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Husqvarna PT26 D Operator's Manual

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Enlarged version
Oper ator ' s manual
PT26 D
Please r ead the operator's manual carefully and make sure you
E E E E n n n n g g g g l l l l i i i i s s s s h h h h
understand the instructions before using the machine.

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Summary of Contents for Husqvarna PT26 D

  • Page 1 Oper ator ′ s manual PT26 D Please r ead the operator’s manual carefully and make sure you E E E E n n n n g g g g l l l l i i i i s s s s h h h h...

  • Page 2: Table Of Contents

    Contents Introduction ..........3 Checking radiatorgrilles ....... 38 Congratulations ..........3 Cleaning the radiator's heat exchanger ..38 Driving and Transport on Public Roads ..3 Adjusting the pump and generator drive belts 38 Towing ............3 Replacing the pump and generator drive belts 39 Use ...............

  • Page 4: Introduction

    Thank you for purchasing a Husqvarna PT 26D. Husqvarna PTs have been designed according to a unique concept with a front mounted cutting unit and Husqvarna's unique rear wheel steering. The machine is built to give maximum efficiency even in small and difficult areas. Collected controls and a hydrostatic transmission controlled by pedals also contribute to the machine’s performance.

  • Page 5: Proper Service

    Introduction Proper Service Husqvarna’s products are sold all over the world and only by specialised retail traders offering 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 dealer, see the certificate in the Service Journal.

  • Page 6: Symbols And Decals

    Symbols and Decals Chapter 2: Symbols and Decals These symbols are found on the machine and in the operator’s manual. Symbols for control units and warning lamps are displayed in chapter “Presentation”, see page 42 and following pages. Study them carefully so you understand their significance. Read the Warning Use hearing...

  • Page 7: Important Information

    Symbols and Decals WARNING: Xxxxxx x xxxx xxxxx xxxxx xxxxx Xxxxxxxxxxx xxx xxxxxx. Xxxx xxxxxxx xxx xx xxxx Used in this publication to notify the reader of a risk of serious personal injury , particularly if the reader should neglect to follow instructions given in the manual. IMPORTANT INFORMATION: Xxx xxx xxxx xxxxxxxxx xxx xxxxx xxx xxxx xx xxxxx xx xxxxx.

  • Page 8: Safety Instructions

    If you get into a situation where you feel unsure Read the operator’s manual before starting the machine about how to progress, stop and seek expert advice. Contact your Husqvarna retailer, service agent or an experienced user. Avoid all usage that you consider to be beyond your capability.
  • Page 9 Safety Instructions • Shut down the blades when not mowing. The blades must only be running when the cutting unit is lowered and active when used for mowing. • Be careful when rounding fixed objects, so that the blades do not hit them. Never run the machine over foreign objects.

  • Page 10: Driving On Slopes

    Safety Instructions • Never use the machine when barefoot. Always wear protective shoes or protective boots, preferably with steel toes. • Make sure that you have first aid equipment close at hand when using the machine. Driving on slopes Driving on slopes is one of the operations where the risk of the driver losing control of the machine or of it overturning is the greatest;...

  • Page 11: 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. Never assume that children will stay put where you last saw them. •...
  • Page 12 Safety Instructions WARNING: The engine, exhaust system, cooling system and hydraulic system components become extremely hot during operation. Risk of burn injuries if touched. Wear protective gloves • If leaks arise in the fuel system, the engine must not be started until the problem has been resolved. •...
  • Page 13 Safety Instructions flammable liquids are stored in an open container. Do not work on the starter motor circuit in the vicinity of spilt fuel. Disconnect the battery's power connection cable (usually the black negative cable) first and connect it last. Exercise care with tools so that short circuiting does not occur.

  • Page 14: Transport

    Safety Instructions • Reduce the risk of fire by removing grass, leaves and other debris that may have fastened in the machine. Allow the machine to cool before putting it in storage. • Do not turn over the engine by hand without preventing the engine from starting, which can be done in different ways: a.

  • Page 15: User Responsibility

    Safety Instructions hand in for destruction. Remember to follow local regulations. Generally you can deposit waste oil at workshops or petrol stations that handle waste oil. • Replaced oil and fuel filters are environmental hazardous waste, handle them as waste oil. •...

  • Page 16: Presentation

    Chapter 4: Presentation Congratulations on your choice of an exceptionally high quality product. This operator's manual describes Husqvarna PT 26D. It is fitted with a Perkins 3 cylinder diesel engine developing 26 horse power. PT 26D is equipped with hydraulic steering and attachment lift.

