Form No. 3353-250 420 and 430 Garden Tractor Model No. 72211—Serial No. 250000001 and Up Model No. 72212—Serial No. 250000001 and Up Register your product at www.Toro.
This spark ignition system complies with Canadian ICES-002 Servicing the Spark Plug......................... 30 Fuel System Maintenance .............................. 31 Draining The Fuel Tank ......................... 31 Servicing the Fuel Filter ......................... 31 Electrical System Maintenance ....................... 32 Servicing the Fuses................................ 32 Servicing the Headlights......................... 32 Servicing the Battery..............................
Model No. Serial No. This manual identifies potential hazards and has safety messages identified by the safety alert symbol (Figure 2 ), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions. Figure 2 1. Safety alert symbol. This manual uses two other words to highlight information. Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention.
Safety • Watch for traffic when operating near or crossing roadways. Use extra care when loading or unloading the machine into a trailer or truck. Always wear safety goggles or safety glasses with side shields when operating mower. Data indicates that operators, age 60 years and above, are involved in a large percentage of riding mower-related injuries. These operators should evaluate their ability to operate the riding mower safely enough to protect themselves and others from serious injury.
Toro Riding Mower Safety to the machine and the mowing activity. Never assume that children will remain where you last saw them. The following list contains safety information specific to Toro products or other safety information that you must know that is not included in the ANSI standards. • Keep children out of the mowing area and under the watchful care of another responsible adult. • Be alert and turn the machine off if children enter the area.
Slope Chart 6
Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. 92-6727 1. Fuel levels 2. Fuel 93-7255 1. 2. 3. 4. 5. 92-7090 1. Push the lever in to ride on 3. the machine. 2. Pull the lever out to push the machine. Do not tow the machine 7 Throttle Fast Slow Continuous variable setting Ignition 6. 7. 8. 9.
99-2986 1. Crushing/dismemberment hazard of bystanders—do not turn the key while children are present; keep children a safe distance from the machine. 99-5340 1. KeyChoice—turn to enable reverse mowing. 93-7256 1. Choke 4. 2. On 5. 3. Off 6. Pull the knob out to start PTO. Pull the knob out to stop PTO. PTO 99-8036 Model 420 1. 2. Lift Up 3. Engine oil pressure Power Take-off (PTO) 104-7628 93-7323 1. 2. Mowing in reverse enabled. 3. Battery 4. 1. Down Read the Operator’s Manual.
Battery Symbols Some or all of these symbols are on your battery. 1. Explosion hazard 6. 2. No re, open ame, or smoking. 7. 3. Caustic liquid/chemical burn hazard 4. Wear eye protection 8. 5. Read the Operator’s Manual. 9. 10. Keep bystanders a safe distance from the battery. Wear eye protection; explosive gases can cause blindness and other injuries Battery acid can cause blindness or severe burns. Flush eyes immediately with water and get medical help fast. Contains lead; do not discard.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Step 1 2 3 4 5 6 7 8 9 Use Qty.
Step Step 1 2 Installing the Steering Wheel Installing the Seat Parts needed for this step: Parts needed for this step: 1 1 1 1 1 2 2 2 2 2 Steering Wheel Lock Washer, 1/2 inch Nut, 1/2 inch Logo Cover Seat Spacer, large inside diameter Spacer, small inside diameter Shoulder bolt Knob Flat washer, 11/32 inch Procedure Procedure 1. Position the front wheels straight ahead. 1. Install the large inside diameter spacer and the 2 shoulder bolts into the rear holes of the seat (Figure 4 ). 2.
4. Route the seat switch wire and connector through the center opening in the seat base. Push the seat switch connector fully into the wire harness connector (Figure 4 ). 5. Secure the seat switch wire cable to the fender opening (Figure 4 ). Step 3 Activating and Installing the Battery Figure 5 1. 2. Parts needed for this step: 2 2 Bolt, 1/4 x 3/4 inch Hex Nut, 1/4 inch Filler caps Upper line 3. Lower line 4.
