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Form No. 3394-175 Rev A TimeCutter® SS 4225 Riding Mower Model No. 74721—Serial No. 315000001 and Up Register at www.Toro.com.
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Introduction WARNING CALIFORNIA Proposition 65 Warning This product contains a chemical or chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. This machine is a ride-on, rotary-blade lawnmower intended to be used by homeowners in residential applications. It is primarily designed for cutting grass on well-maintained lawns. It is not designed for cutting brush, mowing grass and other growth alongside highways, or for agricultural uses.
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g000502 Figure 2 1. Safety alert symbol. This manual uses 2 words to highlight information. Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention.
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Contents Schematics ............................................................. 47 Safety ....................................................................... 5 Safe Operating Practices.................................... 5 Safety and Instructional Decals .......................... 7 Product Overview ................................................... 12 Controls ........................................................... 12 Operation ................................................................
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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.
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• Be aware that loss of traction may occur going 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 pulling machine Operator’s Manual. downhill. Weight transfer to the front wheels may cause drive wheels to slip and cause loss of braking and steering. • Always avoid sudden starting or stopping on a slope.
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Service General Service: Safe Handling of Gasoline: • Never operate a machine inside a closed area. To avoid personal injury or property damage, use extra care when handling gasoline and other fuels. They are flammable and the vapors are explosive. • Keep nuts and bolts tight, especially the blade Engine exhaust contains carbon monoxide, which is an odorless, deadly poison that can kill you. attachment bolts. Keep equipment in good condition.
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decal114-1606 114-1606 1. Entanglement hazard, belt—keep all guards in place. decal105-7015 105-7015 For models with 42-inch decks decal119-8814 119-8814 1. Parking position 4. Neutral 2. Fast 3. Slow 5. Reverse decal106-8717 106-8717 1. Read the instructions before servicing or performing maintenance. 2. Check tire pressure every 25 operating hours. decal119-8815 119-8815 3. Grease every 25 operating hours. 4. Engine decal110-6691 110-6691 1.
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decal131-4036 131-4036 1. Maximum drawbar pull 36 kg (80 lb) 2. Read the Operator's Manual. decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery decal119-8871 119-8871 Certain models only 1. Height-of-cut 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.
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decal131-3947 131–3947 1. Trim—slow 2. Tow—medium 3. Mow—fast decal131-4161 131-4161 1. Fast 2. Slow 3.
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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.
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Product Overview g027933 Figure 3 1. Deflector 4. Height-of-cut lever 7. Footrest 10. Control panel 2. Rear drive wheel 5. Operator seat 8. Engine 11. Engine guard 3. Motion-control levers 6. Smart Speed™ lever 9. Fuel-tank cap 12. Front caster wheel Controls Ignition Switch Become familiar with all of the controls in Figure 3 and Figure 4 before you start the engine and operate the machine. The ignition switch has 3 positions: Off, Run, and Start.
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lever is moved up (toward the operator), the deck is raised from the ground, and when moved down (away from the operator), it is lowered toward the ground. Only adjust the height-of-cut while the machine is not moving (Figure 17). outward from the center to the park position, and exit the machine (Figure 13). Always position the motion-control levers into the park position when you stop the machine or leave it unattended.
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Operation DANGER In certain conditions during fueling, static electricity can be released causing a spark which 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.
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Add the correct amount of gas stabilizer/conditioner to the gas. 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.
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Understanding the Safety-Interlock System WARNING If safety-interlock switches are disconnected or damaged, the machine could operate unexpectedly causing personal injury. • Do not tamper with the interlock switches. • Check the operation of the interlock switches daily, and replace any damaged switches before operating the machine. The safety-interlock system is designed to prevent the engine from starting unless: • The blades are disengaged. • The motion-control levers are in the park position.
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12. Operating the Blades While the engine is running, move the motion-control levers to the center, unlocked position, engage the blade-control switch, and rise slightly from the seat. The blade-control switch, represented by a power take-off (PTO) symbol, 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. Note: The engine should stop.
