Related Manuals for Husqvarna EZ4624
Summary of Contents for Husqvarna EZ4624
- Page 1 Operator’s Manual EZ4624 / 968999688 EZ4220 / 968999693 EZ4824 / 968999697 Please read the operator’s manual carefully and make sure you understand the instructions before using the machine. English...
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Page 3: Table Of Contents
CONTENTS Introduction .............. 5 Maintenance ............37 General ..............5 Maintenance Schedule ........37 Driving and Transport on Public Roads ....5 Battery ..............39 Towing ..............5 Ignition System ........... 40 Operating .............5 Checking the Safety System ......40 Good Service ............6 Checking the Engine’s Cooling Air Intake .. - Page 4 WARNING! Failure to follow cautious operating 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 influence of any mind altering substance.
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Page 5: Introduction
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. -
Page 6: Good Service
INTRODUCTION Good Service Husqvarna’s products are sold all over the world and 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 7: Symbols And Decals
SYMBOLS AND DECALS These symbols are found on the machine and in the operator’s manual. Study them carefully so that you know what they mean. WARNING! Xxxx xxxxxx xxxxx xxxx xxxxxxxxx xxxxxx xxxxxxxxx. xx xxxxxxxx xxxx xxxxxx. Used in this publication to notify the reader of a risk of personal injury or death, particularly if the reader should neglect to follow instructions given in the manual. - Page 8 SYMBOLS AND DECALS Read Shut off engine and Keep a safe Use on slopes No passengers Operator’s remove key before distance from no greater Manual performing any the machine than 10° maintenance or repair work Whole body Severing of fingers Do not open or Careful backing up, Careful going...
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Page 9: Safety Instructions
SAFETY Safety Instructions These instructions are for your safety. Read them carefully. WARNING! This symbol means that important safety instructions need to be emphasized. It concerns your safety. IMPORTANT: THIS CUTTING MACHINE IS CAPABLE OF AMPUTATING HANDS AND FEET AND THROWING OBJECTS. - Page 10 SAFETY 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 cleaning the machine, removing the grass catcher, or unclogging the discharge guard. •...
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Page 11: Personal Safety Equipment
SAFETY Personal Safety Equipment WARNING! When using the machine, approved personal protective equipment (shown in illustrations) shall be used. Personal protective equipment cannot eliminate the risk of injury but it will reduce the degree of injury if an accident does happen. Ask your retailer for help in choosing the right equipment. -
Page 12: Children
SAFETY use on steep slopes. • Do not try to stabilize the machine by putting your foot on the ground. • Do not mow near drop-offs, ditches, or embankments. The machine could suddenly roll over if a wheel is over the edge or if the edge caves in. -
Page 13: Maintenance
SAFETY Maintenance 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. Safe Handling of Gasoline To avoid personal injury or property damage, use extreme care in handling gasoline. Gasoline is extremely flammable and the vapors are explosive. - Page 14 SAFETY • Keep all nuts and bolts tight to be sure the equipment is in safe working condition. • Never tamper with safety devices. Check their proper operation regularly. • Keep machine free of grass, leaves, or other debris buildup. Clean oil or fuel spillage and remove any fuel-soaked debris.
- Page 15 SAFETY regularly to be sure it works properly. The machine must not be driven with defective or unmounted protective plates, protective cowlings, safety switches, or other protective devices. • Do not change the settings of governors and avoid running the engine with overly high engine speeds.
