Form No. 3398-922 Rev A TimeCutter® MX 4250 or SS 5425 Riding Mower Model No. 74741—Serial No. 316000001 and Up Model No. 74760—Serial No. 316000001 and Up Register at www.Toro.com.
Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of your product ready. Figure 1 identifies the location of the model and serial numbers on the product. Write the numbers in the space provided. WARNING CALIFORNIA Proposition 65 Warning This product contains a chemical or chemicals known to the State of California to cause cancer, birth defects, or reproductive harm.
Contents Cleaning ...................................................................46 Washing the Underside of the Mower ........................46 Storage ........................................................................47 Cleaning and Storage ..............................................47 Troubleshooting ...........................................................49 Schematics ...................................................................51 Safety .........................................
Safety remove the key before cleaning the machine, removing the grass catcher, or unclogging the discharge chute. • Operate the machine only in daylight or good artificial To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety-alert symbol, which means Caution, Warning, or Danger—"personal safety instruction." Failure to comply with the instruction may result in personal injury or death. light.
Service • Do not try to stabilize the machine by putting your foot on the ground. Safe Handling of Gasoline • Do not mow near drop-offs, ditches, steep banks, or • Never allow children to operate the machine. To avoid personal injury or property damage, use extra care when handling gasoline and other fuels. They are flammable and the vapors are explosive. • Extinguish all cigarettes, cigars, pipes, and other sources of ignition. • Use only an approved container.
• Check for proper brake operation frequently. Adjust and service as required. • Maintain or replace safety and instruction decals as necessary. • Use only genuine Toro replacement parts to ensure that original standards are maintained. Toro Riding Mower Safety The following list contains safety information specific to Toro products or other safety information that you must know that may not be included in the ANSI standards.
Slope Indicator G011841 Figure 3 This page may be copied for personal use. 1. The maximum slope you can safely 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. Example of how to compare slope with folded edge.
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. 93-7009 1. Warning—do not operate the mower with the deflector up or removed; keep the deflector in place. 106-8717 2. Cutting/dismemberment hazard of hand or foot, mower blade—stay away from moving parts. 1. Read the instructions before servicing or performing maintenance. 2.
119-8815 1. Parking position 4. Neutral 2. Fast 3. Slow 5. Reverse 119-8871 For Models with 42-inch Decks 1. Height of cut 119-8870 For Models with 54-inch Decks 1. Height of cut 121-2989 1. Bypass lever position for pushing the machine 2. Bypass lever position for operating the machine Manufacturer's Mark 1. Indicates the blade is identified as a part from the original machine manufacturer.
Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystanders a safe distance 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. Wear eye protection 8. Battery acid can cause blindness or severe burns. 9. Flush eyes immediately with water and get medical help fast. 5. Read the Operator's Manual. 132-0872 10.
121-0772 For Models with 42-inch Decks 1. Fast 2. Continuous-variable setting 4. Choke 5. Power takeoff (PTO), Blade-control switch 3.
1-0773 For Models with 54-inch Decks 1. Fast 2. Continuous-variable setting 4. Choke 5. Power takeoff (PTO), blade-control switch 3. Slow 131-3947 1. Trim—slow 2. Tow—medium 3.
2-0869 1. Warning—read the Operator's Manual. 5. Ramp tipping 3. Cutting hazard of hand, hazard—when loading mower blade; pinching onto a trailer, do not use hazard of hand, belt—keep dual ramps; only use a hands and feet away from single ramp wide enough moving parts; keep all for the machine and that guards and shields in place. has an incline less than 15 degrees; back up the ramp (in reverse) and drive forward off the ramp. 2.
Product Overview 5 3 6 9 10 7 2 1 11 8 g028166 2 12 4 Figure 4 1. Deflector 4. Height-of-cut lever 7. Footrest 10. Engine 2. Rear drive wheel 5. Operator seat 8. Fuel-tank cap 11. Engine guard 3. Motion-control levers 6. Smart Speed™ lever 9. Control panel 12. Front caster wheel Controls Ignition Switch Become familiar with all of the controls in Figure 4 and Figure 5 before you start the engine and operate the machine. The ignition switch has 3 positions: OFF, RUN, and START.