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Stopping the Engine 1. Disengage the blades by moving the blade-control switch to Off (Figure 12). 2. Move the throttle lever to between the half and full throttle position. 3. Turn the ignition key to Off and remove the key. Driving the Machine Driving the machine benefits from an understanding of what zero-turn-radius mower means.
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Using the Smart SpeedTM Control System This is the medium speed. The suggested uses for this speed are as follows: • Bagging The Smart Speed TM Control-System lever, located below the operating position (Figure 14), gives the operator a choice to drive the machine at 3 ground speed ranges—trim, tow, and mow. • Mulching Mow This is the fastest speed.
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Driving Backward Adjusting the Height-of-Cut Note: Always use caution when backing up and Note: The transport position is the highest turning. 1. Move the levers to the center, unlocked position. 2. To go backward, look behind you and down, as you slowly pull the motion-control levers rearward (Figure 16). height-of-cut position or cutting height 115 mm (4.5 inches) as shown in Figure 17. g008953 Figure 16 To go straight, apply equal pressure to both motion-control levers (Figure 16).
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Adjusting the Motion-Control Levers • Upper hole—use this position with the mower deck in the 63 mm (2-1/2 inches) and below the height-of-cut positions (Figure 18). • Lower hole—use this position with the mower deck in the 76 mm (3 inches) and above the height-of-cut positions (Figure 18). Adjusting the Height The motion-control levers can be adjusted higher or lower for maximum operator comfort (Figure 20). g019929 Figure 18 1. Anti-scalp roller 4.
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Transporting the Machine Pushing the Machine 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, stop the engine, 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. Use a heavy-duty trailer or truck to transport the machine.
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g027995 Figure 23 1. Back up ramps 2. Drive forward down ramps Important: Do not use narrow individual ramps for each side of the machine. Ensure the ramp is long enough so that the angle with the ground does not exceed 15 degrees (Figure 24). On flat ground, this requires a ramp to be at least four times (4X) 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 unit moves from the ramp to the trailer or truck.
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Operating Tips Avoid Cutting Too Low Fast Throttle Setting 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. 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 by uncut grass.
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Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Interval Before each use or daily Maintenance Procedure • • • • • Check the safety-interlock system. Check the air cleaner for dirty, loose or damaged parts. Check the engine-oil level. Check the cutting blades. Inspect the grass deflector for damage. After each use • Clean the mower-deck housing.
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Pre-Maintenance Procedures Lubrication Raising the Seat Service Interval: Every 25 hours—Grease all the lubrication points. Make sure that the motion-control levers are locked in the park position. Lift the seat forward. Grease Type: No. 2 general purpose, lithium-based grease 1. Park the machine on a level surface, and disengage the blade-control switch. 2.
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5. Engine Maintenance Pump grease into the fittings until grease begins to ooze out of the bearings. Servicing the Air Cleaner Service Interval: Before each use or daily—Check the air cleaner for dirty, loose or damaged parts. Every 50 hours—Service the air-cleaner paper element (more often under extremely dusty, dirty conditions). Every 100 hours—Replace the air-cleaner paper element (more often under extremely dusty, dirty conditions).
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g023919 Figure 27 1. Air-cleaner latch 3. Paper element 2. Engine 4. Air-cleaner base Servicing the Engine Oil Oil Type: Detergent oil (API service SJ or higher) Crankcase Capacity: 1.9 L (64 oz) when the filter is changed Viscosity: See the table below. g027515 Figure 29 Changing the Engine Oil and the Engine-Oil Filter Service Interval: Every 100 hours—Change the engine oil and the engine-oil filter. Note: The drain plug is attached to the drain hose.
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g027477 Figure 31 g027934 5. Figure 30 4. Torque the plug to 14 N-m (125 in-lb). 29 Slowly pour approximately 80% of the specified oil into the filler tube (Figure 32).
