Husqvarna Z4818BIA/968999250 Operator's Manual
Husqvarna Z4818BIA/968999250 Operator's Manual

Husqvarna Z4818BIA/968999250 Operator's Manual

Rider
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Operator´s manual
Z4818BIA/968999250
Please read the operator's manual carefully and make sure you
English
understand the instructions before using the machine.

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Summary of Contents for Husqvarna Z4818BIA/968999250

  • Page 1 Operator´s manual Z4818BIA/968999250 Please read the operator’s manual carefully and make sure you English understand the instructions before using the machine.
  • Page 3: Table Of Contents

    OPERATOR’S MANUAL Contents Contents...1 Introduction ...3 Congratulations...3 General ...3 Driving and Transport on Public Roads ...3 Towing ...3 Operating ...3 Good Service ...4 Manufacturing Number ...4 Symbols and Decals ...5 Safety Instructions...7 General Use...7 Driving on Slopes...9 Children...10 Maintenance ...11 Transport...13 Customer responsibilities...14 Controls ...15...
  • 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.
  • Page 5: Introduction

    Introduction Congratulations Thank you for purchasing a Husqvarna ride-on mower. This machine is built for the greatest efficiency and rapid mowing primarily of large areas. Controls in one place and a hydrostatic transmission regulated by steering controls also contribute to the machine’s performance.
  • Page 6: Good Service

    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, see the certificate in the Service Journal in this operator’s manual.
  • Page 7: Symbols And Decals

    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! Xxxxxxx xxxx xxxxxxxx xxx x Xxxxx xxxxxx xx. xx xxxxxxxx xxxxx xxx xx. Used in this publication to notify the reader of a risk of personal injury, particularly if the reader should neglect to follow instructions given in the manual.
  • Page 8 SYMBOLS AND DECALS Shut off engine Read & remove key Operator´s before Manual. performing any maintenance or repair work. Whole Severing body of fingers exposure & toes. to thrown objects. Moving sharp blades under cover English- Keep a safe Use on distance from slopes no the machine.
  • Page 9: Safety Instructions

    SAFETY INSTRUCTIONS 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. General Use • Read all instructions in this operator’s manual and on the machine before starting it.
  • Page 10 SAFETY INSTRUCTIONS • Shut down the blades when not mowing. • Be careful when mowing around fixed objects, so that the blades do not hit them. Never drive over foreign objects. • Only use the machine in daylight or in other well-lit conditions.
  • Page 11: Driving On Slopes

    SAFETY INSTRUCTIONS Driving on Slopes Driving on slopes is one of the operations where the risk is greatest that the driver will lose control or the machine will tip over, which can result in serious injury or death. All slopes require extra caution. If you cannot reverse up a slope or if you feel unsure, do not mow the slope.
  • Page 12: Children

    SAFETY INSTRUCTIONS Children • Serious accidents may occur if you fail to be on guard for children in the vicinity of the machine. Children are often attracted to the machine and mowing work. Never assume that children will stay put where you last saw them.
  • Page 13: Maintenance

    SAFETY INSTRUCTIONS 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. • Stop the engine. Prevent the engine from starting by removing the spark plug cables from the spark plugs or by removing the ignition key before making any adjustments or performing...
  • Page 14 SAFETY INSTRUCTIONS • Acid in the eyes can cause blindness, contact a doctor immediately. • Be careful when servicing the battery. Explosive gases form in the battery. Never perform maintenance on the battery when smoking or near open flames or sparks. The battery can explode and cause serious injury/damage.
  • Page 15: Transport

    SAFETY INSTRUCTIONS • Stop and inspect the equipment if you run over or into anything. If necessary, make repairs before starting. • Never make adjustments with the engine running. • The machine is tested and approved only with the equipment originally provided or recommended by the manufacturer.
  • Page 16: 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 17: Controls

    Controls This operator’s manual describes the Husqvarna Zero Turn Rider. The rider is fitted with a Briggs and Stratton four-stroke V-Twin engine developing 18 horse power. Transmission from the engine is made via two belt-driven hydraulic gears, one for each drive wheel.
  • Page 18: Tension Relief Lever

    1. Tension Relief Lever Used to release the belt tension on the deck belt for ease in removing or replacing the belt. IMPORTANT INFORMATION The machine must be absolutely stand still when applying the parking brake. 2. Parking Brake The parking brake is found on the left of the machine.
  • Page 19: Motion Control Levers

    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. CONTROLS Steering controls WARNING! The machine can turn very...
  • Page 20: Fuel Shut Off Valve

    CONTROLS 4. Fuel Shut Off Valve The fuel shut off valve is located under the fuel tank. The valve has two positions; ON and OFF. 8011-712 Fuel shut off valve in OFF position 5. Seat adjustment knobs The seat can be adjusted lengthways. When making adjustments, loosen the four knobs under the seat pan, after which the seat can be moved backward or forward.
  • Page 21: Refueling

    6. Refueling The machine has one fuel tank, just behind the seat. The tank volume is 5.4 gallons (20.4 liters). The engine will run on a minimum of 85- octane unleaded gasoline (no oil mix). Environmentally adapted alkylate gasoline can be used beneficially. See also Technical Data concerning ethanol fuel.
  • Page 22: By Pass Linkage

