Husqvarna RZ4623 Owners Manual

Husqvarna RZ4623 Manual

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  • Husqvarna RZ4623 | Owners Manual - Page 1
    Operator Manual RZ4621 / 966659101 RZ4621 CA / 966659201 RZ5424 / 966659301 RZ4222F / 966659401 RZ4621 BF / 966676501 RZ4623 / 966678201 RZ4824F / 966678301 RZ5424 / 966691901 Please read the operator's manual carefully and make sure you understand the instructions before using the machine
  • Husqvarna RZ4623 | Owners Manual - Page 2
    . Note that no legal demands can be placed based on the information contained in these instructions. Use only original parts for repairs. The use of other parts voids the warranty. Do not modify or install non-standard equipment to the unit without consent from the manufacturer. Modifications to the
  • Husqvarna RZ4623 | Owners Manual - Page 3
    31 Stopping the Engine 32 Manual Transport 33 Maintenance 34 Maintenance Schedule 34 Battery 36 Safety System 37 Fuel Pump Air Filter 37 Tire Pressures 38 Parking Brake 38 V-belts 39 Deck Belt 39 Cutting Blades 40 Blade replacement 40 Adjusting the Mower Deck 41 Leveling deck 41 Anti
  • Husqvarna RZ4623 | Owners Manual - Page 4
    practices can result in serious injury to the operator or other persons. The owner must understand these instructions, and must allow only trained persons who understand these instructions to operate the mower. Each person operating the mower must be of sound mind and body and must not be under the
  • Husqvarna RZ4623 | Owners Manual - Page 5
    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
  • Husqvarna RZ4623 | Owners Manual - Page 6
    need spare parts or support in service questions, warranty issues, etc., please consult the following professional: This Parts Manual belongs to the machine with the manufacturing number: Manufacturing Number The machine's manufacturing number can be found on the printed plate affixed to the engine
  • Husqvarna RZ4623 | Owners Manual - Page 7
    . Used in this publication to notify the reader of a risk of material damage, particularly if the reader should neglect to follow instructions given in the manual. Used also when there is a potential for misuse or misassembly. RN Reverse Neutral Fast Slow Choke Fuel Warning! Parking Brake CE
  • Husqvarna RZ4623 | Owners Manual - Page 8
    safety shields while engine is running Careful backing up, watch for other people Careful going forward, watch for other people Moving sharp blades under cover Battery acid is corrosive, explosive and flammable Warning! Rotating blades, keep away from the discharge deck Do not touch parts 8
  • Husqvarna RZ4623 | Owners Manual - Page 9
    in place and working • Slow down before turning. • Never leave a running machine unattended. Always turn off blades, set parking brake, stop engine, and remove keys before dismounting. • Disengage blades when not mowing. Shut off engine and wait for all parts to come to a complete stop before
  • Husqvarna RZ4623 | Owners Manual - Page 10
    this Operation Manual. Local laws may regulate the age of the user. • Keep machine free of grass, leaves or other debris buildup which can touch the hot exhaust or engine parts and burn. Do not allow the mower deck to plow leaves or other debris, causing buildup to occur. • Clean any oil or fuel
  • Husqvarna RZ4623 | Owners Manual - Page 11
    assembling or driving. • Always wear gloves when handling the blades. • Never wear loose clothing that can get caught in moving parts. lose traction. • Avoid starting, stopping, or turning on a slope. If the tires lose traction, disengage the blades and proceed slowly straight down the slope. •
  • Husqvarna RZ4623 | Owners Manual - Page 12
    responsible adult other than the operator. • Be alert and turn machine off if a child enters the area. • Before small children. • Never carry children, even with the blades shut off. They may fall off and be seriously a child. Be extra cautious when driving on slopes 8011-509 Never allow children to
  • Husqvarna RZ4623 | Owners Manual - Page 13
