Husqvarna PT26 D manual

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 PT26 D Oper ator ′ s manual Please r ead the operator’ s manual carefull y and make sur e you understand the instructions bef ore using the machine.[...]

1 Contents Introduction ................................................ 3 Congratulations ............................................ 3 Driving and Transport on Public Roads ....... 3 Towing .......................................................... 3 Use ............................................................... 3 Proper Service ...........[...]

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3 Introduction Chapter 1: Introduction Congratulations Thank you f or purchasing a Husqvarna PT 26D . Husqvarna PTs hav e been designed according to a unique concept with a front mounted cutting unit and Husqvarna's unique rear wheel steering. The machine is b uilt to giv e maximum efficiency e ven in small and difficult areas. Collected con[...]

4 Introduction Proper Service Husqv ar na’ s products are sold all over the w orld and only by specialised retail traders off er ing complete ser vice. This ensures that you as a customer receiv e only the best suppor t and ser vice. Bef ore the product is deliv ered, the machine has, f or example , been inspected and adjusted by y our dealer , s[...]

5 Symbols and Decals Chapter 2: Symbols and Decals These symbols are f ound on the machine and in the operator’ s manual. Symbols f or control units and warning lamps are displa yed in chapter “Presentation”, see page 42 and follo wing pages. Study them carefully so you understand their significance . Starting instructions: Activate the park[...]

6 Symbols and Decals Used in this publication to notify the reader of a risk of serious personal injur y , par ticular ly if the reader should neglect to f ollow instructions given in the man ual. Used in this publication to notify the reader of a risk of material damage , par ticular ly if the reader should neglect to f ollow instructions given in[...]

7 Safety Instructions Chapter 3: Safety Instructions These instructions are for y our saf ety . Read them carefully . General Use • Read all instructions in this operator’ s manual and on the machine bef ore star ting it. Ensure you understand them and then obser ve them. • Lear n how to use the machine and its controls saf ely and lear n how[...]

8 Safety Instructions • Shut down the b lades when not mowing. The b lades m ust only be running when the cutting unit is low ered and active when used f or mowing. • Be careful when rounding fix ed objects, so that the blades do not hit them. Ne v er r un the machine ov er f oreign objects. • Ne ver driv e close to objects or other machines[...]

9 Safety Instructions • Ne ver use the machine when baref oot. Alwa ys w ear protectiv e shoes or protectiv e boots, pref erab ly with steel toes. • Make sure that y ou 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 dr iver losing control of the [...]

10 Safety Instructions Children • Serious accidents may occur if y ou f ail to be on guard f or children in the vicinity of the machine. Children are often attracted to the machine and mowing. Nev er assume that children will sta y put where you last sa w them. • K eep children awa y from the mowing area and under close super vision by another [...]

11 Safety Instructions • If leaks arise in the fuel system, the engine must not be star ted until the problem has been resolv ed. • Store the machine and fuel in such a wa y that there is no risk of leaking fuel or fuel vapour leading to damages. • Check the fuel le vel bef ore each use and leave space f or the fuel to e xpand, because the he[...]

12 Safety Instructions flammable liquids are stored in an open container . Do not w ork on the star ter motor circuit in the vicinity of spilt fuel. Disconnect the batter y's power connection cab le (usually the blac k negativ e cab le) first and connect it last. Ex ercise care with tools so that shor t circuiting does not occur . Do not sho[...]

13 Safety Instructions • Reduce the risk of fire by removing g r ass , lea v es and other debr is that may ha v e f astened in the machine. Allow the machine to cool bef ore putting it in storage . • Do not turn over the engine b y hand without pre venting the engine from star ting, which can be done in diff erent wa ys: a. Remov e the glow pl[...]

14 Safety Instructions hand in f or destruction. Remember to follow local regulations . Generally you can deposit w aste oil at workshops or petrol stations that handle waste oil. • Replaced oil and fuel filters are environmental hazardous waste , handle them as waste oil. • Do not spill fuel when refuelling. One litre of diesel fuel can, acco[...]

15 Presentation Chapter 4: Presentation Congratulations on y our choice of an exceptionally high quality product. This operator's manual describes Husqvarna PT 26D . It is fitted with a P er kins 3 cylinder diesel engine de veloping 26 horse po wer . PT 26D is equipped with h ydraulic steering and attachment lift. They are supplied with press[...]

16 Presentation 1. Speed control f or driving forwards page 17 2. Speed control f or rev ersing page 17 3. P arking brake page 17 4. Control panel page 16 5. Knob f or the backrest rak e page 18 6. Catch f or seat folding page 18 7. Knob f or the lumbar suppor t page 18 8. Le ver f or lateral seat adjustment page 18 9. Knob f or seat suspension pag[...]

