Form No. 3433-620 Rev C TimeCutter® 4225 Riding Mower Model No. 75742—Serial No. 400000000 and Up Model No. 75742TA—Serial No. 400000000 and Up Register at www.Toro.com.
Introduction Gross or Net Torque: The gross or net torque of this engine was laboratory rated by the engine manufacturer in accordance with the Society of Automotive Engineers (SAE) J1940 or J2723. As configured to meet safety, emission, and operating requirements, the actual engine torque on this class of mower will be significantly lower. Please refer to the engine manufacturer’s information included with the machine.
Electrical System Safety ................................... 36 Servicing the Battery......................................... 36 Servicing the Fuses .......................................... 38 Drive System Maintenance .................................. 38 Checking the Tire Pressure............................... 38 Releasing the Electric Brake ............................. 38 Adjusting the Tracking ...................................... 39 Belt Maintenance ................................................
General Safety Safety This machine is capable of amputating hands and feet and of throwing objects. Toro designed and tested this lawn mower to offer reasonably safe service; however, failure to comply with safety instructions may result in injury or death. The following instructions are from ANSI standard B71.1-2017. Safety Alert Symbol • Read, understand, and follow all instructions and warnings in the Operator’s Manual and other training material, on the machine, engine, and attachments.
Slope Indicator g011841 Figure 4 You may copy this page for personal use. 1. The maximum slope you can operate the machine on is 15 degrees. Use the slope chart to determine the degree of slope of hills before operating. Do not operate this machine on a slope greater than 15 degrees. Fold along the appropriate line to match the recommended slope. 2. Align this edge with a vertical surface, a tree, building, fence pole, etc. 3.
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 missing. decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery. 1. Explosion hazard 6. Keep bystanders away from the battery. 2. No fire, open flame, or smoking 7. Wear eye protection; explosive gases can cause blindness and other injuries. 3. Caustic liquid/chemical burn hazard 4.
decal131-1097 131-1097 1. Oil drain decal139-2388 139-2388 1. Slow 2. Hauling 3. Fast decal132-0872 132-0872 1. Thrown object hazard—keep bystanders away from the machine. 3. Severing hazard of hand or foot—keep away from moving parts. 2. Thrown object hazard, raised baffle—do not operate the machine with an open deck; use a bagger or a baffle. 4. Entanglement hazard—keep away from moving parts; keep all guards and shields in place. decal139-2391 139-2391 1. Fast decal138-2456 138-2456 1.
decal139-2394 139-2394 1. Traction controls 2. Fast 3. Slow 4. Neutral 5. Reverse 6. Parking brake decal139-2395 139-2395 decal139-2392 1. Parking brake 4. Neutral 2. Fast 3. Slow 5. Reverse 6. Traction controls 139-2392 decal135-3295 135-3295 Note: This machine complies with the industry standard stability test in the static lateral and longitudinal tests with the maximum recommended slope indicated on the decal.
Product Overview g293302 Figure 5 1. Engine 4. Motion-control levers 7. Deflector 2. Operator seat 5. Rear drive wheel 8. Smart Speed™ lever 3. Fuel-tank cap 6. Front caster wheels 9. Height-of-cut lever 9 10.
Controls Motion-Control Levers Become familiar with all the controls before you start the engine and operate the machine. Use the motion-control levers to drive the machine forward, reverse, and turn either direction (Figure 5). Control Panel Park Position Move the motion-control levers outward from the center to the PARK position when exiting the machine (Figure 18). Always position the motion-control levers into the PARK position when you stop the machine or leave it unattended.
Height-of-Cut Lever Operation Use the height-of-cut lever to lower and raise the deck from the seated position. Moving the lever up (toward you) raises the deck from the ground and moving the lever down (away from you) lowers the deck toward the ground. Adjust the height-of-cut only while the machine is not moving (Figure 22). Note: Determine the left and right sides of the machine from the normal operating position.
