YTH20K46 Owner's Manual / 96043003301 / 2008-10
SAFETY RULES Safe Operation Practices for Ride-On Mowers DANGER: 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. • WARNING: In order to prevent accidental starting when setting up, transporting, adjusting or making repairs, always disconnect spark plug wire and place wire where it cannot contact spark plug.
SAFETY RULES Safe Operation Practices for Ride-On Mowers III. CHILDREN GENERAL SERVICE • 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. • Keep machine free of grass, leaves, or other debris build-up. Clean oil or fuel spillage and remove any fuelsoaked debris. Allow machine to cool before storing.
PRODUCT SPECIFICATIONS Gasoline Capacity and type: 2.5 Gallons Unleaded Regular Oil Type (API-SG-SL): SAE 30 (above 32°F) SAE 5W-30 (below 32°F) Oil Capacity: W/ Filter: W/O Filter: Spark Plug: Champion RC12YC (Gap: .030") Ground Speed (MPH): Forward: Reverse: Charging System: 15 AMPS @ 3600 RPM Battery: AMP/HR: MIN. CCA: Case Size: Blade Bolt Torque: 45-55 FT. LBS. CUSTOMER RESPONSIBILITIES • • • 51 oz 35 oz Read and observe the safety rules.
UNASSEMBLED PARTS Slope Sheet Key (1) Oil Drain Tube (2) Keys ASSEMBLY Your new tractor has been assembled at the factory with the exception of those parts left unassembled for shipping puposes. When right or left hand is mentioned in this manual, it means when you are in the operating position (seated behind the steering wheel). ADJUST SEAT (See Fig. 2) • • TO REMOVE TRACTOR FROM CARTON • Sit in seat.
ASSEMBLY ✓CHECKLIST CHECK TIRE PRESSURE BEFORE YOU OPERATE 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. ✓ Seat is adjusted comfortably and tightened securely. ✓ All tires are properly inflated. (For shipping purposes, the tires were overinflated at the factory).
OPERATION These symbols may appear on your tractor or in literature supplied with the product. Learn and understand their meaning.
OPERATION KNOW YOUR TRACTOR READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR TRACTOR Compare the illustrations with your tractor to familiarize yourself with the locations of various controls and adjustments. Save this manual for future reference. P H D E B G F C J A K L M FIG. 3 Our tractors conform to the applicable safety standards of the American National Standards Institute.
OPERATION 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 recommend standard safety glasses or a wide vision safety mask worn over spectacles. HOW TO USE YOUR TRACTOR NOTE: Under certain conditions when tractor is standing idle with the engine running, hot engine exhaust gases may cause “browning” of grass.
OPERATION SYSTEM CHARACTERISTICS The cruise control should only be used while mowing or transporting on relatively smooth, straight surfaces. Other conditions such as trimming at slow speeds may cause the cruise control to disengage. Do not use the cruise control on slopes, rough terrian or while trimmimg or turning. • With forward drive pedal depressed to desired speed, pull cruise control lever (J) up and hold while lifting your foot off the pedal, then release the lever.
OPERATION USING THE REVERSE OPERATION SYSTEM Only use if you are certain no children or other bystanders will enter the mowing area. • Depress brake pedal all the way down. • With engine running, turn ignition key counterclockwise to ROS "ON" position. • Look down and behind before and while backing. • Slowly depress reverse drive pedal to start movement. • When use of the ROS is no longer needed, turn the ignition key clockwise to engine "ON" position.
OPERATION AUTOMATIC TRANSMISSION WARM UP • Before driving the unit in cold weather, the transmission should be warmed up as follows: • Be sure the tractor is on level ground. • Release the parking brake and let the brake slowly return to operating position. • Allow one minute for transmission to warm up. This can be done during the engine warm up period. • The attachments can also be used during the engine warmup period after the transmission has been warmed up.
OPERATION MOWING TIPS • • • • 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 trimming. Drive so that clippings are discharged onto the area that has been cut. Have the cut area to the right of the machine. This will result in a more even distribution of clippings and more uniform cutting.
MAINTENANCE MAINTENANCE SCHEDULE BEFORE EACH USE EVERY 8 HOURS EVERY 25 HOURS EVERY 50 HOURS EVERY 100 HOURS EVERY SEASON BEFORE STORAGE Check Brake Operation Check Tire Pressure T Check Operator Presence & ROS Systems R A Check for Loose Fasteners C Check/Replace Mower Blades T Lubrication Chart 0 Check Battery Level R Clean Battery and Terminals 3 4 Check Transaxle Cooling Check Mower Levelness Check V-Belts Check Engine Oil Level Change Engine Oil (with oil filter) 1,2 Change Engine Oil (wi
MAINTENANCE BLADE CARE TRACTOR For best results mower blades must be sharp. Replace worn, bent or damaged blades. Always observe safety rules when performing any maintenance. BRAKE OPERATION CAUTION: Use only a replacement blade approved by the manufacturer of your tractor. Using a blade not approved by the manufacturer of your tractor is hazardous, could damage your tractor and void your warranty.
