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Operator Manual
Gasoline containing up to 10% ethanol (E10) is
acceptable for use in this machine. The use of any
gasoline exceeding 10% ethanol (E10) will void
the product warranty.
RZ4221TF / 967036502
Please read the operator manual carefully and make sure you
understand the instructions before using the machine.
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Table of Contents
Related Manuals for Husqvarna RZ4221TF
Summary of Contents for Husqvarna RZ4221TF
- Page 1 The use of any gasoline exceeding 10% ethanol (E10) will void the product warranty. RZ4221TF / 967036502 Please read the operator manual carefully and make sure you understand the instructions before using the machine.
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Page 2: Conformity Certificates
CONFORMITY CERTIFICATES USA requirements Labels are placed on the engine and/or in the engine compartment stating that the machine will fulfill the requirements. This is also applicable to special requirements for any of the states, (California emission rules etc.). Do not remove any of these labels. -
Page 3: Table Of Contents
CoNTENTS INTRODUCTION ............... 4 Running ..............18 Driving and Transport on Public Roads ...... 4 Stopping the Engine ..........19 Towing ................. 4 Operating On Hills ............ 19 Operating ..............4 Mowing Tips ............. 20 Good Service .............. 5 Jumper Cable Use ..........20 Manufacturing Number ......... -
Page 4: Introduction
INTRoDUCTIoN Congratulations Operating Thank you for purchasing a Husqvarna ride-on mower. This This machine is constructed only for mowing grass on lawns machine is built for superior efficiency to rapidly mow primarily and even ground without obstacles such as stones, tree large areas. -
Page 5: Good Service
INTRoDUCTIoN Good Service Husqvarna's products are sold only in specialized retail stores with complete service. This ensures that you as a customer receive only the best support and service. Before the product is delivered, the machine has, for example, been inspected and adjusted by your retailer. -
Page 6: Symbols And Decals
SYMBOLS AND DECALS These symbols are found on the machine and in the operator manual. Study them carefully so that you know what they mean. IMPORTANT INFORMATION Xxxx xxxxxx xxxxx xxxx WARNING! Xxxx xxxxxx xxxxx xxxx xxxxxxxxx xxxxxxxxx xxxxxx xxxxxxxxx. xx xxxxxxxx xxxx xxxxxx. xxxxxx xxxxxxxxx. -
Page 7: Safety Instructions
SAFETy Safety Instructions • Watch for traffic when operating near or crossing These instructions are for your safety. Read them carefully. roadways. General Operation • Use extra care when loading or unloading the machine into a trailer or WARNING! THIS CUTTING MACHINE IS CAPABlE truck. -
Page 8: Slope Operation
SAFETy Slope Operation Slopes are a major factor related to loss of control and tip-over WARNING! CHIlDREN CAN BE INJURED By accidents, which can result in severe injury or death. Operation THIS EQUIPMENT. The American Academy of Pediatrics on all slopes requires extra caution. If you cannot back up the recommends that children be a minimum of 16 years of age slope or if you feel uneasy on it, do not mow it. -
Page 9: General Maintenance
SAFETy • Never fill containers inside a vehicle or on a truck or trailer bed with plastic liner. Always place containers on the WARNING! The engine must not be started when ground away from the vehicle when filling. the driver’s floor plate or any protective plate for the mower •... -
Page 10: Transport
• Regularly clean deck and underside of deck, avoid A spark arrestor for the muffler is available through your spraying engine and electrical components with water. authorized Husqvarna dealer. Transport WARNING! Engine exhaust and certain vehicle WARNING! Use extreme caution when loading the components contain or emit chemicals considered to cause machine into a truck or trailer using ramps. -
Page 11: Control Locations
CoNTRolS This operator manual describes the Husqvarna Zero Turn Rider. The rider is fitted with a Kawasaki four-stroke overhead valve engine. Transmission from the engine is made via a belt-driven hydraulic pumps. Using the left and right steering controls, the flow is regulated and thereby the direction and speed. -