Pre-Start Fuel Safety Fill fuel tank on level ground. See Fuel Recommendations in the Specifications section for additional gasoline information. Use extreme care when handling fuel. Do Not add oil to gasoline. In certain conditions gasoline is extremely flammable and vapors are explosive. DANGER Do Not overfill fuel tank. Fill the fuel tank to the bottom of the filler neck. The empty space in the tank allows gasoline to expand.
flame or any enclosed area where open pilot lights or heat appliances are present. DANGER In certain conditions during fueling, static electricity can be released causing a spark which can ignite gasoline vapors. A fire or explosion from gasoline can burn you and others and cause property damage. Adding Fuel • Always place gasoline containers on the ground away from your vehicle before filling.
Understanding the Safety-Interlock System The safety-interlock system is designed to prevent the engine from starting unless: • The blade-control switch (PTO) is disengaged. • The motion-control levers are in the PARK position. The safety-interlock system also is designed to shut off the engine whenever the control levers are out of the PARK position and you rise from the seat. Testing the Safety-Interlock System Test the safety-interlock system before you use the machine each time.
Positioning the Seat Adjusting the Tilt The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable (Figure 9). You can adjust the motion-control levers forward or rearward for your comfort. 1. Loosen the upper bolt holding the control lever to the control-arm shaft. 2. Loosen the lower bolt just enough to pivot the control lever forward or rearward (Figure 10). 3.
• Lightning can cause severe injury or death. If • • • • • • • changing directions. Do Not mow in reverse unless absolutely necessary. lightning is seen or thunder is heard in the area, Do Not operate the machine; seek shelter. Use extra care while operating with accessories or attachments, such as grass collection systems. These can change the stability of the machine and cause a loss of control. Follow directions for counter weights if required.
drive wheels may result in sliding and a loss of braking and steering. The machine can slide even if the drive wheels are stopped. – Use an angle indicator to determine the approximate slope angle of the area. – Never operate on slopes greater than 15 degrees. • Remove or mark obstacles such as ditches, holes, ruts, bumps, rocks or other hidden hazards. Tall grass can hide obstacles. Uneven terrain could overturn the machine.
Operating the Mower Operating the Throttle Blade-Control Switch (PTO) You can move the throttle control between the FAST and SLOW positions (Figure 15). The blade-control switch (PTO) starts and stops the mower blades and any powered attachments. Always use the FAST position when engaging the PTO. Engaging the Blade-Control Switch (PTO) g295539 Figure 15 g008945 Figure 12 Note: Always engage the blades with the throttle in Operating the Choke the FAST position (Figure 13).
Starting the Engine CAUTION Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. Note: A warm or hot engine may not require choking. Important: Do not engage the starter for more than 5 seconds at a time. Engaging the starter motor for more than 5 seconds can damage the starter motor. If the engine fails to start, wait 10 seconds before operating the engine starter again.
Driving the Machine Driving Backward The drive wheels turn independently, powered by hydraulic motors on each axle. You can turn 1 side in reverse while you turn the other forward, causing the machine to spin rather than turn. This greatly improves the machine maneuverability but may require sometime for you to adapt to how it moves. 1. Move the levers to the center, unlocked position. 2. To go backward, slowly pull the motion-control levers rearward (Figure 20).
2. Disengage the blade-control switch. 3. Adjust the lever to the desired position. Using the Side Discharge The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. The following are only recommendations for use. Adjustments vary by grass type, moisture content, and the height of the grass.
Adjusting the Height of Cut Adjusting the Anti-Scalp Rollers Note: The transport position is the highest height-of-cut position or cutting height at 114 mm (4-1/2 inches) as shown in Figure 22. Whenever you change the height of cut, adjust the height of the anti-scalp rollers. Height of cut is controlled by the lever located to the right of the operating position (Figure 22). Note: Adjust the anti-scalp rollers so that the rollers do not touch the ground in normal, flat mowing areas. 1.