    7. By pass linkage When pushing or pulling the mower, be sure to engage the IZT (Integraded 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

    9. Hour Meter The hour meter displays the total operating time. It will flash CHG 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.
  • Page 24: Throttle Control

    CONTROLS 12. 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

    14. Cutting height pedal The deck cutting height is obtained by pressing the foot pedal forward to lift the deck. To lower the deck, you apply pressure to the top side of the foot pedal and allow it to pivot while allowing the lift arm to rotate to the rear of the unit.
  • Page 26: Operation

    Operation Read “Safety Instructions” on page 7 and following pages, if you are unfamiliar with the machine. Training Zero turn mowers are far more manueverable than typical riding mowers due to their unique steering capabilities. We recommend that this section be reviewed in its entirety prior to attempting to move the mower under its own power.
  • Page 27: Before Starting

    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. • Adjust the seat to the desired position.
  • Page 28 Disengage the mower blades by depressing the blade switch. Move the steering controls outward to the locked (outer) neutral position. Move the throttle to the middle position. English- OPERATION Depress the control for disengaging the mower deck Steering controls in the outward, locked neutral position Set the throttle 8011-668 8011-724...
  • Page 29 If the engine is cold, the choke control should be pulled out to its extents. Open the fuel shut off valve. Press in and turn the ignition key to the start position. OPERATION Set the choke control Open the fuel shut off valve Turn to the start position 8011-756 C215...
  • Page 30 10. When the engine starts, immediately release the ignition key back to the run position. IMPORTANT INFORMATION Do not run the starter for more than 5 seconds each time. If the engine does not start, wait about 10 seconds before re- trying.
  • Page 31: To Start An Engine With A Weak Battery

    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

    Running Release the parking brake by moving the lever forward. 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. Move the steering controls to the neutral position (N).
  • Page 33: Operating On Hills

    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 other steering control forward from its...
  • Page 34: Mowing Tips

    Mowing Tips • Observe and flag rocks and other fixed objects to avoid collisions. • Begin with a high cutting height and reduce it until the desired mowing result is attained. The average lawn should be cut to 2 1/2" (64 mm) during the cool season and over 3"...
  • Page 35: Stopping The Engine

    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. Disengage the mower deck by depressing the blade switch.
  • Page 36: Moving By Hand

    Moving by Hand WARNING! Make no adjustments without: - the engine stopped, - the ignition key removed, - the parking brake activated. When pushing or pulling the mower, be sure to engage the IZT (Integraded Zeroturn Transaxle) bypass linkages. The IZT bypass linkages are located on the rear of the frame, below the rear engine guard.
  • Page 37: 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: Year

    Maintenance Check/adjust throttle and choke cables Check the condition of belts, belt pulleys, etc. Change the engine oil Replace the engine oil filter (every 200 hours) Clean/replace the spark plugs Replace the fuel filter Replace the air filter (paper filter) Check the caster wheels (every 200 hours) Clean the cooling fins Replace the air cleaner’s pre-filter...
  • Page 39: Battery

    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. •...
  • Page 40: Ignition System

    Connect BLACK grounding cable to negative (-) battery terminal with remaining hex bolt and hex nut. 10. Tighten securely. 11. Close terminal access doors. 12. Lower seat. Ignition System The engine is equipped with an electronic ignition system. Only the spark plugs require maintenance.
  • Page 41: Checking The Safety System

    Checking the 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: The mower deck is disengaged. The steering controls are in the outer, locked neutral position.
  • Page 42: Checking The Engine's Cooling Air Intake

    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. Checking and Adjusting the Throttle Cable Check that the engine responds to throttle increases and that a good engine speed is...
  • Page 43: Replacing The Air Filter

    Replacing the Air Filter Standard air filter If the engine seems weak or runs unevenly, the air filter may be clogged. If run with a dirty air filter, the spark plugs can obtain a coating that disrupts operation. For this reason, it is important to replace the air filter regularly (see the heading Maintenance Schedule for the proper service interval).
  • Page 44: Replacing The Fuel Filter

    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: Move the hose clamps away from the filter. Use flat-nosed pliers. Pull the filter loose from the hose ends. Push the new filter into the hose ends.
  • Page 45: Checking The Parking Brake

    Perform a stand-still test and check that there is sufficent braking action. To adjust the parking brake, contact the Husqvarna service workshop. WARNING! Faulty adjustment can cause an accident. Checking the V-belts Check every 100 hours of operation.
  • Page 46 • Carefully roll the belt over the top of the cutter housing pulleys. • Remove the belt from around the electric clutch on the engine shaft. • The belt can now be removed. Deck belt installation NOTE: For ease in installing the deck belt, refer to the routing decal on the front edge of the deck.
  • Page 47: Izt Belt

    IZT belt To replace IZT (Integraded 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

    Checking the Blades In order to attain the best mowing effect, it is important that the blades are well sharpened and not damaged. Always use protective gloves when handling the blades. Bent or cracked blades or blades with large nicks should be replaced. Check the blade mounts.
  • 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. MAINTENANCE 1. Blade 2.
  • Page 50: Adjusting The Mower Deck

