Husqvarna RZ4621 BF / 966676501, RZ5424 / 966659301, RZ4623 / 966678201, RZ4621 CA Introduction

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INTRODUCTION

Congratulations

Thank you for purchasing a Husqvarna ride-on mower. This machine is built for superior efficiency to rapidly mow primarily large areas. A control panel easily accessible to the operator and a hydrostatic transmission regulated by steering controls both contribute to the machine’s performance.

This manual is a valuable document. Read the contents carefully before using or servicing the machine. The following of instructions (use, service, maintenance) by all who operate this machine is important for the safety of the operator and others. It can also considerably increase the life span of the machine and increase its resale value.

If you sell your machine, be sure to give the operator’s manual to the new owner.

The final chapter of this operator’s manual provides a Service Journal. Ensure that service and repair work are documented. A well-kept service journal reduces service costs for the maintenance and affects the machine’s resale value. Please contact your dealer for more information. Take the operator’s manual along when the machine is taken to your dealer for service.

General

In this operator’s manual, left and right, backward and forward are used in relation to the machine’s normal driving direction.

Continuous dedication to improve our products require that specifications and design are subject to change without notice.

Driving and Transport on Public Roads

Check applicable road traffic regulations before transporting on public roads. If the machine is transported, you must always use approved fastening equipment and ensure that the machine is well anchored. DO NOT operate this machine on public roadways.

Towing

If machine is equipped with a tow hitch, use extreme caution when towing. Never allow children or others in or on the towed equipment. Make wide turns to avoid jack-knifing. Travel slowly and allow extra distance to stop.

Do not tow on sloped ground. The weight of the towed equipment may cause loss of traction and loss of control.

Follow the manufacturer's recommendation for weight limits for towed equipment. Do not tow near ditches, canals, and other hazards.

Operating

This machine is constructed only for mowing grass on lawns and even ground without obstacles such as stones, tree stumps, etc. The machine can also be used for other tasks when equipped with special accessories provided by the manufacturer. Operating instructions for the accessories are provided with delivery. All other types of uses are incorrect. The manufacturer’s directions concerning operation, maintenance, and repairs must be carefully followed.

Lawn mowers and all power equipment, can be potentially dangerous if used improperly. Safety requires good judgement, careful use in accordance with these instructions and common sense.

The machine must only be operated, maintained, and repaired by persons familiar with the machine’s special characteristics and who are also knowledgeable about the safety instructions. Use only approved repair parts to maintain this machine.

Accident prevention regulations, other general safety regulations, occupational safety rules, and traffic regulations must be followed without fail.

Unauthorized modifications to the design of the machine may absolve the manufacturer from liability for any resulting personal injury or property damage.

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Contents Operator Manual All rights reserved Contents Page Introduction Manufacturing Number Good ServiceXxxx xxxxxx xxxxx xxxx Xxxxxx xxxxxxxxx. xx xxxxxxxx Symbols and decalsManual General Operation SafetySafety Instructions Never take passengers Slope Operation Personal Safety EquipmentChildren Safe Handling of Gasoline General Maintenance Risk of sparking Transport Regularly clean deckControl Locations ControlsSteering Control Levers Throttle Control Blade SwitchParking Brake Fuses Ignition SwitchChoke Control Fuel Tank Always raise the deck to the highest position for transport Cutting Height AdjusterFuel Shut Off Valve Tracking Knob Seat Adjustment LeverHour Meter Steering TrainingStarting the Engine Before StartingSet the throttle Turn to the start position To remove cables, reverse order Weak BatteryJumper Cables Secure selected cutting height RunningOperating On Hills Mowing Tips Disengage the mower deck and move throttle to minimum Stopping the EngineManual Transport Maintenance Schedule MaintenanceDaily Maintenance interval Least Hours Once Each Before After Year 100 300Before After 100 300 Daily At least Maintenance Once Interval Each Hours YearReplacing battery BatteryFuel Pump Air Filter Safety SystemTire Pressures Deck Belt Deck belt installationBelts Cutting Blades Blade replacementLeveling deck Adjusting the Mower DeckAnti-scalp Rollers Use protective glasses when cleaning and washing CleaningCaster Wheels HardwareGeneral LubricationFront Wheel Bearings Front Wheel MountDeck Spindles TransmissionTroubleshooting Troubleshooting Winter Storage ServiceStorage Schematics Transmission Technical DataRZ4222F RZ4621 RZ4621 BF RZ4621 CA Engine RZ4222F RZ4621 RZ4621 BF RZ4621 CA Frame DimensionRZ4623 RZ4824F Engine RZ4623 RZ4824F Frame RZ5424 Engine RZ5424 Frame DimensionsAccessories Torque SpecificationsStandard Hardware Metric Standard HardwareUSA requirements CONForMITY CertificatesDelivery Service Service JournalAfter the First 10 Hours Hour ServicePerform the 25-hour service At Least Once Each Year Service Journal Page 115 384327R1 08/26/10

RZ4222F / 966659401, RZ4621 BF / 966676501, RZ4621, RZ4621 CA, RZ4824F / 966678301 specifications

Husqvarna has long been a leader in outdoor power equipment, and its line of zero-turn mowers epitomizes innovation and performance. Among their notable models are the Husqvarna RZ4222F, RZ4621, RZ4824F, and RZ4621 BF, each designed to offer professional-grade results for both residential and commercial users.

The Husqvarna RZ4222F (966659401) features a robust 22 HP engine, providing ample power for tackling tough mowing tasks. With a 42-inch cutting deck, it balances maneuverability and efficiency, making it ideal for medium to large lawns. The RZ4222F is equipped with a dual hydrostatic transmission, allowing for smooth operation and improved control on varied terrain. Its ergonomic design includes an adjustable seat and easy-to-reach controls, ensuring comfort during extended use.

Moving on to the Husqvarna RZ4621, this model offers a 21 HP engine paired with a 46-inch cutting deck. It incorporates a commercial-grade hydrostatic transmission, providing exceptional speed and precision. The RZ4621 is admired for its advanced cutting technology, which delivers a clean and even cut thanks to its reinforced cutting deck. Its compact design enhances maneuverability in tight spaces, making it a versatile option for any landscaping challenge.

For those requiring a more powerful machine, the Husqvarna RZ4824F (966678301) stands out with its 24 HP engine and a 48-inch cutting deck. This model harnesses premium features like a heavy-duty frame, high-speed settings, and a wide range of cutting height adjustments, ensuring optimal performance in various conditions. The RZ4824F demonstrates Husqvarna's commitment to durability, offering an impressive lifespan even under rigorous usage.

Lastly, the RZ4621 BF (966676501) integrates advanced features aimed at user convenience and efficiency. With its durable construction and powerful engine, it excels in delivering professional-grade results. The RZ4621 BF is designed with user-friendly controls and enhanced visibility, allowing operators to maintain focus on their mowing tasks.

Each of these Husqvarna mowers features a blend of innovative technologies and user-oriented design. They are equipped with maintenance-friendly features like easy-to-access oil and filter replacements, ensuring longevity and reliability. The combination of power, precision, and comfort makes the Husqvarna RZ series a favored choice among homeowners and landscaping professionals alike. Whether you need a compact model for residential use or a robust machine for commercial applications, Husqvarna's range has a solution to meet your needs, ensuring a beautiful, well-manicured lawn with every pass.
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