Husqvarna WH5218 / 966638603, WH4818 / 966638602, WH3616 / 966638601 manual General Maintenance

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SAFETY

General Maintenance

Never operate machine in a closed area.

Keep all nuts and bolts tight to be sure the equipment is in safe working condition.

Never tamper with safety devices. Check their proper operation regularly.

Keep machine free of grass, leaves, or other debris buildup. Clean oil or fuel spillage and remove any fuel-soaked debris. Allow machine to cool before storing.

If you strike a foreign object, stop and inspect the machine. Repair, if necessary, before restarting.

Never make any adjustments or repairs with the engine running.

Check grass catcher components and the discharge guard frequently and replace with manufacturer’s recommended parts, when necessary.

Mower blades are sharp. Wrap the blade or wear gloves, and use extra caution when servicing them.

Check brake operation frequently. Adjust and service as required.

Maintain or replace safety and instruction labels, as necessary.

Do not modify safety equipment. Check regularly to be sure it works properly. The machine must not be used with defective or unmounted protective plates, protective cowlings, safety switches, or other protective devices.

Do not change the settings of governors and avoid running the engine with overly high engine speeds. If you run the engine too fast, you risk damaging the machine components.

Use protective goggles.

Ensure that the fuel filler cap is mounted tightly and no flammable substances are stored in an open vessel.

Never use the machine indoors or in spaces lacking proper ventilation. The exhaust fumes contain carbon monoxide, an odorless, poisonous, and lethal gas.

Stop and inspect the equipment if you run over or into anything. If necessary, make repairs before starting.

The machine is tested and approved only with the equipment originally provided or recommended by the manufacturer. Only use approved repair parts for the machine.

8011-638

Never operate the machine in an enclosed space

WARNING!

Use protective glasses for maintenance work.

WARNING!

The engine must not be started when the protective plate for the mower deck’s drive belt is removed.

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Contents Operator Manual All rights reserved Contents Page Introduction CongratulationsGeneral Driving and Transport on Public RoadsGood Service Manufacturing NumberSymbols and decals Safety General OperationPersonal Safety Equipment Slope OperationChildren Safe Handling of Gasoline General Maintenance Transport Controls Control LocationsIgnition Switch Recoil Starter GripDrive Levers Operator Presence Switches Ground Speed ControlChoke Control Tracking Adjustment Throttle ControlNeutral Lock Service Meter Parking BrakeBlade Engagement Control OptionalFuel Shutoff Valve Fuel TankOperation Before StartingStarting the Engine Speed control in the start position Running ReverseTracking Operating on HillsMowing Tips Stopping Emergency StopNormal operating stop Stopping the EngineShut OFF the fuel valve Cutting Height Adjustment Cutting Height TableIt may be necessary to readjust drive and brake linkages Cutting Height TableMaintenance Maintenance ScheduleDaily Maintenance interval Least Hours Once Each Before AfterMaintenance Safety System Function CheckTire Pressures Deck BeltReplacing belt Blade replacement Cutting BladesCleaning HardwareUnder side of rear deck WashingGeneral Lubrication Front Wheel MountFront Wheel Bearings Troubleshooting Problem CauseTroubleshooting Service Winter StorageLower Harness Harness Adapter Upper Harness Technical Data WH5218 Engine HEX Head CAP Screws CONForMITY Certificates USA requirementsService Journal Delivery ServiceHour Service After the first 8 hoursPerform the 25-hour service At Least Once Each Year Service Journal Page 115 392127R1 09/14/10

WH3616 / 966638601, WH4818 / 966638602, WH5218 / 966638603 specifications

Husqvarna has established itself as a leader in outdoor power equipment, and their range of brushcutters is no exception. Among their most notable models are the WH5218, WH4818, and WH3616, each boasting impressive features, advanced technologies, and robust characteristics suited for various applications.

The Husqvarna WH5218 (966638603) stands out with its powerful 2-stroke engine, providing exceptional performance and fuel efficiency. This model is designed for heavy-duty tasks, making it ideal for professional landscapers and homeowners alike. Its ergonomic design ensures user comfort during prolonged use, while the adjustable handlebar allows for optimal control, enabling precision cutting in hard-to-reach areas. The vibration-dampening system enhances overall comfort, reducing fatigue and allowing users to tackle larger projects with ease.

Next in the lineup is the WH4818 (966638602), which balances power and versatility. This model features a robust engine that delivers reliable performance, making it suitable for both professional and amateur gardeners. The lightweight design makes it easy to maneuver, while the intuitive controls enhance user experience. The WH4818 also incorporates Husqvarna’s Smart Start technology, which facilitates easier starting with minimal effort. This brushcutter is equipped with a dual-line cutting system that provides exceptional cutting efficiency, allowing for neat and tidy trimming in various terrains.

The WH3616 (966638601) represents a more compact option without compromising on performance. Equipped with a user-friendly interface and a sturdy engine, this model is perfect for those seeking a reliable tool for residential use. Its lightweight chassis allows for easy portability, making it an excellent choice for homeowners set on maintaining their gardens. The WH3616 is designed with an auto-return stop switch, ensuring the engine is ready to start whenever the user is prepared to go to work.

All three Husqvarna models are engineered with durability in mind, featuring high-quality materials and construction to withstand harsh working conditions. With advanced features like anti-vibration systems, adjustable handles, and efficient cutting mechanisms, the WH5218, WH4818, and WH3616 deliver exceptional performance and comfort. Whether for professional landscaping or home maintenance, these brushcutters provide the perfect blend of power, ease of use, and reliability, making them indispensable tools in any outdoor toolkit. Husqvarna continues to set the standard for outdoor equipment, providing users with innovative solutions to meet their cutting needs.