    The engine must not be started when the driver's floor plate or any protective plate for the mower deck's drive belt is removed is spilled on clothing, change clothing immediately. • Never overfill fuel tank. Replace gas cap and tighten securely. • Do not start the engine near spilled fuel. • Never
  • Husqvarna RZ4623 | Owners Manual - Page 14
    any adjustments or repairs with the engine running. • Check grass catcher components and the discharge guard frequently and replace with manufacturer's recommended parts, when necessary. • Mower blades are sharp. Wrap the blade or wear gloves, and use extra caution when servicing them. • Check brake
  • Husqvarna RZ4623 | Owners Manual - Page 15
    on the battery. The battery can explode repair parts for the machine. • The blades are sharp and can cause cuts and gashes. Wrap the blades or use protective gloves when handling them. • Check the parking brake's functionality regularly. Adjust and service as necessary. • The mulch blades
  • Husqvarna RZ4623 | Owners Manual - Page 16
    SAFETY • Allow the machine to cool before putting it in storage. • Regularly clean deck and underside of deck, avoid spraying engine and electrical components with water. Transport • The machine is heavy and can cause serious crushing injuries. Be extra cautious when it is loaded on or unloaded
  • Husqvarna RZ4623 | Owners Manual - Page 17
    manual describes the Husqvarna Zero Turn Rider. The rider is fitted with a four-stroke overhead valve engine. Transmission from the engine is made via a belt- driven hydraulic pumps 4. Fuel shut off valve 5. Fuses 6. Fuel tank cap 7. Seat adjustment lever 8. Blade switch 9. Ignition switch
  • Husqvarna RZ4623 | Owners Manual - Page 18
    moving forward, move the right control towards the neutral position. The rotation of the right wheel is reduced and the machine turns to the right. Zero turn can be achieved by moving one control backward (behind the neutral position) and carefully moving the other steering control forward from
  • Husqvarna RZ4623 | Owners Manual - Page 19
    . Avoid idling the engine for long periods, as there is a risk of fouling the spark plugs. USE FULL THROTTLE WHEN MOWING, for best mower performance and battery charging. Throttle control Blade Switch In order to engage the mower deck, pull the knob out; the mower blades are disengaged when the
  • Husqvarna RZ4623 | Owners Manual - Page 20
    and is used to start and stop the engine. Ignition switch Choke Control The choke control is used for cold starts in order to provide the engine with a richer fuel mixture. For cold starts ratings and functions: 20 Amp Primary fuse 7.5 Amp Mower deck coupling Fuses 20 8052-001 8052-001 8011-420
  • Husqvarna RZ4623 | Owners Manual - Page 21
    in storage. To avoid engine problems, the fuel system should be emptied before storage of 30 days or longer. Drain the gas tank, start the engine and let it run until the fuel lines and carburetor are empty. Use fresh fuel the next season. See Storage Instructions for additional information. Never
  • Husqvarna RZ4623 | Owners Manual - Page 22
    (13mm) increments. The heights are measured from the ground up to the blade tip with the engine not running. IMPORTANT INFORMATION In order to obtain an even cutting height, it is important that the air pressure in all tires is 15 psi / 103 kPa / 1 bar. The mower deck's lifting lever 8058-019 22
  • Husqvarna RZ4623 | Owners Manual - Page 23
    . The flash duration is one hour before and one hour after the interval. The CHG OIL icon will come on and shut off automatically. The hour meter cannot be manually reset. Hour meter Tracking Knob If the mower is not tracking straight, check the air pressure in both rear tires. Recommended air
  • Husqvarna RZ4623 | Owners Manual - Page 24
    operation Read "Safety Instructions" section and following pages, if you are unfamiliar with the machine. Training Zero turn mowers are far more maneuverable than typical riding mowers due to their unique steering capabilities. We suggest that this section be reviewed in its entirety prior to
