Homelite UT20818A manual String Replacement, Cleaning the Exhaust Port and Muffler Spark Arrestor

Page 12

MAINTENANCE

STRING REPLACEMENT

See Figures 12, 13, 14, and 15.

1.Stop the engine, disconnect the spark plug wire. Hold the string head and unscrew the spool retainer. Turn counterclockwise.

2.Remove the spool from the string head. NOTE: Keep the spring attached to the spool. Remove any old string remaining on the spool.

3.Cut two pieces of string, each being approximately 9 ft. (2.7 m) long. Use only .080 in. (2.0 mm) diameter monofilament string.

4.Insert the first string into the anchor hole in the upper part of the spool. Wind the first string around the upper part of the spool counterclockwise, as shown by the arrows on the spool. Place string in the slot on upper spool flange, leaving about 6 in. (152 mm) extended beyond the slot. Do not overfill. After winding the string, there should be at least 1/4 in. (6 mm) between the wound string and the outside edge of the spool.

5.Repeat above step with second string, using the bottom part of spool. Do not overfill.

6.Replace the spool and the spool retainer. Refer to "Spool Replacement " earlier in this manual.

SPRING

SPOOL

ARROWS ON

SPOOL

ANCHOR

HOLE

FIRST STRING

Fig. 12

FIRST STRING

SLOT

CLEANING THE EXHAUST PORT AND MUFFLER

NOTE: Depending on the type of fuel used, the type and amount of oil used, and/or your operating condi- tions, the exhaust port and muffler may become blocked with carbon deposits. If you notice a power loss with your gas powered tool, you may need to remove these deposits to restore performance. We highly recommended that only qualified service techni- cians perform this service.

SPARK ARRESTOR

The spark arrestor must be cleaned or replaced every 25 hours or yearly to ensure proper performance of your product. Spark arrestors may be in different locations depending on the model purchased. Please contact your nearest service dealer for the location of the spark arrestor for your model.

Cleaning Instructions:

■Remove the spark arrestor from the muffler.

■If your spark arrestor is made of a fiberglass mate- rial, discard and replace.

■If your spark arrestor is made of a metal material follow these cleaning instructions:

1.Spray the spark arrestor with a quality carbon cleaner.

2.Gently clean using a wire brush.

3.Install the new or cleaned spark arrestor and reassemble completely before use.

Fig. 13

SECOND

STRING

Fig. 14

SLOT

ARROWS ON

 

SPOOL

Fig. 15

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Contents Operators Manual Table of Contents Important Safety InstructionsIntroduction Specific Safety Rules for Trimmer USE Symbols Symbol Name ExplanationSpecifications FeaturesUnpacking InstructionsAssembly Attaching the Power Head to the Trimmer AttachmentRemoving the Attachment from the Power Head Attaching the Storage HangerHandle Grass DeflectorFueling and Refueling the Trimmer Operating the TrimmerFuel Mixture Fuel Mixture Premium Exact MIX Gasoline OILOperation Advancing the StringCUT OFF Blade Cutting TipsStarting and Stopping SeeTo Start a Cold Engine To Start a Warm EngineMaintenance Spool Replacement EZ Line TAP Advance SystemNEW Prewound Spool See Figures 10String Replacement Cleaning the Exhaust Port and Muffler Spark ArrestorSee Figures 12, 13, 14, Arrows on Spool Anchor Hole First StringReplacing and Cleaning AIR Filter Fuel CAPSpark Plug Storing the Trimmer 1 Month or LongerTroubleshooting Speed. See FigureIdle Speed Screw Mixture Needle Warranty Limited Warranty StatementManufacturers Warranty Coverage AIR Filter Assy Service Parts DescriptionOptional Muffler Guard Service Repair Parts California Proposition

UT20818A specifications

The Homelite UT20818A is an innovative electric chainsaw designed for homeowners and DIY enthusiasts who seek a reliable and efficient cutting tool for various outdoor tasks. This model stands out in the market due to its powerful performance, user-friendly features, and lightweight design, making it ideal for both novice and experienced users alike.

One of the main features of the UT20818A is its robust 18-inch cutting bar, which provides a perfect balance between reach and precision. This length allows users to tackle tree limbs and branches with ease, whether for trimming, pruning, or firewood preparation. The chainsaw is powered by a 12-amp electric motor, which delivers consistent power for cutting through hard wood without the hassle of gas and oil mixing. The electric motor ensures a quieter operation compared to gas-powered models, making it suitable for residential areas.

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Adding to its convenience, the Homelite UT20818A comes with a safety switch that prevents accidental starts, ensuring maximum protection for the user. The integrated safety brake also stops the chain quickly if necessary, further enhancing the overall safety profile of the tool.

In summary, the Homelite UT20818A is an excellent choice for anyone in need of an effective chainsaw that combines power, safety, and ease of use. With its features like a powerful electric motor, automatic chain oiler, tool-less tensioning, and user-friendly design, it represents an optimal solution for a variety of cutting tasks around the home and garden. Whether dealing with routine maintenance or more extensive landscaping projects, the UT20818A is designed to deliver reliable performance and satisfying results every time.
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