  • Page 17: Placement Of Controls

    Presentation Placement of controls Speed control for driving forwards page 17 Knob for seat suspension page 18 Speed control for reversing page 17 10. Steering wheel console page 17 11. Pedal for differential lock page 19 Parking brake page 17 Control panel page 16 12.

  • Page 18: Speed Control

    Presentation Steering wheel console 40. Warning lamp Battery charging page 24 47. Warning lamp High speed page 24 41. Warning lamp Differential lock page 24 48. Warning lamp Right-hand indicator page 24 42. Warning lamp Coolant temperature page 24 49. Lever for tilting the steering wheel console page 24 43.

  • Page 19: Control Panel

    Presentation 4. Control panel There are controls and switches on the control panel on the right-hand side of the driver that are used when operating the machine. The lower section of the panel is equipped with a cover over the machine’s fuses and relays.

  • Page 20: Steering Wheel And Steering Wheel Console

    Presentation 10. Steering wheel and steering wheel console The position of the steering wheel can be adjusted vertically. The mounting for the steering unit in the steering column can be adjusted vertically. Depress the lever (49) and fold the steering wheel console to one side to facilitate entering the driver’s seat.

  • Page 21: Controls On The Control Panel

    Presentation Do not smoke when filling the tank with fuel. Diesel is less flammable than petrol at normal temperatures, but becomes very flammable if heated to the flash point. This varies depending on the type of diesel but is normally higher than +50 °C (120 °F). Observe fuel hygiene.

  • Page 22: Switch For Operation Of Cutting Unit

    Presentation Other functions (option) When the lever is moved laterally, the oil pressure is operated to the 2nd hydraulic function, the terminals are under the foot plate hatch. 22. Switch for operation of cutting unit The cutting unit can only be started when the driver is sitting in the seat.

  • Page 23: Starter Switch

    Presentation 26. Starter switch Three positions: • All functions switched off. The engine is stopped. The parking light can be switched on (traffic kit option). • Normal operating position. • Start and Preheating Keep the switch in the glow plug mode, when glow plug heating is complete the starter is engaged.

  • Page 24: Weight Transfer

    Presentation 30. Weight transfer Weight transfer is activated using this switch, transfers a proportion of the unit’s weight to the machine. This causes greater ground pressure on the machine’s front wheels and lower ground pressure on the unit’s pivot wheels. It is recommended to use weight transfer when lawn mowing and sweeping.

  • Page 25: Chronometer

    Presentation Chronometer The chronometer shows how many hours the engine has been running. Any time when the engine is not running but the ignition is switched on is not registered. The last digit shows tenths of an hour (6 minutes). 40-51.

  • Page 26: Rops

    Presentation Rops The bow is foldable. Pull out the pins and fold the bow backwards. If the bow is used unfolded, safety belt must be used . If the bow is used folded, safety belt should NOT be used.

  • Page 27: Cooling System

    Presentation Cooling system IMPORTANT INFORMATION: Coolant must be a mixture of 50 % antifreeze fluid and 50 % soft water. Anticorrosion agent in the coolant will be diluted if a reduced mixture is used. A higher mixture can negatively influence the cooling capacity.

  • Page 28: Cutting Unit

    BS 6580:1992 or ASTMD 3306-89 or AS 2108-1977 (indicated on the packaging). The antifreeze agent must be intended for use with light alloy engines. Your Husqvarna supplier can provide the correct type of antifreeze agent. IMPORTANT INFORMATION: Glycol...

  • Page 29: Accessories

    The accessories are described in separate operator’s manuals. Contact your dealer if you require an accessory. Examples of original accessories available for Husqvarna PT 26D: • Traffic kit: Lighting with direction indicators, parking light and rotating warning lamp Service position •...

  • Page 30: Driving

    Driving Chapter 5: Driving Mowing Tips WARNING: Use ear protection. Clear the lawn of stones and other objects that can be thrown out by the blades. • Locate and mark plants, rocks and other fixed objects in order to avoid collisions. •...

  • Page 31: Before Starting

    Driving Before Starting IMPORTANT INFORMATION: The air intake grille behind the driver's seat must not be blocked by, for example, clothing, leaves, grass or dirt. Impaired cooling of the engine. Risk of major engine damage. IMPORTANT INFORMATION: Start gas or ether must not be used for this engine. •...

