Form No. 3398-922 Rev B 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.
injury and product damage. You are responsible for operating the product properly and safely. 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. The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. You may contact Toro directly at www.Toro.
Contents Replacing the Mower Belt ................................. 48 Cleaning .............................................................. 49 Washing the Underside of the Mower................ 49 Storage ................................................................... 50 Cleaning and Storage ....................................... 50 Troubleshooting ...................................................... 52 Schematics ............................................................. 54 Safety ..........
Safety • Be alert, slow down and use caution when making turns. Look behind and to the side before changing directions. 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. • Never leave a running machine unattended.
• Follow the attachment manufacturer's • Avoid sudden starts when mowing uphill because recommendation for weight limits for towed equipment and towing on slopes. Towed weight must not exceed the weight of the machine, operator, and ballast. Use counterweights or wheel weights as described in the attachment, or in the towing machine’s Operator’s Manual. the mower may tip backward. • Be aware that loss of traction may occur going downhill.
Service • Never make any adjustments or repairs with the Safe Handling of Gasoline • Grass catcher components are subject to wear, engine running. damage, and deterioration, which could expose moving parts or allow objects to be thrown. Frequently check components and replace them with the manufacturers' recommended parts, when necessary. To avoid personal injury or property damage, use extra care when handling gasoline and other fuels. They are flammable and the vapors are explosive.
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. decal93-7009 93-7009 1. Warning—do not operate the mower with the deflector up or removed; keep the deflector in place. 2. Cutting/dismemberment hazard of hand or foot, mower blade—stay away from moving parts.
decal112-9840 112-9840 1. Read the Operator's Manual. 3. Remove the ignition key and read the instructions before servicing or performing maintenance. 2. Height of cut decal119-8870 119-8870 For Models with 54-inch Decks 1. Height of cut decal119-8814 119-8814 1. Parking position 4. Neutral 2. Fast 3. Slow 5. Reverse decal119-8815 119-8815 1. Parking position 4. Neutral 2. Fast 3. Slow 5. Reverse decal119-8871 119-8871 For Models with 42-inch Decks 1.
decal131-1097 131-1097 1. Oil drain decal121-2989b 121-2989 1. Bypass lever position for pushing the machine 2. Bypass lever position for operating the machine decal131-4036 131-4036 1. Maximum drawbar pull 36 kg (80 lb) decaloemmarkt Manufacturer's Mark 2. Read the Operator's Manual. 1. Indicates the blade is identified as a part from the original machine manufacturer. decal132-0872 132-0872 decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery 1.
decal121-0772 121-0772 For Models with 42-inch Decks 1. Fast 2. Continuous-variable setting 4. Choke 5. Power takeoff (PTO), Blade-control switch 3.
decal121-0773horizontal 121-0773 For Models with 54-inch Decks 1. Fast 2. Continuous-variable setting 4. Choke 5. Power takeoff (PTO), blade-control switch 3. Slow decal131-3947 131-3947 1. Trim—slow 2. Tow—medium 3.
decal132-0869 132-0869 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 g028166 Figure 4 1. Deflector 4. Height-of-cut lever 7. Footrest 2. Rear drive wheel 5. Operator seat 8. Fuel-tank cap 10. Engine 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.
Add the correct amount of gasoline stabilizer/conditioner to the gasoline. new, placing additional load on the engine. Allow 40 to 50 hours of break-in time for new machines to develop full power and best performance. 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. Think Safety First Please read all safety instructions and symbols in the safety section.
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.
Stopping the Engine 1. Disengage the blades by moving the blade-control switch to the OFF position(Figure 13). 2. Move the throttle lever to the FAST position. 3. Turn the ignition key to the OFF position and remove the key. Driving the Machine 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.
Driving Forward Driving Backward Note: Always use caution when backing up and Note: Always use caution when backing up and turning. turning. 1. Move the levers to the center, unlocked position. 1. Move the levers to the center, unlocked position. 2. To go forward, slowly push the motion-control levers forward (Figure 15). 2. To go backward, look behind you and down, as you slowly pull the motion-control levers rearward (Figure 16).
To change speeds, do the following: 1. Move the motion-control levers to neutral and outward to the PARK position. 2. Disengage the blade-control switch. 3. Adjust the lever to the desired position. The following are only recommendations for use. Adjustments vary by grass type, moisture content, and the height of the grass. g027625 Figure 17 1.
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.
Adjusting the Motion-Control Levers Adjusting the Height You can adjust the motion-control levers higher or lower for maximum comfort (Figure 21). g027632 Figure 20 g027252 Figure 21 Adjusting the Tilt 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 21). 3.