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Page 16: Transport
SAFETY desired. • Reduce the risk of fire by removing grass, leaves, and other debris that may have accumulated on the machine. 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. -
Page 17: Customer Responsibilities
(if any). If a spark arrester is used, it should be maintained in effective working order by the operator. A spark arrester for the muffler is available through your authorized Husqvarna dealer. English... -
Page 18: Controls
CONTROLS Controls This operator’s manual describes the Husqvarna Zero Turn Rider. The rider is fitted with either a Briggs & Stratton or Kohler four-stroke overhead valve engine developing 20 - 24 horse power. Transmission from the engine is made via two belt- driven hydraulic pumps, which in turn drive a hydraulic motor for each drive wheel. -
Page 19: Parking Brake
CONTROLS 1. Parking Brake IMPORTANT INFORMATION The machine must stand absolutely still when applying the parking brake. Always set the parking brake before dismounting. Release the parking brake before moving the mower. The parking brake is found on the left of the machine. Pull the lever backward to activate the brake and forward to release it. -
Page 20: Fuel Shut Off Valve
Recommended air pressure is 15 psi. (1 bar) Tracking must be checked on a flat and level concrete or blacktop surface. If the unit still does not track straight contact your Husqvarna workshop for adjustments. 3. Fuel Shut Off Valve The fuel shut off valve is located under the fuel tank. -
Page 21: Refueling
CONTROLS 5. Refueling Read the safety instructions before refueling. The machine has one fuel tank, just behind the seat. The tank volume is 5.4 gallons (20.4 liters). Make sure the fuel cap is properly tightened and the cap gasket is not damaged. The engine will run on a minimum of 85-octane unleaded gasoline (no oil mix). -
Page 22: Bypass Linkage
CONTROLS 6. By pass linkage When pushing or pulling the mower, be sure to engage the IZT (Integrated Zeroturn Transaxle) bypass linkages. The IZT bypass linkages are located on the rear of the frame, below the rear engine guard. • Raise the deck into the highest cutting position. -
Page 23: Hour Meter
CONTROLS 8. Hour Meter The hour meter displays the total operating time. It will fl ash CHG OIL (Change Oil) at 50 hour intervals. The fl ash duration is one hour before and one hour after the interval. The CHG OIL icon will come on and shut off automatically. -
Page 24: Throttle Control
CONTROLS 11. Throttle Control The throttle control regulates the engine speed and thereby the rate of rotation of the blades, assuming the blade switch is pulled out, see Engaging the Mower Deck. In order to increase or decrease the engine speed, the control is moved forward or backward respectively. -
Page 25: Cutting Height Pedal
CONTROLS 13. Cutting height pedal The cutting deck height is obtained by pressing the foot pedal lift arm forward and releasing the transport latch. Then lower the deck to the preset height. To raise the deck push forward on the foot pedal lift arm until the transport latch locks. -
Page 26: Operation
OPERATION 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 attempting to move the mower under its own power. Additionally, we suggest when first operating the mower, use a reduced throttle speed and reduced ground speed by NOT moving control levers to the furthest forward or reverse positions during initial operation, or until operator becomes comfortable with controls. -
Page 27: Before Starting
OPERATION Before Starting • Read the sections Safety Instructions and Controls before starting the machine. • Perform the daily maintenance before starting (see Maintenance Schedule in the Maintenance section). • Check that there is sufficient fuel in the fuel tank. •... - Page 28 OPERATION 5. Move the steering controls outward to the locked (outer) neutral position. 8011-724 Steering controls in the outward, locked neutral position Move the throttle to the middle position. 8011-763 Set the throttle 7. If the engine is cold, the choke control should be pulled out to its extents.
- Page 29 OPERATION 8. Open the fuel shut off valve. CZ15 Open the fuel shut off valve 9. Press in and turn the ignition key to the start position. STOP 8050-780 Turn to the start position 10. When the engine starts, immediately release the ignition key back to the run position.
- Page 30 OPERATION 11. Press the choke control in gradually when the engine has started. 8011-756 Gradually press in the choke control 12. Set the desired engine speed with the throttle. Allow the engine to run at a moderate speed, “half throttle”, for 3-5 minutes before loading it too heavily.
