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Husqvarna YTH180 manual

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Table of contents for the manual

  • Page 1

    YTH180 Owner’ s Manual[...]

  • Page 2

    2 Look for this symbol to point out impor- tant safety precautions. It means CAUTION!!! BECOME ALERT!!! YOUR SAFETY IS INVOLVED. SAFETY R ULES 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 [...]

  • Page 3

    3 PRODUCT SPECIFICA TIONS HORSEPOWER: 18.0 GASOLINE CAPACITY 3.5 GALLONS AND TYPE: UNLEADED REGULAR OIL TYPE (API-SF/SG): SAE 30 (above 32 ° F) SAE 5W-30 (below 32 ° F) OIL CAPACITY: W/ FILTER: 4.0 PINTS W/O FILTER: 3.5 PINTS SPARK PLUG: CHAMPION RV17YC (GAP: .025”) VALVE CLEARANCE: INTAKE: .003” - .006” EXHAUST: .013” - .016” GROUND SP[...]

  • Page 4

    4 T ABLE OF CONTENTS INDEX SAFETY RULES ............................................................ 2 PRODUCT SPECIFICATIONS ...................................... 3 CUSTOMER RESPONSIBILITIES ..................... 3, 15-18 ASSEMBLY ............................................................... 6-9 OPERATION .......................................[...]

  • Page 5

    CONTENTS OF HARD W ARE P A CK 5 (2) Hex Bolts 1/4-20 x 3/4 (2) Washers 9/32 x 5/8 x 16 Ga. (2) Lock Washers 1/4 (2) Hex Nuts 1/4-20 (2) Wing Nuts 1/4-20 Parts packed separately in carton Parts Bag contents shown full size Parts bag contents not shown full size (1) Shoulder Bolt  5/16-18 (1) Washer 17/32 x 1-3/16 x 12 Gauge (1) Knob ([...]

  • Page 6

    6 ASSEMBL Y STEERING WHEEL ADAPTER FIG. 1 Your new tractor has been assembled at the factory with exception of those parts left unassembled for shipping purposes. To ensure safe and proper operation of your tractor, all parts and hardware you assemble must be tightened securely. Use the correct tools as necessary to insure proper tightness. T OOLS [...]

  • Page 7

    7 ASSEMBL Y INSTALL SEAT (See Fig. 3) Adjust seat before tightening adjustment knob. • Remove cardboard packing on seat pan. • Place seat on pan and assemble shoulder bolt. • Assemble adjustment knob and flat washer loosely. Do not tighten. • Tighten shoulder bolt securely. • Lower seat into operating position and sit on seat. • Slide s[...]

  • Page 8

    8 ASSEMBL Y INSTALL BATTERY (See Figs. 4 & 5) CAUTION: Do not short battery termi- nals. Before installing battery, remove metal bracelets, wristwatch bands, rings, etc. Positive terminal must be connected first to prevent sparking from acci- dental grounding. • Lift hood to raised position. • Be sure battery drain tube has not come loose a[...]

  • Page 9

    9 ASSEMBL Y ✓ CHECKLIST BEFORE YOU OPERATE AND ENJOY YOUR NEW TRACTOR, WE WISH TO ASSURE THAT YOU RECEIVE THE BEST PERFORMANCE AND SATISFACTION FROM THIS QUALITY PRODUCT. PLEASE REVIEW THE FOLLOWING CHECKLIST: ✓ All assembly instructions have been completed. ✓ No remaining loose parts in carton. ✓ Battery is properly prepared and charged. ([...]

  • Page 10

    10 OPERA TION KNO W Y OUR TRA CT OR READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR TRACTOR Our tractors conform to the safety standards of the American National Standards Institute. ATTACHMENT CLUTCH SWITCH : Used to engage the mower blades, or other attachments mounted to your tractor. THROTTLE CONTROL - Used to control engin[...]

  • Page 11

    11 OPERA TION The operation of any tractor can result in foreign objects thrown into the eyes, which can result in severe eye damage. Always wear safety glasses or eye shields while operating your tractor or performing any adjustments or repairs. We recom- mend a wide vision safety mask for over the spectacles or standard safety glasses. HO W T O U[...]

