Homelite UT10510 Adjusting the Carburetor, Basic OPERATING/CUTTING Procedures, See Figures 20

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OPERATION

BASIC OPERATING/CUTTING PROCEDURES

Practice cutting a few small logs using the following technique to get the “feel” of using your saw before you begin a major sawing operation.

1.Take the proper stance in front of the wood with the saw idling.

2.Accelerate the engine to full throttle just before entering the cut by squeezing the throttle trigger.

3.Begin cutting with the saw against the log.

4.Keep the engine at full throttle the entire time you are cutting.

5.Allow the chain to cut for you; exert only light downward pressure. Forcing the cut could result in damage to the bar, chain, or engine.

6.Release the throttle trigger as soon as the cut is com- pleted allowing the engine to idle. Running the saw at full throttle without a cutting load can result in unneces- sary wear to the chain, bar, and engine.

7.Do not put pressure on the saw at the end of the cut.

WORK AREA PRECAUTIONS

See Figure 19.

■Cut only wood or materials made from wood; no sheet metal, no plastics, no masonry, no non-wood building materials.

■Never allow children to operate your saw. Allow no person to use this chain saw who has not read this operator's manual or received adequate instructions for the safe and proper use of this chain saw.

■Keep everyone – helpers, bystanders, children, and animals, a SAFE DISTANCE from the cutting area. During felling operations, the safe distance should be a least twice the height of the largest trees in the felling area. During bucking operations, keep a minimum distance of 15 feet (4.5m) between workers.

Fig. 19

■Always cut with both feet on solid ground to prevent being pulled off balance.

■Do not cut above chest height as a saw held higher is difficult to control against kickback forces.

■Do not fell trees near electrical wires or buildings. Leave this operation for professionals.

■Cut only when visibility and light are adequate for you to see clearly.

ADJUSTING THE CARBURETOR

See Figures 20 and 21.

Before adjusting the carburetor, clean the air filter and the starter cover vents. Allow the engine to warm up prior to carburetor adjustment. Refer to “Maintenance” later in this manual.

AIR FILTER

Fig. 20

STARTER COVER

Fig. 21

VENTS

The carburetor is factory set and should not require adjusting. The carburetor will permit only limited adjust- ment of the “L” (Low Jet) and “H” (High Jet) needles. Any adjustment should be done by a Homelite Service Center.

Under no circumstances should the “L” (Low Jet) and “H” (High Jet) needles be forced outside the range of adjust- ment.

CAUTION:

Serious damage can occur to the engine if improper adjustments are made to the “L” and “H” needles.

Do not force the “L” and “H” needles outside the adjustment range!

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Contents Save this Manual for Future Reference Operators ManualIntroduction Table of ContentsRead ALL Instructions General Safety RulesBasic Precautions in the CUTTING/ Work Area Specific Safety RulesGeneral Precautions Safety ApparelSee Figure Maintenance PrecautionsKickback Push and PullSymbol Name Explanation SymbolsSpecifications Features LOW Kickback SAW Chain Understanding Your Chain SAW Safety DevicesOperation SAFE-T-TIP ANTI-KICKBACK Nose GuardMixing the Fuel Kickback PrecautionsFuel and Refueling Handling the Fuel SafelyAdding OIL Starting the EngineSee Figures 8 through Starting the Engine Stopping the Engine See Figures 16 Preparing for CuttingProper Grip on Handles Proper Cutting StanceSee Figures 20 Adjusting the CarburetorBasic OPERATING/CUTTING Procedures Work Area PrecautionsAdjusting Idle Speed Felling TreesHazardous Conditions See Figures 23 through Proper Procedure for Tree FellingHinge Removing Buttress Roots BuckingBucking with a Wedge Bucking Logs Under Stress OverbuckingUnderbucking Cutting Springpoles Limbing and PruningMaintenance Assembling the BAR and ChainSee Figures 36 through Chain Tensioning PIN Hole Chain Tensioning Screw See Figures 48 Adjusting the Chain TensionChain Maintenance See Figures 45, 46,See Figures 50 through Sharpening the CuttersLeft Hand Cutters Right Hand See Figures 57, 58, TOP Plate Filing AngleSide Plate Angle Maintaining Depth Gauge ClearanceMaintaining the Guide BAR Maintaining the SAFE-T-TIP Nose GuardSee Figures 61 Cleaning the AIR Filter Mounting the SAFE-T-TIP Nose GuardSee Figures 63, 64, Replacing the Spark Plug Cleaning the Starter UnitCleaning the Engine Checking the Fuel FilterCleaning the Spark Arresting Muffler Chain CatcherStoring the Chain SAW 1 Month or Longer BAR and Chain Combinations TroubleshootingTroubleshooting Limited Warranty Statement WarrantyHomelite Consumer PRODUCTS, INC

UT10510 specifications

The Homelite UT10510 chainsaw is a versatile and efficient tool designed for both novice and experienced users who require a dependable saw for various tasks, from trimming and pruning to heavier cutting jobs. Known for its power and ease of use, the UT10510 is a reliable addition to any toolbox.

One of the main features of the Homelite UT10510 is its 10-inch cutting bar, which provides a perfect balance between maneuverability and cutting capacity. This size makes it ideal for tackling small to medium-sized branches, allowing users to handle tasks quickly and efficiently. It is also lightweight, reducing user fatigue during extended use, a benefit that is particularly important for those who may need to work for prolonged periods.

The UT10510 is powered by a gas engine, providing a robust 25cc of power. This engine allows for strong performance, enabling the saw to cut through tougher materials with relative ease. Additionally, the gas-powered design offers the advantage of being more portable than electric models, as it does not require a power source or long extension cords.

Another noteworthy technology incorporated into the Homelite UT10510 is its automatic chain lubrication system. This feature ensures that the chain remains well-lubricated during operation, which not only prolongs the life of the chain but also enhances cutting efficiency. A well-lubricated chain reduces friction, allowing for smoother cuts and reducing the risk of overheating.

Additionally, the UT10510 includes a tool-free chain tensioning system, which makes it easy for users to quickly adjust the chain tension without the need for additional tools. This feature is particularly useful for those who may not have extensive experience with chainsaw maintenance, as it simplifies what can be an otherwise complicated process.

Safety is also a significant consideration in the design of the Homelite UT10510. It features a chain brake that stops the chain immediately in case of kickback. This safety feature is critical for reducing the risk of accidents while operating the saw.

In summary, the Homelite UT10510 is a compact, powerful chainsaw designed for versatility and ease of use. With its effective 10-inch cutting bar, reliable gas engine, automatic chain lubrication, tool-free chain tensioning, and built-in safety features, it stands out as a practical choice for both casual users and those looking to handle more demanding cutting tasks. Whether you need to trim branches in your yard or cut firewood, the UT10510 is designed to meet your needs efficiently.
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