Motion-Control Levers and Park Position Height-of-Cut Lever 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 18). The motion-control levers are speed-sensitive controls of independent wheel motors.
Operation DANGER In certain conditions during fueling, static electricity can be released, causing a spark that can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can damage property. • Always place gasoline containers on the ground away from your vehicle before filling.
Think Safety First of varnish deposits in the fuel system, use fuel stabilizer at all times. Please read all safety instructions and symbols in the safety section. Knowing this information could help you or bystanders avoid injury. Filling the Fuel Tank Note: Ensure that the engine is shut off and the motion-control levers are in the PARKED position. DANGER Note: You can use the fuel window to verify the presence of gasoline before filling the tank (Figure 8).
Testing the Safety-Interlock System CAUTION This machine produces sound levels in excess of 85 dBA at the operator’s ear and can cause hearing loss through extended periods of exposure. Test the safety-interlock system before you use the machine each time. If the safety system does not operate as described below, have an Authorized Service Dealer repair the safety system immediately. Wear hearing protection when operating this machine. 1.
Starting the Engine Operating the Blades Note: A warm or hot engine may not require choking. The blade-control switch engages and disengages power to the mower blades. This switch controls power to any attachments that draw power from the engine, including the mower deck and cutting blades. 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.
2. Move the throttle lever to the FAST position. Driving Forward 3. Turn the ignition key to the OFF position and remove the key. Note: Always use caution when backing up and turning. 1. Move the levers to the center, unlocked position. 2. To go forward, slowly push the motion-control levers forward (Figure 15). Driving the Machine The drive wheels turn independently, powered by hydraulic motors on each axle.
Driving Backward To change speeds, do the following: 1. Move the motion-control levers to neutral and outward to the PARK position. Note: Always use caution when backing up and turning. 1. Move the levers to the center, unlocked position. 2. Disengage the blade-control switch. 2. To go backward, look behind you and down, as you slowly pull the motion-control levers rearward (Figure 16). 3. Adjust the lever to the desired position. The following are only recommendations for use.
Stopping the Machine Adjusting the Anti-Scalp Rollers To stop the machine, move the motion-control levers to NEUTRAL and outward to the PARK position, disengage the blade-control switch, ensure that the throttle is in the FAST position, and turn the ignition key to OFF. Remove the key from the ignition switch. Whenever you change the height of cut, adjust the height of the anti-scalp rollers. Note: Adjust the anti-scalp rollers so that the rollers do not touch the ground in normal, flat mowing areas. 1.
Adjusting the Motion-Control Levers 4. Move the bypass levers forward through the key hole and down to lock them in place (Figure 22). Adjusting the Height 5. Move the motion-control levers inward to the NEUTRAL position and turn the ignition key to the RUN position. Note: Do this for each lever. You can adjust the motion-control levers higher or lower for maximum comfort (Figure 21). A Note: Do not start the machine. B Note: You can now push the machine by hand.
Using the Grass Deflector Transporting the Machine The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. Use a heavy-duty trailer or truck to transport the machine. Ensure that the trailer or truck has all necessary brakes, lighting, and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you, your family, pets, or bystanders avoid injury.
Important: Do not use narrow individual ramps for each side of the machine. 1 Ensure the ramp is long enough so that the angle with the ground does not exceed 15 degrees (Figure 25). On flat ground, this requires a ramp to be at least 4 times as long as the height of the trailer or truck bed to the ground. A steeper angle may cause mower components to get caught as the machine moves from the ramp to the trailer or truck. Steeper angles may also cause the machine to tip or lose control.
Long Grass Operating Tips If the grass is ever allowed to grow slightly longer than normal, or if it contains a high degree of moisture, raise the cutting height higher than usual and cut the grass at this setting. Then cut the grass again using the lower, normal setting. Fast Throttle Setting For best mowing and maximum air circulation, operate the engine at the FAST position.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. 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 engine-oil level. Clean the air-intake screen. Check the cutting blades. Inspect the grass deflector for damage. After each use • Clean the mower-deck housing.
Premaintenance Procedures Lubrication Raising the Seat Service Interval: Every 25 hours—Grease all lubrication points. Make sure that the motion-control levers are locked in the PARK position. Lift the seat forward. Grease Type: No. 2 lithium grease Greasing the Bearings 1. Park the machine on a level surface and disengage the blade-control switch. You can access the following components by raising the seat: • Serial plate 2.