  • Page 12

    12 OPERA TION TO TRANSPORT (See Figs. 9 & 12) When pushing or towing your tractor, be sure to disengage transmission by placing freewheel control in freewheeling position. Free wheel control is located at the rear drawbar of tractor. • Raise attachment lift to highest position with attach- ment lift control. • Pull freewheel control knob ou[...]

  • Page 13

    13 OPERA TION • When engine starts, slowly push choke control in. • Move throttle control to fast ( ) position. • Allow engine to warm up for a few minutes before engaging drive or attachments. IMPORTANT: COLD STARTING FOR HYDRO (BELOW 40 ° F) - AFTER STARTING ENGINE AND BEFORE DRIVING, LET TRANSMISSION WARM UP FOR ONE (1) MINUTE BY PLACING [...]

  • Page 14

    14 OPERA TION MOWING TIPS • Tire chains cannot be used when the mower housing is attached to tractor. • Mower should be properly leveled for best mowing performance. See "TO LEVEL MOWER HOUSING" in the Service and Adjustments section of this manual. • The left hand side of mower should be used for trim- ming. • Drive so that clipp[...]

  • Page 15

    15 CUST OMER RESPONSIBILITIES BEFORE EACH USE ✔ ✔ ✔ ✔ ✔ T R A C T 0 R Adjust Motion Drive Belt(s) Tension Inspect Muffler/Spark Arrester Lubrication Chart Check Brake Operation Clean Air Filter Change Engine Oil Replace Air Filter Paper Cartridge Replace Spark Plug Check Battery Level/Recharge Check Tire Pressure Clean Battery and Termina[...]

  • Page 16

    16 CUST OMER RESPONSIBILITIES TRA CT OR Always observe safety rules when performing any mainte- nance. BRAKE OPERATION If tractor requires more than six (6) feet stopping distance at high speed in highest gear, then brake must be adjusted. (See "TO ADJUST BRAKE" in the Service and Adjust- ments section of this manual). TIRES • Maintain [...]

  • Page 17

    17 CUST OMER RESPONSIBILITIES BATTERY (See Fig. 18) Your tractor has a battery charging system which is suffi- cient for normal use. However, periodic charging of the battery with an automotive charger will extend it's life. • Acid solution level in each battery cell should be even with bottoms of vent wells. Add only distilled or iron free [...]

  • Page 18

    18 CUST OMER RESPONSIBILITIES CLEAN AIR SCREEN (See Fig. 20) Air screen must be kept free of dirt and chaff to prevent engine damage from overheating. Clean with a wire brush or compressed air to remove dirt and stubborn dried gum fibers. ENGINE COOLING FINS (See Fig. 20) Remove any dust, dirt or oil from engine cooling fins to prevent engine damag[...]

  • Page 19

    19 SER VICE AND ADJUSTMENTS CAUTION: BEFORE PERFORMING ANY SERVICE OR ADJUSTMENTS: • Depress clutch/brake pedal fully and set parking brake. • Place motion control lever in neutral (N) position. • Place attachment clutch in "DISENGAGED" position. • Turn ignition key "OFF" and remove key. • Make sure the blades and all [...]

  • Page 20

    20 SER VICE AND ADJUSTMENTS NUT “E” TRUNNION NUT “F” FRONT LINKS FIG. 27 BOTH FRONT LINKS MUST BE EQUAL IN LENGTH FIG. 26 MANDREL “D” “D” TO LEVEL MOWER HOUSING Adjust the mower while tractor is parked on level ground or driveway. Make sure tires are properly inflated (See “PRODUCT SPECIFICATIONS” on page 3 of this manual). If t[...]

  • Page 21

    21 SER VICE AND ADJUSTMENTS TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 28) The mower blade drive belt may be replaced without tools. Park the tractor on level surface. Engage parking brake. BELT REMOVAL - • Remove mower from tractor (See “TO REMOVE MOWER” in this section of this manual). • Work belt off both mandrel pulleys and idler pulle[...]

