AIR Intake System, AIR Filter Replacement | Husqvarna 4421-D/DX/DXL

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

Page 47

Image 49

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

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 Models 364 2413 ALL HUV 4421 Four Passenger Models 366 Proposition 65 State of California Practice Safety General Warnings Safety Details Disabling the Vehicle Connecting the Battery GASOLINE/DIESEL Vehicles Disconnecting the Battery GASOLINE/DIESEL VehiclesDisable the vehicle. See Disabling the Vehicle on Recycling LEAD-ACID Batteries Model Identification General Information Serial Number Decal Controls and Indicators Instrument Panel Gasoline Vehicles KEY Switch Diesel Vehicles KEY Switch Gasoline VehiclesFORWARD/REVERSE Control Accelerator Pedal Brake Pedal Steering Adjustment LockPark Brake HIGH-TEMPERATURE Warning Light Diesel Vehicles only Volt Accessory OutletLOW OIL Warning Light Fuel GAUGE/HOUR Meter Roll-Over Protective Structure and Seat Belts ROLL-OVER Protective Structure and Seat Belts Seat Latch and Adjustment See Vehicle Specifications on PRE-OPERATION and Daily Safety Checklist Performance Inspection Driving Instructions Starting the Vehicle ALL-WHEEL Drive AWD Operation Stopping the Vehicle BED Latch and Prop RODParking and Leaving the Vehicle See General Warnings on Bed Latch Loading and Unloading Cargo Vehicle Load Capacities Transporting on a Trailer Towing with the Vehicle Storage Fuel Shut-off Valve Preparing the Vehicle for Extended Storage Returning the Stored Vehicle to Service Maintenance Periodic Service Schedule Periodic Service Schedule Regular Interval Kawasaki gasoline engines Adjust valve Periodic Lubrication Schedule Lubrication Points Gasoline Vehicles Brake Fluid Brake Fluid Reservoir OIL Pressure Gasoline Engine Engine OILEngine OIL Level Check Engine Oil Draining Engine OIL and Filter Change Engine Oil Drain Plug and Pan Gasoline Remove Engine Oil Filter Engine Oil Filling OIL Viscosity Front differential Gearcase Lubrication Rear differential Transmission Engine Coolant Level Check Engine Coolant Diesel Vehicles Air Filter Installation AIR Filter ReplacementAIR Intake System Air Filter Removal Biodiesel Fuel Diesel Vehicles only Fueling Instructions Diesel Vehicles Only Draining Water from Fuel Filter Fuel Filter Battery Remove the driver-side seat General Warnings on Using a Booster Battery Jump Starting Jump Starting Cleaning the Vehicle Electric Winch Accessory AccessoriesMUD Tire Option Subsequent Owner Registration GXP DXP DXL Vehicle Specifications Liquid Capacities Tire Pressure Warranties Warranty HOW to Make a Warranty Claim California Emission Control Warranty Statement Husqvarna Explanation of Emission Control Warranty Systems Covered Parts Description Page Page Page 103472526