Operating Tips drop onto your lawn. To avoid this, move onto a previously cut area with the blades engaged or you can disengage the mower deck while moving forward. Using the Fast Throttle Setting For best mowing and maximum air circulation, operate the engine at the FAST position. Air is required to thoroughly cut grass clippings, so do not set the height-of-cut so low as to totally surround the mower deck in uncut grass.
After Operation WARNING Driving on the street or roadway without turn signals, lights, reflective markings, or a slow moving vehicle emblem is dangerous and can lead to accidents causing personal injury. After Operation Safety General Safety • Park machine on level ground, disengage drives, • • Do not drive machine on a public street or roadway. set parking brake, stop engine, remove key or disconnect spark plug wire.
WARNING Loading a machine onto a trailer or truck increases the possibility of tip-over and could cause serious injury or death. • Use extreme caution when operating a machine on a ramp. • Use only a full-width ramp; do not use individual ramps for each side of the machine. • Do not exceed a 15-degree angle between the ramp and the ground or between the ramp and the trailer or truck. • Ensure the length of ramp is at least four times (4X) as long as the height of the trailer or truck bed to the ground.
motion-control levers outward to the PARK position. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Locate the bypass levers on the frame on both sides of the engine. 4. Move the bypass levers forward through the key hole and down to lock them in place (Figure 27). Note: Do this for each lever. WARNING Contact with hot surfaces may cause personal injury.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. WARNING Maintenance Safety Removal or modification of original equipment, parts and/or accessories may alter the warranty, controllability, and safety of the machine. Unauthorized modifications to the original equipment or failure to use original Toro parts could lead to serious injury or death.
WARNING Contact with moving parts or hot surfaces may cause personal injury. Keep your fingers, hands, and clothing clear of rotating components and hot surfaces. • Check all bolts frequently to maintain proper tightness. Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 5 hours • Change the engine oil and filter. Before each use or daily • • • • • • Check the safety-interlock system. Check the air cleaner for dirty, loose, or damaged parts.
Pre-Maintenance Procedures Lubrication Raising the Machine Service Interval: Every 25 hours—Grease the caster wheel bearings. Use jackstands to support the machine when you raise it. Grease Type: No. 2 lithium grease Greasing the Bearings 1. Supporting the machine on the lower muffler shield (Figure 28) may damage the shield and cause the machine to fall, injuring you or bystanders.
Engine Maintenance Engine Safety • Shut off the engine before checking the oil or adding oil to the crankcase. • Keep your hands, feet, face, clothing, and other body parts away the muffler and other hot surfaces. g027800 Servicing the Air Cleaner Service Interval: Before each use or daily Note: Service the air cleaner more frequently (every few hours) if operating conditions are extremely dusty or sandy. Removing the Foam and Paper Elements 1.
Installing the Air Cleaner Servicing the Foam Air-Cleaner Element 1. Note: Ensure that you do not damage the elements. Service Interval: Every 25 hours/Monthly (whichever comes first)—Clean the air-cleaner foam element (more often in dusty, dirty conditions). Every 100 hours or yearly, whichever comes first—Replace the air-cleaner foam element (more often in dusty, dirty conditions). 1. Wash the foam element in liquid soap and warm water. When the element is clean, rinse it thoroughly. 2.
Servicing the Engine Oil Engine-Oil Specifications Oil Type: Detergent oil (API service SF, SG, SH, SJ, or SL) Crankcase Capacity: 2.4 L (81 fl oz) with oil filter Viscosity: See the table below. g029683 Figure 33 Checking the Engine-Oil Level Service Interval: Before each use or daily Note: Check the oil when the engine is cold. Important: If you overfill or underfill the engine crankcase with oil and run the engine, you may damage the engine. 1. 2.
