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 Adjustment Cutting 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