  • Page 32: Starting The Engine

    Driving Starting the engine 1. Apply the parking brake by moving the handle forward. The engine cannot be started if the parking brake is applied or if a driving pedal is pressed. Check that the switch for the cutting unit drive is depressed.
  • Page 33 Driving WARNING: Never run the engine indoors, in enclosed or badly ventilated areas. Engine exhaust fumes contain poisonous carbon monoxide and carcinogenic substances. Engine speed control in idling mode 5. Set the desired engine speed (even idle) using the throttle control.

  • Page 34: Driving The Machine

    Driving • Connect the other end of the BLACK lead to a good CHASSIS EARTH, away from the fuel tank and battery. Remove the leads in reverse order: • The BLACK cable is removed from the chassis and then the fully charged battery. •...

  • Page 35: Braking

    Driving 5. Activate weight transfer if desired using the switch (30) on the control panel. The weight transfer position must always be activated when driving up slopes and deactivated when driving down slopes. 6. Start the cutting unit as necessary using the switch for power take-off (22) on the control panel.

  • Page 36: Maintenance

    Maintenance Chapter 6: Maintenance It is good practice to always check for leaks and loose components after use. Also check the machine and listen for knocking sounds. During hard use and in extreme conditions, the service intervals should be reduced. Check the cooling system’s antifreeze before the Winter.
  • Page 37 Maintenance ● = Described in this manual ❍ = Not described in this manual. Maintenance Page Daily main- Weekly Maintenance interval hours tenance main- 1000 2000 3000 tenance befor after ● Check the condition of the battery, clean if necessary ●...

  • Page 38: Cleaning

    Maintenance 2. Maintenance and replacement are required more often in dusty conditions. 3. With daily use, the machine shall be lubricated twice weekly. 4. Performed by authorised service workshop. 5. After the first 25 hours. WARNING: No service operations may be performed on the engine or cutting unit unless: •...

  • Page 39: Removing The Machine's Covers

    Maintenance Removing the machine’s covers Engine cover 1. Open the engine covers on both sides. 2. Remove the screws holding the engine cover. 3. Lift off the engine cover. Assemble in the reverse order. Engine cover’s mounting screws Checking radiatorgrilles Clean the radiator grille behind the driver's seat: Fold the driver's seat up.

  • Page 40: Replacing The Pump And Generator Drive Belts

    Checking and adjusting the throttle control Do not adjust the stop screws on the regulator housing, the engine’s warranty may become invalid. If doubts arise, contact a Husqvarna service workshop. Checking the exhaust system Check regularly that the muffler is complete and secured correctly.

  • Page 41: Servicing The Air Filter

    Maintenance 4. Check that the pedal can be locked in the applied position with normal pedal force. 5. Adjust as necessary using the wires' adjuster screws (R and L). Servicing the air filter If the engine seems to lack power or does not run smoothly this may be because the air filter is clogged.

  • Page 42: Bleeding The Fuel System

    flow valve. The fuel filter should be replaced by a qualified technician, there is a risk of damaging the injection pump if carried out incorrectly. Contact your Husqvarna workshop. Used fuel filters areare environmentally hazardous waste. Checking the Tyre Pressures The tyre pressure must be 100 kPa / 1.0 bar / 14.5 PSI...

  • Page 43: Servicing The Battery

    Maintenance IMPORTANT INFORMATION: Different air pressure in the front tyres or pivot wheels will result in the blades mowing the grass at different heights. Servicing the battery The machine is equipped with a sealed “maintenance- free” battery. The battery has an inspection hole that displays different colours: •...

  • Page 44: Checking The Safety System

    Maintenance 10 A Red Control circuit (max. 10A). If FU3 blows the entire machine will be dead. The circuit fuses are located on the circuit board under FU10 a cover on the control panel’s right-hand side. If any of these fuses trip, only the relevant circuit has no power. 10 A Red Power take-off’s magnetic clutch 10 A Red...

  • Page 45: Replacing The Bulb In The Headlight

    Maintenance Replacing the bulb in the headlight Applies to the headlight lamp. For information about the bulb type, see “Technical data”. IMPORTANT INFORMATION: When the plastic covers are removed, the unit with warning lamps is released. Do not damage it. 1.