MAINTENANCE • • Coat terminals with grease or petroleum jelly. Reinstall battery (See “REPLACING BATTERY" in the SERVICE AND ADJUSTMENTS section of this manual). TO CHANGE ENGINE OIL (See Figs. 15 and 16) Determine temperature range expected before oil change. All oil must meet API service classification SG-SL. • Be sure tractor is on level surface. • Oil will drain more freely when warm. • Catch oil in a suitable container. • Remove oil fill cap/dipstick.
MAINTENANCE 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. 17) The fuel filter should be replaced once each season.
SERVICE AND ADJUSTMENTS WARNING: TO AVOID SERIOUS INJURY, BEFORE PERFORMING ANY SERVICE OR ADJUSTMENTS: • Depress brake pedal fully and set parking brake. • Place attachment clutch in “DISENGAGED” position. • Turn ignition key to “STOP” and remove key. • Make sure the blades and all moving parts have completely stopped. • Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with plug. TO REMOVE MOWER (See Fig.
SERVICE AND ADJUSTMENTS • A • ATTACH FRONT LINK (E) - Work from left side of tractor. Insert rod end of link assembly through front hole in tractor front suspension bracket (F). Insert end of link (E) into hole in front mower bracket and secure with washer and retainer spring (J). E B • FIG. 19 ATTACH REAR LIFT LINKS (C) - Lift rear corner of mower and position slot in link assembly over pin (D) on rear mower bracket and secure with washer and retainer spring. J F H FIG.
SERVICE AND ADJUSTMENTS TO LEVEL MOWER • If adjustment is necessary, see step in Visual Adjustment instructions above. • Recheck measurements, adjust if necessary until both sides are equal. FRONT-TO-BACK ADJUSTMENT (See Figs. 25 and 26) IMPORTANT: Deck must be level side-to-side. To obtain the best cutting results, the mower blades should be adjusted so the front tip is 1/8" to 1/2" lower than the rear tip when the mower is in its highest position.
SERVICE AND ADJUSTMENTS BELT INSTALLATION • Install new belt from tractor rear to front, over the steering plate (F) and above clutch brake pedal shaft (G). • Pull belt toward front of tractor and roll belt onto engine pulley (E). • Pull belt toward rear of tractor. Carefully work belt down around transmission cooling fan and onto the input pulley (D). Be sure belt is inside the belt keeper. • Install belt on centerspan idler (C). • Install belt through stationary idler (A) and clutching idler (B).
SERVICE AND ADJUSTMENTS TO CHECK BRAKE TO START ENGINE WITH A WEAK BATTERY (See Fig. 30) If tractor requires more than five (5) feet to stop at highest speed in highest gear on a level, dry concrete or paved surface, then brake must be serviced. You may also check brake by: • Park tractor on a level, dry concrete or paved surface, depress brake pedal all the way down and engage parking brake. • Disengage transmission by placing freewheel control in “transmission disengaged” position.
SERVICE AND ADJUSTMENTS INTERLOCKS AND RELAYS TO REPLACE BATTERY (See Fig. 31) Loose or damaged wiring may cause your tractor to run poorly, stop running, or prevent it from starting. • Check wiring. See electrical wiring diagram in the Repair Parts section. WARNING: Do not short battery terminals by allowing a wrench or any other object to contact both terminals at the same time.
STORAGE 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. ENGINE FUEL SYSTEM IMPORTANT: IT IS IMPORTANT TO PREVENT GUM DEPOSITS FROM FORMING 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.
TROUBLESHOOTING POINTS PROBLEM CAUSE CORRECTION Will not start 1. 2. 3. 4. 5. 6. 7. 8. 1. 2. 3. 4. 5. 6. 7. 8. Out of fuel. Engine not “CHOKED” properly. Engine flooded. Bad spark plug. Weak or dead battery. Dirty air filter. Dirty fuel filter. Water in fuel. 9. 10. Loose or damaged wiring. Carburetor out of adjustment. 9. 10. 11. Engine valves out of adjustment. 11. Fill fuel tank. See “TO START ENGINE” in Operation section. Wait several minutes before attempting to start. Replace spark plug.