5. Change the engine-oil filter (Figure 36). Note: Ensure that the oil-filter gasket touches the engine and then turn the filter an extra 3/4 turn. g027799 g027477 Figure 36 6. g029570 Figure 35 33 Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil to bring it to the Full mark (Figure 37).
g027478 Figure 38 Checking the Spark Plug Important: Do not clean the spark plug(s). Always replace the spark plug(s) when it has a black coating, worn electrodes, an oily film, or cracks. If you see light brown or gray on the insulator, the engine is operating properly. A black coating on the insulator usually means the air cleaner is dirty. g193530 Figure 37 7. Set the gap to 0.75 mm (0.03 inch). Dispose of the used oil at a recycling center.
Cleaning the Cooling System 1. Fuel System Maintenance Park the machine on a level surface, disengage the blade-control switch, and move the motion-control levers outward to the PARK position. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Remove the air filter from the engine. 4. Remove the engine shroud. 5. To prevent debris entering the air intake, install the air filter to the filter base. 6.
Electrical System Maintenance Electrical System Safety • Disconnect the battery before repairing the g027939 machine. Disconnect the negative terminal first and the positive last. Connect the positive terminal first and the negative last. • Charge the battery in an open, well-ventilated area, away from sparks and flames. Unplug the charger before connecting or disconnecting the battery. Wear protective clothing and use insulated tools.
Charging the Battery WARNING Incorrectly removing the cables from battery could damage the machine and cables, causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. Service Interval: Before storage—Charge the battery and disconnect the battery cables. • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. 1. Remove the battery from the chassis; refer to Removing the Battery (page 36). 2.
Servicing the Fuses Drive System Maintenance The electrical system is protected by fuses. It requires no maintenance; however, if a fuse blows, check the component/circuit for a malfunction or short. Checking the Tire Pressure Fuse type: • Main—F1 (25 A, blade-type) Service Interval: Every 25 hours—Check tire pressure. • Charge Circuit—F2 (15 A, blade-type) 1. Park the machine on a level surface, disengage the blade-control switch, and move the motion-control levers outward to the PARK position. 2.
g294417 Figure 46 1. Brake-link arm on the electric brake control module 2. Left, rear tire Adjusting the Tracking When driving the machine forward full speed across a flat, level surface, if the machine pulls to 1 side, adjust the tracking. If the machine pulls to the left, adjust the right motion-control lever; if the machine pulls to the right, adjust the left motion-control lever. g294926 Figure 47 Note: You can only adjust the tracking for driving 1. Bolt forward. 1.
Belt Maintenance WARNING The spring is under tension when installed and can cause personal injury. Inspecting the Belts Be careful when removing the belt. Service Interval: Every 25 hours—Check the belts for wear or cracks. Replace the belt if it is worn. The signs of a worn belt include squealing while the belt is rotating; the blades slipping while cutting grass; and frayed edges, burn marks, and cracks on the belt.
Mower Maintenance Blade Safety A worn or damaged blade can break, and a piece of the blade could be thrown toward you or bystanders, resulting in serious personal injury or death. Trying to repair a damaged blade may result in discontinued safety certification of the product. g006530 Figure 50 • Inspect the blades periodically for wear or damage. • Use care when checking the blades. Wrap the blades or wear gloves, and use caution when servicing the blades.
g014973 g014973 Figure 52 Figure 54 1. Blade (in position for measuring) 1. Opposite blade edge (in position for measuring) 2. Level surface 3. Measured distance between blade and the surface (A) 2. Level surface 3. Second measured distance between blade and surface (B) 4. Rotate the same blade 180 degrees so that the opposing cutting edge is now in the same position (Figure 53). A.