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Page 31: Weak Battery
OPERATION To start an engine with a weak battery WARNING! Lead-acid batteries generate explosive gases. Keep sparks, flame and smoking materials away from batteries. Always wear eye protection when around batteries. If your battery is too weak to start the engine, it should be recharged. -
Page 32: Running
OPERATION Running 1. Release the parking brake by moving the lever downward. Your mower is equipped with an operator presence system. When the engine is running, any attempt by the operator to leave the seat without first setting the parking brake will shut off the engine. -
Page 33: Operating On Hills
OPERATION a straight line forward or backward respectively. In order, for example, to turn right while 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. Turning on the spot can be achieved by moving one control backward (behind the neutral position) and carefully moving the... -
Page 34: Mowing Tips
OPERATION Mowing Tips WARNING! • Observe and flag rocks and other fixed objects to avoid collisions. Clear the lawn of stones and • Begin with a high cutting height and reduce other objects that can be thrown it until the desired mowing result is attained. out by the blades. -
Page 35: Stopping The Engine
OPERATION Stopping the Engine Allow the engine to idle a minute in order to attain normal operating temperature before stopping it, if it has been worked hard. Avoid idling the engine for longer periods, as there is a risk of the spark plugs fouling. -
Page 36: Moving By Hand
OPERATION Moving by Hand WARNING! No adjustments or maintenance to be carried out unless: ♦ ♦ ♦ ♦ ♦ the engine stopped ♦ ♦ ♦ ♦ ♦ the ignition key removed ♦ ♦ ♦ ♦ ♦ the parking brake activated When pushing or pulling the mower, be sure to engage the IZT (Integrated Zeroturn Transaxle) bypass linkages. -
Page 37: Maintenance
MAINTENANCE Maintenance Maintenance Schedule The following is a list of maintenance procedures that must be performed on the machine. For those points not described in this manual, visit an authorized service workshop. An annual service carried out by an authorized service workshop is recommended to maintain your machine in the best possible condition and to ensure safe operation. - Page 38 MAINTENANCE Daily Weekly Maintenance interval mainte- least in hours maintenance nance once each Maintenance Page Before After year Check/adjust throttle and choke cables Check the condition of belts, belt pulleys, etc. Change the engine oil Replace the engine oil filter Clean/replace the spark plugs Replace the fuel filter Replace the air filter (paper filter)
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Page 39: Battery
MAINTENANCE Battery Your mower is equipped with a maintenance free Always use protective glasses battery and does not need servicing. However, periodic when handling the battery. charging of the battery with an automotive type battery charger will extend its life. Keep battery and terminals clean. -
Page 40: Ignition System
MAINTENANCE Ignition System IMPORTANT INFORMATION The engine is equipped with an electronic ignition system. Only the spark plugs require maintenance. Fitting the wrong spark plug type can For recommended spark plugs, see Technical Data. damage the engine. 1. Remove the ignition cable boot and clean around Inadequately tightened spark plugs can the spark plug. -
Page 41: Checking The Engine's Cooling Air Intake
MAINTENANCE Checking the Engine’s Cooling Air Intake Check that the engine’s cooling air intake is free from leaves, grass, and dirt. If the cooling air intake is clogged, engine cooling deteriorates, which can lead to engine damage. The cooling air intakes rotates when the engine is running. -
Page 42: Replacing The Air Filter
MAINTENANCE Replacing the Air Filter - Briggs & IMPORTANT INFORMATION Stratton Engine Please see the manual of the engine Standard air filter manufacturer for any additional If the engine seems weak or runs unevenly, the air instructions, including safety instructions. filter may be clogged. - Page 43 MAINTENANCE Replacing Heavy Duty Air Filter If the engine seems weak or runs unevenly and the dust load indicator has turned red the air filter may be clogged. If run with a clogged air filter, disruption of operation can occur. Cleaning/replacing the air filter is carried out as follows: Only do so when the dust indicator is red.
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Page 44: Replacing The Fuel Filter
MAINTENANCE Replacing the Fuel Filter Replace the line-mounted fuel filter every 100 hours (once per season) or more regularly if it is clogged. Replace the filter as follows: 1. Move the hose clamps away from the filter. Use flat-nosed pliers. 2. -
Page 45: Checking The Parking Brake
Visually check that no damage is found on the lever, links, or switch belonging to the parking brake. Perform a standstill test and check that there is sufficient braking action. To adjust the parking brake, contact the Husqvarna service workshop. WARNING! Faulty adjustment result in... - Page 46 MAINTENANCE Deck belt installation NOTE: For ease in installing the deck belt, refer to the routing decal on the front edge of the deck. • Wrap the deck belt around the electric clutch that is located on the engine shaft. •...
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Page 47: Izt Belt
MAINTENANCE IZT belt To replace IZT (Integrated Zeroturn Transaxle) belt Park the mower on a level surface. Engage the park brake. IZT belt removal NOTE: Be careful not to damage the fan blades on the IZT as this can affect cooling or damage the IZT •... -
Page 48: Checking The Blades
MAINTENANCE Checking the Blades In order to attain the best mowing effect, it is important that the blades are well sharpened and not damaged. WARNING! Blades are sharp. Protect your hands with gloves and/or wrap blades with a heavy cloth when handling. - Page 49 • Install and tighten blade bolt securely. • 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. English...
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Page 50: Adjusting The Mower Deck
MAINTENANCE Adjusting the Mower Deck WARNING! Before performing any service or adjustment checklist: 1. Engage the parking brake. 2. Place the Blade switch in the disengaged position. 3. Turn ignition switch to “OFF” position and remove the key. 4. Make sure the blades and all moving parts have completely stopped. 5. - Page 51 MAINTENANCE To adjust anti-scalp rollers Anti-scalp rollers are properly adjusted when they are just slightly off of the ground when the deck is at the desired cutting height in the operating position. Anti- scalp rollers then keep the deck in the proper position to help prevent scalping in most terrain conditions.
