Husqvarna HUV 4421-G / GXP Biodiesel Fuel Diesel Vehicles Only, Fuel Tank Gasoline Vehicles

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Fueling Instructions

NOTE: Gasoline vehicles: Use unleaded gasoline only. Whenever possible, avoid using oxygenated fuels and fuels that are blended with alcohol.

Diesel vehicles: Use only diesel fuel grade no. 2 with a cetane rating of 45 or higher.

2.Replace the fuel cap. Ensure that the cap is tightened securely.

3.Clean any spilled fuel from the cap or around the fuel cap area.

TO FUEL

 

FILTER

FUEL SHUT-

 

 

OFF VALVE

 

VENT

Figure 36 Fuel Tank – Gasoline Vehicles

TO FUEL

FILTER

VENT

Figure 37 Fuel Tank – Diesel Vehicles

Biodiesel Fuel (Diesel Vehicles Only)

Biodiesel has unique qualities that should be considered before it is used in the Kubota D722 diesel engine. During cold weather, plugged fuel lines, plugged fuel systems, hard starting, and other unknown failures can result from use of this fuel.

Biodiesel is an excellent medium for microbial growth and contamination. Microbial contamination can cause corrosion of the fuel system and prematurely plugged fuel filters. See following NOTE.

NOTE: Use of biodiesel may result in premature failure of fuel system components. Kubota has docu- mented problems such as plugged fuel filters and deteriorated fuel lines during testing of biodiesel.

Biodiesel can damage painted surfaces. Be sure to remove all spilled fuel immediately to help prevent dam- age to painted surfaces.

If biodiesel will be used in the Kubota D722 engine, be sure that it meets the following requirements:

•The fuel blend should contain no more than 5% biodiesel by volume.

•The petroleum portion of the fuel blend must meet ASTM standard D975 and the biodiesel portion of the fuel blend must meet ASTM standard D6751.

•For Europe, the fuel blend must meet the EN590 standard. See following CAUTION.

CAUT ION

•Never use any fuel that does not meet specifications or fuel in which the contents cannot be identified. Using blends higher than 5% biodiesel content can affect engine life and cause deterioration of hoses, tubelines, injectors, injector pump and seals.

•For more information on these fuel standards, please contact your nearest Kubota dealer.

Page 44 2007 HUV 4421 Gasoline and Diesel Vehicle Owner’s Manual

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Contents 2007 Utility Vehicles Page USA Foreword Table of Contents ALL HUV 4421 Models DRIVER/PASSENGER Warning Decal Rotating Parts Decal Diesel Vehicle Feature Identification DAN G E R Caut ION Safety DetailsCaut ION General Warnings DAN G E RAll-wheel Drive Warning Model Identification Controls and IndicatorsGeneral Information See General Warnings onControls and Indicators FORWARD/REVERSE Control KEY Switch Gasoline VehiclesKEY Switch Diesel Vehicles Accelerator PedalBrake Pedal Steering Adjustment LockVolt Accessory Outlet Park BrakeFuel GAUGE/HOUR Meter HIGH-TEMPERATURE Warning Light Diesel Vehicles onlyLOW OIL Warning Light Headlight ControlROLL-OVER Protective Structure and Safety Belts Release Safety BeltSeat Latch and Adjustment INGPRE-OPERATION and Daily Safety Checklist Exhaust system Check for leaksPerformance Inspection Driving InstructionsStarting the Vehicle ALL-WHEEL Drive AWD Operation Stopping the Vehicle BED Latch and Prop RODParking and Leaving the Vehicle Loading and Unloading Cargo Bed LatchVehicle Load Capacities Towing with the Vehicle Transporting on a TrailerStorage See General Warnings on DAN G E RPreparing the Vehicle for Extended Storage OFFReturning the Stored Vehicle to Service Gasoline vehiclesMaintenance MaintenancePeriodic Service Schedule Periodic Service ScheduleMonthly service by owner Annual service by Periodic Lubrication Schedule Periodic Lubrication ScheduleLubrication Points Gasoline Vehicles Brake Fluid Brake Fluid ReservoirEngine OIL OIL Pressure Gasoline EngineEngine OIL Level Check Do not remove dipstick while engine is runningEngine OIL and Filter Change Engine Oil DrainingEngine Oil Filter Change Drain the engine oil. See Engine Oil Draining onRemove Engine Oil Filter Engine Oil Filling OIL ViscosityGearcase Lubrication Front differentialTransmission Rear differentialAIR Intake System AIR Filter ReplacementEngine Coolant Diesel Vehicles Engine Coolant Level CheckFueling Instructions Air Filter InstallationAir Filter Removal Biodiesel Fuel Diesel Vehicles Only Fuel Tank Gasoline VehiclesDraining Water from Fuel Filter Diesel Vehicles OnlyBattery Fuel FilterBattery Using a Booster Battery Jump Starting Jump StartingElectric Winch Accessory Cleaning the VehicleAccessories See following NoteSubsequent Owner Registration MUD Tire OptionVehicle Specifications SpecificationsDIMENSIONS/WEIGHT Tire Pressure Warranty Information Carburetor Modification for High Altitude Operation Technical & Consumer Information Gasoline EnginesOxygenated Fuels Replacement Parts U.S. and California Clean Air ActsProblems That May Affect Emissions MaintenanceCalifornia Emission Control Warranty Statement Your Warranty Rights and ObligationsPage Page Page Husqvarna Part Number 531 30 Edition Code 0706C0307B
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