Husqvarna Z4818BIA/968999250 manual Water in the fuel

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TROUBLE SHOOTING GUIDE

	• Water in the fuel.
	•	Clogged air filter.

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

The engine overheats.	•	Clogged air intake or cooling fins.
	•	Engine overloaded.
	• Poor ventilation around engine.
	• Defective engine speed regulator.
	• Soot in the combustion chamber.
	• Too little or no oil in the engine.
	•	Defective spark plugs.
	• Pre-ignition incorrect.

Battery not charging.	•	Poor contact with battery terminal
		cable connectors.

The machine moves slowly, unevenly, or not at all.

•Parking brake on.

•Bypass valve on pump open.

•Drive belt for the transmission gears slack or has come off.

Mower deck not engaging.	• Drive belt for the mower deck has come loose.
	• Contact for the electromagnetic coupling
	has loosened.
	• The blade switch is faulty or has come loose,
	from the cable contact.
	• The fuse has blown.

English-60

Image 62

Contents Z4818BIA/968999250 Page OPERATOR’S Manual Rider English-2 Introduction IntroductionGood Service Manufacturing NumberXxxxxxx xxxx xxxxxxxx xxx Xxxx xxxxxx Symbols and DecalsSymbols and Decals Greater Than Careful General Use Safety InstructionsSafety Instructions Hearing Do not Driving on SlopesDo as follows Children Maintenance Poisonous, and lethal gas Use protective glasses for maintenance work TransportCustomer responsibilities Controls Control LocationsTension Relief Lever Parking BrakeMotion Control Levers TrackingSeat adjustment knobs Fuel Shut Off ValveRefueling By pass linkage FusesChoke Control Ignition SwitchHour Meter Blade switch Throttle ControlAccessories Cutting height pedalTraining OperationOperation Before Starting Starting the EngineDepress the control for disengaging the mower deck Set the choke control USE Full Throttle When Mowing To start an engine with a weak battery To remove cables, reverse orderRunning Operating on hills Mowing Tips Stopping the Engine Moving by Hand Maintenance Schedule MaintenanceMaintenance = Described in this manual = Not described in this manua Replacing battery BatteryTo clean battery and terminals Ignition System Checking the Safety System Checking the Engines Cooling Air Intake Checking and Adjusting the Throttle CableChecking and Adjusting the Choke Cable Replacing the Air Filter Standard air filterChecking Tire Pressures Replacing the Fuel FilterChecking the Fuel Pump’s Air Filter Checking the V-belts Faulty adjustment can cause an accidentChecking the Parking Brake Deck beltDeck belt installation To replace IZT Integraded Zeroturn Transaxle belt Belt installationIZT belt IZT belt removalAlways use protective gloves when handling the blades Checking the BladesRemove blade bolt by turning counterclockwise Adjusting the Mower Deck Side-to-side adjustment To level deckFront-to-back adjustment To adjust anti-scalp rollers Removal and installation of caster wheel Cleaning and WashingUse protective glasses when cleaning and washing Caster WheelsParking brake Tracking adjustmentTo adjust parking brake Mower is tracking to the rightLubrication Schedule LubricationLubrication Front Wheel Mount Lubricating the CablesLubricating in Accordance with the Lubrication Schedule Front Wheel BearingsDeck outer spindle Engine Oil Changing the Engine OilChecking the Oil Level Changing the Oil Filter TransmissionProblem Cause Trouble Shooting GuideTrouble Shooting Guide Water in the fuel English-61 Storage ServiceStorage Winter StorageWiring Diagrams Wiring diagramZ4818BIA Technical DataTechnical Data Productivity Accessories Torque SpecificationsConformity Certificates USA requirementsDelivery Service Service JournalService Journal Action Date, mtr reading, stamp, signAfter the First 5-8 Hours Hour Service English-71 English-72 English-73 At Least Once Each Year English-75 109797R0108/10/05