MAINTENANCE

nRemove the bar and chain from the mounting surface.

nRemove the old chain from the bar.

n Lay out the new saw chain in a loop and straighten any kinks. The cutters should face in the direction of chain rotation. If they face backwards, turn the loop over.

n Place the chain drive links into the bar groove as

Fig. 32

shown.

 

NOTE: Make certain of direction of chain.

n Position the chain so there is a loop at the back of the bar.

n Hold the chain in position on the bar and place the loop around the sprocket.

n Fit the bar flush against the mounting surface so

Fig. 33

that the bar studs are in the long slot of the bar.

FLATS ON DRIVE LINKS

 

WARNING:

When placing the bar on the bar studs, ensure that the chain tensioning pin is in the chain ten- sion pin hole. Failure to properly place the chain tensioning pin in the chain tensioning pin hole could cause the chain to come loose, resulting in serious personal injury.

nReplace the chain cover.

nReplace the chain cover lock knob; rotate knob clockwise to tighten. The bar should still be free to move for tension adjustment.

nRemove all slack from the chain by turning the chain tensioning knob clockwise until the chain seats snugly against the bar with the drive links in the bar groove.

nLift the tip of the guide bar up to check for sag.

nRelease the tip of the guide bar and turn the chain tensioning knob 1/2 turn clockwise. Repeat this process until sag does not exist.

nHold the tip of the guide bar up and tighten the chain cover lock knob.

The chain is correctly tensioned when there is no sag on the underside of the guide bar, the chain is snug, but it can be turned by hand without binding.

NOTE:  If chain is too tight, it will not rotate. Loosen the chain cover lock knob slightly and turn the

Fig. 34

.050 in.

Fig. 35

 

chain tensioning knob 1/4 turn counterclockwise. Lift the tip of the guide bar up and retighten the chain cover lock knob. Ensure that the chain will rotate without binding.

ADJUSTING THE CHAIN TENSION

See Figures 34 - 35.

WARNING:

Never touch or adjust the chain while the motor is running. The saw chain is very sharp. Always wear protective gloves when performing main- tenance on the chain.

Page 23 — English

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Image 23
Homelite UT43102, UT43122 manuel dutilisation Adjusting the Chain Tension, Flats on Drive Links, See Figures 34

UT43102, UT43122 specifications

The Homelite UT43122 and UT43102 are two powerful and efficient string trimmers designed to meet the needs of both homeowners and landscaping professionals. Known for their reliability and performance, these trimmers come equipped with features that enhance user experience and job effectiveness.

At the heart of both models is a robust, high-performance electric motor that provides ample power for cutting through thick grass and weeds. The UT43122 features a 12 Amp motor, while the UT43102 has an equally impressive 10 Amp motor. These electric motors facilitate quick start-ups with minimal noise, offering a more environmentally friendly alternative to gas-powered trimmers. This makes them ideal for use in residential areas where noise restrictions may be in place.

One of the standout features of the Homelite UT43122 and UT43102 is their innovative Auto Feed String System. This technology ensures that the line is automatically advanced as needed, allowing for continuous cutting without the hassle of manual adjustments. As a result, users can focus on trimming rather than stopping to reload the line, which significantly increases productivity.

Both models are equipped with a 15-inch cutting path, enabling them to cover more ground in less time. This cutting width is augmented by a dual-line nylon string that offers superior cutting power. Additionally, the adjustable telescoping shaft allows users to customize the length of the trimmer to their preferred height, enhancing comfort during extended use.

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In summary, the Homelite UT43122 and UT43102 string trimmers are equipped with powerful motors, an automatic feed system, and user-friendly features. Their lightweight design, adjustable shafts, and durable construction make them suitable for various trimming tasks, making them a valuable addition to any lawn care toolkit. Whether for professional use or home gardening, these trimmers deliver efficiency and effectiveness in tackling tough yard work.