17 Presentation 1-2. Speed control The speed of the machine is variab ly controlled using two pedals. P edal (1) is used to trav el f orwards and pedal (2) to re verse . 3. Parking brake Apply the parking brake b y moving the handle f orward. Release the parking brake b y moving the handle bac k. W ARNING: 40. W arning lamp Batter y charging page 2[...]

18 Presentation 4. Control panel There are controls and s witches on the control panel on the right-hand side of the dr iver that are used when operating the machine . The lower section of the panel is equipped with a cov er over the machine’ s fuses and rela ys. See “21-37. Controls on the control panel” on page 20. 5-9. Seat The seat has a [...]

19 Presentation 10. Steering wheel and steering wheel console The position of the steering wheel can be adjusted vertically . The mounting f or the steering unit in the steering column can be adjusted ver tically . Depress the le ver (49) and f old the steer ing wheel console to one side to f acilitate entering the dr iver’ s seat. The steer ing [...]

20 Presentation Do not smoke when filling the tank with fuel. Diesel is less flammab le than petrol at normal temperatures, b ut becomes ver y flammable if heated to the flash point. This varies depending on the type of diesel but is normally higher than +50 °C (120 °F). Obser ve fuel h ygiene. The diesel engine’ s fuel injection system is [...]

21 Presentation Other functions (option) When the le ver is mo v ed laterally , the oil pressure is operated to the 2nd h ydraulic function, the ter minals are under the f oot plate hatch. 22. Switch f or operation of cutting unit The cutting unit can only be star ted when the dr iver is sitting in the seat. • Pull out the s witch to engage cutti[...]

22 Presentation 26. Star ter switch Three positions: • OFF All functions s witched off . The engine is stopped. The parking light can be switched on (tr affic kit option). •O N Nor mal operating position. • Star t and Preheating K eep the switch in the glow plug mode , when glow plug heating is complete the star ter is engaged. During glow p[...]

23 Presentation 30. Weight transfer W eight tr ansf er is activated using this s witch, transfers a propor tion of the unit’ s weight to the machine . This causes greater ground pressure on the machine’ s front wheels and lower g round pressure on the unit’ s pivot wheels. It is recommended to use weight transf er when lawn mowing and s weepi[...]

24 Presentation 36 . Chronometer The chronometer shows ho w many hours the engine has been running. Any time when the engine is not running but the ignition is s witched on is not registered. The last digit shows tenths of an hour (6 minutes). 40-51. Warning lamps On the steering wheel console under the steer ing wheel there are warning lamps for b[...]

25 Presentation Rops The bow is f oldable. Pull out the pins and fold the bo w backw ards. If the bow is used unf olded, safety belt must be used . If the bow is used f olded, safety belt should NO T be used. x 2[...]

26 Presentation Cooling system The engine is water cooled. In the ev ent of a high engine coolant temperature being indicated, chec k the coolant le vel first. Also check that the r adiator grille behind the driver's seat is not clogged. See “Checking r adiatorgrilles” on page 79. The correct engine coolant le vel is important for the coo[...]

27 Presentation Only fill antifreeze and w ater ready mix ed in a 50/50 ratio . Check the le vel when the engine has been driven f or a f ew min utes after filling. There could ha v e been air in the system which has now been released. Antifreeze Only use a glycol based antifreeze that is appro ved b y the applicable norms BS 6580:1992 or ASTMD 3[...]

28 Presentation laterally to the side in relation to the machine . If necessar y , the cutting unit can be tur ned to the ser vice position to be able to clean the underneath of the cov er for e xample. Accessories The accessories are descr ibed in separate operator’ s manuals. Contact your dealer if y ou require an accessor y . Examples of origi[...]

29 Driving Chapter 5: Driving Mowing Tips • Locate and mark plants, rocks and other fix ed objects in order to av oid collisions. • Begin with a high cutting height and reduce it until the desired mowing result is attained. • The mowing result will be best with a high engine speed (the blades rotate r apidly) and low speed (the machine mov e[...]

30 Driving Before Starting • Read section “Saf ety Instructions” on page 11 and “Presentation” on page 29. • Carr y out daily maintenance according to “Maintenance Schedule” on page 71. • Adjust the seat to the desired position. See “5-9. Seat” on page 35. • Adjust the steering wheel and steer ing wheel console to the desire[...]