  • Husqvarna RZ4623 | Owners Manual - Page 25
    • Read the sections Safety Instructions and Controls before starting the blade switch for engaging the mower blades must be depressed. • The parking brake must be on. • Both steering controls must be in the locked (outer) neutral position. Starting the Engine • Sit on the seat. • Raise the mower deck
  • Husqvarna RZ4623 | Owners Manual - Page 26
    to the locked (outer) neutral position. Move the throttle to the middle position. Place controls in neutral position 8061-026 Set the throttle If the engine is cold, the choke control should be pulled up or pushed forward, depending on model. 8058-134 Set the choke control 8058-133 26
  • Husqvarna RZ4623 | Owners Manual - Page 27
    If the engine does not start, wait approximately 10 seconds before retrying. Turn to the start position When the engine starts, choke). If your battery is too weak to start the engine, it should be recharged. (See "Battery" in the Maintenance Section.) Set the engine speed 8050-780 8050
  • Husqvarna RZ4623 | Owners Manual - Page 28
    of the BLACK cable to the NEGATIVE (-) terminal of the fully charged battery. • Connect the other end of the BLACK cable to a good CHASSIS GROUND on the mower with the discharged battery, away from the fuel tank and battery. To remove cables, reverse order • Remove BLACK cable first from chassis and
  • Husqvarna RZ4623 | Owners Manual - Page 29
    brake will shut off the engine. 2. Move the steering controls blades. Secure selected cutting height 4. Push the release button on the cutting height lever and move lever to the pin, release the button. 5. Set the cutting height with the cutting height adjustment lever. 8058-020 8058-024 Mower deck
  • Husqvarna RZ4623 | Owners Manual - Page 30
    on the spot (zero turn) can be achieved by moving one control backward (behind the neutral position) and carefully moving the other steering control forward from its neutral position. Set blade engagement and throttle control Operating On Hills Read the Safety Instructions "Driving on Slopes" in
  • Husqvarna RZ4623 | Owners Manual - Page 31
    wheels sink into the soft lawn, clumps build, and the grass clippings fasten under the cowling. • Hose the mower deck underside with water after each use. When cleaning, the mower deck shall be raised into the transport position. Make sure the mower is cooled and the engine is off. • Use compressed
  • Husqvarna RZ4623 | Owners Manual - Page 32
    it has been worked hard. Avoid idling the engine for longer periods, as there is a risk of the spark plugs fouling. • Disengage the mower deck by depressing the blade switch. 8058-134 Disengage the mower deck and move throttle to minimum • Raise the mower deck by pressing the release button on the
  • Husqvarna RZ4623 | Owners Manual - Page 33
    operation Manual Transport When pushing or pulling the mower, engage the EZT (Integrated Zeroturn Transaxle) bypass linkages. The EZT bypass linkages are located on the rear of the frame, below the rear engine guard. 1. Raise the deck into the highest cutting position. 2. Pull the EZT bypass
  • Husqvarna RZ4623 | Owners Manual - Page 34
    under the mower deck Start the engine and blades, listen for unusual sounds Check for damage Thoroughly clean around the engine Clean around belts, belt pulleys Check the tire pressures Before After Check battery connections Sharpen3)/ Replace mower blades Clean the engine's cooling air
  • Husqvarna RZ4623 | Owners Manual - Page 35
    , belt pulleys Change the engine oil 1) Replace the engine oil filter Clean/replace the spark plugs Replace the fuel filter Replace air filter 2) (paper filter) Check the caster wheels (every 200 hours) Replace the air cleaner's pre-filter 2) (foam) Check/adjust the mower deck Check the engine valve
  • Husqvarna RZ4623 | Owners Manual - Page 36
    first, then the RED battery cable and remove the battery from the machine. 3. Rinse the battery with plain water and dry. 4. Clean terminals and battery cable ends with wire brush until shiny. 5. Coat terminals with grease or petroleum jelly. 6. Reinstall battery. Replacing battery 1. Lift seat and
