Husqvarna GTH2550, Owner'S Manual

Page 1: ...GTH2550 Owner s Manual ...

Page 2: ...facturer s recommendations for wheel weights or counterweights to improve stability Useextracarewithgrasscatchersorotherattachments These can change the stability of the machine Keep all movement on the slopes slow and gradual Do not make sudden changes in speed or direction Avoidstartingorstoppingonaslope Iftireslosetraction disengage the blades and proceed slowly straight down the slope DO NOT D...

Page 3: ...ES Safe Operation Practices for Ride On Mowers IMPORTANT THIS CUTTING MACHINE IS CAPABLE OF AMPUTATING HANDS AND FEET AND THROWING OBJECTS FAILURE TO OBSERVE THE FOLLOWING SAFETY INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR DEATH Lookforthissymboltopointoutimportant safety precautions It means CAUTION BECOME ALERT YOUR SAFETY IS IN VOLVED CAUTION In order to prevent acciden tal starting when set...

Page 4: ...STOMER RESPONSIBILITIES Read and observe the safety rules Followaregularscheduleinmaintaining caringforand using your tractor Follow the instructions under Customer Responsibili ties and Storage sections of this owner s manual WARNING This tractor is equipped with an internal com bustion engine and should not be used on or near any unimproved forest covered brush covered or grass cov ered land unl...

Page 5: ...lts Nose Roller Nose Roller Nose Roller Brackets 2 Hex Bolts 5 16 18 x 1 2 Washers 17 32 x 7 8 x 16 Ga 2 Locknuts 5 16 18 Steering Wheel 1 Knob 1 Washer 17 32 x 1 3 16 x 12 Gauge Seat 4 Brackets 12 Carriage Bolts 5 16 18 x 5 8 12 Crownlock Nuts 5 16 18 2 Keys Keys Slope Sheet 1 Oil Drain Tube For Future Use 1 Front Plate Assembly 5 Retainer Springs double loop 2 Retainer Springs single loop 2 Flan...

Page 6: ... TRACTOR FROM CARTON UNPACK CARTON Remove all accessible loose parts and parts cartons from carton Cut from top to bottom along lines on all four corners of carton and lay panels flat Remove mower and packing materials Check for any additional loose parts or cartons and remove BEFORE REMOVING TRACTOR FROM SKID ATTACH STEERING WHEEL See Fig 1 Removehexbolt lockwasherandlargeflatwasherfrom steering ...

Page 7: ...RT inthe Operation section of this manual Roll tractor forward off skid TO ATTACH NOSE ROLLER See Fig 4 Position brackets washers and nose roller between deck mounting brackets as shown Be sure to position brackets on correct side as shown Install hex bolts and locknuts as shown Tighten hardwaresecurely NOTE Be sure tabs brackets are positioned in tab holes in deck brackets FIG 4 B BRACKET TAB WAS...

Page 8: ...ar to chassis bracket under left footrest and retain with double loop retainer spring If equipped turn height adjustment knob clockwise to remove slack from mower suspension Raise deck to highest position Adjustgaugewheelsbeforeoperatingmowerasshown in the Operation section of this manual ASSEMBLY FIG 5 SHOULDER BOLT GAUGE WHEEL 3 8 16 CENTER LOCKNUT GAUGE WHEEL MOUNTING BRACKET 3 8 WASHER CARRIAG...

Page 9: ...TION OF ALL BELTS See the figures that are shown for replacing motion mower drive and mower blade drive belts in the Service and Adjustmentssectionofthismanual Verifythatthebeltsare routed correctly CHECK BRAKE SYSTEM Afteryoulearnhowtooperateyourtractor checktoseethat the brake is properly adjusted See TO ADJUST BRAKE in the Service and Adjustments section of this manual ANTI SWAY BAR SINGLE LOOP...

Page 10: ...k mower and drive belts Be sure they are routed properly around pulleys and inside all belt keepers 3 Check wiring See that all connections are still secure and wires are properly clamped 3 Before driving tractor be sure freewheel control is in drive position WHILELEARNINGHOWTOUSEYOURTRACTOR PAY EXTRA ATTENTION TO THE FOLLOWING IMPORTANT ITEMS 3 Engine oil is at proper level 3 Fuel tank is filled ...