TROUBLESHOOTING POINTS PROBLEM CAUSE Engine dies when tractor is shifted into reverse 1. CORRECTION Reverse operation system (ROS) is not "ON" while mower or other attachment is engaged. 1. Turn ignition key to ROS "ON" position. See Operation section. Engine continues to run when operator leaves seat with attachment clutch engaged 1. Faulty operator-safety presence control system. 1. Check wiring, switches and connections. If not corrected, contact an authorized service center/ department.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO. 960 43 00-33 SCHEMATIC SCH10 BATTERY RED SOLENOID STARTER M RED A FUSE AMMETER (OPTIONAL) BLACK WHITE S M B G WHITE A1 L A2 ATTACHMENT CLUTCH (CLUTCH OFF) BLACK CLUTCH/BRAKE (PEDAL UP) GRAY REVERSE SWITCH (NOT IN REVERSE) BLACK BLACK BLACK 2 BLACK 3 BLACK BLACK SEAT SWITCH (NOT OCCUPIED) BLACK BLACK 1 6 GRAY BLACK /WHITE JUNCTION CONNECTOR SHORTING CONNECTOR CHASSIS HARNESS SPARK PLUGS GAP (2 PLUGS ON TWIN CYL.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO. 960 43 00-33 ELECTRICAL KEY NO. 1 2 8 16 21 22 25 26 27 28 29 30 33 34 40 41 42 43 46 55 71 79 87 90 102 PART NO.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO. 960 43 00-33 CHASSIS KEY NO. PART NO.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO. 960 43 00-33 DRIVE KEY NO. PART NO.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO. 960 43 00-33 STEERING ASSEMBLY 57 57 63 63 STEERING TEX?,%'.$ ? KEY NO. PART NO.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO. 960 43 00-33 ENGINE 30!2+ª!22%34%2ª+)4 ENGINE TEX?+OHL? KEY NO. 1 2 9 12 15 18 20 21 28 29 37 42 45 69 79 81 82 PART NO. DESCRIPTION -----Engine Kohler Model No. SV600 532 18 86-55 Muffler 532 19 43-20 Keeper Belt Engine 532 40 54-72 Pulley Engine 532 40 74-89 Tank Fuel 532 19 77-25 Cap Asm 532 40 15-08 Control Throttle 532 41 63-58 Screw #10 x 0.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO. 960 43 00-33 SEAT ASSEMBLY 1 8 8 7 7 41 40 10 21 6 37 37 2 44 43 21 3 seat-tex_7-vgt KEY NO. 1 2 3 6 7 8 10 21 PART NO. 532 19 75-18 532 18 01-66 532 14 06-75 873 80 06-00 532 12 41-81 532 17 18-77 532 19 69-77 532 17 18-52 DESCRIPTION Seat Bracket Pivot Fender Strap, Asm Fender Nut, Lock w/Ins. 3/8-16 unc Spring, Seat Cprsn Bolt 5/16-18 unc x 3/4 w/Sems Pan, Seat Bolt, Shoulder 5/16-18 KEY NO. PART NO.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO. 960 43 00-33 DECALS 2 7 5 6 2 9 2 3 1 10 12 KEY NO. PART NO. 1 2 3 5 6 7 9 532 41 16-58 532 40 28-32 532 41 01-08 532 18 09-41 532 41 00-27 532 40 44-84 532 14 50-05 DESCRIPTION Decal, Warning Decal, Hood Decal, Hood Panel SD Decal, Customer Respons. Decal, Replacement Decal, Steering Wheel Decal, Battery Dnge/Poi KEY NO. PART NO. 10 12 ---- 532 17 05-63 532 16 03-96 532 16 69-60 532 41 08-05 532 41 08-06 KEY NO.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO. 960 43 00-33 MOWER DECK KEY PART NO. NO. DESCRIPTION 1 2 3 6 7 8 11 13 14 15 19 21 23 24 25 26 27 29 30 31 32 33 34 36 37 38 40 42 43 46 47 55 56 57 59 60 Mower Housing Cover Mandrel RH Cover Mandrel LH Arm Suspension Screw #10 x 0.
TRACTOR - - MODEL NUMBER YTH20K46 (96043003301), PRODUCT NO. 960 43 00-33 MOWER LIFT 87 87 7 90 98 89 10 3 97 100 2 88 91 97 91 89 87 lift-tex_5_r3 KEY NO. PART NO. 2 3 7 10 87 88 89 532 19 52-23 532 19 52-31 532 41 15-55 532 19 63-14 532 19 42-09 532 41 07-10 819 19 19-12 KEY NO. 90 91 97 98 100 DESCRIPTION Shaft Asm., Lift Lever Asm., Lift RH Grip, Lever Spring Torsion Pin Cotter 7/16 Bow Tie Lock Spring Lift Assist Washer Clear Zinc PART NO.
SUGGESTED GUIDE FOR SIGHTING SLOPES FOR SAFE OPERATION ONLY RIDE UP AND DOWN HILL, NOT ACROSS HILL 15 DEGREES MAX. WARNING: To avoid serious injury, operate your tractor up and down the face of slopes, never across the face. Do not mow slopes greater than 15 degrees. Make turns gradually to prevent tipping or loss of control. Exercise extreme caution when changing direction on slopes. 1. Fold this page along dotted line indicated above. 2.
SERVICE NOTES 42
SERVICE NOTES 43
532 41 91-66 Rev. 3 10.09.08 SBW Printed in U.S.A.
