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Husqvarna 968999250 Operator's Manual

Husqvarna lawn mower operator's manual.
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Models:
Operators Manual
968999250 / Z4818BIA
Please read these instructions carefully and make
sure you understand them before using the machine.
MANUAL NO. 539109797 REV. IR (09/18/04)

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   Summary of Contents for Husqvarna 968999250

  • Page 1

    Models: Operators Manual 968999250 / Z4818BIA Please read these instructions carefully and make sure you understand them before using the machine. MANUAL NO. 539109797 REV. IR (09/18/04)

  • Page 2

    GOOD SERVICE Husqvarna 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 3: Table Of Contents

    SYMBOLS & DECALS ... 4 SAFETY INSTRUCTIONS ... 5 General use and saftey rules ... 5 Driving on slopes ... 7 Children safety... 8 Service safety ... 8 Transportation ... 10 SPECIFICATIONS ... 11 ASSEMBLY ... 12 Tools Required ... 12 Unpacking ...

  • Page 4: Symbols & Decals

    SYMBOLS AND DECALS Reverse Neutral Fast Mower Mower deck deck disengaged engaged Parking brake Do not stand here Battery acid is corrosive, explosive, and flammable. Do not touch rotating parts. Shut off engine Keep a & remove key safe before perform- distance Read ing any...

  • Page 5: 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 6

    SAFETY INSTRUCTIONS • Be careful when rounding 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. Keep the machine a safe distance from holes or other irregularities in the ground.

  • Page 7: 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.

  • Page 8

    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 9: During Operation

    SAFETY INSTRUCTIONS • Allow the engine to cool before refueling. Do not smoke. Do not fill fuel in the vicinity of sparks or open flames. • If leaks arise in the fuel system, the engine must not be started until the problem has been resolved.

  • Page 10

    SAFETY INSTRUCTIONS • Never use the machine indoors or in spaces lacking proper ventilation. The exhaust fumes contain carbon monoxide, an odorless, poisonous, and lethal gas. • Stop and inspect the equipment if you run over or into anything. If necessary, make repairs before starting.

  • Page 11: Specifications

    GASOLINE CAPACITY AND TYPE OIL TYPE (SPI-SF-SJ): SPARK PLUG: GROUND SPEED (MPH): TIRE PRESSURE: CHARGING SYSTEM: BATTERY: BLADE BOLT TORQUE: CUSTOMER RESPONSIBILITIES • Read and observe the safety rules. • Follow a regular schedule in maintaining, caring for and using your mower. •...

  • Page 12: Assembly, Tools Required

    Your new mower has been assembled at the factory with the exception of those parts left un- assembled for shipping purposes. To ensure safe and proper operation of your mower, all parts and hardware you assemble must be tightened securely. Use the correct tools as necessary to insure proper tightness.

  • Page 13

    BEFORE REMOVING THE MOWER FROM THE SKID ATTACH SEAT (See Fig. 1) The seat position should be adjusted forward or backward so that the operator can comfortably reach the deck lift pedal and safely operate the mower. See "Service and Adjustment" Section of this manual.

  • Page 14

    TO ROLL THE MOWER OFF OF THE SKID (See Operation section for location and function of controls • Move to the rear of the mower, and place the IZT (Integraded Zeroturn Transaxle) bypass linkages into the bypass position to disengage the IZT’s (See “TO TRANSPORT”...

  • Page 15

    • Slowly move the control levers forward and slowly drive the mower off of the skid. • Return the control levers back to the neutral position. • Apply the park brake. • Turn the ignition key to the “OFF” position. CHECK THE TIRE PRESSURE Correct tire pressure is important for best cutting performance.

  • Page 16

    CONTROLS 1. PTO SWITCH – Used to engage or disengage the deck blades. 2. FOOT PEDAL – Used to raise, lower and select various cutting heights of the deck. 3. CONTROL LEVERS – the mower in both forward and reverse directions and turns the mower.

  • Page 17: How To Use Your Mower

    HOW TO USE YOUR MOWER TO SET PARKING BRAKE (See Fig. 3) 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 park brake will shut off the engine.

  • Page 18

    TO USE THROTTLE CONTROL (See Fig. 3) Always operate engine at full throttle. The Throttle control is equipped with a choke detent. Pressing the throttle control all of the way forward will choke the engine. For full throttle, press throttle control forward until you feel resistance.