Figure 7 1. 2. 3. 4. Figure 6 1. Positive Battery Post 2. Negative Battery Post 3. 4. 5. 6. 7. Cap Cotterpin Thin Washer, 3/4 inch 3. Slide wheel onto axle with valve stem in (Figure 7 ). Red (+) Charger Lead Black (-) Charger Lead 4. Wheel end play should be 0 to 0.015 inch (0 to 0.4 mm). Install the shim washers (as required) and thick flat washer (3/4 inch) for spacing on the axle. 9. Install the battery in the tractor and connect the battery cables.
Step 7 Reading the Manual and Viewing the Safety Video Parts needed for this step: 1 1 1 1 1 1 Figure 8 1. 2. Rear wheel Wheel bolts 3. Wheel hub Operator’s Manual Engine Operator’s Manual Parts Catalog Safety Video Registration Card Oil drain hose Procedure • Read the Operator’s Manual. Refer to Checking the Safety Interlock System in Operation, page 19. • Learn how to operate the tractor. Read the Operation section in this manual. • View the safety video.
Step 9 Test Drive the Tractor No Parts Required Procedure 1. Fill the tank with unleaded regular gasoline; Gasoline and Oil in Operation, page 19. Open the fuel shutoff valve and check the fuel hose and fittings for leaks. 2.
Product Overview Figure 9 1. 2. Steering wheel Ignition switch 5. 6. Ground speed selector Throttle lever 9. 10. 3. 4. Brake pedal Parking brake lever 7. 8. Choke lever Power take off (PTO) 11. 12. 16 Cruise control switch Indicator control module/Hourmeter Tilt wheel lever Hood opening 13.
Controls Become familiar with all the controls (Figure 10 for model 420 or Figure 11 for model 430) before you start the engine and operate the machine. Figure 11 Model 430 Figure 10 Model 420 1. Steering wheel 2. Ignition switch 3. Brake pedal 8. 9. 10. 4. 5. 6. 7. 11. 12. 13. Parking brake lever Ground speed selector Throttle lever Choke lever Power take off (PTO) Cruise control switch Indicator control module/Hourmeter Tilt wheel lever Hood opening Attachment lift 1. 2. 3.
light is on it is a reminder; the starter will not crank and turn off the PTO before getting off. • Hourmeter The hourmeter records the number of hours the engine has operated. It is turned on when the ignition switch is in the run or lights positions. Use the times for scheduling regular maintenance. Figure 12 1. 2. 3. Power take off (PTO) Battery Hourmeter 4. 5. Oil pressure Operating-in-Reverse Figure 13 1. 2. 3. 4. Power take off (PTO) Cruise control Battery Hourmeter 5. 6. 7.
Operation In certain conditions, gasoline is extremely flammable and highly explosive. A fire or explosion from gasoline can burn you and others and can damage property. Recommended Gasoline Use UNLEADED Regular Gasoline suitable for automotive use (85 pump octane minimum). Leaded regular gasoline may be used if unleaded regular is not available. • Fill the fuel tank outdoors, in an open area, when the engine is cold. Wipe up any gasoline that spills.
• Cleans the engine while it runs • Eliminates gum-like varnish buildup in the fuel system, which causes hard starting Important: Do not use fuel additives containing methanol or ethanol. Add the correct amount of gas stabilizer/conditioner to the gas. Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline. To minimize the chance of varnish deposits in the fuel system, use fuel stabilizer at all times. Filling the Fuel Tank Figure 14 1.
2. Move the throttle lever between half and full throttle (Figure 15 ). 3. Turn the ignition key to off (Figure 16 ). Operating the Power Take Off (PTO) The power take off (PTO) engages and disengages power to the electric clutch. While the ignition key is in run or lights position and the power take off (PTO) is engaged on, the PTO light, in the Indicator Module, will be on. When this light is on it is a reminder; the starter will not crank and to turn the off PTO before getting off. Figure 15 1.