  • Page 22

    22 SER VICE AND ADJUSTMENTS TO REPLACE MOTION DRIVE BELT (See Fig. 31) Park the tractor on level surface. Engage parking brake. For assistance, there is a belt installation guide decal on bottom side of left footrest. • Remove mower (See “TO REMOVE MOWER” in this section of this manual.) • Disconnect clutch wire harness. • Remove clutch l[...]

  • Page 23

    23 SER VICE AND ADJUSTMENTS WASHERS RETAINING RING SQUARE KEY WHEEL COVER (REARWHEELONLY) TO ADJUST STEERING WHEEL ALIGNMENT If steering wheel crossbars are not horizontal (left to right) when wheels are positioned straight forward, remove steer- ing wheel and reassemble per instructions in the Assembly section of this manual. FRONT WHEEL TOE-IN/CA[...]

  • Page 24

    SER VICE AND ADJUSTMENTS 24 TO REPLACE FUSE Replace with 30 amp automotive-type plug-in fuse. The fuse holder is located in the engine compartment, directly in front of the dash. TO REPLACE HEADLIGHT BULB • Raise hood. • Pull bulb holder out of the hole in the backside of the grill. • Replace bulb in holder and push bulb holder securely back [...]

  • Page 25

    25 SER VICE AND ADJUSTMENTS ACCELERATION TEST - • Move throttle control lever from slow ( ) to fast ( ) position. If engine hesitates or dies, turn idle mixture screw out (counterclockwise) 1/8 turn. Repeat test and continue to adjust, if necessary, until engine acceler- ates smoothly. High speed stop is factory adjusted. Do not adjust-damage may[...]

  • Page 26

    26 ST ORA GE Immediately prepare your tractor for storage at the end of the season or if the tractor will not be used for 30 days or more. CAUTION: Never store the tractor with gasoline in the tank inside a building where fumes may reach an open flame or spark. Allow the engine to cool before storing in any enclosure. TRA CT OR Remove mower from tr[...]

  • Page 27

    TROUBLESHOOTING POINTS 27 Will not start 1. Out of fuel. 1. Fill fuel tank. 2. Engine not “CHOKED” properly. 2. See “TO START ENGINE” in Operation section. 3. Engine flooded. 3. Wait several minutes before attempting to start. 4. Bad spark plug. 4. Replace spark plug. 5. Dirty air filter. 5. Clean/replace air filter. 6. Dirty fuel filter. 6[...]

  • Page 28

    TROUBLESHOOTING POINTS 28 PROBLEM CAUSE CORRECTION Engine continues to run 1. Faulty operator-safety presence control system. 1. Check wiring, switches and connections. If not when operator leaves seat corrected, contact an authorized service center/ with attachment clutch department. engaged Poor cut - uneven 1. Worn, bent or loose blade. 1. Repla[...]

  • Page 29

    29 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) SCHEMATIC BATTERY G B S L M IGNITION SWITCH FUSE 30 AMP. 2 3 4 IGNITION UNIT SPARK PLUGS RED BLUE BLUE 12.2 VOLT SENSOR OIL PRESSURE SWITCH (ENGINE OFF) HOUR METER HEADLIGHT SWITCH (OFF) HEAD- LIGHTS BLACK BROWN IGNITION SWITCH CIRCUIT POSITION OFF B + L ON B + S + L START M + G S B G M L[...]

  • Page 30

    30 REP AIR P AR TS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) ELECTRICAL DEPRESS FOOT PEDAL DISENGAGE ATTACHMENT CHECK OIL FUEL 22 Comm Harness 141571 21 40 26 51 34 50 29 33 32 31 30 28 61 62 63 35 39 36 36 24 42 43 44 44 23 25 41 19 20 19 20 8 9 7 6 3 5 4 2 1 12 11 10 10 TERMINAL COVER, NO WASHER 46 47 64 142321 56 70 1[...]