  • Husqvarna RZ4623 | Owners Manual - Page 37
    one of these conditions is not met, turn the machine off and repair the safety system before using the machine again. Make sure the engine stops when the park brake is not engaged and the operator leaves the seated position. Check that the engine stops if the mower blades are engaged and the driver
  • Husqvarna RZ4623 | Owners Manual - Page 38
    brake. Perform a standstill test and check that there is sufficient braking action. To adjust the parking brake, contact the Husqvarna service workshop. IMPORTANT INFORMATION The machine must be absolutely standing still when applying the parking brake. WARNING! Faulty adjustment will result
  • Husqvarna RZ4623 | Owners Manual - Page 39
    belt shields Deck belt installation NOTE: For ease in installing the deck belt, refer to the routing decal on the top of the deck. 1. Wrap the deck belt around the electric clutch pulley that is located on the engine shaft. 2. Route the belt forward and up onto the deck. 3. Place belt around spring
  • Husqvarna RZ4623 | Owners Manual - Page 40
    ground/grass (down) or "THIS SIDE UP" facing deck and cutter housing. 3. Install and tighten blade bolt securely. 4. Torque blade bolt to 90 ft/lbs (122 Nm). 1 2 IMPORTANT INFORMATION Special blade bolt is heat treated. Replace with a Husqvarna bolt if required. Do not use lower grade hardware
  • Husqvarna RZ4623 | Owners Manual - Page 41
    be adjusted slightly higher in the rear. NOTE: To insure accuracy of leveling procedure, mower deck drive belt must be installed prior to leveling deck. 1. Wear heavy gloves. Turn each outer blade tip to align with the deck or in a side-to-side manner. 2. Measure from the floor surface up to the
  • Husqvarna RZ4623 | Owners Manual - Page 42
    mower on a flat level surface. Anti-scalp rollers are properly adjusted when they are just slightly off of the ground when the deck approximately ¼" (6.5 mm) from ground. Do not adjust the rollers to support the deck. Anti-scalp rollers IMPORTANT INFORMATION The anti-scalp rollers must not be used
  • Husqvarna RZ4623 | Owners Manual - Page 43
    . Avoid spraying engine and electrical components with water. For models fitted with a cleanout port, attach the quick connect (from the accessory packet) to any garden hose. After mowing, snap the hose to the cleanout port and turn on water supply. Restart the mower and engage the blades to use the
  • Husqvarna RZ4623 | Owners Manual - Page 44
    Week 1/365 Every day Lubricate with grease gun Oil change Filter change Level check General Remove the ignition key to prevent unintentional movements during lubrication. When lubricating with an oil can, it must be filled with engine oil. When lubricating with grease, unless otherwise stated
  • Husqvarna RZ4623 | Owners Manual - Page 45
    not come into contact with belts or belt pulley drive surfaces. Deck Spindles Lower the cutting deck completely. If a grease gun Deck spindle 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
  • Husqvarna RZ4623 | Owners Manual - Page 46
    TROUBLESHOOTING Problem Engine will not start Starter does not turn the engine over Engine runs rough Engine seems weak Machine vibrates Cause • Blade switch is engaged. • Steering controls are not locked in the neutral position • Parking brake is not activated • Battery is dead • Contamination in
  • Husqvarna RZ4623 | Owners Manual - Page 47
    spark plugs • Poor contact of the battery terminal cable connections • Charging lead is disconnected • Parking brake on • Bypass valve on pump open • Drive belt for the transmission slack or has come off • Air trapped in hydraulic system • Drive belt for the mower deck has come loose • Contact for
  • Husqvarna RZ4623 | Owners Manual - Page 48
    up damage to the paint and spray a thin layer of oil on the underside of the mower deck to avoid corrosion. 2. Inspect the machine for worn or damaged parts and tighten any nuts or screws that may have become loose. 3. Change the engine oil; dispose of properly. 4. Empty the fuel tanks or add a fuel