Understanding the Safety Interlock System pedal to reverse. You should hear an audible click indicating the PTO is deactivated and the PTO light should turn off. 7. With the parking brake released, turn the ignition switch to RUN without starting the engine. Pull the PTO switch to on. Turn the KeyChoice® key and release. The Operating-in-Reverse warning light should illuminate. Move the foot pedal to reverse. The PTO and PTO light on the dash should remain on. Push the PTO switch to off.
To go forward or backward, release the parking brake: refer to Releasing the Parking Brake in Brake Maintenance, page 37 . Place your foot on the traction control pedal and slowly press on the top of the traction control pedal to move forward or on the bottom of the traction control pedal to move backward (Figure 21 ). The farther you move the traction control pedal in either direction, the faster the machine will move in that direction.
Raising Attachments 1. Turn key to the on or run position (Figure 23 ). Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended. 2. Push the lift switch in the up direction to raise the attachment lift (Figure 23 ). This will lift and hold the attachment in the up, or raised position. Always remove the ignition and KeyChoice® keys and set the parking brake when leaving the machine unattended, even if just for a few minutes. Lowering Attachments 1.
Positioning the Tilt Steering Wheel The steering wheel has four tilt locations. Position the steering wheel where you have the best control of the machine and are most comfortable. 1. Lift the tilt lever to release the lock (Figure 26 ). 2. Move the steering wheel to a comfortable position; then release the lever to lock. Figure 24 1. Adjustment knob Using the Headlights Figure 26 The headlights are turned on with a separate position, lights, of the ignition switch (Figure 25 ).
Figure 27 1. 2. Operate position Push position 3. Drive control rod Figure 28 1. Using the Cruise Control Lock-Set 2. Unlock-Off 2. This locks the traction control in position and your foot can then be removed from the traction control. A constant ground speed will be maintained. A three position switch, located on the dash (Figure 28 ), with the functions of: Lock-Set (spring loaded), On and Unlock-Off controls the engagement.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the rst use • Change the engine oil. Before each use or daily • • • • • Check the safety interlock system. Check the engine oil level. Check the battery electrolyte. Clean the air intake screen. Check the brake. Every 25 hours • Clean the foam air cleaner element (more often in dusty dirty conditions). • Check the tire pressure.
Where to Add Grease 2. Clean around the oil dipstick (Figure 31 ) so that dirt cannot fall into the filler hole and damage the engine. 1. Lubricate the front wheels and spindles until grease begins to ooze out of the bearings (Figure 29 ). 3. Unscrew the oil dipstick and wipe the metal end clean (Figure 31 ). 2. Lubricate the front axle pivot (Figure 29 ). 4. Slide the oil dipstick fully into the filler tube, but do not thread it onto the tube (Figure 31 ).
4. Install the replacement oil filter to the adapter. Turn the oil filter clockwise until the rubber gasket contacts the filter adapter, then tighten the filter an additional 3/4 turn (Figure 33 ). 5. Fill the crankcase with the proper type of new oil; refer to Changing and Draining the Engine Oil in Engine Maintenance, page 28 . Servicing the Air Cleaner Foam Element: Clean and oil after every 25 operating hours. Figure 32 Paper Element: Clean after every 50 operating hours.
Cleaning the Foam Element side electrodes is correct before installing the spark plug. Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap. Install a new spark plug(s) if necessary. 1. Wash the foam element in liquid soap and warm water (Figure 34 ). When the element is clean, rinse it thoroughly. 2. Dry the element by squeezing it in a clean cloth (do not wring). Allow the element to air dry.
Figure 37 1. Center electrode insulator 2. Side electrode 3. Figure 38 Air gap (not to scale) 1. Fuel shut-off valve 4. Open the hood. Installing the Spark Plug(s) 5. Squeeze the ends of the hose clamp together and slide it up the fuel line toward the fuel tank (Figure 39 ). 1. Install the spark plug(s). Make sure that the air gap is set correctly. 2. Tighten the spark plug(s) to 16 ft-lb (22 N·m). 3. Push the wire(s) onto the spark plug(s) (Figure 36 ).
