Husqvarna RZ4623 Owners Manual

Husqvarna RZ4623 Manual

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  • Husqvarna RZ4623 | Owners Manual - Page 1
    10% ethanol (E10) is acceptable for use in this machine.The use of any gasoline exceeding 10% ethanol (E10) will void the product warranty. Operator Manual RZ4623 / 967009802 Please read the operator's manual carefully and make sure you understand the instructions before using the machine.
  • Husqvarna RZ4623 | Owners Manual - Page 2
    altered without prior notification. 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
  • Husqvarna RZ4623 | Owners Manual - Page 3
    the Engine 33 Moving Machine By Hand 34 MAINTENANCE 35 Maintenance Schedule 35 Battery 37 Safety System 38 Parking Brake 38 Tire Pressures 39 Anti-scalp Rollers 39 V-belts 40 Deck Belt Removal 40 Cutting Blades 41 Blade replacement 41 Adjusting the Mower Deck 42 Leveling deck 42
  • 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
    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
  • Husqvarna RZ4623 | Owners Manual - Page 6
    spare parts or support in service questions, warranty issues, etc., please consult the following professional: This Operator 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
    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 decals. Only machines for European market Electromagnetic Compatibility (EMC) Compliance Australia and New Zealand only 7
  • 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
    the entire grass catcher, discharge guard, or other safety devices 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. 8011-512 Read the operator's manual before
  • Husqvarna RZ4623 | Owners Manual - Page 10
    SAFETY • Disengage blades when not mowing. Shut off engine and wait for all parts to come to a complete stop before cleaning the machine, removing the grass catcher, or unclogging the discharge guard. • Operate machine only in daylight or good artificial light. • Do not operate the machine while
  • Husqvarna RZ4623 | Owners Manual - Page 11
    Do not make sudden changes in speed or direction, which could cause machine to roll over. • Use extra care while operating machine with grass catchers or other attachments; they can affect the stability of the machine. Personal protective equipment 8011-670a WARNING! Do not drive up or down hills
  • Husqvarna RZ4623 | Owners Manual - Page 12
    mower. Keep children out of the mowing area and in the watchful care of a responsible adult other than the operator. Be extra cautious when driving than the operator. • Be alert and turn machine off if a child enters the area. Never carry children, even with the blades shut off. They may fall off
  • Husqvarna RZ4623 | Owners Manual - Page 13
    the fuel to expand, as the heat from the engine and the sun may otherwise cause the fuel to expand and overflow. Never fill the fuel tank indoors 8011-516 WARNING! 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. 13
  • 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
    performing maintenance on the battery. The battery 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
    drive system. • Load the unit onto truck or trailer by driving Make wide turns to avoid Husqvarna dealer. 16 WARNING! Escaping hydraulic oil mower is equipped with an internal combustion engine and should not be used on or near any unimproved forested, bush covered or grassy lands unless the engine
  • Husqvarna RZ4623 | Owners Manual - Page 17
    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. Using the left and right steering controls, the flow is regulated and thereby the direction and speed. Control Locations
  • 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 To engage the mower deck, pull the blade switch knob out. The mower blades are disengaged when the
  • Husqvarna RZ4623 | Owners Manual - Page 20
    Choke control Fuses Fuses are located on the left hand side of the machine. They are accessed by tilting the seat forward. They are flat pin fuses of the same type used in automobiles. There are two fuses with ratings and functions: 20 Amp Primary fuse 7.5 Amp Mower deck coupling Fuses 20 8058-134
  • Husqvarna RZ4623 | Owners Manual - Page 21
    safety instructions before refueling. The machine has one fuel tank, just behind the console. The tank capacity is 3.5 gallons (13.25 liters). Regularly check the gas cap gasket for damage and keep the cap properly tightened. The engine will run on a minimum of 85-octane unleaded gasoline (no oil
  • Husqvarna RZ4623 | Owners Manual - Page 22