Page 11: ...ARD FAST SLOW ENGINE ON ENGINE OFF OIL PRESSURE LIGHTS ON FUEL CHOKE MOWER HEIGHT PARKING BRAKE LOCKED UNLOCKED REVERSE NEUTRAL HIGH LOW ATTACHMENT CLUTCH ENGAGED MOWER LIFT DANGER KEEP HANDS AND FEET AWAY FREE WHEEL Automatic Models only OVER TEMP LIGHT PARKING BRAKE IGNITION ATTACHMENT CLUTCH DISENGAGED P KEEP AREA CLEAR SLOPE HAZARDS 15 15 15 SEE SAFETY RULES SECTION ...

Page 12: ...TION CONTROL Selects the speed and direction of tractor CHOKE CONTROL Used when starting a cold engine AMMETER Indicates charging or discharging of battery LIGHT SWITCH Turns the headlights on and off THROTTLE CONTROL Used to control engine speed FREEWHEEL CONTROL Disengages transmission for pushing or slowly towing the tractor with the engine off IGNITION SWITCH Used to start and stop the engine ...

Page 13: ...rolled by turning the height adjust ment knob in desired direction Turn knob clockwise to raise cutting height Turn knob counterclockwise to lower cutting height The cutting height range is approximately 1 1 2 to 4 1 2 The heights are measured from the ground to the blade tip withtheenginenotrunning Theseheightsareapproximate and may vary depending upon soil conditions height of grass and types of...

Page 14: ...ol in freewheeling position Freewheelcontrolislocatedatthereardrawbarof tractor Raiseattachmentlifttohighestpositionwithattachment lift control Remove retainer spring from freewheel control rod Push control rod in to disengage transmission and reinsertretainerspringintocontrolrodholenowonback side of the bracket Do not push or tow tractor at more than two 2 MPH To reengage transmission reverse abo...

Page 15: ... set parking brake Place motion control lever in neutral N position Move attachment clutch to DISENGAGED position Move throttle control to fast position Pullchokecontroloutforacoldenginestartattempt For a warm engine start attempt the choke control may not beneeded NOTE Before starting read the warm and cold starting proceduresbelow Insert key into ignition and turn key clockwise to START position...

Page 16: ...utral N position slowly disengageclutch brakepedal Slowly move motion control lever forward After the tractor moves approximately five 5 feet slowly move motioncontrollevertoreverseposition Afterthetractor moves approximately five 5 feet return the motion control lever to the neutral N position Repeat this procedure with the motion control lever three 3 times Your tractor is now purged and ready f...

Page 17: ... 2 5 5 6 7 GENERAL RECOMMENDATIONS The warranty on this tractor does not cover items that have beensubjectedtooperatorabuseornegligence Toreceive full value from the warranty operator must maintain tractor as instructed in this manual Some adjustments will need to be made periodically to properly maintain your tractor All adjustments in the Service and Adjustments section of this manual should be ...

Page 18: ...LY CENTER HOLE IN BLADE MUST ALIGN WITH STAR ON MANDREL ASSEMBLY Reassemble hex bolt lock washer and flat washer in exact order as shown Tighten bolt securely 27 35 Ft Lbs torque IMPORTANT BLADE BOLT IS GRADE 8 HEAT TREATED TO SHARPEN BLADE See Fig 15 NOTE Wedonotrecommendsharpeningblade butifyou do be sure the blade is balanced Care should be taken to keep the blade balanced An unbalanced blade w...

Page 19: ...n more freely when warm Catch oil in a suitable container Remove oil fill cap dipstick Be careful not to allow dirt to enter the engine when changing oil Removecapfrombottomfittingofdrainvalveandinstall the drain tube onto the fitting Unlockdrainvalvebypushinginwardandturningcoun terclockwise To open pull out on the drain valve Afteroilhasdrainedcompletely closeandlockthedrain valve by pushing inw...

Page 20: ... MUFFLER Inspect and replace corroded muffler and spark arrester if equipped as it could create a fire hazard and or damage SPARK PLUGS Replace spark plugs at the beginning of each mowing season or after every 100 hours of operation whichever occurs first Spark plug type and gap setting are shown in PRODUCT SPECIFICATIONS section of this manual IN LINE FUEL FILTER See Fig 19 The fuel filter should...

Page 21: ...e side of mower only To raise one side of mower tighten lift link adjustment nut on that side To lower one side of mower loosen lift link adjustment nut on that side FIG 21 A A GROUND LINE FIG 20 TRACTOR TO REMOVE MOWER See Fig 20 Place attachment clutch in DISENGAGED position If equipped turn height adjustment knob to lowest setting Lower mower to its lowest position Removeretainerspringholdingan...