Engine Maintenance 5. Remove the foam element from the paper element (Figure 29). Servicing the Air Cleaner Note: Service the air cleaner more frequently (every few hours) if operating conditions are extremely dusty or sandy. Removing the Elements 1. Park the machine on a level surface and disengage the blade-control switch (PTO). g027802 Figure 29 2. Engage the parking brake, shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.
Servicing the Engine Oil A B C D Oil Type: Detergent oil (API service SF, SG, SH, SJ, or SL) Crankcase Capacity: 2.0 L (67.6 oz) Viscosity: See the table below. SAE 30 E SAE 5W -30, 10W -30 SYNTHETIC 5W -20, 5W -30, 10W -30 F g029683 G H Figure 30 Checking the Engine-Oil Level Service Interval: Before each use or daily I Note: Check the oil when the engine is cold. J K WARNING Contact with hot surfaces may cause personal injury.
4. Drain the engine oil (Figure 32). 5. Change the engine-oil filter (Figure 33). A B C D E F g027799 A B C 3/4 g027477 D E Figure 33 Note: Ensure that the oil-filter gasket touches the engine and then turn the filter an extra 3/4 turn.
Servicing the Spark Plug 6. 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 34). A C Service Interval: Every 100 hours/Yearly (whichever comes first)—Check the spark plug(s). B Every 200 hours/Every 2 years (whichever comes first)—Replace the spark plug(s). Make sure that the air gap between the center and side electrodes is correct before installing the spark plug.
Checking the Spark Plug Cleaning the Cooling System 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. Clean the air-intake screen from grass and debris before each use. 1. Disengage the blade-control switch and engage the parking brake. 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. 2.
Fuel System Maintenance DANGER 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. g027939 A • Perform any fuel-related maintenance when the engine is cold. Do this outdoors in an open area. Wipe up any gasoline that spills. • Never smoke when draining gasoline and stay away from an open flame or where a spark may ignite the gasoline fumes.
Electrical System Maintenance WARNING Incorrect battery-cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. WARNING • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. 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.
Charging the Battery Servicing the Fuses Service Interval: Before storage—Charge the battery and disconnect the battery cables. The electrical system is protected by fuses. It requires no maintenance; however, if a fuse blows, check the component or circuit for a malfunction or short. 1. Remove the battery from the chassis; refer to Removing the Battery (page 35). Fuse type: 2. Charge the battery for a minimum of 1 hour at 6 to 10 A.
Releasing the Electric Brake Drive System Maintenance The electric brake releases by manually rotating the link arms forward. Once the electric brake is energized, the brake resets. Checking the Tire Pressure Service Interval: Every 25 hours—Check tire pressure. Maintain the air pressure in the front and rear tires as specified. Uneven tire pressure can cause an uneven cut. Check the pressure at the valve stem (Figure 42). Check the tires when they are cold to get the most accurate pressure reading.
Mower Maintenance Servicing the Cutting Blades Maintain sharp blades throughout the cutting season, because sharp blades cut cleanly without tearing or shredding the grass blades. Tearing and shredding the grass turns it brown at the edges, which slows growth and increases the chance of disease. Figure 44 Check the cutting blades daily for sharpness and for any wear or damage. File down any nicks and sharpen the blades as necessary.
3. Measure from the tip of the blade to the flat surface (Figure 46). 1 1 G014973 3 2 G014973 3 Figure 48 2 1. Opposite blade edge (in position for measuring) Figure 46 2. Level surface 3. Second measured distance between blade and surface (B) 1. Blade (in position for measuring) 2. Level surface 3. Measured distance between blade and the surface (A) A.
Removing the Blades Replace a blade if it hits a solid object, if the blade is out of balance, or if the blade is bent. For best performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made by other manufacturers may result in non-conformance with safety standards. Figure 51 1. Blade 1. Hold the blade end using a rag or thickly padded glove. 2. Balancer 3. Repeat this procedure until the blade is balanced. 2.