  • Page 19

    NOTE: To begin motion the operator must be in the seat and the parking brake disengaged before the motion control levers can be moved from the neutral slots or the engine will kill. Fig. 4 and 4A. By moving the levers an equal amount forward or back the machine will move in a straight line in that direction.

  • Page 20

    TO ADJUST THE DECK CUTTING HEIGHT (See Fig. 5) 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 21

    TO ADJUST ANTI-SCALP ROLLERS (See Figure 6) 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 22

    TO OPERATE MOWER 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 park brake will shut off the engine. • Select desired height of cut. •...

  • Page 23

    TO TRANSPORT (See Fig. 7) 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. CAUTION not tow this vehicle, it may cause dam- age to the drive system.

  • Page 24: Before Starting The Engine

    BEFORE STARTING THE ENGINE CHECK ENGINE OIL LEVEL • The engine in your mower has been shipped from the factory, already filled with 10W-30 motor oil. • Check engine oil with the mower on level ground. • Refer to you Engine Owners Manual for correct oil level.

  • Page 25

    TO START ENGINE (See Fig. 3) When starting the engine for the first time or if the engine has run out of fuel, it will take extra cranking time to move fuel from the tank to the engine. • Be sure IZT (Integraded Zeroturn Transaxle) bypass linkages are in the drive position.

  • Page 26: Mowing Tips

    COLD WEATHER STARTING (50° F and below) • When the engine starts, slowly pull the throttle control back until the engine begins to run smoothly. Continue to pull back on the throttle control in small steps allowing the engine to accept small changes in speed and load, until the throttle control is completely in the fast position.

  • Page 27: Check Tire Pressure, Operation

    CUSTOMER RESPONSIBILITIES Check Brake Operation Check Tire Pressure Check Operator Presence and Interlock Systems Check for Loose Fasteners Sharpen/Replace mower Blades Lubrication Chart Check Battery Level Clean Battery and Terminals Check V-Belts Check Engine Oil Level Change Engine Oil (with oil filter) Change Engine Oil (without oil filter) Clean Air Filter Clean Air Screen...

  • Page 28: General Recommendations

    CUSTOMER RESPONSIBILITIES GENERAL RECOMMENDATIONS The warranty on this mower does not cover items that have been subjected to operator abuse or negligence. To receive full value from the warranty, operator must maintain mower as instructed in this manual. Some adjustments will need to be made periodi- cally to properly maintain your mower.

  • Page 29: Lubrication Chart

    CUSTOMER RESPONSIBILITIES IMPORTANT: DO NOT OIL OR GREASE THE PIVOT POINTS WHICH HAVE SPECIAL NYLON BEARINGS. VISCOUS LUBRICANTS WILL ATTRACT DUST AND DIRT THAT WILL SHORTEN THE LIFE OF THE SELF- LUBRICATING BEARINGS. IF YOU FEEL THEY MUST BE LUBRICATED, USE ONLY A DRY, POWDERED GRAPHITE TYPE LUBRICANT SPARINGLY .

  • Page 30: Controls, Customer Responsibilities, Tires, Operator Presence System

    CUSTOMER RESPONSIBILITIES TIRES • Maintain proper air pressure in all tires (See "SPECIFICATIONS" section of this manual). • Keep tires free of gasoline, oil, or insect control chemicals which can harm rubber. • Avoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage.

  • Page 31: Blade Care

    CUSTOMER RESPONSIBILITIES BLADE CARE For best results, mower blades must be kept sharp. Replace bent or damage blades. BLADE REMOVAL (See Fig. 8) NOTE: Protect your hands with gloves and/or wrap blade with heavy cloth. • Remove blade bolt by turning counterclockwise.

  • Page 32

    CUSTOMER RESPONSIBILITIES TO SHARPEN BLADE (See Fig. 9) WARNING When it is necessary to raise the mower for any repair or service, use jackstands to provide adequate sup- port. DO NOT rely on hydraulic or me- chanical jacks Care should be taken to keep the blade bal- anced.

  • Page 33: V-belts

    CUSTOMER RESPONSIBILITIES 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 34: Engine

    CUSTOMER RESPONSIBILITIES ENGINE LUBRICATION Refer to you Engine Owners Manual TO CHANGE ENGINE OIL (See Fig. 10). • Be sure the mower is on a level surface. • Oil will drain more freely when warm. • Place a suitable container under the right rear corner of the rear of the mower.