  • Page 31

    31 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) ELECTRICAL 1 532121537 Battery 2 874760412 Bolt, Hex Head 1/4-20 x 3/4 3 819091016 Washer 9/32 x 5/8 x 16 Gauge 4 810040400 Washer, Lock 1/4 5 532121264 Caps, Battery 6 873220400 Nut, Hex 1/4-20 7 532007697 Tube, Tray, Battery 8 532124886 Tray, Battery 9 532109596 Clamp, Ho[...]

  • Page 32

    32 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) CHASSIS AND ENCLOSURES 81 3 2 3 38 39 35 26 3 3 13 35 26 33 10 34 1 3 11 3 59 9 15 64 76 25 26 71 69 71 70 82 83 84 24 26 91 92 90 86 85 50 79 78 80 17 87 16 67 66 15 30 99 26 68 46 94 95 77 97 98 26 25 26 25 44 3 31 24 24 47 3 28 42 29 93 72 71 75 51 14 3 6 3 3 3 63 20 24 [...]

  • Page 33

    33 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) CHASSIS AND ENCLOSURES 69 532106784 Strap Assembly, Hinge, Rear 70 532104618 Strap Assembly, Hinge, Front 71 873640400 Nut, Keps Blk Hex 1/4-20 UNC 72 532124574 Support Assembly, Grille 74 873680600 Nut, Crownlock 3/8-16 UNC 75 532123481 Bolt, Shoulder 1/4-20 UNC 76 8747806[...]

  • Page 34

    34 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) DRIVE 88 86 87 51 32 61 30 52 61 58 32 45 59 42 42 51 31 81 38 61 49 19 27 37 41 42 40 44 48 45 19 97 16 73 18 103 102 94 3 19 16 100 91 98 46 53 35 55 36 50 26 47 42 62 35 36 22 39 34 28 29 89 69 16 1 15 100 77 96 92 100 71 18 77 100 104 84 16 105 106 100 30 52 67 57 93 96[...]

  • Page 35

    35 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) DRIVE KEY PART NO. NO. DESCRIPTION KEY PART NO. NO. DESCRIPTION 1 532144436 Transaxle Assembly 2 532142431 Spring, Return, Brake 3 532143995 Pulley, Transaxle 8 532141002 Rod Shift Fender YT 9 532137140 Clutch, Electric 10 876020416 Pin Cotter 1/8 x 1 CAD 15 874780544 Bolt [...]

  • Page 36

    36 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) STEERING ASSEMBLY 5 9 5 7 7 9 4 33 35 34 33 3 34 35 32 43 6 43 8 17 18 19 22 21 20 8 27 23 11 12 24 29 25 5 8 10 12 11 11 38 40 39 1 41 37 36 37 15 8 6 9 46 46 8 6 9 2 47 14 13 47 16 16[...]

  • Page 37

    37 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) STEERING ASSEMBLY KEY PART NO. NO. DESCRIPTION 1 532124415 Wheel Steering Auto Grey 2 532142033 Axle Asm Fr LT W/gzks 38/42 3 532135227 Spindle Asm LH 4 532135228 Spindle Asm RH 5 532124931 Bearing Race Thrust Harden 6 532121748 Washer 25/32 X 1-5/8 X 16 Ga 7 819272016 Wash[...]

  • Page 38

    38 REP AIR P ARTS 118 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) SEAT ASSEMBLY KEY PART NO. NO. DESCRIPTION 16 532123740 Spring Cprsn 1 310 Blk Pnt 17 532123976 Nut Lock 1/4 Lge Flg Gr 5 Zinc 18 532124238 Cap Spring Seat 21 532139888 Bolt Shoulder 5/16-18 Unc Blkz 22 873680500 Nut Crown Lock 5/16-18 24 819171912 Washer 17/32 X 1-3/16 X [...]

  • Page 39

    39 REP AIR P ARTS 118 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) DECALS 11 14 9 10 3 8 4 14 7 5 2 1 532138956 Decal Instruction Dash Eng/fr 2 532132507 Decal HP Engine 3 532140855 Decal Hood RH Husq YT180 Insert 4 532140854 Decal Hood LH Husq YT180 Insert 5 532121549 Decal Caution Battery Fr/ger 6 532136832 Decal V-Belt Sch 7 532131582 [...]