31 Driving Starting the engine 1. Apply the parking brake b y moving the handle f orward. The engine cannot be star ted if the par king brak e is applied or if a driving pedal is pressed. Check that the s witch for the cutting unit driv e is depressed. If the engine star ts with the switch pulled out, it must be pushed in and pulled out again in or[...]

32 Driving 5. Set the desired engine speed (e ven idle) using the throttle control. Allow the engine to run at a moderate speed, f or 3-5 minutes bef ore loading it heavily . Starting in cold conditions If the engine does not star t due to cold conditions, repeat glow plug heating and try star ting again. Star t gas or ether must not be used. Start[...]

33 Driving • Connect the other end of the BLA CK lead to a good CHASSIS EAR TH, aw a y from the fuel tank and batter y . Remov e the leads in rev erse order : • The BLA CK cable is remov ed from the chassis and then the fully charged batter y . • Finally the RED cable from both batteries. Driving the machine 1. Release the parking brake b y p[...]

34 Driving 5 . Activ ate weight transf er if desired using the switch (30) on the control panel. The weight transf er position must alwa ys be activated when driving up slopes and deactiv ated when driving down slopes. 6. Star t the cutting unit as necessar y using the switch f or power tak e-off (22) on the control panel. The cutting unit can only[...]

35 Maintenance Chapter 6: Maintenance It is good practice to alw ays chec k for leaks and loose components after use. Also check the machine and listen f or knocking sounds . During hard use and in extreme conditions , the ser vice inter vals should be reduced. Check the cooling system’ s antifreeze before the Winter . Maintenance Schedule The f [...]

36 Maintenance 1. First change after 25 hours. When oper ating with a heavy load or at high ambient temper atures, replace the engine oil e very 125 hours. Check the condition of the battery , clean if necessar y 42 ● Check the oil le vel in the be vel gear , top up if necessar y 112 ● Check the wheel n uts - ❍ Check the parking brak e, adjus[...]

37 Maintenance 2. Maintenance and replacement are required more often in dusty conditions. 3. With daily use, the machine shall be lubricated twice weekly . 4. P erformed by authorised ser vice workshop. 5. After the first 25 hours. Cleaning Clean the machine directly after use. It is much easier to wash off gr ass cuttings bef ore they dry . Oily[...]

38 Maintenance Removing the mac hine’ s co vers Engine cover 1. Open the engine cov ers on both sides. 2. Remov e the screws holding the engine cov er . 3. Lift off the engine cov er . Assemble in the re verse order . Checking radiatorgrilles Clean the radiator grille behind the driver's seat: F old the driver's seat up . Check that the[...]

39 Maintenance Replacing the pump and generator drive belts 1. Release the belt tension f or the pump and generator drive belts completely and pry off the belts. If necessar y , slack en off the generator’ s lower mounting scre w slightly if the generator is securely f astened. 2. Install a new belt. 3. Adjust the pump and generator belts as abov[...]

40 Maintenance 4. Check that the pedal can be loc ked in the applied position with nor mal pedal f orce. 5. Adjust as necessar y using the wires' adjuster screws (R and L). Servicing the air filter If the engine seems to lack po wer or does not run smoothly this ma y be because the air filter is clogged. When driving with a dir ty air filte[...]

41 Maintenance Bleeding the fuel system If you ha ve run out of fuel, the fuel system must be bled. F acilitatebleeding b y pumping using a hand pump . Remov e the fuel tank filler cap and check the return fuel to the tank. When bubb le free fuel flows to the tank, the engine can be star ted. Carr y out full bleeding as f ollows: 1. Slack en off [...]

42 Maintenance Servicing the battery The machine is equipped with a sealed “maintenance- free” batter y . The batter y has an inspection hole that displa ys diff erent colours: • Green = OK. • White = Charge the batter y . • Red = Replace the batter y . Clean the batter y and holder with soap water solution. Discarded / replaced batter ie[...]

43 Maintenance FU3 10 A Red Control circuit (max. 10A). If FU3 blo ws the entire machine will be dead. The circuit fuses are located on the circuit board under a cov er on the control panel’ s right-hand side. If any of these fuses trip, only the rele vant circuit has no po wer . FU1 10 A Red P ow er t ak e-off ’ s magnetic clutch FU2 10 A Red [...]

44 Maintenance Replacing the bulb in the headlight Applies to the headlight lamp . F or inf or mation about the bulb type , see “T echnical data”. 1. Remov e the plastic covers (41+43) surrounding the steering wheel console. 2. Disconnect the cable (Caution! plastic hooks) and carefully lift off the unit with warning lamps (39). 3. Remov e the [...]

