Homelite CSP3816 - UT74123A Adjusting the Chain Tension, Chain Maintenance, Flats on Drive Links

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MAINTENANCE

ADJUSTING THE CHAIN TENSION

WARNING:

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

1.Stop the engine before setting the chain tension.

2.Make sure the guide bar nuts are loosened to finger tight and turn the chain tensioner 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 can be turned by hand without binding.

3.Re-tension the chain whenever the flats on the drive links hang out of the bar groove.

NOTE: During normal saw operation, the temperature of the chain increases. The drive links of a correctly tensioned warm chain will hang approximately1.25 mm (1/8 in) out of the bar groove. To help determine the correct warm chain tension, the tip of the combination wrench can be used as a guide. See Figures 52, 53 and 54.

NOTE: New chain tends to stretch: check the chain tension frequently and tension as required.

CAUTION:

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

FLATS ON DRIVE LINKS

Fig. 52

APPROXIMATELY 1.25 mm

Fig. 53

 

APPROXIMATELY 1.25 mm

 

Fig. 54

CHAIN MAINTENANCE

 

CAUTION:

Check that the switch is in the STOP “ / O ” position before working on the saw.

Use only a low-kick-back chain on this saw. This fast-cutting chain provides kick-back reduction when properly main- tained.

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:

Improper filing angle of the side plate increases the risk of a severe kick-back.

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Contents Save this Manual for Future Reference OPERATOR’S ManualIntroduction Table of ContentsRead ALL Instructions General Safety RulesKeep ALL Parts of Your Body away from the saw General Precautions Specific Safety RulesSafety Apparel Basic Precautions in the CUTTING/ Work AreaPush and Pull Maintenance PrecautionsKICK-BACK Pull PushSymbol Name Explanation SymbolsSymbols Specifications Features Operation Understanding Your Chainsaw Safety DevicesSAFE-T-TIPANTI-KICK-BACK Nose Guard LOW KICK-BACK SAW ChainChain Brake KICK-BACK PrecautionsRUN Position Brake KICK-BACK Danger Zone RotationalHandling the Fuel Safely Fuel and RefuellingMixing the Fuel Filling the TankStarting the Engine Brake Position Ignition Switch RUN Primer BulbAdding OIL Starting a Cold Engine Starting a Warm Engine Ignition Switch Stop PositionStopping the Engine Proper Grip on Handles Preparing for CuttingProper Cutting Stance Chain LineWork Area Precautions Basic OPERATING/CUTTING ProceduresAdjusting the Carburettor AIR FilterBrake Position RUN Position Adjusting Idling SpeedOperating the Chain Brake Retreat Path Felling Trees Hazardous ConditionsKeep Bystanders Away Retreat Proper Procedure for Tree FellingPlanned Line of Fall Notch Approx /3 Diameter Trunk HingeHinge Back CUT WedgeBucking Removing Buttress RootsBucking with a Wedge Vertical CUT Loose Section Horizontal KICK-BACK WedgeOVER-BUCKING Bucking Logs Under StressUNDER-BUCKING LOG Supported AT ONE END Finishing CUTCutting Spring Poles Limbing and PruningLoad Second CUT Finishing CUT Spring PoleAssembling the BAR and Chain MaintenanceCutters Chain Tensioning Screw Flats on Drive Links Adjusting the Chain TensionChain Maintenance Sharpening the Cutters Check for Wear or Damage LEFT-HAND Cutters RIGHT-HAND Side Plate Angle Maintaining Depth Gauge ClearanceTOP Plate Filing Angle Maintaining the Guide BAR Restore Original Shape by Rounding FrontMaintaining the SAFE-T-TIPNOSE Guard Lubricating HoleStarter Assembly Cleaning the AIR FilterMounting the SAFE-T-TIP Nose Guard Tighten 3/4 A TurnCleaning the Engine Cleaning the Starter UnitChecking the Fuel Filter Replacing the Sparking PlugChain Catcher Brake Band Clean the Chain Brake Cleaning the Spark Arresting SilencerChain Brake Storing the Chainsaw 1 Month or LongerBAR and Chain Combinations TroubleshootingProblem Possible Cause Solution Tions. See Figure Safety Directive WarrantyGuarantee Statement Rtsa / Rtuk / RTG 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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