Husqvarna 4421-D/DX/DXL owner manual AIR Intake System, AIR Filter Replacement, Air Filter Removal

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Air Intake System

AIR INTAKE SYSTEM

CAUTION

•Do not drill into the driver-side frame. Failure to heed this caution could damage the engine by allowing excessive contamination to enter the air intake system.

AIR FILTER REPLACEMENT

The air filter should be inspected periodically and replaced when necessary. Filter changes should not exceed the recommended interval. See Periodic Service Schedule on page 33. More frequent service may be required in extremely dirty operating environments. In the event of a loss of power, sluggish acceleration, or a roughly running engine, service the air filter immediately.

Air Filter Removal

1.Raise the cargo bed, and locate the air filter canister.

2.Release both canister tab locks (Figure 33).

3.Pull the canister cap away from the canister.

4.Remove the air filter cartridge (1). See following NOTE.

NOTE: The air filter cartridge is specifically designed for this engine. It only fits into the canister one way. Use only the Husqvarna part (P/N 603 00 00-10) designed for this engine.

218

Figure 33 Air Filter Cartridge

Air Filter Installation

1.Push the new air filter cartridge onto the nozzle inside the canister.

2.Place the canister cap, marked TOP, on the top center of the canister.

3.Secure the canister cap with both tab locks.

HUV 4421 Owner’s Manual

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Contents 4421-G/GX/GXL Gas 4421-D/DX/DXL Diesel Utility Vehicles Page Page Foreword Table of Contents Vehicle Specifications Warranties Safety Decal and Feature Identification 2412 ALL HUV 4421 TWO Passenger Models364 2413 ALL HUV 4421 Four Passenger Models366 Proposition 65 State of California Practice SafetyGeneral Warnings Safety DetailsDisabling the Vehicle Connecting the Battery GASOLINE/DIESEL Vehicles Disconnecting the Battery GASOLINE/DIESEL VehiclesDisable the vehicle. See Disabling the Vehicle on Recycling LEAD-ACID BatteriesModel Identification General InformationSerial Number Decal Controls and IndicatorsInstrument Panel Gasoline Vehicles KEY Switch Diesel Vehicles KEY Switch Gasoline VehiclesFORWARD/REVERSE Control Accelerator PedalBrake Pedal Steering Adjustment LockPark Brake HIGH-TEMPERATURE Warning Light Diesel Vehicles only Volt Accessory OutletLOW OIL Warning Light Fuel GAUGE/HOUR MeterRoll-Over Protective Structure and Seat Belts ROLL-OVER Protective Structure and Seat BeltsSeat Latch and Adjustment See Vehicle Specifications on PRE-OPERATION and Daily Safety ChecklistPerformance Inspection Driving InstructionsStarting the Vehicle ALL-WHEEL Drive AWD Operation Stopping the Vehicle BED Latch and Prop RODParking and Leaving the Vehicle See General Warnings onBed Latch Loading and Unloading CargoVehicle Load Capacities Transporting on a Trailer Towing with the VehicleStorage Fuel Shut-off Valve Preparing the Vehicle for Extended StorageReturning the Stored Vehicle to Service MaintenancePeriodic Service Schedule Periodic Service Schedule Regular Interval Kawasaki gasoline engines Adjust valve Periodic Lubrication Schedule Lubrication Points Gasoline Vehicles Brake Fluid Brake Fluid ReservoirOIL Pressure Gasoline Engine Engine OILEngine OIL Level Check Engine Oil Draining Engine OIL and Filter ChangeEngine Oil Drain Plug and Pan Gasoline Remove Engine Oil Filter Engine Oil Filling OIL ViscosityFront differential Gearcase LubricationRear differential TransmissionEngine Coolant Level Check Engine Coolant Diesel VehiclesAir Filter Installation AIR Filter ReplacementAIR Intake System Air Filter RemovalBiodiesel Fuel Diesel Vehicles only Fueling InstructionsDiesel Vehicles Only Draining Water from Fuel FilterFuel Filter BatteryRemove the driver-side seat General Warnings on Using a Booster Battery Jump StartingJump Starting Cleaning the VehicleElectric Winch Accessory AccessoriesMUD Tire Option Subsequent Owner Registration GXP DXP DXL Vehicle SpecificationsLiquid Capacities Tire Pressure Warranties WarrantyHOW to Make a Warranty Claim California Emission Control Warranty StatementHusqvarna Explanation of Emission Control Warranty Systems Covered Parts Description Page Page Page 103472526