    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 To level deck Adjust the deck while the mower is on a level surface. Make sure the tires are inflated to the correct pressure. See “Technical Data” on page 64. If tires are under or over inflated, you can not properly adjust your deck. NOTE: It may be easier to adjust the front lift linkages by removing the floor pan before any adjustments are made.
  • Page 52 Front-to-back adjustment IMPORTANT INFORMATION Deck must be level side-to-side. If the following front-to-back adjustment is necessary, be sure to adjust both front or both rear linkages equally so the deck will stay level. To obtain the best cutting performance, the deck should be adjusted so the front tip of the blades are approximately 1/8"...
  • Page 53 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.
  • Page 54: Cleaning And Washing

    Cleaning and Washing Regular cleaning and washing, especially under the mower deck, will increase the machine’s lifespan. 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.
  • Page 55: Parking Brake

    Parking brake To adjust parking brake NOTE: Make sure the brake arm is engaged into brake sprocket on both sides. You can push the mower to make it engage into the sprocket. Before making any adjustments: • With the park brake off the sping should measure 2 3/4’’...
  • Page 56: Lubrication

    Lubrication Lubrication Schedule Lubrication schedule 12/12 Every year Lubricate with grease gun 1/52 Every Week 1/365 Every day 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, use a high grade molybdenum disulfide grease.
  • Page 57: Lubricating The Cables

    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. If a cable binds, remove the cable and hang it vertically.
  • Page 58 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. Thereafter, it should be changed every 50 hours.
  • Page 59 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 60 0.1 qt (0.1 liters) of oil. Transmission The transmission is maintenance free. There is no need for level checks or oil changes. If a leak occurs, replace the unit or contact your Husqvarna dealer. English- LUBRICATION Changing the oil filter 8011-734...
  • Page 61: Trouble Shooting Guide

    TROUBLE SHOOTING GUIDE Trouble Shooting Guide Problem The engine will not start. The starter does not turn the engine over. The engine runs rough. Cause • The blade switch is engaged. • The steering controls are not locked in the neutral position.
  • Page 62 TROUBLE SHOOTING GUIDE The engine seems weak. The engine overheats. Battery not charging. The machine moves slowly, unevenly, or not at all. Mower deck not engaging. English- • Water in the fuel. • Clogged air filter. • Clogged air filter. •...
  • Page 63 TROUBLE SHOOTING GUIDE Uneven mowing results. The machine vibrates. • 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. •...
  • Page 64: Storage

    Service When ordering spare parts, please specify the purchase year, model, type, and serial number. Always use genuine Husqvarna spare parts. An annual check-up at an authorized service workshop is a good way to ensure that your machine performs its best the following season.
  • Page 65: Wiring Diagram

    Wiring diagram WIRING DIAGRAMS 6. Seat unoccupied 11. Brake switch OFF pos. 8. Blade switch in OFF position 14-15. Motion control levers OUT 1. Battery 2. Accessory outlet 3. Key switch 4. To engine pigtail 5. Hour meter 6. Seat switch 7.
  • Page 66: Technical Data

    Technical Data Engine Manufacturer Briggs and Stratton Type OIIIE1 Power 18 hp / 13.3 kW Lubrication Pressure with oil filter Oil capacity excl filter 1.5 qt / 1.4 liter Oil capacity incl filter 1.6 qt / 1.6 liter Engine oil, Syntetic SAE 5W30, 10W30 Engine oil, Mineral SAE 30, (winter 10W30)
  • Page 67 Equipment Cutting width 48” / 122 cm Cutting height 1.5”- 4” / 3.8 - 10.2 cm Uncut circle Number of blades Blade length 16 1/2” / 419 mm Nose rollers Yes+4 anti-scalp rollers Sprung standard seat Standard Hinged armrests Hour meter Standard Blade engagement 125 ft/lb Warner Mag-stop...
  • Page 68: Accessories

    Accessories BioClip attachment (Mulch kit) Collection system Torque Specifications ·Engine crankshaft bolt ·Deck pulley bolts ·Hydraulic tube nuts ·Lug nuts ·Blade bolt ·Standard ¼” fasteners ·Standard 5/16” fasteners ·Standard 3/8” fasteners ·Standard 7/16” fasteners ·Standard ½” fasteners When this product is worn out and no longer used, it shall be returned to the reseller or other party for recycling.
  • Page 69: 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, (Californian emission rules etc.). Do not remove any of these labels. Certificates can also be supplied with the machine at delivery or written in the Engine manual.
  • Page 70: Service Journal

    Service Journal Action 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 71: After The First 5-8 Hours

    SERVICE JOURNAL After the First 5-8 Hours 1. Change engine oil. English-...
  • Page 72: 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 73: 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 74: 100-Hour Service

    Action 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. Check tighten caster wheel axle bolts (every 200 hours).
  • Page 75: 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 76: 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 77 SERVICE JOURNAL Action Date, mtr reading, stamp, sign English-...
  • Page 78 109797R01 08/10/05...

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