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Page 52: Cleaning And Washing
MAINTENANCE Cleaning and Washing Regular cleaning and washing, especially under the mower deck, will increase the machine’s life-span. Make it a habit to clean the machine directly after use (after it is cooled), before the dirt sticks. Do not spray water on the top of the mower deck. Use compressed air to clean the top side of mower deck. -
Page 53: Parking Brake
MAINTENANCE Parking brake To adjust parking brake Jack up unit and support properly with jack stands. Allow clearance to work at rear transaxles. Before making any adjustments: Set park brake. Measure the distance between the rod swivel pin and the brake arm washer. With the brake engaged, there should be a gap of 1/8"... -
Page 54: Lubrication
LUBRICATION Lubrication Lubrication Schedule 8011-672-2 12/12 Every year Lubricate with oil can Lubricate with grease gun 1/52 Every Week Level check Oil change 1/365 Every day Filter change *Change transaxles (transmission) filters. General Remove the ignition key to prevent unintentional movements during lubrication. When lubricating with an oil can, it must be filled with engine oil. -
Page 55: Lubricating The Cables
LUBRICATION Lubricating the Cables If possible, grease both ends of the cables and move the controls to end stop positions when lubricating. Refit the rubber covers on the cables after lubrication. Cables with sheaths will bind if they are not lubricated regularly. If a cable binds, it can disrupt operation. - Page 56 LUBRICATION 4. Deck outer spindle Lubricate using a grease gun, one zerk, each side 2-3 strokes. Use only good quality bearing grease. 5. Engine Oil Changing the Engine Oil The engine oil should be changed for the first time after 5-8 hours of operation.
- Page 57 LUBRICATION Checking the Oil Level Check the oil level in the engine when the machine is standing level and the engine is stopped. Remove the dipstick, wipe it clean, and then replace it. The dipstick should be screwed into place. Take the dipstick out again and read the oil level.
- Page 58 LUBRICATION 6. Changing the Engine Oil Filter 1. Drain the engine oil in accordance with the work description under the heading Engine Oil/Change Engine Oil. 2. Remove the oil filter. If necessary, use a filter remover. 3. Wipe new, clean engine oil onto the seal for the new filter.
- Page 59 LUBRICATION 7. Drain old oil filters of all free flowing oil prior to disposal. Place used oil in appropriate containers and dispose of it in accordance with laws in your area. 8. Remove the top port plug (see illustration) from the left side and right side of the transaxles prior to filling with oil.
- Page 60 LUBRICATION Purging Procedures Due to the effects air has on efficiency in hydrostatic drive applications, it is critical that it is purged from the system. These purge procedures should be implemented any time a hydrostatic system has been opened to facilitate maintenance or any additional oil has been added to the system.
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Page 61: Trouble Shooting Guide
TROUBLE SHOOTING GUIDE Trouble Shooting Guide Problem Cause • The engine will not start. The blade switch is engaged. • The steering controls are not locked in the neutral position. • The driver is not sitting in the driver’s seat. •... - Page 62 TROUBLE SHOOTING GUIDE The engine seems weak. • Clogged air filter. • Defective spark plugs. • Carburetor incorrectly adjusted. • Air trapped in hydraulic system. The engine overheats. • Clogged air intake or cooling fins. • Engine overloaded. • Poor ventilation around engine. •...
- Page 63 TROUBLE SHOOTING GUIDE Uneven mowing results. • Different air pressure in the tires on the left and right sides. • Bent blades. • The suspending for the mower deck is uneven. • The chain fixture has come loose. • The blades are blunt. •...