  • Husqvarna RZ4623 | Owners Manual - Page 49
    schematics 49
  • Husqvarna RZ4623 | Owners Manual - Page 50
    J1349/ISO1585. Mass production engines may differ from this value. Actual power output for the engine installed in the final machine will depend on the operating speed, environmental conditions and other variables. 2) Refer to the engine manufacturer's owner manual for engine specifications. 50
  • Husqvarna RZ4623 | Owners Manual - Page 51
    Circle Number of Blades Blade Length Nose Rollers Sprung Seat Hour Meter Blade Engagement Deck Construction Productivity 191cm 40" 102cm 39.2" / 100 cm 43" / 109 cm 52" / 132 cm RZ4621 / 966659101 RZ4621 BF / 966676501 RZ4621 CA / 966659201 46" / 117cm 1.5 - 4" / 3.8 - 10.2 cm 0 2 15" / 38 cm
  • Husqvarna RZ4623 | Owners Manual - Page 52
    J1349/ISO1585. Mass production engines may differ from this value. Actual power output for the engine installed in the final machine will depend on the operating speed, environmental conditions and other variables. 2) Refer to the engine manufacturer's owner manual for engine specifications. 52
  • Husqvarna RZ4623 | Owners Manual - Page 53
    Nose Rollers Sprung Seat Hour Meter Blade Engagement Deck Construction Productivity Dimension Weight Base Machine Length Base Machine Height Base Machine Width Overall Width, Chute Up Overall Width, Chute Down TECHNICAL DATA RZ4623 / 966678201 46" / 117cm 1.5 - 4" / 3.8 - 10.2 cm 0 2 22.75" / 58
  • Husqvarna RZ4623 | Owners Manual - Page 54
    hp 1,2) Pressure with oil filter Min 87 octane unleaded engines may differ from this value. Actual power output for the engine installed in the final machine will depend on the operating speed, environmental conditions and other variables. 2) Refer to the engine manufacturer's owner manual for engine
  • Husqvarna RZ4623 | Owners Manual - Page 55
    Sprung Seat Hour Meter Blade Engagement Deck Construction Productivity Dimensions Weight Base Machine Length Base Machine Height Base Machine Width Overall Width, Chute Up Overall Width, Chute Down TECHNICAL DATA RZ5424 / 966691901 54" / 137cm 1.5 - 4" / 3.8 - 10.2 cm 0 3 18¼" / 46.4 cm No Standard
  • Husqvarna RZ4623 | Owners Manual - Page 56
    DATA Torque Specifications Engine crankshaft bolt Deck pulley bolts Lug nuts Blade bolt 50 ft/ 8 Size ft./lbs Nm ft./lbs Nm Shank Size (Diameter in inches, fine or coarse thread) ¼ 9 12 13 18 5/16 18 24 28 38 3/8 31 42 46 62 794 904 1205 Accessories Collection system 56
  • Husqvarna RZ4623 | Owners Manual - Page 57
    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 be supplied with the machine at delivery or written in the Engine manual. Take care of them as they are valuable documents. 57
  • Husqvarna RZ4623 | Owners Manual - Page 58
    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 Start the engine Check that there is drive to both wheels Check the mower deck
  • Husqvarna RZ4623 | Owners Manual - Page 59
    JOURNAL Action After the First 10 Hours Change engine oil Date, mtr reading, stamp, sign q Action 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
  • Husqvarna RZ4623 | Owners Manual - Page 60
    /adjust the parking brake Date, mtr reading, stamp, sign q q q q q Action 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
  • Husqvarna RZ4623 | Owners Manual - Page 61
    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 parking brake (50 hours) Clean/Change the spark plugs (100 hours) Change the fuel filter (100 hours) Check the engine valve clearance Date
  • Husqvarna RZ4623 | Owners Manual - Page 62
    Action SERVICE JOURNAL Date, mtr reading, stamp, sign 62
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  • Husqvarna RZ4623 | Owners Manual - Page 64
    P/N 115 384327R1 08/26/10
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Operator Manual
RZ4621 / 966659101
RZ4621 CA / 966659201
RZ5424 / 966659301
RZ4222F / 966659401
RZ4621 BF / 966676501
RZ4623 / 966678201
RZ4824F / 966678301
RZ5424 / 966691901
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.