Never install a dirty filter if it is removed from the fuel line. 1. Disengage the PTO and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Close fuel shut-off valve at fuel tank (Figure 38 ). 4. Open the hood. 5. Squeeze the ends of the hose clamps together and slide them away from the filter (Figure 39 ). Figure 40 6. Remove the filter from the fuel lines. 7.
Servicing the Battery Warning CALIFORNIA Proposition 65 Warning Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling. Always keep the battery clean and fully charged. Use a paper towel to clean the battery case. If the battery terminals are corroded, clean them with a solution of four parts water and one part baking soda.
4. Remove the right side panel for clearance when removing battery Figure 43 ). 3. Using the bolt and nut, connect the positive (red cover) cable to the positive (+) battery post (Figure 44 ). Slide the rubber cover over the battery post. Remove the screws and lift up the panel to clear the pin and slide panel tabs out from the steering tower. 4. Using the bolt and nut, connect the negative (black) cable to the negative (-) battery post (Figure 44 ). 5.
Adding Water to the Battery Important: Always keep the battery fully charged (1.265 specific gravity). This is especially important to prevent battery damage when the temperature is below 32°F (0°C). The best time to add distilled water to the battery is just before you operate the machine. This lets the water mix thoroughly with the electrolyte solution. 1. Remove the battery from the chassis; refer to Removing the Battery. 1. Remove the battery from the tractor. 2.
Drive System Maintenance Checking the Tire Pressure Maintain the air pressure in the front and rear tires as specified. Check the pressure at the valve stem after every 25 operating hours or monthly, whichever occurs first (Figure 48 ). Check the tires when they are cold to get the most accurate pressure reading. Pressure: 20 psi (138 kPa) front and rear tires Figure 49 1. 2. Figure 48 1. Measure here Flats 3. 4. Jam nut Steering lever 5. The front measurement should be less than the rear, as specified.
Cooling System Maintenance 1. Disengage the PTO, set the parking brake, stop the engine, and remove the key. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Rear wheels must lock and skid when you try to push the tractor forward. Adjustment is required if the wheels turn and do not lock; refer to Adjusting the Brake. 4.
Storage Important: Do not store stabilizer/conditioned gasoline over 90 days. Cleaning and Storage 9. Remove the spark plug(s) and check its condition; refer to Servicing the Spark Plug in Engine Maintenance, page 28 . With the spark plug(s) removed from the engine, pour two tablespoons of engine oil into the spark plug hole. Now use the electric starter to crank the engine and distribute the oil inside the cylinder. Install the spark plug(s) and tighten it to 30 ft-lb (40 N·m).
Troubleshooting Problem Starter does not crank Possible Cause 1. Blade control (PTO) is engaged. 1. Move the blade control (PTO) to disengaged. 2. 3. 4. 5. 2. 3. 4. 5. Parking brake is not on. Operator is not seated. Battery is dead. Electrical connections are corroded or loose. 6. Fuse is blown. 7. Relay or switch is defective. Engine will not start, starts hard, or fails to keep running. Set the parking brake. Sit on the seat. Charge the battery. Check the electrical connections for good contact.
Problem Engine overheats. Abnormal vibration. Machine does not drive. Possible Cause Corrective Action 1. Engine load is excessive. 1. Reduce the ground speed. 2. Oil level in the crankcase is low. 3. Cooling ns and air passages under the engine blower housing are plugged. 2. Add oil to the crankcase. 1. Engine mounting bolts are loose. 1. Tighten the engine mounting bolts. 2. Loose engine pulley, idler pulley, or blade pulley. 3. Engine pulley is damaged. 2. Tighten the appropriate pulley. 3.
Schematics Wiring Schematic (Model 420) (Rev.
Wiring Schematic (Model 430) (Rev.