45 Maintenance 5. F old the wire loop f or headlight lamp to one side and replace the bulb . 6. Assemble in the re verse order . Light setting Place the machine at least 5 m from a wall. The machine must stand flat. The steering wheel console must be in the rear position. Switch on the headlights. The low beam's upper limit line must f all 1 [...]

46 Maintenance 2. Remov e the propeller shaft completely . Pull the ring to release the quick connector and to be ab le to pull the propeller shaft from the shaft jour nal. 3. Star t the engine and raise the cutting unit to the transpor t position. 4. Stop the engine. 5. Remov e the pins on both sides. 6. Low er the cutting unit to the mowing posit[...]

47 Maintenance 14. Continue to scre w in the adjustment screw f or tilt angle. 15. Install the shaft f or the link joint and its pins on both sides. 16. Star t the engine and raise the cutting unit to the transpor t position. 17. Stop the engine. 18. Install the pins on both sides. 19. Lower the cutting unit to the mo wing position. (Ignition s wit[...]

48 Maintenance 4. Set the handle f or cutting height setting. Release the handle by pressing in the b utton and tur ning it to the horizontal position, so that it does not catch on bushes etc. The height inter val is betw een 25 - 127 mm (1”- 5”), 7 positions. Tilt angle The machine must be on a flat surf ace. 1. Check the tyre pressures 100 k[...]

49 Maintenance 5. Remov e the pins on both sides. 6. Tilt the cutting unit. 7. Secure the cutting unit with the pin in the ser vice handle. Keep tr ack of the hairpin spr ing. 8. The cutting unit in the ser vice position. Releasing the Service P osition Images, see “Placing in the ser vice position”. 1. Remov e the pin from the ser vice handle [...]

50 Maintenance Checking the Blades It is impor tant that the blades are undamaged and well-ground to giv e the best mowing result. The blades should be balanced after sharpening. Damaged blades should be replaced when hitting obstacles that result in a breakdown. Let the ser vicing dealer judge whether the blade can be repaired/ ground or must be d[...]

51 Maintenance 5. Undo the locking n ut (3) and the lower scre w (4) for the belt tensioner . Remove the belt tensioner . 6. Do not unscrew the centre bolt in the driv e shaft. Remov e the rear bear ing br idge’ s screws (5) and the spacer washer (6). 7. Cut off the old belts. 8. Inser t the new belts through the gap between the spacer ring and t[...]

52 Maintenance 4. Slack en off two screws and remov e the three others f or the gear housing. T ur n the gear housing so that the belts can be mov ed under the pulley . 5. Check that the belt tensioning equipment is not jammed or binding and replace the spring. 6. P osition the new belt and reinstall the gear housing. 7. Attach the new belt. The be[...]

53 Lubrication Chapter 7: Lubrication Lubrication Schedule When in daily use, the w eekly lubrication (40 h) schedule should be carr ied out twice a week. General The position numbers f or the lubr ication points refer to the lubrication instr uctions on the f ollowing pages . Remov e the ignition key to pre vent unintentional mov ements dur ing lu[...]

54 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 f or the respective accessories for instructions. Lubricating in Accordance with the Lubrication Schedule The numb[...]

55 Lubrication 5. Lift cylinder 2 nipples, one at each end of the cylinder . Lubricate using a grease gun until grease is f orced out. 6. The power take-off shaft’ s front support bearing Lubricate using a grease gun until grease is f orced out. 7. Engine Oil Viscosity and quality Use engine oil viscosity as illustrated, class API CH4 or A CEA E5[...]

56 Lubrication Filling engine oil The oil filler opening is on the v alve co v er . Nev er fill abov e the “FULL ” mark (upper notch on the dipstic k). Fill the oil slowly . Reinstall the dipstick bef ore star ting the engine. Star t and run the engine at idling speed for appro x. 30 seconds. T ur n off the engine. W ait 30 seconds and check [...]

57 Lubrication 7. Replacing the engine’ s oil filter 1. Remov e the oil filter . If necessar y , use a filter remov er . 2. Clean the oil filter’ s mounting. 3. Wipe new , clean engine oil onto the seal for the new filter . 4. Fit the filter by hand until it mates + 3/4 turns. 5. Run the engine warm, then check that there are no leaks aro[...]

58 Lubrication Changing hydraulic oil Hydraulic oil and filters should be changed b y an authorised Husqvarna workshop. 8. Hydraulic oil filter , change Hydraulic oil filters should be changed b y an authorised Husqvarna workshop. 9. Cutting unit mounting Lubricate ball joints and shafts with the oil can. 10. Lifting arm’ s rear bearings 2 nip[...]

