OPERATION

3.Cut a notch about one-third the diameter of the trunk in the side of the tree. Make the notch cuts so they intersect at right angles to the line of fall. This notch should be cleaned out to leave a straight line. To keep the weight of the wood off the saw, always make the lower cut of the notch before the upper cut. See Figure 31.

4.Make the back-cut level and horizontal, and at a minimum of 5 cm (2 in.) above the horizontal cut of the notch.

See Figure 31.

NOTE: Never cut through to the notch. Always leave a band of wood between the notch and back cut (approximately 5 cm (2 in.) or one-tenth the diameter of the tree). This is called “hinge” or “hinge wood”. It controls the fall of the tree and prevents slipping or twisting or shoot-back of the tree off the stump. See Figure 32.

On large diameter trees, stop the back cut before it is deep enough for the tree to either fall or settle back on the stump. Then insert soft wooden or plastic wedges into the cut so they do not touch the chain. Drive wedges in, little by little, to help jack the tree over.

See Figure 33.

When bucking or felling with a wedge, it may be necessary 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 immediately.

5.As tree starts to fall, stop the chainsaw and put it down immediately. Retreat along the cleared path, but watch the action in case something falls your way.

HINGE

5 cm (2 in.) OR 1/10 DIA

NOTCH -

APPROX. 1/3

DIAMETER OF

TRUNK

BACK CUT

 

5 cm (2 in.)

Fig. 31

 

HINGE

BACK CUT

Fig. 32

WARNING:

Never cut through to the notch when making a back cut. The hinge controls the fall of the tree: this is the section of wood between the notch and back cut.

WEDGE

Fig. 33

UK - Page 21

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Homelite UT74121A manual Notch Approx /3 Diameter Trunk Back CUT, Hinge Back CUT, Wedge
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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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