Page 22: ...DE TO SIDE IF THE FOLLOWING FRONT TO BACK ADJUSTMENT IS NECESSARY BE SURE TO ADJUST BOTH FRONT LINKS EQUALLY SO MOWER WILL STAY LEVEL SIDE TO SIDE Toobtainthebestcuttingresults themowerhousingshould be adjusted so the front is approximately 1 8 to 1 2 lower than the rear when the mower is in its highest position Checkadjustmentonrightsideoftractor Measuredistance F directlyinfrontofandbehindtheman...

Page 23: ...willwearwhichmay cause the mower blades to not engage or to not stop as required Adjustments should be made by your nearest authorizedservicecenter department Make sure attachment clutch and ignition switches are in OFF position ROTOR CLUTCH PLATE 012 NYLON LOCKNUT 3 SLOT 3 BRAKE PLATE FIG 26 FIG 25 MOWER BLADE DRIVE BELT R H MANDREL COVER CENTER MANDREL SCREW L H MANDREL SWAY BAR BRACKET SPRING S...

Page 24: ...er has been preset at the factory and adjustment should not be necessary If for any reason the motion control lever will not hold its position while at a selected speed it may be adjusted at the friction pack located on the right side of chassis Park tractor on level surface Stop tractor by turning ignitionkeyto OFF positionandengageparkingbrake Place motion control lever in neutral N position Whi...

Page 25: ...y rot and corrosion TO START ENGINE WITH A WEAK BATTERY See Fig 33 CAUTION Lead acidbatteriesgenerate explosive gases Keep sparks flame and smoking materials away from bat teries Alwaysweareyeprotectionwhen aroundbatteries If your battery is too weak to start the engine it should be recharged See BATTERY intheCUSTOMERRESPON SIBILITIES section of this manual If jumper cables are used for emergency ...

Page 26: ... hex bolt and keps nut as shown Tighten securely ConnectBLACKgroundingcabletonegative battery terminal with remaining hex bolt and keps nut Tighten securely Close terminal access doors Close hood Positive terminal must be connected first to prevent sparking from acciden tal grounding HEX BOLT KEPS NUT POSITIVE RED CABLE NEGATIVE BLACK CABLE TERMINAL GUARD TERMINAL ACCESS DOOR FIG 34 ADJUSTMENT BOL...

Page 27: ... as follows Withenginenotrunning movechokecontrol locatedon dash panel to full choke position Loosen knob and remove cover assembly from air cleaner Chokeshouldbeclosed Ifitisnot loosencasingclamp screw and move choke cable until choke is completely closed Tighten casing clamp screw securely Replace air cleaner cover assembly and tighten knob TO ADJUST CARBURETOR Your carburetor is not adjustable ...

Page 28: ...NG 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 METHANOL CAN ATTRACT MOISTURE WHICH LEADS TO SEPARATION AND FORMATION OF ACIDS DURING STORAGE ACIDIC GAS CAN DAMAGE THE FUEL SYSTEM OF AN ENGINE WHILE IN STORAGE Drain the fuel tank Start the engine and let it run ...

Page 29: ...ition switch 7 Check replace ignition switch 8 Faulty solenoid or starter 8 Check replace solenoid or starter 9 Faulty operator presence switch es 9 Contact an authorized service center department Engine clicks but will not 1 Weak or dead battery 1 Recharge or replace battery start 2 Corroded battery terminals 2 Clean battery terminals 3 Loose or damaged wiring 3 Check all wiring 4 Faulty solenoid...

Page 30: ...ose blade 6 Replace sharpen blade Tighten blade bolt 7 Buildup of grass leaves and trash under mower 7 Clean underside of mower housing 8 Mower drive belt worn 8 Replace mower drive belt 9 Blades improperly installed 9 Reinstall blades sharp edge down 10 Improper blades used 10 Replace with blades listed in this manual 11 Clogged mower deck vent holes from buildup of 11 Clean around mandrels to op...

Page 31: ...NONE NONE OPTIONAL HEADLIGHTS BLACK ELECTRIC CLUTCH CLUTCH BRAKE PEDAL UP PTO DISENGAGED C G F B E A D H RED GREEN GREEN BLUE RED RED RED WHITE WHITE WHITE BLACK HOUR METER OPTIONAL STARTER PTO SWITCH CIRCUIT POSITION OFF C F B E A D ON C G B H B A G H D F C E IGNITION SWITCH G B S M A1 A2 L OPERATOR PRESENCE RELAY 1 85 86 30 87 87A SEAT SWITCH NOT OCCUPIED 87 87A 85 86 30 RELAY FUEL LINE RED 28 V...