3. Locate the bypass levers on the frame on both sides of the engine. Using the Grass Deflector 4. Move the bypass levers forward through the key hole and down to lock them in place (Figure 22). The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. Note: Do this for each lever. 5. DANGER Move the motion-control levers inward to the NEUTRAL position and turn the ignition key to the RUN position.
Transporting the Machine 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. g027995 Figure 24 1. Back the machine up ramps.
Operating Tips 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 surround the mower in uncut grass. Always try to have 1 side of the mower free from uncut grass, which allows air to be drawn into the mower.
Avoid Cutting Too Low If the cutting width of the mower is wider than the mower you previously used, raise the cutting height to ensure that uneven turf is not cut too short. Long Grass 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.
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.
Pre-Maintenance 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 You can access the following components by raising the seat: • Serial plate 1. Park the machine on a level surface and disengage the blade-control switch. 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). 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. 3.
Servicing the Engine Oil Oil Type: Detergent oil (API service SF, SG, SH, SJ, or SL) Crankcase Capacity: 2.4 L (2.5 US qt) Viscosity: See the table below. g029683 Figure 30 Checking the Engine-Oil Level Service Interval: Before each use or daily Note: Check the oil when the engine is cold. WARNING Contact with hot surfaces may cause personal injury. g029368 Figure 31 Keep hands, feet, face, clothing, and other body parts away the muffler and other hot surfaces.
2. Disengage the PTO and engage the parking brake. 3. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 4. Drain the engine oil (Figure 32).
5. 6. Change the engine-oil filter (Figure 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 34). g027484 Figure 34 g027477 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 Checking the Spark Plug Service Interval: Every 100 hours/Yearly (whichever comes first)—Check the spark plug(s). 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. Every 200 hours/Every 2 years (whichever comes first)—Replace the spark plug(s). If you see light brown or gray on the insulator, the engine is operating properly.
Cleaning the Cooling System Clean the air-intake screen from grass and debris before each use. 1. Disengage the blade-control switch and engage the parking brake. 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. Clean debris and grass from the parts. 7.
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 • 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 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.
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. 2. Remove the battery from the chassis; refer to Removing the Battery (page 38). Fuse type: Charge the battery for a minimum of 1 hour at 6 to 10 A.
Drive System Maintenance Releasing the Electric Brake Checking the Tire Pressure The electric brake releases by manually rotating the link arms forward. Once the electric brake is energized, the brake resets. 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. g006530 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). g014973 Figure 48 1. Opposite blade edge (in position for measuring) g014973 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) 4. A. Rotate the same blade 180 degrees so that the opposing cutting edge is now in the same position (Figure 47).
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. 1. Hold the blade end using a rag or thickly padded glove. 2. Remove the blade bolt, curved washer, and blade from the spindle shaft (Figure 49). g000553 Figure 51 1. Blade 3. 2.
g009682 Figure 52 Mower Decks with 2 Blades g027588 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 g005278 Figure 53 Mower Decks with 3 Blades 1. Blades side to side 3. Outside cutting edges 2. Sail area of the blade 4. measure from the tip of the blade to the flat surface here. 5. Measure between the outside cutting edges and the flat surface (Figure 52).
Adjusting the Front-to-Rear Blade Slope 5. 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: 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. 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 58). g005077 Figure 59 1. Mower deck 2. Hanger bracket 3.
Replacing the Grass Deflector Service Interval: Before each use or daily—Inspect the grass deflector for damage. An uncovered discharge opening could allow the lawn mower to throw objects at you or bystanders, resulting in serious injury. Also, contact with the blade could occur. Never operate the machine without the grass deflector, the discharge cover, or the grass-collection system in place. Inspect the grass deflector for damage before each use. Replace any damaged parts before use.
Mower Belt Maintenance 7. Using a spring-removal tool, install the idler spring over the deck hook, and place tension on the idler pulley and mower belt (Figure 62). Inspecting the Belts 8. Install the pulley covers (Figure 61). Service Interval: Every 25 hours—Check the belts for wear or cracks. Check the belts for cracks, frayed edges, burn marks, or any other damage. Replace damaged belts.
Cleaning Washing the Underside of the Mower 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. 1.
8. 9. Turn the water off and remove the coupling from the washout fitting. 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. Cleaning and Storage 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.
Important: Do not store gasoline with stabilizer/conditioner over 90 days. 10. Remove the spark plug(s) and check its condition; refer to Servicing the Spark Plug (page 35). With the spark plug(s) removed from the engine, pour 2 tablespoons of engine oil into the spark plug hole. Use the starter 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.
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 g028022 Electrical Diagram (Rev.
Notes:
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.