  • Page 35

    CUSTOMER RESPONSIBILITIES CLEAN AIR SCREEN Air screen must be kept free of dirt and chaff to prevent engine damage from overheating. Refer to your engine manual for the proper cleaning procedure. CLEAN AIR INTAKE/COOLING AREAS To insure proper cooling, make sure the grass screen, cooling fins, and other external surfaces of the engine are kept clean at all times.

  • Page 36

    CUSTOMER RESPONSIBILITIES IN-LINE FUEL FILTER (See Figs. 11 and 12) The fuel filter should be replaced once each season. If the fuel filter becomes clogged, obstructing fuel flow to carburetor, replacement is required. • First turn off the fuel valve that is located under the fuel tank of you mower.

  • Page 37: Service And Adjustment

    SERVICE AND ADJUSTMENT WARNING BEFORE PERFORMING ANY SERVICE OR ADJUSTMENTS: • Set park brake to engaged position. • Place PTO switch in the disengaged position (pressed down). • Turn ignition key "OFF" and remove the key. • Make sure the blades and all moving parts have completely stopped.

  • Page 38

    SERVICE AND ADJUSTMENT FRONT-TO-BACK ADJUSTMENT (See Fig. 15). IMPORTANT: 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 39: To Replace Deck Belt

    SERVICE AND ADJUSTMENT TO REPLACE DECK BELT DECK BELT REMOVAL (See Fig. 16 and 17) • Park on a level surface. Apply park brake. • Lower the deck into the lowest cutting position • Disengage the tension relief lever from the lock bracket.

  • Page 40

    SERVICE AND ADJUSTMENT TO REPLACE IZT (Integraded Zeroturn Transaxle) BELT (See Fig. 17) 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’s as this can affect cooling or damage the IZT’s •...

  • Page 41: To Adjust Control Levers

    SERVICE AND ADJUSTMENT TO ADJUST CONTROL LEVERS (See Fig. 19) Sitting on the seat, in the operators position, press both control levers forward. If both control levers line up with each other, then no adjustment is needed. If they do not line up, follow instructions below.

  • Page 42: Weak Battery

    SERVICE AND ADJUSTMENT 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 43

    SERVICE AND ADJUSTMENT REPLACING BATTERY (See Fig. 20) WARNING not short battery terminals by allowing a wrench or any other object to contact both terminals at the same time. Before connecting battery, remove metal brace- lets, wristwatch bands, rings, etc. Positive terminal must be connected first to prevent sparking from accidental grounding.

  • Page 44: To Adjust Park Brake, Tracking Adjustment

    SERVICE AND ADJUSTMENT TO ADJUST PARK BRAKE Before making any adjustments: 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. • With the park brake off the sping should measure 2 3/4”...

  • Page 45

    Immediately prepare your mower for storage at the end of the season or if the mower will not be used for 30 days or more. WARNING Never store the mower with gasoline in the tank inside a building where fumes may reach an open flame or spark.

  • Page 46

    ENGINE FUEL SYSTEM IT IS IMPORTANT TO PREVENT GUM DEPOS- ITS FROM FORMING IN ESSENTIAL FUEL SYSTEM PARTS SUCH AS CARBURETOR, FUEL FILTER, FUEL HOSE, OR TANK DURING STORAGE. ALSO, EXPERIENCE INDICATES THAT ALCOHOL BLENDED FUELS (CALLED GASOHOL OR USING ETHANOL OR METHA- NOL) CAN ATTRACT MOISTURE WHICH LEADS TO SEPARATION AND FORMATION OF ACIDS DURING STORAGE.

  • Page 47

    CYLINDER(S) • Remove spark plug(s). • Pour one ounce of oil through spark plug hole(s) into cylinder(s). • Install plugs. • Turn ignition key to "START" position for a few seconds to distribute oil. • Replace with new spark plug(s). OTHER •...

  • Page 48: Troubleshooting Points

    TROUBLESHOOTING POINTS PROBLEM Will not start 1. Out of fuel. 2. Engine not "CHOKED" properly. 3. Engine flooded. 4. Bad spark plug. 5. Dirty air filter. 6. Dirty fuel filter. 7. Water in fuel. 8. Loose or damaged wiring. 9. Carburetor out of adjustment. 10.

  • Page 49

    TROUBLESHOOTING POINTS PROBLEM Engine continues to 1. Faulty operator-safety presence control system. run when operator leaves seat with attachment Poor cut - uneven 1. Worn, bent or loose blade. 2. Mower deck not level. 3. Buildup of grass, leaves, and trash under mower. 4.

  • Page 50: Wiring Schematic

    WIRING SCHEMATIC...

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Z4818bia

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