Husqvarna LZ 25 Operator's Manual
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Husqvarna LZ 25 Operator's Manual

Husqvarna LZ 25 Operator's Manual

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Operator´s manual
LZ 25
Please read these instructions carefully and make sure
English
you understand them before using the machine.

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Summary of Contents for Husqvarna LZ 25

  • Page 1 Operator´s manual LZ 25 Please read these instructions carefully and make sure English you understand them before using the machine.

  • Page 3: Table Of Contents

    OPERATOR’S MANUAL RIDER LZ SERIES Contents Maintenance ............35 Contents ..............1 Maintenance Schedule ........35 Introduction .............3 Battery..............37 Congratulations............3 Ignition System ..........38 General ..............3 Checking the Safety System ......39 Driving and Transport on Public Roads ....3 Checking the Engine's Cooling Air Intake ..41 Towing ..............3 Checking and Adjusting the Throttle Cable..41 Operating .............3...
  • 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

    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, 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 or death , particularly if the reader should neglect to follow instructions given in the manual.
  • Page 8 SYMBOLS AND DECALS Read Shut off engine Keep a safe Use on Operator´s & remove key distance from slopes no passengers Manual. before the machine. greater performing any than 10˚. maintenance or repair work. Whole body Severing of Do not open Careful Careful going exposure to...

  • 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. IMPORTANT: THIS CUTTING MACHINE IS CAPABLE OF AMPUTATING HANDS AND FEET AND THROWING OBJECTS.
  • Page 10 SAFETY INSTRUCTIONS • Disengage blades when not mowing. Shut off engine and wait for all parts to WARNING! come to a complete stop before cleaning Engine exhaust and certain the machine, removing the grass catcher, vehicle components contain or unclogging the discharge guard. or emit chemicals considered •...

  • Page 11: Personal Safety Equipment

    SAFETY INSTRUCTIONS 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.

  • Page 12: Children

    SAFETY INSTRUCTIONS • Use extra care while operating machine with grass catchers or other attachments; they can affect the stability of the machine. Do not use on steep slopes. • Do not try to stabilize the machine by putting your foot on the ground. •...

  • 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. 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 INSTRUCTIONS General Maintenance • Never operate machine in a closed area. • 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. •...
  • Page 15 SAFETY INSTRUCTIONS • 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. • Ensure that nuts and bolts, especially the fastening bolts for the blade attachments, are properly tightened, torqued and that the equipment is in good condition.

  • Page 16: Transport

    SAFETY INSTRUCTIONS • Never make adjustments with the engine running. • The machine is tested and approved only with the equipment originally provided or recommended by the manufacturer. Only use approved repair parts for the machine. • The blades are sharp and can cause cuts and gashes.

  • 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 a Kawasaki four-stroke V-Twin engine developing 25 horse power. Transmission from the engine is made via two belt-driven hydrostat transaxles, which in turn drive a hydraulic motor for each drive wheel.

  • Page 19: Motion Control Levers

    CONTROLS 1. Motion Control Levers The machine’s speed and direction are continuously variable using the two steering controls. The steering controls can be moved forward or backward about a neutral position. Furthermore, there is a neutral position, which is locked if the steering controls are moved outward.

  • Page 20: Hour Meter

    CONTROLS 2. 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 21: Blade Switch

    CONTROLS 5. Blade switch In order to engage the mower deck, pull the knob out; the mower blades are disengaged when the knob is depressed. 8011-510 Blade Switch 6. Ignition Switch The ignition key is placed on the driver’s panel and is used to start and stop the engine.

  • Page 22: Seat Locking Device

    CONTROLS 8. Seat Locking Device Under the rear part of the seat is a locking device that locks the seat into its folded position. The seat has a linked fixture at the front edge and can be folded forward when the locking device is pushed.

  • Page 23: Fuel Shut Off Valve

    CONTROLS 10. Fuel Shut Off Valve The fuel shut off valve is located at the right rear of the seat. The valve has three positions; right tank, left tank and center is the off position. 8011-506 Fuel shut off valve 11.

