed the large buttress roots.Refer to “Operation – Proper Procedure for Tree Felling” earlier in this manual.

BUCKING

Bucking is the term used for cutting a fallen tree to the desired log length.

Cut only one log at a time.

Support small logs on a saw horse or another log while bucking.

Keep a clear cutting area. Make sure that no objects can contact the guide bar nose and chain during cutting; this can cause kick-back. To avoid the danger, keep the SAFE-T-TIP anti-kick-back device attached while cutting. Refer to “Safety – Kick-back” earlier in

this manual.

During bucking operations, stand on the uphill side so that the cut-off section of the log cannot roll over you.

Sometimes it is impossible to avoid pinching (with just standard cutting techniques) or difficult to predict which way a log will settle when cut.

BUCKING WITH A WEDGE

If the wood diameter is large enough for you to insert a soft bucking wedge without touching the chain, you should use the wedge to hold the cut open to prevent pinching.

NOTE: When bucking or felling with a wedge, you may need to remove the SAFE-T-TIP anti-kick-back device to allow the bar to be drawn through the cut. After you complete the cut, reinstall the tip.

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VERTICAL CUT

LOOSE

SECTION

HORIZONTAL

CUT

Fig. 34

KICK-BACK

Fig. 35

WEDGE

Fig. 36

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Contents OPERATOR’S Manual Save this Manual for Future ReferenceTable of Contents IntroductionGeneral Safety Rules Read ALL InstructionsDo not Operate a Chainsaw That is Damaged Safety Apparel Specific Safety RulesGeneral Precautions Basic Precautions in the CUTTING/ Work AreaKICK-BACK Maintenance PrecautionsPush and Pull Pull PushRUN SymbolsSymbol Name Explanation StopSpecifications Features LOW KICK-BACK SAW Chain Understanding Your Chainsaw Safety DevicesOperation Guide BarsRUN Position KICK-BACK PrecautionsChain Brake KICK-BACK Brake Position RotationalMixing the Fuel Fuel and RefuellingHandling the Fuel Safely Filling the TankStarting the Engine Brake Position Ignition Switch RUN Primer BulbChain OIL System See Figures 10 toStarting a Cold Engine Stopping the Engine Starting a Warm EngineChain Line Preparing for CuttingProper Grip on Handles Proper GripAdjusting the Carburettor Basic OPERATING/CUTTING ProceduresWork Area Precautions See Figures 24Operating the Chain Brake Adjusting Idling SpeedBrake Position RUN Position Felling Trees Hazardous Conditions Retreat PathPlanned Line of Fall Proper Procedure for Tree FellingRetreat Hinge Back CUT HingeNotch Approx /3 Diameter Trunk Back CUT WedgeBucking with a Wedge Removing Buttress RootsBucking Vertical CUT Loose Section Horizontal KICK-BACK WedgeUnderbucking Bucking Logs Under StressOverbucking LOG Supported AT ONE END Finishing CUTLoad Second CUT Limbing and PruningCutting Spring Poles Finishing CUT Spring PoleMaintenance Assembling the BAR and ChainCutters Chain Tensioning Screw See Figures 52, 53 Adjusting the Chain TensionChain Maintenance Flats on Drive LinksSharpening the Cutters Check for Wear or Damage LEFT-HAND Cutters RIGHT-HAND TOP Plate Filing Angle Maintaining Depth Gauge ClearanceSide Plate Angle Maintaining the SAFE-T-TIP Nose Guard Restore Original Shape by Rounding FrontMaintaining the Guide BAR Lubricating HoleTighten 3/4 Turn Cleaning the AIR FilterMounting the SAFE-T-TIP Nose Guard See Figures 71, 72Checking the Fuel Filter Cleaning the Starter UnitCleaning the Engine Replacing the Sparking PlugChain Brake Cleaning the Spark Arresting SI- LencerChain Catcher Brake Band Clean the Chain Brake Storing the Chainsaw 1 Month or LongerProblem Possible Cause Solution TroubleshootingBAR and Chain Combinations Tions. See Figure But chain is not rotatingGuarantee Statement Rtsa / Rtuk / RTG WarrantySafety Directive EC Declaration of ConformityPage Ryobi Technologies GmbH

UT74121A specifications

The Homelite UT74121A is a versatile gas-powered string trimmer designed for homeowners and landscapers seeking an efficient tool for maintaining their lawns and gardens. Known for its reliability, the UT74121A combines performance with user-friendly features that make lawn care tasks less daunting.

One of the standout features of the UT74121A is its powerful 26cc 2-cycle engine. This engine provides ample power for cutting through dense grass and weeds, ensuring that tasks are completed quickly and efficiently. The lightweight design of the trimmer, coupled with its ergonomic handle, allows users to maneuver easily, making it ideal for extended use without causing fatigue.

The Homelite UT74121A is equipped with an easy-to-load bump feed spool for quick line replacement. Users can effortlessly advance the cutting line by tapping the trimmer's head on the ground, making it convenient to maintain the desired cutting length without interrupting work. The trimmer uses .095-inch diameter line, which provides durability and resilience against tough conditions.

In terms of design, the UT74121A features a straight shaft that offers increased reach and allows users to access hard-to-reach areas with ease. This design is particularly helpful for trimming along fences, in flower beds, and under low-hanging branches. The adjustable handle height further enhances user comfort, allowing for customization based on individual preferences.

Safety is a primary concern for any outdoor equipment, and the UT74121A incorporates several features to enhance user safety. It comes with a protective shield that prevents debris from being thrown during operation, and the easy-starting system reduces pull effort, making it accessible for users of all skill levels.

The trimmer also adheres to stringent emissions standards, making it an environmentally-friendly option in today's market. With proper maintenance, the UT74121A ensures longevity and sustained performance, making it a valuable addition to any landscaping toolkit.

Overall, the Homelite UT74121A is a powerful and efficient solution for those seeking a reliable string trimmer. Its combination of a robust engine, user-centric design, and safety features makes it suitable for various lawn care tasks, ensuring gardens and lawns remain well-groomed year-round.
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