Husqvarna Z4818BIA/968999250 manual Trouble Shooting Guide, Problem Cause

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TROUBLE SHOOTING GUIDE

Trouble Shooting Guide

Problem

Cause

 

 

 

The engine will not start.

The blade switch is engaged.

The steering controls are not locked in the neutral position.

The driver is not sitting in the driver’s seat.

The parking brake is not activated.

The battery is dead.

Contamination in the carburetor or fuel line.

The fuel supply is closed or the shut-off valve for the fuel tank is in the wrong position.

Clogged fuel filter or fuel line.

The starter does not turn the engine over.

Dead battery.

 

• Poor contacts on the battery terminal

 

 

cable connections.

 

Fuse blown.

 

Ignition system faulty.

 

• Fault in the starter safety circuit.

 

 

See Checking the Safety System on page 39.

 

 

 

The engine runs rough.

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 nearly 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.

English-59

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Contents Z4818BIA/968999250 Page OPERATOR’S Manual Rider English-2 Introduction IntroductionManufacturing Number Good ServiceSymbols and Decals Symbols and DecalsXxxxxxx xxxx xxxxxxxx xxx Xxxx xxxxxx Greater Than Careful Safety Instructions Safety InstructionsGeneral Use Hearing Do as follows Driving on SlopesDo not Children Maintenance Poisonous, and lethal gas Transport Use protective glasses for maintenance workCustomer responsibilities Control Locations ControlsParking Brake Tension Relief LeverTracking Motion Control LeversFuel Shut Off Valve Seat adjustment knobsRefueling Fuses By pass linkageHour Meter Ignition SwitchChoke Control Throttle Control Blade switchCutting height pedal AccessoriesOperation OperationTraining Starting the Engine Before StartingDepress the control for disengaging the mower deck Set the choke control USE Full Throttle When Mowing To remove cables, reverse order To start an engine with a weak batteryRunning Operating on hills Mowing Tips Stopping the Engine Moving by Hand Maintenance MaintenanceMaintenance Schedule = Described in this manual  = Not described in this manua To clean battery and terminals BatteryReplacing battery Ignition System Checking the Safety System Checking and Adjusting the Choke Cable Checking and Adjusting the Throttle CableChecking the Engines Cooling Air Intake Standard air filter Replacing the Air FilterChecking the Fuel Pump’s Air Filter Replacing the Fuel FilterChecking Tire Pressures Checking the Parking Brake Faulty adjustment can cause an accidentChecking the V-belts Deck beltDeck belt installation IZT belt Belt installationTo replace IZT Integraded Zeroturn Transaxle belt IZT belt removalChecking the Blades Always use protective gloves when handling the bladesRemove blade bolt by turning counterclockwise Adjusting the Mower Deck To level deck Side-to-side adjustmentFront-to-back adjustment To adjust anti-scalp rollers Use protective glasses when cleaning and washing Cleaning and WashingRemoval and installation of caster wheel Caster WheelsTo adjust parking brake Tracking adjustmentParking brake Mower is tracking to the rightLubrication LubricationLubrication Schedule Lubricating in Accordance with the Lubrication Schedule Lubricating the CablesFront Wheel Mount Front Wheel BearingsEngine Oil Changing the Engine Oil Deck outer spindleChecking the Oil Level Transmission Changing the Oil FilterTrouble Shooting Guide Trouble Shooting GuideProblem Cause Water in the fuel English-61 Storage ServiceStorage Winter StorageWiring diagram Wiring DiagramsTechnical Data Technical DataZ4818BIA Productivity Torque Specifications AccessoriesUSA requirements Conformity CertificatesService Journal Service JournalDelivery Service 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