    in all tires is 15 psi / 103 kPa / 1 bar. The mower deck's lifting lever Bypass Linkages The levers are located on each side of the rear of the unit below the rear engine plate. The bypass linkage is used when manually pushing or pulling the unit. See Moving Machine By Hand in the Operation
  • Husqvarna RZ4623 | Owners Manual - Page 23
    OIL (Change Oil) at 50 hour intervals. 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 speed. Tracking knob 8058-023 8058-134 8058-187 23
  • Husqvarna RZ4623 | Owners Manual - Page 24
    . Training Due to unique steering capabilities, zero turn mowers are far more maneuverable than typical riding mowers. This section should be reviewed in its entirety prior to attempting to move the mower under its own power. When first operating the mower or until becoming comfortable with controls
  • Husqvarna RZ4623 | Owners Manual - Page 25
    adjustment 5. Set the deck cutting height by inserting the lift pin into the desired cut height. Resecure the lift pin with the hairpin. 8050-852 Secure selected cutting height The following conditions must be fulfilled before the engine can be started: • The blade switch must be pressed
  • Husqvarna RZ4623 | Owners Manual - Page 26
    lever backward to the locked (transport) position. Mower deck lifting lever 3. Activate the parking brake by pushing the release button in and pulling the lever fully upwards. 8058-019 4. Disengage the mower blades by pressing the blade switch downwards. Pull parking brake upwards to activate
  • Husqvarna RZ4623 | Owners Manual - Page 27
    to the locked (outer) neutral position. 6. Move the throttle to the middle position. Place controls in neutral position 8058-186 Set the throttle 7. If the engine is cold, the choke control should be pulled up. 8058-148 Set the choke control 8058-148 27
  • Husqvarna RZ4623 | Owners Manual - Page 28
    . IMPORTANT INFORMATION Do not run the starter for more than 5 seconds each time. If the engine does not start, wait approximately 10 seconds before retrying. Turn to the start position 9. When the engine starts, immediately release the ignition key back to the run position. Push the choke control
  • Husqvarna RZ4623 | Owners Manual - Page 29
    The other vehicle must also be a 12-volt negative grounded system. Do not use your mower to start other vehicles. If the battery is too weak to start the engine, it should be recharged. (See Battery in the Maintenance section.) Jumper Cables Use 1. Connect each end of the RED cable to the POSITIVE
  • Husqvarna RZ4623 | Owners Manual - Page 30
    near mower when engaging blade switch. Make sure the work area is free from objects that could be thrown by the rotating blades. Mower deck lifting lever 4. Move throttle control to full throttle. 5. Engage the mower deck by pulling out the blade switch. 8058-187 8058-019 Set blade engagement and
  • Husqvarna RZ4623 | Owners Manual - Page 31
    position and push to the outside of the unit. Engage the parking brake. • To restart movement, release the parking brake. • Pull the control levers back to the center of the mower and press forward to regain forward motion. • Make all turns slowly. Place controls in neutral position 8058-077
  • Husqvarna RZ4623 | Owners Manual - Page 32
    Use compressed air to clean top surface of the deck. Avoid flooding water on top surface, engine and electrical components. • When the mulching kit is used, it is important that the mowing interval is frequent. WARNING! Clear the lawn of stones and other objects that can be thrown out by the blades
  • Husqvarna RZ4623 | Owners Manual - Page 33
    hard, allow it to idle at least 60 seconds to attain a normal operating temperature before stopping. To prevent fouling the spark plugs, avoid idling the engine for longer periods. Raise the mower deck 6. Turn the ignition key to the stop position. 7. Remove key. Always remove key when leaving the
  • Husqvarna RZ4623 | Owners Manual - Page 34
    Moving Machine By Hand When pushing or pulling the mower, engage the EZT 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. Engage the parking brake. 3. Pull the EZT bypass linkages up
  • Husqvarna RZ4623 | Owners Manual - Page 35
    clean around the engine Clean around belts, belt pulleys Check the tire pressures Check battery connections Sharpen3)/ Replace mower blades Clean the engine's cooling air intake 2) Clean the air cleaner's pre-filter 2) (foam) Clean the air cleaner's filter cartridge 2) (paper filter) Check/adjust
  • Husqvarna RZ4623 | Owners Manual - Page 36
    MAINTENANCE MAINTENANCE Check/adjust throttle cable Check the condition of belts, 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
