Homelite CSP4518 - UT74125A, CSP4520 - UT74127A, CSP3816 - UT74123A manual Sharpening the Cutters

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MAINTENANCE

Raker depth gauge) clearance. See Figure 55.

1.Too low increases the potential for kick-back.

2.Not low enough decreases cutting ability.

If the cutter teeth hit hard objects such as nails and stones, or are abraded by mud or sand on the wood, let the Homelite service dealer 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 indicated, have the drive sprocket replaced by a Homelite service dealer. See Figure 56.

RAKER

CLEARANCE

Fig. 55

INSPECT DRIVE

SPROCKET

Fig. 56

SHARPENING THE CUTTERS

Be careful to file all cutters to the specified angles and to the same length, as fast cutting can only be obtained when all cutters are uniform.

1.Wear gloves for protection.

2.Tension the chain before sharpening.

NOTE: Refer to “Maintenance – Adjusting the Chain Tension” earlier in this manual.

3.Use a 5/32 in. diameter round file and holder. Do all filing at the midpoint of the bar.

4.Keep the file level with the top plate of the tooth. Do not let the file dip or rock. See Figure 58.

5.Using light but firm pressure. Stroke towards the front corner of the tooth.

6.Lift the file away from the steel on each return stroke.

7.Put a few firm strokes on every tooth. File all left-hand cutters in one direction. Then move to the other side and file the right-hand cutters in the opposite direction.

8.Remove filings from the file with a wire brush.

 

CUTTING

 

CORNER

TOP PLATE

SIDE PLATE

RIVET HOLE

DEPTH GAUGE

HEELTOE

GULLET

Fig. 57

RAKER

(DEPTH GAUGE)

CLEARANCE

Fig. 58

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Contents OPERATOR’S Manual Save this Manual for Future ReferenceTable of Contents IntroductionGeneral Safety Rules Read ALL InstructionsKeep ALL Parts of Your Body away from the saw Safety Apparel Specific Safety RulesGeneral Precautions Basic Precautions in the CUTTING/ Work AreaKICK-BACK Maintenance PrecautionsPush and Pull Pull PushSymbols Symbol Name ExplanationSymbols Specifications Features SAFE-T-TIPANTI-KICK-BACK Nose Guard Understanding Your Chainsaw Safety DevicesOperation LOW KICK-BACK SAW ChainRUN Position Brake KICK-BACK PrecautionsChain Brake KICK-BACK Danger Zone RotationalMixing the Fuel Fuel and RefuellingHandling the Fuel Safely Filling the TankBrake Position Ignition Switch RUN Primer Bulb Adding OILStarting the Engine Starting a Cold Engine Ignition Switch Stop Position Stopping the EngineStarting a Warm Engine Proper Cutting Stance Preparing for CuttingProper Grip on Handles Chain LineAdjusting the Carburettor Basic OPERATING/CUTTING ProceduresWork Area Precautions AIR FilterAdjusting Idling Speed Operating the Chain BrakeBrake Position RUN Position Felling Trees Hazardous Conditions Keep Bystanders AwayRetreat Path Proper Procedure for Tree Felling Planned Line of FallRetreat Hinge Back CUT HingeNotch Approx /3 Diameter Trunk WedgeBucking with a Wedge Removing Buttress RootsBucking Vertical CUT Loose Section Horizontal KICK-BACK WedgeUNDER-BUCKING Bucking Logs Under StressOVER-BUCKING LOG Supported AT ONE END Finishing CUTLoad Second CUT Limbing and PruningCutting Spring Poles Finishing CUT Spring PoleMaintenance Assembling the BAR and ChainCutters Chain Tensioning Screw Adjusting the Chain Tension Chain MaintenanceFlats on Drive Links Sharpening the Cutters Check for Wear or Damage LEFT-HAND Cutters RIGHT-HAND Maintaining Depth Gauge Clearance TOP Plate Filing AngleSide Plate Angle Maintaining the SAFE-T-TIPNOSE Guard Restore Original Shape by Rounding FrontMaintaining the Guide BAR Lubricating HoleMounting the SAFE-T-TIP Nose Guard Cleaning the AIR FilterStarter Assembly Tighten 3/4 A TurnChecking the Fuel Filter Cleaning the Starter UnitCleaning the Engine Replacing the Sparking PlugChain Brake Cleaning the Spark Arresting SilencerChain Catcher Brake Band Clean the Chain Brake Storing the Chainsaw 1 Month or LongerTroubleshooting Problem Possible Cause SolutionBAR and Chain Combinations Tions. See Figure Guarantee Statement Rtsa / Rtuk / RTG WarrantySafety Directive EC Declaration of ConformityRyobi Technologies GmbH

CSP3816 - UT74123A, CSP4520 - UT74127A, CSP4518 - UT74125A specifications

Homelite has long been known for producing reliable and efficient outdoor power equipment, and its lineup of chainsaws, including the CSP4518, CSP4520, and CSP3816 models, continues to uphold that reputation. These chainsaws are designed to cater to a wide range of cutting needs, making them popular choices for both homeowners and professionals.

The Homelite CSP4518 - UT74125A boasts a powerful 45cc engine that delivers commendable cutting performance. With an 18-inch bar, this chainsaw is suited for tackling medium to large-sized trees and heavy-duty tasks. What sets it apart is its lightweight design combined with an ergonomic handle, allowing for better control and reduced user fatigue during prolonged use. The CSP4518 also features an automatic oiling system, which ensures that the chain remains well-lubricated during operation, increasing efficiency and extending the life of the chain.

Next in line is the Homelite CSP4520 - UT74127A, which takes cutting capabilities a notch higher with a robust 52cc engine. This chainsaw includes a longer 20-inch bar, making it ideal for felling larger trees and cutting thick logs. With advanced features such as anti-vibration technology, users can experience reduced vibrations, enhancing comfort during operation. The CSP4520 also adopts a tool-less chain tensioning system, allowing quick adjustments to the chain without the need for additional tools, making maintenance hassle-free.

The Homelite CSP3816 - UT74123A is a more compact option, powered by a 38cc engine and featuring a 16-inch bar. This model is perfect for homeowners looking for a lightweight chainsaw that doesn’t compromise on power. The CSP3816 is equipped with a quick-start mechanism, making it easy to start even in cold weather. Moreover, the chainsaw's compact design makes it easy to maneuver in tight spaces, making it an excellent choice for pruning and small-scale cutting tasks.

All three models are built with durability in mind, utilizing high-quality materials and advanced engineering technologies. They come with safety features such as chain brakes and hand guards that provide an extra layer of protection to users. Each Homelite chainsaw also incorporates environmentally-friendly designs that reduce emissions without sacrificing performance.

In summary, the Homelite CSP4518, CSP4520, and CSP3816 models cater to a diverse range of cutting needs with their innovative features and technologies. Whether for professional use or home maintenance, these chainsaws represent reliability, efficiency, and user-friendly design, making them excellent choices for outdoor cutting tasks.
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