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Page 64: Storage
Always use genuine Husqvarna spare parts. vapor can come in contact with open flames, sparks, or a pilot An annual checkup at an authorized service workshop... -
Page 65: Wiring Diagram
WIRING DIAGRAM NOTE: 1. SEAT UNOCCUPIED 2. BRAKE SWITCH IN OFF POSITION 3. MOTION CONTROL LEVERS OUT 4. PTO IN OFF POSITION KEY SWITCH POSITIONS SOLENOID POSITION 1 - OFF RED/BLK RED/BLK BRAKE SW. 20 AMP ENGINE POSITION 2 - RUN1 RIGHT MOTION PIGTAIL CONTROL LEVER... -
Page 66: Technical Data
TECHNICAL DATA Technical Data EZ4624 / 968999688 Engine Manufacturer Briggs & Stratton Type Power 24hp Lubrication Pressure with oil filter Oil capacity excl filter 1.6 qt Oil capacity incl filter 1.8 qt Engine oil, Synthetic SAE 5W30, 10W30 Engine oil, Mineral Class... - Page 67 TECHNICAL DATA EZ4624 / 968999688 Equipment Cutting width 46" Cutting height 1.5" - 4.5" Uncut circle Number of blades Blade length 23" Nose rollers Michigan Seat Standard Hinged armrests Hour meter Standard Blade engagement Electric clutch Deck construction 12 gauge stamped steel...
- Page 68 TECHNICAL DATA Technical Data EZ4824 / 968999697 EZ4220 / 968999693 Engine Manufacturer Kohler Kohler Type Courage Twin Courage Twin Power 20 hp 24 hp Lubrication Pressure with oil filter Pressure with oil filter Oil capacity excl filter 1.6 qt. 1.6 qt Oil capacity incl filter 18 qt.
- Page 69 TECHNICAL DATA EZ 4220 / 9689999693 EZ4824 / 968999697 Equipment Cutting width 42" 48" Cutting height 1.5" - 4.5" 1.5" - 4.5" Uncut circle Number of blades Blade length 14.625" 16.25" Nose rollers Michigan Seat Standard Standard Hinged armrests Hour meter Standard Standard Blade engagement...
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Page 70: Accessories
TECHNICAL DATA Accessories BioClip attachment (Mulch kit) Collection system Torque Specifications ·Engine crankshaft bolt 50 ft/lb (67 Nm) ·Deck pulley bolts 45 ft/lb (61 Nm) ·Lug nuts 75 ft/lb (100 Nm) ·Blade bolt 45-55 ft/lb (60-75 Nm) ·Standard ¼” fasteners 9 ft/lb (12 Nm) ·Standard 5/16"... -
Page 71: Conformity Certificates
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.). -
Page 72: Service Journal
SERVICE JOURNAL Service Journal Action Date, mtr reading, stamp, sign Delivery Service 1. Charge the battery. 2. Adjust the tire pressure of all wheels to 15 PSI (1 bar). 3. Mount the steering controls in the normal position. 4. Connect the contact box to the cable for the seat’s safety switch. -
Page 73: After The First 5-8 Hours
SERVICE JOURNAL After the First 5-8 Hours 1. Change engine oil. English... -
Page 74: 25-Hour Service
SERVICE JOURNAL Action Date, mtr reading, stamp, sign 25-Hour Service 1. Check the fuel pump’s air filter. 2. Sharpen/Replace mower blades if required. 3. Check the tire pressures. 4. Check battery with cables. 5. Lubricate according to lubrication chart. 6. Check/clean the engine’s cooling air intake. 7. -
Page 75: 50-Hour Service
SERVICE JOURNAL Action Date, mtr reading, stamp, sign 50-Hour Service 1. Perform the 25-hour service. 2. Clean/replace the air cleaner’s filter cartridge (paper filter) (shorter intervals for dusty operating conditions). Change engine oil. 4. Lubricate according to lubrication chart. 5. Check/adjust the parking brake. English... -
Page 76: 100-Hour Service
SERVICE JOURNAL Action Date, mtr reading, stamp, sign 100-Hour Service 1. Perform the 25-hour service. 2. Perform the 50-hour service. 3. Change the engine oil filter. 4. Clean/replace the spark plugs. 5. Replace the fuel filter. 6. Clean the cooling fins on the engine and transmission. Check V-belts. -
Page 77: 300-Hour Service
SERVICE JOURNAL Action Date, mtr reading, stamp, sign 300-Hour Service 1. Inspect the machine. Come to agreement with the customer as to which additional work is to be carried out. 2. Perform the 25-hour service. 3. Perform the 50-hour service. 4. -
Page 78: At Least Once Each Year
SERVICE JOURNAL Action Date, mtr reading, stamp, sign At Least Once Each Year 1. Clean the engine’s cooling air intake (25 hours). 2. Replace the air cleaner’s pre-filter (foam) (300 hours). 3. Replace the air filter’s paper cartridge. 4. Change the engine oil (50 hours). 5. - Page 79 SERVICE JOURNAL Action Date, mtr reading, stamp, sign...
- Page 80 Part No. 539 131361Rir (09/14/07)