  • Husqvarna RZ4623 | Owners Manual - Page 37
    MAINTENANCE Battery Your mower is equipped with a maintenance free battery and does not need servicing. However, periodic charging of the battery with an automotive type battery charger will extend its life. • Keep battery and terminals clean. • Keep battery bolts tight. • See chart for charging
  • Husqvarna RZ4623 | Owners Manual - Page 38
    MAINTENANCE Safety System The machine is equipped with a safety system that prevents starting or driving under the following conditions. The engine can only be started when: 1. The mower deck is disengaged. 2. The steering controls are in the outer, locked neutral position. 3. The parking brake is
  • Husqvarna RZ4623 | Owners Manual - Page 39
    rollers can be set in four positions. The rollers should be approximately ¼" (6.5 mm) from ground. Do not adjust the rollers to support the deck. IMPORTANT INFORMATION To avoid deck damage, the anti-scalp rollers must not be adjusted to support the deck. Anti-scalp rollers 8011-564 8058-135 39
  • Husqvarna RZ4623 | Owners Manual - Page 40
    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 loaded idler pulley. 4. Wrap the belt around the stationary idler pulley and around the mandrel housings
  • Husqvarna RZ4623 | Owners Manual - Page 41
    carried out by an authorized service workshop. Check the blades 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. 1 3. Seat the
  • Husqvarna RZ4623 | Owners Manual - Page 42
    insure accuracy of leveling procedure, mower deck drive belt must be installed prior to leveling deck. 1. Wear heavy gloves. Turn each blade tip to align side to side. 2. Measure from the floor surface up to the bottom of the blade tip on the discharge side of the mower deck. Record this measurement
  • 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
    after lubrication. It is important to avoid getting lubricant on the belts or the drive surfaces on the belt pulleys. Should this happen, attempt to clean them with spirits. If the belt continues to slip after cleaning, it must be replaced. Gasoline or other petroleum products must not be used to
  • Husqvarna RZ4623 | Owners Manual - Page 45
    is used, the foot plate must be removed. Lubricate with a grease gun, 2-3 strokes per spindle. 8058-068 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 dealer. 8058-136 45
  • 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
    or has come off • Air trapped in hydraulic system Mower deck not engaging • Drive belt for the mower deck has come loose • Contact for the electromagnetic coupling has loosened • Blade switch is faulty or has come loose from cable contact • Blown fuse Transaxle leaks oil • Damaged seals, housing
  • 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
    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 50
  • Husqvarna RZ4623 | Owners Manual - Page 51
    Rollers 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 967009802 Kohler Courage SV720 23 hp1,2) Pressure with oil filter Min 87 octane unleaded (Max
  • Husqvarna RZ4623 | Owners Manual - Page 52
    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. 52
  • Husqvarna RZ4623 | Owners Manual - Page 53
    the mower deck The safety switch in the seat The safety switch in the steering controls Parking brake functionality Driving forward Driving backward Engaging the blades Check the idle speed Check the engine high idle speed Inform the customer about: The need and advantages of following the service
  • Husqvarna RZ4623 | Owners Manual - Page 54
    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 55
    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) Change the air filter's paper cartridge Date, mtr
  • Husqvarna RZ4623 | Owners Manual - Page 56
    q Action At Least Once Each Year Clean the engine's cooling air intake (25 hours) Replace the air cleaner's pre-filter (foam) (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
  • Husqvarna RZ4623 | Owners Manual - Page 57
    Action SERVICE JOURNAL Date, mtr reading, stamp, sign 57
  • Husqvarna RZ4623 | Owners Manual - Page 58
    Action SERVICE JOURNAL Date, mtr reading, stamp, sign 58
  • Husqvarna RZ4623 | Owners Manual - Page 59
  • Husqvarna RZ4623 | Owners Manual - Page 60
    115 458527 Rev A www.husqvarna.com 2011-11-20
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Operator Manual
Please read the operator’s manual carefully and make sure you
understand the instructions before using the machine.
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.
RZ4623 / 967009802