  • Page 24: Throttle Control

    CONTROLS 13. 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 downward or upward respectively.

  • Page 25: Pump Release Valves

    CONTROLS Cutting height pedal On some models there is a deck assist lift pedal to aid in the lifting of the deck. 8011-465 Cutting height pedal Pump release valves IMPORTANT INFORMATION Only rotate valve 1/4 - 1/2 turn to release system.

  • 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 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 startin"g (see Maintenance Schedule in the Maintenance" section). • Check that there is sufficient fuel in the fuel tanks. •...
  • Page 28 OPERATION Disengage the mower blades by depressing the blade switch. 8011-510 Depress the control for disengaging the mower deck Move the steering controls outward to the locked (outer) neutral position. 8011-526 Steering controls in the outward, locked neutral position Move the throttle to the middle position. 8011-509 Set the throttle English-...
  • Page 29 OPERATION If the engine is cold, the choke control should be pulled out to its extents. 8011-508 Set the choke control Open the fuel valve for the selected fuel tank. 8011-506 Open the fuel valve Press in and turn the ignition key to the start position.
  • Page 30 OPERATION 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

    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 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 park brake will shut off the engine. Move the steering controls to the neutral position (N).

  • Page 33: Operating On Hills

    OPERATION 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

    OPERATION Mowing Tips • Observe and flag rocks and other fixed WARNING! objects to avoid collisions. Clear the area of objects such • Begin with a high cutting height and as rocks, toys, wire, etc., reduce it until the desired mowing result which could be picked up and is attained.

  • 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. Disengage the mower deck by depressing the blade switch.

  • Page 36: Moving By Hand

    OPERATION Moving by Hand In order for the machine to be moved with the engine turned off, the pump release valves on both hydraulic pumps must be opened 1/4-1/2 turn. WARNING! No adjustments or maintenance to be carried out unless: 8011-507 - the engine stopped, pump release valve on the hydraulic pump...

  • 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- mainte- least in hours nance 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 ●...

  • Page 39: Battery

    MAINTENANCE Battery Always use protective glasses Your mower is equipped with a maintenance when handling the battery. free battery and does not need servicing. However, periodic charging of the battery with an automotive type battery charger will extend its life. •...

  • Page 40: Ignition System

    MAINTENANCE Connect BLACK grounding cable to negative (-) battery terminal with remaining hex bolt and hex nut. 10. Fit the terminal guard. 11. 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

    MAINTENANCE 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 MAINTENANCE Start motor Works Ignition system Does not work 8011-553 Safety system English-...

  • Page 43: 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. 8011-625 Check and clean the cooling air intake Checking and Adjusting the Throttle Cable Check that the engine responds to throttle...

  • Page 44: Cyclon Air Filter Maintenance

    MAINTENANCE Cyclon air filter maintenance If the engine seems weak or runs unevenly, the air filter may be clogged. If running with a dirty air filter, the spark plugs can become fouled. For this reason, it is important to replace the air filter regularly (see the heading Maintenance Schedule for the proper service interval).
  • Page 45 MAINTENANCE Filter replacement Remove the end cover. Remove the main filter (outer filter) by pulling it out by hand. Remove the inner filter by pulling it out by hand. Clean inside of the filter housing. Wipe dry only. Install the inner filter with the open end first.

  • Page 46: Replacing The Fuel Filter

    MAINTENANCE Replacing the Fuel Filter Replace the line-mounted fuel filter every 100 hours (once per season) or more often if it becomes 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 47: Checking Tire Pressures

    Perform a test drive and check that there is sufficent braking action. To adjust the parking brake, contact the Husqvarna service workshop. WARNING! 8011-511 Faulty adjustment can cause The parking brake in the disengaged position an accident.

