Husqvarna WG4815E, WG3613E manual Trouble Shooting Guide, Problem Cause

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TROUBLE SHOOTING GUIDE

Trouble Shooting Guide

Problem		Cause

The engine will not start.

•The control for engaging the mower deck is in engaged position.

•The motion controls are not locked in the neutral position.

•Spark plug wires off.

•Contamination in the carburetor or fuel line.

•The fuel fuel shut-off valve is closed.

•Clogged fuel filter or fuel line.

•Fuel tank empty.

The engine runs unevenly.	•	Faulty carburetor.
	• The choke control is pulled out with a warm engine.
	•	Defective valves.
	• Defective piston, cylinder, piston ring, or
		cylinder head seal.
	• The cylinder head bolts are loose.
	• Clogged fuel filter or jet.
	• Clogged ventilation valve on the fuel cap.
	• Fuel tank near empty.
	•	Defective spark plugs.
	• The spark plugs are loose.
	•	Defective ignition cable.
	• Defective spark plug electrode.
	• Defective spark plug connection.
	• Rich fuel mixture or fuel-air mixture.
	•	Wrong fuel type.
	• Water in the fuel.
	•	Clogged air filter.

The engine seems weak.	•	Clogged air filter.
	•	Defective spark plugs.
	• Carburetor incorrectly adjusted. Worn engine.

English-51

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Contents WG4815E/968999120 WG3613E/968999117 Page WG3613E WG4815E OPERATOR’S Manual MowerEnglish-2 Introduction IntroductionManufacturing Number Good ServiceXxxxxxx xxxx xxxxxxxx xxx Xxxx xxxxxx Symbols and DecalsSymbols and Decals Keep a safe General Use Safety InstructionsSafety Instructions Age of the user Do not Driving on SlopesDo as follows Children Maintenance Use protective glasses at maintenance work Customer responsibilities TransportControl Locations ControlsControls Recoil Starter Grip Ignition SwitchOperator Presence Levers Motion control leversParking Brake Gear shift leverNeutral Bail Throttle Control and Choke Control USE Full Throttle When Mowing , forBlade Engagement Lever Choke ControlRefueling Close fuel valve at the end of each mowing job AccessoriesFuel Shut-off Valve Before Starting OperationOperation Starting the Engine Fuel shut-off valve, Open Presence lever Running GearboxMowing Tips ReversingTo operate on hills Mowing patterns Normal operating stop StoppingEmergency stop Stopping the Engine It may be necessary to readjust drive and brake linkages Adjustment of cutting heightCutting height table Axle Spacers Blade Position Spacers Height Caster arm Under cutter HousingAxle Spacers Blade Cutting Position Moving machine by Hand Maintenance Schedule MaintenanceMaintenance 300 Ignition System Functional check Checking the Safety SystemChecking the Engines Cooling Air Intake Checking and Adjusting Throttle and Choke CableReplacing the Air Filter Checking Tire Pressures Replacing the Fuel FilterChecking the Fuel Pump’s Air Filter Deck belt Checking the Parking BrakeChecking the V-belts Under side of rear deck Brake Rod AdjustmentChecking the Blades Hardware Cleaning and WashingCaster Wheels Blade replacement Lubrication Schedule LubricationLubrication Lubricating in Accordance with the Lubrication Schedule Lubricating the CablesFront Wheel Mount Front Wheel BearingsEngine oil Changing the Engine Oil Changing the Oil FilterChecking the Oil Level Mower deck lever Drive wheel idle arm, right and leftCoupling Rear wheel Problem Cause Trouble Shooting GuideTrouble Shooting Guide English-52 Storage ServiceStorage Winter StorageWiring diagrams Wiring DiagramsWG3613E WG4815E Technical DataTechnical data Overall dimensions Torque SpecificationsUSA requirements Conformity CertificatesService Journal Service JournalDelivery Service After the First 8 HoursHour Service English-60 English-61 English-62 At Least Once Each Year 106457R0108/11/05