1 2 G009682 3 3 2 4 4 Figure 52 Mower Decks with 2 Blades 1. Blades side to side 3. Outside cutting edges 2. Sail area of blade 4. Measure from the tip of the blade to the flat surface here. Figure 54 1. Hanger bracket 2. Side locking nut G005278 2 9. Check the side-to-side adjustments again. Repeat this procedure until the measurements are correct. 10. Continue leveling the deck by checking the front-to-rear blade slope; refer to Adjusting the Front-to-Rear Blade Slope (page 42).
Adjusting the Front-to-Rear Blade Slope Note: If the front blade tip is not 1.6 to 7.9 mm (1/16 to 5/16 inch) lower than the rear blade tip, adjust the front locknut. 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 using the following procedure: 1. Park the machine on a level surface and disengage the blade-control switch. 2.
Removing the Mower 1. Park the machine on a level surface and disengage the blade-control switch. 2. Move the motion-control levers outward to the PARK position, shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 2 3. Lower the height-of-cut lever to the lowest position. 2 3 4. Remove the hairpin cotter from the front support rod and remove the rod from the deck bracket (Figure 58). 1 G005077 Figure 59 1. Mower deck 2. Hanger bracket 3.
Replacing the Grass Deflector 9. Secure the rear end of the rod into the mower with a nut (3/8 inch) as shown in Figure 60. Service Interval: Before each use or daily—Inspect the grass deflector for damage. Important: The grass deflector must be spring-loaded and in the down position. Lift the deflector up to test that it snaps to the full down position. WARNING An uncovered discharge opening could allow the lawn mower to throw objects at you or bystanders, resulting in serious injury.
Mower Belt Maintenance 8. Install the pulley covers (Figure 61). 2 7 3 1 Inspecting the Belts 5 Service Interval: Every 25 hours—Check the belts for wear or cracks. 7 Check the belts for cracks, frayed edges, burn marks, or any other damage. Replace damaged belts. Replacing the Mower Belt The signs of a worn belt include squealing while the belt is rotating, blades slipping while cutting grass, and frayed edges, burn marks, and cracks on the belt.
3 Cleaning 5 2 1 Washing the Underside of the Mower 3 Service Interval: After each use—Clean the mower-deck housing. Wash the underside of the mower after each use to prevent grass buildup for improved mulch action and clipping dispersal. Important: You can wash the machine with mild detergent and water. Do not pressure wash the machine. Avoid excessive use of water, especially near the control panel, under the seat, and around the engine, hydraulic pumps, and motors. 4 1.
Storage 8. Turn the water off and remove the coupling from the washout fitting. Cleaning and Storage Note: If the mower is not clean after a single washing, soak it and let it stand for 30 minutes. Then, repeat the process. 1. Disengage the blade-control switch, move the motion-control levers outward to the PARK position, shut off the engine, and remove the key. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine.
to crank the engine and distribute the oil inside the cylinder. Install the spark plug(s). Do not install the wire on the spark plug(s). 11. Clean any dirt and chaff from the top of the mower. 12. Scrape any heavy buildup of grass and dirt from the underside of the mower, then wash the mower with a garden hose. 13. Check the condition of the drive and mower belts. 14. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is worn or damaged. 15.
Troubleshooting Problem The engine overheats. Possible Cause 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. Remove the obstruction from the cooling fins and air passages. 5. Dirt, water, or stale fuel is in the fuel system. The starter does not crank.
Problem There is an abnormal vibration. The cutting height is uneven. Possible Cause 1. The engine-mounting bolts are loose. 1. Tighten the engine-mounting bolts. 2. The engine pulley, idler pulley, or blade pulley is loose. 3. The engine pulley is damaged. 4. The cutting blade(s) is/are bent or unbalanced. 5. A blade-mounting bolt is loose. 6. A blade spindle is bent. 2. Tighten the appropriate pulley. 5. Tighten the blade-mounting bolt. 6. Contact an Authorized Service Dealer. 1.
Schematics Electrical Diagram (Rev.
TimeCutter and TITAN Mowers The Toro Warranty Limited Warranty (see warranty periods below) Conditions and Products Covered The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair the Toro Products listed below if defective in materials or workmanship. 1. Contact any Authorized Toro Service Dealer to arrange service at their dealership. To locate a dealer convenient to you, access our web site at www.Toro.com.