Page 32: ...32 30 33 24 42 43 40 26 28 25 50 29 27 27 41 12 12 11 10 8 2 1 27 16 81 D C AMPERES 45 22 21 79 16 46 89 REPAIR PARTS TRACTOR MODEL NO GTH2550B ELECTRICAL ...

Page 33: ...tery 25 532146149 Cable Battery 26 532108824 Fuse 27 873510400 Nut Keps Hex 1 4 20 28 532170697 Cable Ground 29 532160784 Switch Plunger Normal Op Olive 30 532175566 Switch Ign 33 532140401 Key 40 532170238 Harness Ign 41 817720408 Screw 1 4 20 x 1 2 42 532131563 Cover TerminalRed 43 532178861 Solenoid 45 532122822 Ammeter 46 532169635 HourmeterSnap In 50 532174651 Switch PTO 79 532163996 Bulbhold...

Page 34: ...6 50 42 17 17 17 21 21 44 106 8 68 17 90 17 6 7 7 7 30 45 70 60 17 63 99 100 17 98 101 102 103 68 35 153 130 5 140 141 14 18 130 130 158 37 17 17 58 138 144 17 130 142 17 130 32 17 139 17 33 139 122 150 122 148 36 36 152 15 25 REPAIR PARTS TRACTOR MODEL NO GTH2550B CHASSIS AND ENCLOSURES ...

Page 35: ...532154914 Bracket Asm Susp Chassis Lh KEY PART NO NO DESCRIPTION 58 532175315 Bracket Asm Fender 60 817060620 Screw 3 8 16 x 1 1 4 63 819131614 Washer 13 32 x 1 x 14 Ga 68 817490508 Screw 5 16 18 x 1 2 70 532177679 Belt Keeper VGT GD 84 532142992 Stop Over Center Mower 86 874760716 Bolt Fin Hex 7 16 14 Unc x 1 90 811050600 Washer Lock External Tooth 3 8 91 532175464 Rail Frame Lh 98 532175847 Brac...

Page 36: ...52 54 65 66 3 69 7 33 51 34 35 37 38 40 41 42 68 46 36 37 38 64 48 47 39 67 5 56 29 72 72 89 76 73 77 70 71 74 89 76 99 98 94 73 96 101 100 112 89 72 72 22 23 99 91 90 88 87 86 85 84 80 79 81 82 81 83 72 67 92 93 104 105 20 61 2 2 109 17 113 77 6 30 111 116 115 107 106 108 81 28 ...

Page 37: ...5142 Pin Roll 69 532123800 Washer 70 532166624 ConsoleHydroFender 71 532151179 Plate Console Shift 72 873800500 Locknut Hex W Washer Insert 73 874490548 Bolt Hex Flghd 5 16 18 x 3 Gr 5 74 532142432 Screw Hex Wsh Hi Lo 1 4 1 2 76 532140481 Bracket Transaxle 77 874760716 Bolt Fin Hex 7 16 14 x 1 79 872110505 Bolt Carriage 5 16 18 x 5 8 80 532140484 Bracket Torque RH 81 817060612 Screw 3 8 16 x 3 4 8...

Page 38: ...TOR MODEL NO GTH2550B STEERING ASSEMBLY 8 6 29 28 23 31 41 22 21 20 44 1 45 14 25 34 33 32 6 27 42 27 6 19 15 14 35 18 16 9 8 7 2 6 6 4 14 15 14 14 15 9 3 8 7 3 6 6 5 13 13 7 8 14 15 14 14 36 38 40 37 39 17 14 26 12 10 11 ...

Page 39: ...eering 21 532159945 Adapter WheelSteering 22 532155105 Bushing Strg 23 532152927 Screw 25 874780616 Bolt Fin Hex 3 8 16 x 1 Gr 5 26 532166627 Cap Wheel Steering 27 532124937 Bearing Col Strg 28 817000612 Screw 3 8 16 x 3 4 29 532104239 Bearing Flange 31 532138136 Bushing Nyliner Snap 32 819111610 Washer 11 32 x 1 x 10 Ga 33 810040500 Washer Lock Hvy Hlcl Spr 5 16 34 874780512 Bolt Hex Hd 5 16 18 x...