  • Page 48: Checking The Blades

    MAINTENANCE Pump belt Check belt every 100 hours for excessive wear. To replace belt. Relieve tension on the deck belt and remove deck belt from clutch. See “Deck belt” in “Maintenance Section”. Loosen bolt on the clutch tie down and rotate out of the way.
  • Page 49 Tunnel Deck - Torque blade bolt to 90 ft/ lbs (122 Nm). Combi Deck - Torque blade bolt to 57-61 ft/lbs (77-82 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-...

  • 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.

  • Page 52: Cleaning And Washing

    MAINTENANCE 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 53: Lubrication

    LUBRICATION Lubrication Lubrication Schedule (3x)* (2x)** * Tunnel Decks Only ** Combi Decks Only 8011-765 Lubrication schedule 12/12 Every year Lubricate with grease gun Lubricate with oil can 1/52 Every week Oil change Level check 1/365 Every day Filter change General Remove the ignition key to prevent unintentional movements during lubrication.

  • Page 54: 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.
  • Page 55 LUBRICATION 3. Engine Oil Changing the Engine Oil The engine oil shall be changed for the first time after 8 hours of operation. Thereafter, it should be changed every 100 hours. WARNING! IMPORTANT INFORMATION The engine and the exhaust Used engine oil is a health hazard and system, become very hot must not be disposed of on the ground or during operation.
  • Page 56 LUBRICATION The oil level shall lie between the markings on the dipstick. If the level is approaching the ”ADD” mark, top up the oil to the ”FULL” mark on the dipstick. Never fill above the ”FULL” mark. The oil is filled through the hole for the dipstick.
  • Page 57 LUBRICATION 6. Front Wheel Bearings Lubricate with a grease gun, one zerk for each set of wheel bearings, until the grease is forced out. Use only good quality molybdenum disulphide grease. Grease from well-known brand names (petrochemical companies, etc.) usually maintains a good quality.
  • Page 58 LUBRICATION 9. Belt Adjuster, Mower Deck Remove the foot plate (two screws) and lubricate with a grease gun, one zerk, until grease is forced out. Use only good quality molybdenum disulphide grease. Grease from well-known brand names (petrochemical companies, etc.) usually maintains a good quality.
  • Page 59 LUBRICATION 12. Brake Arms Remove one rear wheel at a time (four lug nuts). Lubricate with a grease gun, one zerk for each brake arm, until the grease is forced out. Use only good quality molybdenum disulphide grease. Grease from well-known brand names (petrochemical companies, etc.) usually maintains a good quality.
  • Page 60 LUBRICATION 14. Changing the Oil Filter Drain the engine oil in accordance with the work description under the heading Engine Oil/Change Engine Oil. Remove the oil filter. If necessary, use a filter remover. Wipe new, clean engine oil onto the seal for the new filter.

  • 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 overheats. • Clogged air intake or cooling fins. • Engine overloaded. • Poor ventilation around engine. • Defective engine speed regulator. • Soot in the combustion chamber. • Too little or no oil in the engine. •...

  • Page 63: Storage

    When ordering spare parts, please specify the away from open flame. Never purchase year, model, type, and serial number. use gasoline for cleaning. Use Always use genuine Husqvarna spare parts. a degreaser and warm water instead. 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 64: Wiring Diagram

    WIRING DIAGRAMS Wiring diagram 6. Seat unoccupied 8. Blade switch in OFF position 11. Brake switch OFF pos. 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 65: Technical Data

    TECHNICAL DATA Engine LZ25C Manufacturer Kawasaki Type FH721V Power 25 hp / 18.4 kW* Lubrication Pressure with oil fi lter Oil capacity excl fi lter 1.6 qt / 1.5 liters Oil capacity incl fi lter 1.8 qt / 1.7 litres Engine oil SAE 10W30, 10W40 (See viscosity diagram)
  • Page 66 TECHNICAL DATA LZ25C Tunnel Deck Combi Deck Frame Cutting Height 1½" - 6" / 3.8 cm - 15.5 cm 1¼" - 5¾" / 3.2 cm - 14.6 cm Uncut Circle 0" / 0 cm 0" / 0 cm Blades 18" / 457 mm 21"...

