Homelite UT74121A manual Stopping the Engine, Starting a Warm Engine

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OPERATION

8.Pull STARTER until engine attempts to start.

Slowly pull the starter grip out for a short distance until you feel the starter engage, then briskly pull straight up. Do not pull to the end of the rope; this may damage the starter. Hold onto the grip during rewinding.

Pull the starter rope until the first firing of the engine is heard (no more than five pulls).

NOTE: A new unit may require additional pulls.

9.Push choke lever to half choke position.

10.Pull starter until engine runs.

NOTE: Allow the saw to run in this position 15-30 seconds, depending on the temperature.

11.Push choke lever all the way IN.

12.Immediately SQUEEZE and release the throttle trigger.

Immediately depress the throttle trigger, which releases the trigger lock button. Squeeze and release the throttle trigger to let the engine idle.

13.Move chain brake to RUN position.

Place chain brake lever/hand guard into the RUN position. Refer to “Operation – Operating the Chain Brake” later in this manual for additional information.

CAUTION:

Failure to release partial throttle when chain brake lever is in the brake position will result in serious damage to the unit. Never squeeze and hold the throttle trigger while the chain brake is in the brake position.

Now you are ready to pick up the saw. Use the proper grip for both handles. Refer to “Operation - Proper Grip on Handles” later in this manual for additional information.

STARTING A WARM ENGINE:

Follow the instructions for starting a cold engine (steps

1-9), but do not attempt to start in the full choke position (skip step 5). Push and release primer bulb 7 times. Pull the choke out and push back it in to the original run position.

STOPPING THE ENGINE

Release the throttle trigger and let the engine return to idle. To stop the engine, move the ignition switch to the “O” stop position. Do not put the chainsaw on the ground when the chain is still moving. For additional safety,

set the chain brake when the saw is not in use.

In the event that the ignition switch will not stop the saw, pull the choke lever out to the fully extended position (Full Choke / ) and engage chain brake to stop the engine. If the ignition switch will not stop the saw when set to the “O” stop position, have the ignition switch repaired before using the chainsaw again to prevent unsafe conditions or serious injury.

Important: When you have finished using the saw, relieve tank pressures by loosening the CHAIN OIL and FUEL MIX caps. Then retighten the caps. Allow the engine to cool before storing.

IGNITION SWITCH

IN THE STOP

POSITION

Fig. 19

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Contents Save this Manual for Future Reference OPERATOR’S ManualIntroduction Table of ContentsRead ALL Instructions General Safety RulesDo not Operate a Chainsaw That is Damaged Basic Precautions in the CUTTING/ Work Area Specific Safety RulesGeneral Precautions Safety ApparelPull Push Maintenance PrecautionsPush and Pull KICK-BACKStop SymbolsSymbol Name Explanation RUNSpecifications Features Guide Bars Understanding Your Chainsaw Safety DevicesOperation LOW KICK-BACK SAW ChainKICK-BACK Brake Position Rotational KICK-BACK PrecautionsChain Brake RUN PositionFilling the Tank Fuel and RefuellingHandling the Fuel Safely Mixing the FuelSee Figures 10 to Brake Position Ignition Switch RUN Primer BulbChain OIL System Starting the EngineStarting a Cold Engine Starting a Warm Engine Stopping the EngineProper Grip Preparing for CuttingProper Grip on Handles Chain LineSee Figures 24 Basic OPERATING/CUTTING ProceduresWork Area Precautions Adjusting the CarburettorAdjusting Idling Speed Operating the Chain BrakeBrake Position RUN Position Retreat Path Felling Trees Hazardous ConditionsProper Procedure for Tree Felling Planned Line of FallRetreat Wedge HingeNotch Approx /3 Diameter Trunk Back CUT Hinge Back CUTVertical CUT Loose Section Horizontal KICK-BACK Wedge Removing Buttress RootsBucking Bucking with a WedgeLOG Supported AT ONE END Finishing CUT Bucking Logs Under StressOverbucking UnderbuckingFinishing CUT Spring Pole Limbing and PruningCutting Spring Poles Load Second CUTAssembling the BAR and Chain MaintenanceCutters Chain Tensioning Screw Flats on Drive Links Adjusting the Chain TensionChain Maintenance See Figures 52, 53Sharpening the Cutters Check for Wear or Damage LEFT-HAND Cutters RIGHT-HAND Maintaining Depth Gauge Clearance TOP Plate Filing AngleSide Plate Angle Lubricating Hole Restore Original Shape by Rounding FrontMaintaining the Guide BAR Maintaining the SAFE-T-TIP Nose GuardSee Figures 71, 72 Cleaning the AIR FilterMounting the SAFE-T-TIP Nose Guard Tighten 3/4 TurnReplacing the Sparking Plug Cleaning the Starter UnitCleaning the Engine Checking the Fuel FilterStoring the Chainsaw 1 Month or Longer Cleaning the Spark Arresting SI- LencerChain Catcher Brake Band Clean the Chain Brake Chain BrakeTroubleshooting Problem Possible Cause SolutionBAR and Chain Combinations But chain is not rotating Tions. See FigureEC Declaration of Conformity WarrantySafety Directive Guarantee Statement Rtsa / Rtuk / RTGPage Ryobi Technologies GmbH

UT74121A specifications

The Homelite UT74121A is a versatile gas-powered string trimmer designed for homeowners and landscapers seeking an efficient tool for maintaining their lawns and gardens. Known for its reliability, the UT74121A combines performance with user-friendly features that make lawn care tasks less daunting.

One of the standout features of the UT74121A is its powerful 26cc 2-cycle engine. This engine provides ample power for cutting through dense grass and weeds, ensuring that tasks are completed quickly and efficiently. The lightweight design of the trimmer, coupled with its ergonomic handle, allows users to maneuver easily, making it ideal for extended use without causing fatigue.

The Homelite UT74121A is equipped with an easy-to-load bump feed spool for quick line replacement. Users can effortlessly advance the cutting line by tapping the trimmer's head on the ground, making it convenient to maintain the desired cutting length without interrupting work. The trimmer uses .095-inch diameter line, which provides durability and resilience against tough conditions.

In terms of design, the UT74121A features a straight shaft that offers increased reach and allows users to access hard-to-reach areas with ease. This design is particularly helpful for trimming along fences, in flower beds, and under low-hanging branches. The adjustable handle height further enhances user comfort, allowing for customization based on individual preferences.

Safety is a primary concern for any outdoor equipment, and the UT74121A incorporates several features to enhance user safety. It comes with a protective shield that prevents debris from being thrown during operation, and the easy-starting system reduces pull effort, making it accessible for users of all skill levels.

The trimmer also adheres to stringent emissions standards, making it an environmentally-friendly option in today's market. With proper maintenance, the UT74121A ensures longevity and sustained performance, making it a valuable addition to any landscaping toolkit.

Overall, the Homelite UT74121A is a powerful and efficient solution for those seeking a reliable string trimmer. Its combination of a robust engine, user-centric design, and safety features makes it suitable for various lawn care tasks, ensuring gardens and lawns remain well-groomed year-round.
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