Husqvarna RZ4221 BF / 967176101 warranty EZT Belt, Cutting Blades

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MAINTENANCE

EZT Belt

To replace EZT belt

Park the mower on a level surface. Engage the park brake.

EZT belt removal

NOTE: Be careful not to damage the fan blades on the EZT as this can affect cooling or damage the EZT.

1.Remove the deck belt (see To Replace Deck Belt in this section of the manual).

2.Create slack in the belt by pushing the spring loaded idler arm inward. Rotate arm to release belt tension.

3.The belt should now be able to be removed from the engine pulley and EZT pulleys.

Belt installation

4.Wrap the EZT belt around the EZT pulleys.

5.Route the belt around the inside of the idler pulley.

6.Wrap the belt around the engine pulley.

Cutting Blades

To attain the best mowing effect, it is important that blades are well sharpened and not damaged.

Replace blades that have been bent or cracked when hitting obstacles.

Let the service workshop decide whether a blade with large nicks can be repaired/ground or must be replaced. Balance the blades after sharpening.

Check the blade mounts.

Blade Replacement

1.Remove blade bolt by turning counterclockwise.

2.Install new or resharpened blade with stamped GRASS SIDE facing towards ground/grass (down) or THIS SIDE UP facing deck and spindle housing.

3.Seat the blade’s opening firmly onto the spindle housing.

4.Tighten blade bolt securely.

5.Torque blade bolt to 45-55 ft/lbs (60-75 Nm).

IMPORTANT INFORMATION

Special blade bolt is heat treated. Replace with a Husqvarna bolt if required.

Do not use lower grade hardware than specified.

WARNING!

The engine and the exhaust system, become very hot during operation. Risk for burns if touched. Allow engine and exhaust system to cool before servicing.

WARNING!

Blades are sharp. Protect your hands with gloves and/or wrap blades with a heavy cloth when handling.

The sharpening of blades should be carried out by an authorized service workshop.

3

2

1

8058-027

1.Blade

2.Blade bolt (special)

3.Spindle housing Blade attachment

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Contents Operator Manual All rights reserved Contents Page Introduction Good Service Manufacturing NumberSymbols and Decals Xxxx xxxxxx xxxxx xxxx Xxxxxx xxxxxxxxx. xx xxxxxxxxRemove key before Performing any General Operation SafetySafety Instructions Never take passengers Personal Safety Equipment Slope OperationChildren Safe Handling of Gasoline General Maintenance Risk of sparking Transport Spark ArrestorControls Control LocationsSteering Control Levers Throttle Control Ignition SwitchParking Brake Choke Control RefuelingTracking Fuel Shut Off ValveMower Deck Lifting Lever Always use the high position F to transportBlade Control Lever Bypass LinkagesSteering OperationTraining Before Starting Starting the EnginePlace controls in neutral position Open the fuel valve Jumper cables To remove cables, reverse orderRunning Operating on Hills Mowing Tips Stopping the Engine Moving Machine By Hand Maintenance Maintenance ScheduleDaily At least Maintenance interval Once Hours Each Always use protective glasses when handling the battery BatteryCleaning battery and terminals Safety System Tire PressuresTo replace deck belt BeltsDeck Belt EZT Belt Cutting BladesAdjusting the Mower Deck Leveling DeckUse protective glasses when cleaning and washing CleaningRemoval and installation of caster wheel Caster WheelsLubrication GeneralEngine Lubrication Front Wheel MountFront Wheel Bearings Steering Control ShaftsTroubleshooting Problem / CauseTroubleshooting Winter Storage ServiceStorage Wiring Diagram Technical Data Torque Specifications Standard HardwareConformity Certificates USA requirementsAction Date, mtr reading, stamp, sign Service JournalDelivery Service Hour Service After the First 10 HoursService Journal At Least Once Each Year Service Journal Page 115 498228 Rev a 2012-06-01

RZ4221 BF / 967176101 specifications

The Husqvarna RZ4221 BF, model number 967176101, epitomizes innovation and performance in the realm of residential lawn care. This robust zero-turn mower is designed for homeowners seeking efficiency, speed, and precision in managing their outdoor spaces.

One of the standout features of the RZ4221 BF is its powerful Briggs & Stratton engine, which provides a reliable 21 horsepower. This engine ensures optimal performance, allowing users to navigate various terrains with ease. The mower’s cutting deck spans 42 inches, allowing for a wide cutting swath that significantly reduces mowing time compared to traditional mowers. Moreover, the cutting deck is constructed from high-quality steel, ensuring durability and longevity.

The zero-turn technology in the RZ4221 BF offers exceptional maneuverability, allowing for sharp turns and easy navigation around obstacles such as trees, flower beds, and garden furniture. This feature is particularly beneficial for homeowners with intricate landscapes, as it enables precise trimming without damaging surrounding greenery.

Another highlight of this mower is its adjustable cutting height, which ranges from 1.5 to 4 inches. Users can easily customize the grass length to their preference, promoting a healthy lawn while adapting to seasonal changes. The ergonomic seat design enhances user comfort during extended mowing sessions, while the simplified dashboard provides intuitive controls for ease of operation.

The Husqvarna RZ4221 BF is also equipped with sturdy rear wheels, ensuring stability and traction on uneven terrain. This stability is accompanied by a robust frame, which contributes to the mower's durability and enhances overall performance.

In terms of maintenance, the RZ4221 BF is designed with user convenience in mind. The mower features an easy-access oil drain and integrated washing ports for hassle-free deck cleaning. Furthermore, the hydrostatic transmission system allows for smooth speed adjustments without the need for constant gear shifting, providing a smoother mowing experience.

In conclusion, the Husqvarna RZ4221 BF (967176101) combines powerful performance, innovative features, and user-friendly design, making it an excellent choice for homeowners looking to maintain their lawns effortlessly. Its robust construction, versatile cutting options, and advanced maneuverability make it a standout in the market. Whether you're tackling a small yard or a sprawling landscape, the RZ4221 BF is engineered to meet your mowing needs with efficiency and ease.
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