Manuals / Husqvarna / Lawn and Garden / Lawn Mower

Husqvarna RZ4221 BF / 967176101 warranty Troubleshooting, Problem / Cause

Models: RZ4221 BF / 967176101

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TROUBLESHOOTING

TROUBLESHOOTING

Problem / Cause

Engine will not start

•Blade lever is engaged

•Steering controls are not locked in neutral position

•Driver is not sitting in driver’s seat

•Parking brake is not activated

•Battery is dead

•Contamination in carburetor or fuel line

•Fuel supply is closed or tap for fuel tank is in wrong position

•Clogged fuel filter or fuel line

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 Safety System in the Maintenance section

Engine runs rough

•Faulty carburetor

•Choke control used with warm engine

•Cylinder head bolts are loose

•Clogged fuel filter or jet

•Clogged ventilation valve on fuel cap

•Fuel tank nearly empty

•Fouled spark plug

•Spark plug is loose

•Defective ignition cable

•Defective spark plug electrode

•Defective spark plug connection

•Rich fuel mixture or fuel-air mixture

•Wrong fuel type

•Water in fuel

•Clogged air filter

Engine seems weak

•Clogged air filter

•Fouled spark plugs

•Carburetor incorrectly adjusted

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Husqvarna RZ4221 BF / 967176101 warranty Troubleshooting, Problem / Cause

Contents

RZ4221 BF Operator Manual2012 All rights reserved Orangeburg, SC. Printed in U.S.A Driving and Transport on Public Roads CONTENTSPage Driving and Transport on Public Roads INTRODUCTIONCongratulations GeneralManufacturing Number Good ServiceINTRODUCTION Xxxx xxxxxx xxxxx xxxx xxxxxx xxxxxxxxx. xx xxxxxxxx xxxxxx SYMBOLS AND DECALSIMPORTANT INFORMATION remove key before SYMBOLS AND DECALSTHIS CUTTING MACHINE IS CAPABLE OF AMPUTATING HANDS AND FEET SAFETYSafety Instructions SAFETY INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR DEATHOperate machine only in daylight or good artificial light SAFETYNever use the machine when barefoot Personal Safety EquipmentWhen using the machine, approved at hand when using the machineSAFETY ChildrenAllow engine and exhaust system to cool before refueling Safe Handling of GasolineThe engine and the exhaust system become very hot during operation There is risk for burns if touchedUse protective glasses for maintenance work General MaintenanceSAFETY Use protective goggles SAFETYTowing TransportSpark Arrestor SAFETYControl Locations CONTROLSCONTROLS Steering Control Levers1. Forward 2. Neutral 3. Neutral slot, Neutral lock 4. Reverse CONTROLS Ignition SwitchParking Brake Throttle ControlRisk for burns if touched Choke ControlRefueling The engine and the exhaust system, become very hot during operationIMPORTANT INFORMATION Always use the high position F to transport Fuel Shut Off ValveMower Deck Lifting Lever Trackingthe engine stopped the ignition key removed No adjustments or maintenance to be carried out unlessBlade Control Lever Bypass LinkagesTo move forward and backward OPERATIONTraining SteeringStarting the Engine Before StartingOPERATION 6. Move the throttle to the middle position OPERATIONTurn to START position OPERATIONIMPORTANT INFORMATION Open the fuel valve5. Remove RED cable last from both batteries Jumper cablesTo remove cables, reverse order OPERATIONRunning Ensure that no one is near mower when engaging blade control leverOPERATION OPERATION Operating on HillsIMPORTANT INFORMATION OPERATION Mowing TipsOPERATION Stopping the EngineIMPORTANT INFORMATION OPERATION Make no adjustments without the engine stoppedMoving Machine By Hand the ignition key removed the parking brake activatedMaintenance Schedule MAINTENANCEEngage the parking brake Before performing any service or adjustment checklistPlace the Blade-switch in the disengaged position Turn the ignition switch to OFF position and remove the keyAlways use protective glasses when handling the battery BatteryCleaning battery and terminals Always use two wrenches for the terminal screws Replacing batteryIMPORTANT INFORMATION Safety SystemTire Pressures MAINTENANCEMAINTENANCE V-beltsDeck Belt To replace deck beltCutting Blades Belt installationBlade Replacement EZT Belt1. Engage the parking brake Adjusting the Mower Deck2. Place the Blade switch in the disengaged position 3. Turn ignition switch to OFF position and remove the keyCaster Wheels CleaningRemoval and installation of caster wheel Use protective glasses when cleaning and washingGeneral LUBRICATIONSteering Control Shafts Front Wheel MountFront Wheel Bearings Engine LubricationProblem / Cause TROUBLESHOOTINGProblem / Cause TROUBLESHOOTINGEngine overheats Clogged air intake or cooling fins Engine overloaded STORAGE ServiceWinter Storage WIRING DIAGRAM Engine TECHNICAL DATAOverall dimensions 967017101TECHNICAL DATA Torque SpecificationsHEX HEAD CAP SCREWS U.S. Standard HardwareUSA requirements CONFORMITY CERTIFICATESDate, mtr reading, stamp, sign SERVICE JOURNALDelivery Service ActionAction 25-Hour ServiceAfter the First 10 Hours SERVICE JOURNALAction 50-Hour Service100-Hour Service SERVICE JOURNALAction 300-Hour ServiceAt Least Once Each Year SERVICE JOURNALAction SERVICE JOURNALDate, mtr reading, stamp, sign Page 2012-06-01 115 498228 Rev A