Page 40: ...24 Unf 26 532003645 Bushing 27 532139277 Stem Tank Fuel 28 532007834 FuelLine 29 532137180 Spark Arrester Kit REPAIR PARTS TRACTOR MODEL NO GTH2550B ENGINE NOTE All component dimensions given in U S inches 1 inch 25 4 mm KEY PART NO NO DESCRIPTION 35 810040500 Washer 37 532123487 ClampHose 39 817490636 Screw TT 3 8 16 x 2 1 4 UNC 40 817490664 Screw TT 3 8 16 x 4 UNC 41 532126197 Washer 1 1 2 OD X ...

Page 41: ...2 532121246 Bracket Mounting Switch 13 532121248 Bushing Snap 14 872050412 Bolt Carriage 1 4 20 X 1 1 2 15 532121249 Spacer Split 16 532123740 Spring Cprsn 17 532123976 Nut Lock 1 4 Lge Flg Gr 5 18 819171912 Washer 17 32 X 1 3 16 X 12 Ga 19 532166369 Knob Seat 20 532124238 Cap Spring Seat 21 532171852 Bolt Shoulder 5 16 18 22 873800500 Nut Crownlock 5 16 18 KEY PART NO NO DESCRIPTION KEY PART NO N...

Page 42: ...138311 Decal Handle Lift Lift Handle 532133671 Pad Footrest 532178466 Manual Owner s English 532178467 Manual Owner s French KEY PART NO NO DESCRIPTION KEY PART NO NO DESCRIPTION KEY PART NO NO DESCRIPTION 1 532059192 Cap Valve Tire 2 532065139 Stem Valve 3 532144509 Rim Assembly Front 4 532008134 Tube Front Service Item Only 5 532106230 Tire Front 6 532124957 Fitting Grease 7 532124959 Bearing Fl...

Page 43: ... 31 30 4 5 5 4 2 11 11 7 8 9 10 3 6 1 14 41 14 41 13 13 21 19 20 15 73 16 23 12 23 23 23 18 38 39 40 43 42 29 70 33 72 26 12 78 24 75 76 76 23 REPAIR PARTS TRACTOR MODEL NO GTH2550B LIFT ASSEMBLY KEY PART NO NO DESCRIPTION 26 873800800 Nut Lock W Wsh 1 2 13 Unc 29 532150233 TrunnionInfinHeight 30 532110807 Nut Special 31 819131016 Washer 13 32 x 5 8 x 16 Ga 32 532137150 Spring Compression Inf Hgt ...

Page 44: ...27 28 27 31 30 30 32 33 114 45 27 31 40 32 66 37 33 65 5 6 6 7 54 34 35 36 42 99 113 26 45 15 14 16 13 11 10 9 8 2 19 20 2 19 21 22 18 17 23 1 45 62 104 106 107 105 108 103 67 59 6 110 58 109 64 94 95 97 98 97 29 96 29 94 2 112 REPAIR PARTS TRACTOR MODEL NO GTH2550B MOWER DECK ...

Page 45: ...er 45 873680600 Nut Crownlock 3 8 16 Unc 46 874760628 Bolt Fin Hex 3 8 16 Unc x 1 3 4 47 532137200 Cover MandrelRH 48 532137729 Screw Thd Roll 1 4 20 x 5 8 49 532136574 Cover MandrelLH 50 532137272 Arm Idler Primary 51 532137273 Spring Secondary 52 532139245 Pulley Idler V Groove 53 532137789 Shield Idler 54 532139573 V Belt Mower Primary 55 532144959 V Belt Mower Secondary 56 532138687 Spring Pri...

Page 46: ...IDE ONLY RIDE UP AND DOWN HILL NOT ACROSS HILL SUGGESTED GUIDE FOR SIGHTING SLOPES FOR SAFE OPERATION Operate your Tractor up and down the face of slopes not greater than 15 never across the face Make turns gradu ally to prevent tipping or loss of control Exercise extreme caution when changing direction on slopes ...

Page 47: ... one year prorated limited warranty with 100 replacement during the first 6 months SECTION 4 EXCEPTIONS AND LIMITATIONS This warranty shall be inapplicable to defects resulting from the following 1 Accident abuse misuse negligence and neglect including stale fuel dirt abrasives moisture rust corrosion or any adverse reaction due to incorrect storage or use habits 2 Failuretooperateormaintaintheuni...

Page 48: ...532178466 2 28 01 TR Printed in U S A ...