MAINTENANCE

nStop the motor and disconnect from power supply before setting the chain tension.

nSlightly loosen the chain cover lock knob.

nTurn the chain tensioning knob clockwise to tension the chain.

NOTE:  A cold chain is correctly tensioned when there is no slack on the underside of the guide bar, the chain is snug, and it can be turned by hand without binding.

nRotate the chain cover lock knob clockwise to secure.

Retension the chain whenever the flats on the drive links hang out of the bar groove.

NOTE:  During normal saw operation, the tem- perature of the chain increases. The drive links of a correctly tensioned warm chain will hang approximately .050 in. out of the bar groove.

NOTE:  New chains tend to stretch; check the chain tension frequently and tension as required.

CAUTION:

A chain tensioned while warm may be too tight upon cooling. Check the “cold tension” before next use.

CHAIN MAINTENANCE

See Figures 36 - 37.

WARNING:

Before performing any maintenance, make sure the tool is unplugged from the power supply. Failure to comply could result in accidental starting and possible serious personal injury.

Use only a low-kickback chain on this saw. This fast-­cutting chain provides kickback reduction when properly maintained.

For smooth and fast cutting, maintain the chain properly.

The chain requires sharpening when the wood chips are small and powdery, the chain must be forced through the wood during cutting, or the chain cuts to one side. During maintenance of the chain, consider the following:

RAKER (DEPTH GAUGE) CLEARANCE

.025 in.

Fig. 36

INSPECT DRIVE SPROCKET

Fig. 37

■n Improper filing angle of the side plate can increase the risk of severe kickback.

nRaker (depth gauge) clearance.

•  Too low increases the potential for kick- back.

•  Not low enough decreases cutting ability.

nIf the cutter teeth hit hard objects such as nails and stones, or are abraded by mud or sand on the wood, have an authorized service center sharpen the chain.

NOTE:  Inspect the drive sprocket for wear or damage when replacing the chain. If signs of wear or damage are present in the areas indi- cated, have the drive sprocket replaced by an authorized service center.

NOTE:  If you do not fully understand the correct procedure for sharpening the chain after reading the instructions that follow, have the saw chain sharp- ened by an authorized service center or replace with a recommended low-kickback chain.

Page 24 — English

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Homelite UT43122, UT43102 Chain Maintenance, See Figures 36, Raker Depth Gauge Clearance, Inspect Drive Sprocket
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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.

Furthermore, the Homelite UT43122 and UT43102 boast a lightweight design, making them easy to maneuver around landscapes. The ergonomic handle features a comfortable grip, reducing fatigue during prolonged operation. These characteristics make them suitable for both professional landscapers tackling large areas and homeowners maintaining their yards.

In terms of durability, the construction of the Homelite trimmers is robust, ensuring they can withstand the rigors of outdoor use. The inclusion of a guard also protects the user from debris, promoting safety during operation.

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.
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