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g027478 Figure 33 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. Note: 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. Set the gap to 0.76 mm (0.030 inch). g027517 Figure 32 Servicing the Spark Plug Service Interval: Every 200 hours—Check spark plug(s) condition and gap.
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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. • 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.
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Electrical System Maintenance 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. g027959 Charging the Battery Removing the Battery WARNING Battery terminals or metal tools could short against metal machine components causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury.
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Charging the Battery 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. Service Interval: Before storage—Charge the battery and disconnect 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 32). 2.
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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—F1-30 amp, blade-type Service Interval: Every 25 hours—Check tire pressure. • Charge Circuit—F2-25 amp, blade-type 1. Maintain the air pressure in the front and rear tires as specified. Uneven tire pressure can cause uneven cut.
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Mower Maintenance Releasing the Electric Brake Servicing the Cutting Blades The electric brake releases by manually rotating the link arms forward. Once the electric brake is energized the brake will reset. Maintain sharp blades throughout the cutting season, because sharp blades cut cleanly without tearing or shredding the grass blades. Tearing and shredding turns grass brown at the edges, which slows growth, and increases the chance of disease.
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3. Measure from the tip of the blade to the flat surface (Figure 44). g006530 Figure 42 1. Cutting edge 3. Wear/slot forming 2. Curved area 4. Damage g014973 Figure 44 Checking for Bent Blades 1. Blade (in position for measuring) Note: The machine must be on a level surface for the following procedure. 2. Level surface 3. Measured distance between blade and the surface (A) 1. 2. Raise the mower deck to the highest height-of-cut position; also considered the 'transport' position. 4.
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g014973 Figure 46 g027833 1. Opposite blade edge (in position for measuring) Figure 47 2. Level surface 3. Second measured distance between blade and surface (B) A. 1. Sail area of the blade 2. Blade If the difference between A and B is greater than 3mm (1/8 inch), replace the blade with a new blade; refer to Removing the Blades (page 37) and Installing the Blades (page 38). Sharpening the Blades 1.
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Installing the Blades 1. Install the blade onto the spindle shaft (Figure 47). Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. 2. Install the curved washer (cupped side toward the blade) and the blade bolt (Figure 47). 3. Torque the blade bolt to 47 to 88 N-m (35 to 65 ft-lb).
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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 39). Adjusting the Front-to-Rear Blade Slope 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 instructions: 1. 2. 3.
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8. Slide the mower deck out from underneath the machine. Note: Retain all parts for future installation. Installing the Mower g014635 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, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Slide the mower under the machine. 4. Lower the height-of-cut lever to the lowest position. 5.
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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 in the operator's or bystander's direction and result 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.
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Mower Belt Maintenance Inspecting the Belts 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. Replacing the Mower Belt Squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks, and cracks are signs of a worn mower belt. Replace the mower belt if any of these conditions are evident. 1. 2.
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Cleaning 7. Disengage the blade-control switch, stop the engine, remove the ignition key, and wait for all moving parts to stop. Washing the Underside of the Mower 8. Turn the water off and remove the coupling from the washout fitting. Note: If the mower is not clean after one Service Interval: After each use—Clean the mower-deck housing. washing, soak it and let it stand for 30 minutes. Then, repeat the process. 9.
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Storage Important: Do not store stabilizer/conditioned gasoline over 90 days. Cleaning and Storage 1. Disengage the blade control switch, move the motion controls outward to the park position, stop the engine, and remove the key. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine. Clean dirt and chaff from the outside of the engine cylinder head fins and blower housing. Important: You can wash the machine with mild detergent and water.
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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.
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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.
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Schematics g028022 Electrical Diagram (Rev.
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The Toro Total Coverage Warranty TimeCutter and TITAN Mowers 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 the original purchaser to repair the Toro Products listed below if defective in materials or workmanship.