Page 12: Steering Control Levers
CoNTRolS Steering Control Levers WARNING! The machine can turn very rapidly if one steering control is moved much further forward than the other. Park Brake The machine’s speed and direction are continuously variable using the two steering controls. The steering controls can be moved forward or backward about a neutral position. -
Page 13: Throttle Control
CoNTRolS Throttle Control Service Minder The throttle control regulates the engine speed and thereby The service minder displays the total number of hours the the rate of rotation of the blades, assuming the blade switch is engine has run and indicates when the engine and mower pulled out, see Engaging the Mower Deck. -
Page 14: Fuse
CoNTRolS Fuse Cutting Height Lever The 20 amp primary fuse is located on the left hand side of the machine. It is accessed by tilting the seat forward. The fuse is IMPORTANT INFORMATION Always raise the deck to the a flat pin type used in automobiles. highest position for transport. -
Page 15: Fuel Tank
CoNTRolS Fuel Tank IMPORTANT INFORMATION Experience indicates that alcohol blended fuels (called gasohol, ethanol or methanol) can attract moisture which leads to separation and formation of acids during storage. Acidic gas can damage the fuel system of an engine while in storage. To avoid engine problems, the fuel system should be emptied before storage of 30 days or longer. -
Page 16: Operation
oPERATIoN Before Starting Read the Safety section and following pages, if you are unfamiliar with the machine. Read the sections on Safety and Controls before starting the machine. Training Perform the daily maintenance before starting (see Due to unique steering capabilities, zero turn mowers are far Maintenance Schedule in the Maintenance section). -
Page 17: Starting The Engine
oPERATIoN Starting the Engine Move the steering controls outward to the locked (outer) neutral position. Sit on the seat. Raise the mower deck by pushing the release button on the top of the lifting lever. Pull the lifting lever backward to the locked (transport) position. -
Page 18: Running
oPERATIoN Press in and turn the ignition key to the start position. Push the release button on the cutting height lever and move lever to the pin, release the button. IMPORTANT INFORMATION Do not run the starter for Move throttle control to full throttle. more than 5 seconds each time. -
Page 19: Stopping The Engine
oPERATIoN Stopping the Engine When the machine is standing still, activate the park brake by pushing the lever release button and pulling the lever Move the throttle to the minimum position (tortoise upward. symbol). Move the steering controls outward. If the engine has been worked hard, allow it to idle at least 60 seconds to attain a normal operating temperature Disengage the mower deck by pressing the blade switch before stopping. -
Page 20: Mowing Tips
oPERATIoN Mowing Tips Weak Battery • Observe and flag rocks and other fixed objects to avoid If the battery is too weak to start the engine, it should be collisions. recharged. (See Battery in the Maintenance section.) • Begin with a high cutting height and reduce it until the If jumper cables are used for emergency starting, follow this desired mowing result is attained. -
Page 21: Moving Machine By Hand
oPERATIoN Moving Machine By Hand When pushing or pulling the mower, engage the EZT bypass WARNING! Bypass linkages are located close to linkages. The EZT bypass linkages are located on the rear of the muffler. To prevent burns, the engine should be shut off the frame, below the rear engine guard. -
Page 22: Maintenance Schedule
MAINTENANCE Maintenance Schedule The following is a list of maintenance procedures that must be recommended to maintain your machine in the best possible performed on the machine. For those points not described in condition and to ensure safe operation. this manual, visit an authorized service workshop. An annual Read General Maintenance in the Safety section. - Page 23 MAINTENANCE At least Maintenance interval Daily once in hours each MAINTENANCE Before After year ■ Check/adjust throttle cable ● ● Check the condition of belts, belt pulleys ■ ■ Change the engine oil ■ ■ Replace the engine oil filter ■...