  • Page 46: Light Setting

    Maintenance IMPORTANT INFORMATION: Do not touch the bulb glass with your fingers. Finger prints evaporate and mark the reflector. 5. Fold the wire loop for headlight lamp to one side and replace the bulb. 6. Assemble in the reverse order. Light setting Place the machine at least 5 m from a wall.
  • Page 47 Maintenance IMPORTANT INFORMATION: Never leave the propeller shaft on the machine with one end detached. If the engine starts, damage might occur. 2. Remove the propeller shaft completely. Pull the ring to release the quick connector and to be able to pull the propeller shaft from the shaft journal.

  • Page 48: Setting The Cutting Height And Tilt Angle

    Maintenance 14. Continue to screw in the adjustment screw for tilt angle. 15. Install the shaft for the link joint and its pins on both sides. 16. Start the engine and raise the cutting unit to the transport position. 17. Stop the engine. Adjustment screw tilt angle 18.

  • Page 49: The Cutting Unit's Service Position

    Maintenance 4. Set the handle for cutting height setting. Release the handle by pressing in the button and turning it to the horizontal position, so that it does not catch on bushes etc. The height interval is between 25 - 127 mm (1”- 5”), 7 positions.

  • Page 50: Cutting Unit Model

    Maintenance 5. Remove the pins on both sides. 6. Tilt the cutting unit. 7. Secure the cutting unit with the pin in the service handle. Keep track of the hairpin spring. 8. The cutting unit in the service position. Releasing the Service Position Images, see “Placing in the service position”.

  • Page 51: Checking The Blades

    Maintenance Checking the Blades WARNING: Protect your hands with gloves when working with the blades. Risk of cutting. Sharpening blades It is important that the blades are undamaged and well-ground to give the best mowing result. IMPORTANT INFORMATION: Replacement or sharpening of the blades should be carried out by an authorised service representative.

  • Page 52: Adjusting The Power Take-Off Belts

    Maintenance 5. Undo the locking nut (3) and the lower screw (4) for the belt tensioner. Remove the belt tensioner. 6. Do not unscrew the centre bolt in the drive shaft. Remove the rear bearing bridge’s screws (5) and the spacer washer (6). 7.

  • Page 53: Removal Of Bioclip Plug

    Maintenance 4. Slacken off two screws and remove the three others for the gear housing. Turn the gear housing so that the belts can be moved under the pulley. 5. Check that the belt tensioning equipment is not jammed or binding and replace the spring. 6.

  • Page 54: Lubrication

    Lubrication Chapter 7: Lubrication Lubrication Schedule When in daily use, the weekly lubrication (40 h) schedule should be carried out twice a week. General The position numbers for the lubrication points refer to the lubrication instructions on the following pages. = Filter replacement Remove the ignition key to prevent unintentional = Oil Change...

  • Page 55: Accessories

    Lubrication Accessories Lubrication or other maintenance of optional equipment or accessories, see “Accessories” on page 55, is not described in this manual. This equipment too, naturally, requires maintenance. See the manuals for the respective accessories for instructions. Lubricating in Accordance with the Pivot wheel bearings Lubrication Schedule The numbers in the following headings refer to the...
  • Page 56 Lubrication 5. Lift cylinder 2 nipples, one at each end of the cylinder. Lubricate using a grease gun until grease is forced out. Lift cylinder 6. The power take-off shaft’s front support bearing Lubricate using a grease gun until grease is forced out. The power take-off shaft’s front support bearing 7.
  • Page 57 Lubrication Filling engine oil The oil filler opening is on the valve cover. Never fill above the “FULL” mark (upper notch on the dipstick). Fill the oil slowly. Reinstall the dipstick before starting the engine. Start and run the engine at idling speed for approx.
  • Page 58 Hydraulic oil ISO VG. Viscosity 46 cSt. Local regulations may affect the choice of hydraulic oil due to environmental reasons, consult your Husqvarna workshop at the relevant location. Inspection off the oil level Open the right-hand engine cover and check the level against the level marking.
  • Page 59 Avoid skin contact; wash with soap and water in case of spills. Hydraulic oil and filters should be changed by an authorised Husqvarna workshop. 8. Hydraulic oil filter, change Hydraulic oil filters should be changed by an authorised Husqvarna workshop.
  • Page 60 Lubrication 12. Parking brake cables See “Lubricating the cables” on page 53. Lubricate the upper ends of the cable. Remove the cable’s rubber casing (R and L) when lubricating. Lubricate the cable with an oil can, apply the parking brake a few times and lubricate again. Parking brake cables 13.
  • Page 61 Lubrication...