  • Page 67: Accessories

    TECHNICAL DATA Accessories Tunnel Deck Front Baffl e Kit Mulch Kit Combi Deck Mulch Plug - Standard with all decks Torque Specifi cations • Engine crankshaft bolt 50 ft/lb (67 Nm) • Deck pulley bolts - Tunnel Decks 45 ft/lb (61Nm) •...

  • Page 68: Torque Specifications

    TECHNICAL DATA TORQUE SPECIFICATIONS – HEX HEAD CAP SCREWS The torque values shown should be used as a general guideline when specifi c torque values are not given. U.S. Standard Hardware Grade SAE Grade 5 SAE Grade 8 Flangelock Screw w/Flangelock Nut ft./lbs ft./lbs...

  • Page 69: Conformity Certificates

    See the Declaration of Conformity Certifi cate for additional information. Husqvarna AB, Beatrice NE USA declares under sole responsibility that the machine types stated on page 1 of this manual, from 2005's serial numbers and onwards (the year is clearly stated in plain text...

  • Page 70: Service Journal

    SERVICE JOURNAL Service Journal Action Date, mtr reading, stamp, sign Delivery Service 1. Charge the battery. 2. Mount the rear wheels. 3. Adjust the tire pressure of all wheels to 15 PSI (1 bar). 4. Mount the steering controls in the normal position. 5.

  • Page 71: After The First 8 Hours

    SERVICE JOURNAL Action Date, mtr reading, stamp, sign 20. Inform the customer about: Delivery service has been carried out. The need and advantages of following the service schedule. No remaining notes. The need and advantages of leaving the machine for service every 300 hours. Certified: The effects of service and maintaining a service journal on the machine’s resale value.

  • Page 72: 25-Hour Service

    SERVICE JOURNAL Action Date, mtr reading, stamp, sign 25-Hour Service Check the fuel pump’s air filter. Check the hydraulic system’s oil level. Check the tire pressures. Lubricate the belt adjuster, mower deck. Lubricate the belt adjuster, hydraulic pumps. Check/clean the engine’s cooling air intake. Clean cyclon air filter dust cap.

  • Page 73: 50-Hour Service

    SERVICE JOURNAL Action Date, mtr reading, stamp, sign 50-Hour Service Perform the 25-hour service. Lubricate the front wheel bearings. Lubricate the steering control shafts. Lubricate the mower deck struts. Lubricate the cutting height adjuster. Check/adjust the parking brake. English-...

  • Page 74: 100-Hour Service

    SERVICE JOURNAL Action Date, mtr reading, stamp, sign 100-Hour Service Perform the 25-hour service. Perform the 50-hour service. Change engine oil. Check whether the hydraulic oil needs changing (every 300 hours). Check whether the engine oil filter needs changing (every 200 hours). Clean/replace the spark plugs.

  • Page 75: 300-Hour Service

    SERVICE JOURNAL Action Date, mtr reading, stamp, sign 300-Hour Service Inspect the machine. Come to agreement with the customer as to which additional work is to be carried out. Perform the 25-hour service. Perform the 50-hour service. Perform the 100-hour service. Change the oil and filter in the hydraulic system.

  • Page 76: At Least Once Each Year

    SERVICE JOURNAL Action Date, mtr reading, stamp, sign At Least Once Each Year Clean the engine’s cooling air intake (25 hours). Replace the air cleaner’s pre-filter (Oil-foam) (300 hours). Replace the air filter’s main cartridge (200 hours). Change the engine oil (100 hours). Replace the engine oil filter (200 hours).
  • Page 77 SERVICE JOURNAL Action Date, mtr reading, stamp, sign English-...
  • Page 78 SERVICE JOURNAL Action Date, mtr reading, stamp, sign English-...
  • Page 79 SERVICE JOURNAL Action Date, mtr reading, stamp, sign English-...
  • Page 80 Original instructions 115 36 98-26 ´®z+Uer¶6o¨ 2010W22...

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