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Page 24: Battery
MAINTENANCE Battery STANDARD STATE APPROXIMATE BATTERY CHARGING TIME* TO FULL CHARGE AT 80 F / 27 Your mower is equipped with a maintenance free battery and BATTERY Maximum Rate at: does not need servicing. However, periodic charging of the CHARGE battery with an automotive type battery charger will extend its 50 Amps 30 Amps... -
Page 25: Safety System
Perform a standstill test and check that there is sufficient braking action. The engine can only be started when: To adjust the park brake, contact the Husqvarna service • The mower deck is disengaged. workshop. -
Page 26: Caster Wheels
MAINTENANCE Caster Wheels V-belts Check every 200 hours. Check that wheels rotate freely. If Check every 100 hours of operation. Check for severe wheels do not rotate freely take the unit to your dealer for cracking and large nicks. service. NOTE: The belt will show some small cracks in normal Foam filled tires or solid tires will void the warranty. -
Page 27: Adjusting The Mower Deck
MAINTENANCE Adjusting the Mower Deck Turn any blade to align with the deck front-to-rear. If the front blade tip does not measure " to ½" higher in the Leveling deck rear—with a or adjustable wrench, turn the nuts on the Adjust the deck while the mower is on a level surface. -
Page 28: Cutting Blades
CAUTION! Use protective glasses when cleaning and washing. IMPORTANT INFORMATION Special blade bolt is heat Hardware treated. Replace with a Husqvarna bolt if required. Do not use lower grade hardware than specified. Check daily. Inspect the entire machine for loose or missing hardware. -
Page 29: Lubrication
Transmission The transmission is maintenance free with no need for level checks or oil changes. If a leak occurs, replace the unit or contact your Husqvarna dealer. -
Page 30: Troubleshooting
TRoUBlESHooTING Problem / Cause Engine will not start Engine overheats Blade switch is engaged Clogged air intake or cooling fins Steering controls are not locked in the neutral position Engine overloaded Park brake is not activated Poor ventilation around engine Battery is dead Defective engine speed regulator Contamination in the carburetor or fuel line... -
Page 31: Storage
Never use Always use genuine Husqvarna spare parts. gasoline for cleaning. Use a degreaser and warm water An annual check-up at an authorized service workshop is a instead. -
Page 32: Schematic
SCHEMATIC... -
Page 33: Technical Data
TECHNICAl DATA Engine Frame Manufacturer Kawasaki Cutting Width 107 cm Type FX651V Cutting Height 3.8 - 10.2 cm Power 15.3 kW @ 3600 RPM Uncut Circle Lubrication Pressure with oil filter Number of Blades Fuel Min 87 octane unleaded (Max Blade Length 37 cm ethanol 10%, Max MTBE 15%) -
Page 34: Torque Specifications
TECHNICAl DATA Torque Specifications Standard " fasteners 18 ft/lb (25 Nm) Engine crankshaft bolt 75 ft/lb (100 Nm) Standard " fasteners 33 ft/lb (44 Nm) Deck pulley bolts 75 ft/lb (100 Nm) Standard " fasteners 52 ft/lb (70 Nm) Lug nuts 75 ft/lb (100 Nm) Standard ½”... -
Page 35: Service Journal
SERVICE JoURNAl Action Date, mtr reading, stamp, sign Delivery Service Charge the battery Adjust the tire pressure of all wheels to 15 PSI (1 bar) Mount the steering controls in the normal position Connect the contact box to the cable for the seat’s safety switch Check that the right amount of oil is in the engine Adjust the position of the steering controls Fill with fuel and open the fuel shut off valve... -
Page 36: Hour Service
SERVICE JoURNAl Action Date, mtr reading, stamp, sign After the First 10 Hours Change engine oil Date, mtr reading, stamp, sign 25-Hour Service Check the fuel pump’s air filter Sharpen/Replace mower blades if required Check the tire pressures Check battery with cables Lubricate according to lubrication chart Check/clean the engine’s cooling air intake Clean the air cleaner’s foam pre-filter... - Page 37 SERVICE JoURNAl Action Date, mtr reading, stamp, sign 100-Hour Service Perform the 25-hour service Perform the 50-hour service Change the engine oil filter Clean/replace the spark plugs Replace the fuel filter Check V-belts Check tighten caster wheel axle bolts (every 200 hours) Change the air filter’s paper cartridge Change hydraulic pump oil and filter.
- Page 38 SERVICE JoURNAl Action Date, mtr reading, stamp, sign At Least Once Each Year Clean the engine’s cooling air intake (25 hours) Replace the air cleaner’s foam pre-filter (300 hours) Replace the air filter’s paper cartridge Change the engine oil (50 hours) Replace the engine oil filter (100 hours) Check/adjust the cutting height Check/adjust the park brake (50 hours)
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