  • Page 62: Trouble Shooting Guide

    Trouble Shooting Guide Chapter 8: Trouble Shooting Guide Check the machine refer to this guide before contacting your service workshop. Problem Cause The engine will not start. • Fuel tank empty • Incorrect fuel type • Air in fuel system •...
  • Page 63 Trouble Shooting Guide Problem Cause The engine lacks power • Air in fuel system • Clogged air filter • Fuel filter blocked • Defective excess flow valve • Low feed pressure • Defective feed pump • Incorrect timing of injection pump •...
  • Page 64 Trouble Shooting Guide Problem Cause Uneven mowing results • Blades blunt • Cutting unit set incorrectly • Long or wet grass • Grass build-up under the cover • Different air pressure in the right and left tyres • Different air pressures in the tyres on the pivot wheels •...
  • Page 65 Trouble Shooting Guide...

  • Page 66: Storage

    5. Remove the battery. Clean, charge, and store in a cool place. Maintenance charging is recommended. An inappropriate charger will destroy the battery. Contact your Husqvarna dealer for suitable chargers. 6. Store the machine in a clean, dry place and cover it for extra protection.

  • Page 67: 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 authorised service workshop is a good way to ensure that your machine performs its best the following season.

  • Page 68: Electrical System

    Electrical system Chapter 10: Electrical system 1. Headlight 2. Indicator panel 3. Control panel 4. Circuit board 5. Circuit fuses 6. Starter 7. Generator 8. Sensor engine temperature (2) 9. Oil pressure sensor (concealed) 10. Fuses and main relay 11. Main fuse 12.

  • Page 69: Hydraulic System

    Hydraulic System Chapter 11: Hydraulic System Hydraulic System, Component Locations 1. Quick couplings, see diagram 6. Valve block transmission 10. Inlet strainer 2. Lift cylinder 7. Wheel motors 11. Hydraulic cooler 3. Control cylinder 8. Hydraulic pump Control and air system 12.
  • Page 70 Hydraulic System Keep the hydraulic system clean. Remember to: • Thoroughly clean before the top-up cap is opened or any connector loosened. • Use clean containers when topping up the oil. • Only use pure oil that has been stored in a sealed container.

  • Page 71: Fuel System

    Fuel system Chapter 12: Fuel system Fuel system with in-line pump has excellent operational reliability as long as the fuel is kept clean. If contaminated fuel is filled or enters the system in the incorrect manner, the risk of malfunction or wear/ damage to the injection pump increases.

  • Page 72: Technical Data

    Technical Data Technical Data Data PT 26D Dimensions Excluding cutting unit Length, base machine 2070 mm / 6.79 ft Width, base machine 1170 mm / 3.83 ft Height 1300 mm / 4.26 ft Operating weight, base machine 600 kg / 1322 lb Wheelbase 1180 mm / 3.87 ft Tyre dimensions...
  • Page 73 Technical Data Data PT 26D Hydraulic System Max. working pressure 210 bar/3050 PSI Power steering circuit max. working pressure 120 bar/1740 PSI Transmission Hydrostatic Manufacturer and type Pump Danfoss LPV25 25 cc variable annular piston Front Sauer-Danfoss OEMV 160 cc Rear Sauer-Danfoss OEMV 125 cc ISO VG 46 cSt Oil volume, total including hydraulic system...
  • Page 74 Technical Data Data PT 26D Noise emissions with unit C155 103 dB(A) Measured noise level 104 dB(A) Guaranteed noise level Sound pressure level at the operators ear , dB(A) Noise emissions with unit C132 102 dB(A) Measured noise level 102 dB(A) Guaranteed noise leve Sound pressure level at the operators ear , dB(A)
  • Page 75 Technical Data...

  • Page 76: Design Standards

    Husqvarna AB, SE-561 82 Huskvarna, Sweden, tel: +46-36-146500, declare under sole responsibility that the Husqvarna PT 26D, from 2010’s serial numbers and onwards (the year is clearly stated in plain text on the rating plate with subsequent serial number), conforms with the requirements of the COUNCIL’S DIRECTIVE: of May 17, 2006 <Helv>"relating to machinery<Helv>"...
  • Page 77 Design standards...
  • Page 80 Original instructions 1153893-26 ´®z+Uy@¶6u¨ ´®z+Uy@¶6u¨ 2010-08-16...

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