Husqvarna WH4818 / 966638602, WH5218 / 966638603, WH3616 / 966638601 Safety System, Function Check

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MAINTENANCE

Safety System

The machine is equipped with a safety system that prevents starting under the following conditions.

The engine can only be started when:

1.the blades are disengaged.

2.the speed control is in the start position.

Make daily inspections to ensure that the safety system works by attempting to start the engine when one of the conditions is not met.

If the machine starts when one of these conditions is not met, turn the machine off and repair the safety system before using the machine again.

Function Check

Check the function of the safety electrical system on a regular basis.

1.Engine must stop if blades are engaged without operator presence levers held down.

2.Engine must stop if the speed control is taken out of the start position without holding down operator presence levers.

3.Engine must not start unless blades are off and the speed control is in the start position.

WARNING!

Do not operate the mower if the interlock safety system allows operating or starting in any unsafe condition.

2

1

8062-044

1.Blade engagement control

2.Speed control lever

Check the safety system

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Contents Operator Manual All rights reserved Contents Page Driving and Transport on Public Roads IntroductionCongratulations GeneralManufacturing Number Good ServiceSymbols and decals General Operation SafetySlope Operation Personal Safety EquipmentChildren Safe Handling of Gasoline General Maintenance Transport Control Locations ControlsRecoil Starter Grip Ignition SwitchDrive Levers Ground Speed Control Operator Presence SwitchesChoke Control Throttle Control Tracking AdjustmentNeutral Lock Optional Service MeterParking Brake Blade Engagement ControlFuel Tank Fuel Shutoff ValveBefore Starting OperationStarting the Engine Speed control in the start position Operating on Hills RunningReverse TrackingMowing Tips Stopping the Engine StoppingEmergency Stop Normal operating stopShut OFF the fuel valve Cutting Height Table Cutting Height AdjustmentCutting Height Table It may be necessary to readjust drive and brake linkagesBefore After MaintenanceMaintenance Schedule Daily Maintenance interval Least Hours Once EachMaintenance Function Check Safety SystemDeck Belt Tire PressuresReplacing belt Cutting Blades Blade replacementWashing CleaningHardware Under side of rear deckGeneral Front Wheel Mount LubricationFront Wheel Bearings Problem Cause TroubleshootingTroubleshooting Winter Storage ServiceLower Harness Harness Adapter Upper Harness Technical Data WH5218 Engine HEX Head CAP Screws USA requirements CONForMITY CertificatesDelivery Service Service JournalAfter the first 8 hours Hour ServicePerform 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.
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