Installing the Blades 1. Install the blade onto the spindle shaft (Figure 55). Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. g027833 3. Curved washer 4. Blade bolt 3. Torque the blade bolt to 81 to 108 N∙m (60 to 80 ft-lb). Check to ensure that the mower deck is level any time you install the mower or when you see an uneven cut on your lawn.
g294044 g294046 Figure 58 1. Blades side to side Figure 59 3. Measure from the tip of the blade to the flat surface here. 1. Blades front to rear 2. Outside cutting edges 2. Outside cutting edges Checking the Front-to-Rear Blade Slope Leveling from Side to Side Check the front-to-rear blade level any time you install the mower. If the front of the mower is more than 7.9 mm (5/16 inch) lower than the rear of the mower, adjust the blade level. 1.
g294195 Figure 62 g294196 Figure 60 1. Wood block—6.6 cm (2-5/8 inches) thick 6. 2. Wood block—7.3 cm (2-7/8 inches) thick Remove the hairpin cotter and washer from the lower lift-arm pin (Figure 61). g294197 Figure 61 1. Height-of-cut plate 3. Washer 2. Hairpin cotter 7. Rotate the height-of-cut plate to a different hole so that it supports the weight of the mower deck after you install the plate (Figure 62). 45 8. Install the washer and hairpin cotter (Figure 62). 9.
Removing the Mower Deck Adjusting the Front-to-Rear Blade Slope 1. 1. Park the machine on a level surface, disengage the blade-control switch (PTO), and move the motion-control levers outward to the PARK position. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Lower the height-of-cut lever to the lowest position. 4. Remove the hairpin cotter from the front support rod, and remove the rod from the deck bracket (Figure 64).
8. Attach the front support rod to the mower deck with the clevis pin and hairpin cotter (Figure 64). 9. Install the mower belt onto the engine pulley; refer to Replacing the Mower Belt (page 40). Replacing the Grass Deflector Service Interval: Before each use or daily—Inspect the grass deflector for damage. WARNING An uncovered discharge opening could allow the machine to throw objects toward you or bystanders, resulting in serious injury. Also, contact with the blade could occur.
Cleaning 6. Place the spring on the rod, with end wires down, and between the grass deflector brackets. 7. Slide the rod through the second grass-deflector bracket (Figure 66). 8. Insert the rod at the front of the grass deflector into the short standoff on the deck. Washing the Underside of the Mower Deck 9. Secure the rear end of the rod into the mower with a nut (3/8 inch) as shown in Figure 66. Service Interval: After each use—Clean the mower-deck housing.
7. Disengage the blade-control switch, shut off the engine, remove the key, and wait for all moving parts to stop. 8. Turn the water off and remove the coupling from the washout fitting. Storage Storage Safety • Let the engine cool before storing the machine. • Do not store the machine or fuel near flames or Note: If the mower is not clean after 1 washing, drain the fuel indoors. soak it and let it stand for 30 minutes. Then repeat the process. 9.
Storing the Battery use an alcohol-based stabilizer (ethanol or methanol). B. C. D. Run the engine to distribute conditioned fuel through the fuel system for 5 minutes. 2. Let the battery rest for 24 hours, then check the battery voltage. Note: If the battery voltage is below 12.6 V, repeat steps 1 and 2. Dispose of fuel properly. Recycle the fuel according to local codes. stabilizer/conditioner longer than the duration recommended by the fuel-stabilizer manufacturer.
Troubleshooting Problem Possible Cause The fuel tank is showing signs of collapsing or the machine is frequently showing signs of running out of fuel. 1. The air-cleaner paper element clogged. The engine overheats. 1. The engine load is excessive. 1. Reduce the ground speed. 2. The oil level in the crankcase is low. 3. The cooling fins and air passages under the engine-blower housing are plugged. 4. The air cleaner is dirty. 2. Add oil to the crankcase. 3.
Problem The machine does not drive. The machine vibrates abnormally. The cutting height is uneven. The blades do not rotate. Possible Cause Corrective Action 1. The bypass valves are open. 1. Close the tow valves. 2. The traction belts are worn, loose, or broken. 3. The traction belts are off the pulleys. 4. The transmission has failed. 2. Contact an Authorized Service Dealer. 1. The cutting blade(s) is/are bent or unbalanced. 1. Install new cutting blade(s). 2. The blade mounting bolt is loose.
Schematics g307974 Electrical Diagram 139-2356 (Rev.
Notes:
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