  • Page 40

    40 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) ENGINE 24 23 32 31 34 33 37 33 41 40 39 17 3 14 38 15 16 17 2 1 7 OPTIONAL EQUIPMENT Spark Arrester 29 35 36 10 8 9 4 11 6 5 12 13 16 26 25 19 21 18 20 22[...]

  • Page 41

    41 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) ENGINE KEY PART NO. NO. DESCRIPTION NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm 1 532137214 Control RH Blk Flg 37 88 2 817720410 Screw Hex Thd Cut 1/4-20x5/8 T 3 - - - - - - - - Engine Kohler, Model No. PS58559 4 532137978 Muffler VGT YT Dual Inlet[...]

  • Page 42

    42 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) MOWER LIFT ASSEMBLY 44 15 20 16 17 18 20 20 15 20 4 5 6 2 3 1 6 5 4 7 8 10 21 22 23 24 25 26 27 28 29 30 46 48 42 43 47 45 12 11 31 32 31 32 19 19 13 13 13 13[...]

  • Page 43

    43 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) MOWER LIFT ASSEMBLY KEY PART NO. NO. DESCRIPTION 1 532136971 Wire Asm Inner W/plunger 20 56 2 532136968 Shaft Asm Lift RH w/Inf 3 532138284 Pin Groove 1 500 Zinc 4 812000002 E Ring #5133-62 5 819211621 Washer 21/32 X 1 x 21 Ga 6 532120183 Bearing Nylon Blk 629 Id 7 53212563[...]

  • Page 44

    44 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) 42" MOWER 15 14 12 13 11 10 9 8 16 68 30 31 32 33 35 54 34 55 56 40 40 17 1 46 44 21 22 24 25 26 27 2 28 29 23 21 21 21 18 18 20 19 4 3 5 6 2 21 84 83 36 37 40 85 36 37 37 38 61 59 90 90 91 92 93 94 93 92 95 102 104 103 105 106 103 104 105 106 101 113 117 116 118 119 1[...]

  • Page 45

    45 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) 42" MOWER KEY PART NO. NO. DESCRIPTION KEY PART NO. NO. DESCRIPTION 1 532144393 Deck Asm MWR 42"weldment 2 872140506 Bolt Rdhd Sqnk 5/16-18unc X3/4 3 532138017 Bracket Asm Fr Sway Bar 38/42 4 532138440 Bracket Asm Deck 42"sway Bar 5 532124670 Retainer Spring [...]

  • Page 46

    REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) HYDR O-GEAR TRANSAXLE - - MODEL NUMBER 310-0750 46[...]

  • Page 47

    47 REP AIR P ARTS 18 HP 42" TRA CT OR - MODEL NO . YTH180 (954001172A) HYDRO-GEAR TRANSAXLE - - MODEL NUMBER 310-0750 KEY PART NO. NO. DESCRIPTION 1 532142930 Housing, Lower 2 532142931 Assembly, Upper Housing 3 532142932 Seal, Lip 4 532142928 Ring, Wire Retaining 5 532142933 Ring, Retaining 6 532142934 Bearing, Shaft Ball 7 532142935 Bearing,[...]

  • Page 48

    48 SER VICE NO TES[...]

  • Page 49

    49 SER VICE NO TES[...]

  • Page 50

    50 15° MAX. SIGHT AND HOLD THIS LEVEL WITH SKY LINE OR TREE. CUT OUT ON DOTTED LINES THIS IS A 15° SLOPE SIGHTING  GUIDE 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 gr[...]

  • Page 51

    51 Effective May 1, 1992 W ARRANTY ST A TEMENT (2) Failure to operate or maintain the unit in accordance with the Owner’s/Operator’s manual or instruction sheet furnished by Husqvarna. (3) Alterations or modifications that affect the unit's performance, operation, safety, durability, change its intended use, or cause failure of compliance [...]

  • Page 52

    532145464 07.15.94 Printed in U.S.A.[...]