59 Lubrication 12. Parking brake cables See “Lubricating the cables” on page 53. Lubricate the upper ends of the cable. Remov e the cable’ s r ubber casing (R and L) when lubricating. Lubricate the cable with an oil can, apply the parking brak e a f ew times and lubricate again. 13. Control cylinder 2 nipples, one at each end of the cylinder [...]

60 Lubrication[...]

61 Trouble Shooting Guide Chapter 8: T r ouble Shooting Guide Check the machine ref er to this guide before contacting y our ser vice workshop . Prob lem Cause The engine will not star t. • Fuel tank empty • Incorrect fuel type • Air in fuel system • The glow plug system is not working (Fuse FU7) • Serious engine damage Star ter does not [...]

62 Trouble Shooting Guide The engine lacks po wer • Air in fuel system • Clogged air filter • Fuel filter bloc ked • Def ective e xcess flow v alve • Low f eed pressure • Def ective f eed pump • Incorrect timing of injection pump • Serious engine damage Engine ov erheating • Engine ov er loaded • Coolant le vel too lo w • A[...]

63 Trouble Shooting Guide Une ven mo wing results • Blades b lunt • Cutting unit set incorrectly • Long or wet gr ass • Grass b uild-up under the cov er • Diff erent air pressure in the right and left tyres • Diff erent air pressures in the tyres on the pivot wheels • Driving speed too high • Engine speed too low • The belt in the[...]

64 Trouble Shooting Guide[...]

65 Storage Chapter 9: Storage Winter Storage At the end of the mowing season, the machine should be readied f or storage (or if it will not be in use f or a long period). There is less of a risk of corrosion damage if the machine is cleaned and stored in a dr y environment. Diesel is stable and can be stored until ne xt season. Fill the fuel tank u[...]

66 Storage Service Low season is the most suitab le time to perf orm a ser vice or ov erhaul of the machine in order to ensure high function saf ety during high season. When ordering spare par ts, please specify the purchase year , model, type, and serial number . Alwa ys use genuine Husqvarna spare par ts. An annual chec k-up at an authorised ser [...]

67 Electrical system Chapter 10: Electrical system Electrical system, component locations 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. Battery 13. Magnetic coupling for power ta[...]

68 Hydraulic System Chapter 11: Hydraulic System 1. Quick couplings , see diagram 2. Lift cylinder 3. Control cylinder 4. Control unit 5. V alve bloc k wor king h ydraulics 6. V alve bloc k transmission 7. Wheel motors 8. Hydraulic pump Control and air system 9. Hydraulic pump Drive system 10. Inlet strainer 11. Hydraulic cooler 12. Hydraulic filt[...]

69 Hydraulic System K eep the hydraulic system clean. Remember to: • Thoroughly clean bef ore 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 . • Do not reuse drained oil. • Change the oil and filter according to the inter v[...]

70 Fuel system Chapter 12: Fuel system Fuel system with in-line pump has e xcellent operational reliability as long as the fuel is k ept clean. If contaminated fuel is filled or enters the system in the incorrect manner , the r isk of malfunction or wear/ damage to the injection pump increases. Contaminants include dust par ticles or in the form o[...]

71 Technical Data T echnical 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 T yre dimensions 20x10.0-10 T yre pressure, machine 100 kP a / 1.0 bar / 14.5 PSI T yre pres[...]

72 Technical Data Hydraulic System Max. working pressure 210 bar/3050 PSI P ower steering circuit max. working pressure 120 bar/1740 PSI T ransmission Hydrostatic Manuf acturer and type Pump Danf oss LPV25 25 cc variable ann ular piston F ront Sauer-Danfoss OEMV 160 cc Rear Sauer-Danf oss OEMV 125 cc Oil ISO VG 46 cSt Oil volume , total including h[...]

73 Technical Data Noise emissions with unit C155 Measured noise le vel 2 103 dB(A) Guaranteed noise le v el 2 104 dB(A) Sound pressure le vel at the oper ators ear 3 , dB(A) 90 Noise emissions with unit C132 Measured noise le vel 2 102 dB(A) Guaranteed noise le v e 2 l 102 dB(A) Sound pressure le vel at the oper ators ear 3 , dB(A) 88 Vibration lev[...]

74 Technical Data[...]

75 Design standards Design standar ds EU Declaration of Conf ormity (only applies to Europe) 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 y ear is clearly stated in plain text on the r ating plate with subsequent serial nu[...]

76 Design standards[...]

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´®z+Uy@¶6u¨ 2010-08-16 ´®z+Uy@¶6u¨ 1153893-26 Original instructions[...]