Form No. 3388-238 Rev A TimeCutter® SS 4200 Riding Mower Model No. 74720—Serial No. 315000001 and Up Register at www.Toro.com.
Introduction Important: This engine is not equipped with a spark arrester muffler. It is a violation of California Public Resource Code Section 4442 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land. Other states or federal areas may have similar laws. 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.
Cooling System Maintenance ......................................34 Cleaning the Engine Screen......................................34 Cleaning the Engine Cooling Fins and Shrouds.............................................................34 Mower Maintenance ...................................................35 Servicing the Cutting Blades.....................................35 Leveling the Mower Deck ........................................37 Removing the Mower............................................
Safety • Turn off blades when not mowing. Stop the engine, wait 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.
Service • Always avoid sudden starting or stopping on a slope. If • • • • tires lose traction, stop the machine, disengage the blades and proceed slowly off the slope. Use extreme care with grass catchers or other attachments. These can change the stability of the machine and cause loss of control. Do not try to stabilize the machine by putting your foot on the ground. Do not mow near drop-offs, ditches, steep banks or water.
• 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—don't 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. 110-6691 1. Thrown object hazard—keep bystanders a safe distance from the machine. 2.
119-8815 1. Parking position 4. Neutral 2. Fast 3. Slow 5. Reverse 121-2989 1. Bypass lever position for pushing the machine 2. Bypass lever position for operating the machine Battery Symbols Some or all of these symbols are on your battery 119-8871 42 Inch Model 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.
131–3947 1. Trim—slow 2. Tow—medium 3. Mow—fast 131-4036 1. Do not tow or pull weights 2. Read the Operator's greater than 36 kg (80 lbs). Manual.
120-2239 1. Warning—read the Operator's Manual. 5. Warning—do not use split ramps, use a full ramps when transporting machine. 2. Warning—read the instructions before servicing or performing maintenance; move the motion control levers to the park (brake) position, remove the ignition key and disconnect the spark plug wire. 6. Loss of traction/control hazard, slopes—loss of traction/control on a slope, disengage the blade control switch (PTO), proceed off the slope slowly. 3.
Ignition Switch Product Overview The ignition switch has three positions, Off, Run and Start. The key will turn to Start and move back to Run upon release. Turning the key to the Off position will stop the engine; however, always remove the key when leaving the machine to prevent someone from accidentally starting the engine (Figure 5). Throttle/Choke Control The throttle and choke is combined into one control lever.
Fuel Window Operation The fuel window located on the left hand side of the machine can be used to verify the presence of gasoline in the tank (Figure 7). Note: Determine the left and right sides of the machine from the normal operating position. Think Safety First G014521 Operating Safety Please carefully read all of the safety instructions and decals in the safety section. Knowing this information could help you, your family, pets or bystanders avoid injury.
Fuel Safety 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. • Fill the fuel tank outdoors, in an open area, when the engine is cold. Wipe up any gasoline that spills. • Never fill the fuel tank inside an enclosed trailer. • Do not fill the fuel tank completely full. Add gasoline to the fuel tank until the fuel reaches the base of the filler neck.
8. Start the engine. WARNING 9. While the engine is running, engage the blade-control switch, and rise slightly from the seat. Gasoline is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness. Note: The engine should stop. • Avoid prolonged breathing of vapors. 10. While sitting on the seat, move the blade-control switch to Off, and lock the motion-control levers in the park position. • Keep face away from nozzle and gas tank or conditioner opening. 11.
Filling the Fuel Tank Starting the Engine Note: Ensure that the engine is shut off and the motion controls are in the parked position. Note: It may be necessary to hold the lever against the stop, in the choke position, while trying to start the engine (Figure 11). Note: You can use the fuel window to verify the presence of gasoline before filling the tank (Figure 10). Important: Do not engage the starter for more than 5 seconds at a time.
Operating the Blades 3. Turn the ignition key to Off and remove the key. 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. Driving Driving the machine benefits from an understanding of what zero-turn-radius mower means.
Using the Smart SpeedTM Control System • Bagging • Mulching TM The Smart Speed Control-System lever, located below the operating position (Figure 15), gives the operator a choice to drive the machine at 3 ground speed ranges—trim, tow, and mow. Mow This is the fastest speed. The suggested uses for this speed are as follows: • Normal mowing • Transporting the machine Driving Forward 1. Move the levers to the center, unlocked position. 2.
Driving Backward Adjusting the Height-of-Cut Note: Always use caution when backing up and turning. Note: The transport position is the highest height-of-cut position or cutting height (115 mm (4.5 inches)) as shown in Figure 18. 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 17). G008953 Figure 17 To go straight, apply equal pressure to both motion-control levers (Figure 17).
Adjusting the Motion Control Levers • Upper hole—use this position with the mower deck in the 63mm (2-1/2 inch) and below height-of-cut positions (Figure 19). • Lower hole—use this position with the mower Adjusting the Height deck in the 76mm (3 inch) and above height-of-cut positions (Figure 19). The motion control levers can be adjusted higher or lower for maximum operator comfort (Figure 21). 4 A B 3 2 g019929 1 5 Figure 19 1. Anti-scalp roller 4.
Grass Deflector 5. Move the motion control levers inward to the neutral position and turn the ignition key to the run position. Do not start the machine. The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. The machine is now able to be pushed by hand. 3 DANGER Without the grass deflector, discharge cover, or complete grass catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris.
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 totally surround the mower by uncut grass. Always try to have one side of the mower free from uncut grass, which allows air to be drawn into the mower.
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. When Stopping If the machine's forward motion must be stopped while mowing, a clump of grass clippings may drop onto your lawn.
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. Before each use or daily • • • • • • Check the safety-interlock system. Clean and check the air cleaner foam element. Check the engine oil level. Clean the engine air intake screen. Check the cutting blades.
Lubrication Engine Maintenance Greasing the Bearings Servicing the Air Cleaner Service Interval: Every 25 hours—Grease all lubrication points. Service Interval: Before each use or daily—Clean and check the air cleaner foam element. Every 50 hours—Replace the air cleaner paper element. Grease Type: No. 2 General Purpose Lithium Base Grease 1. Park the machine on a level surface and disengage the blade control switch.
Servicing the Engine Oil Oil Type: Detergent oil (API service SF, SG, SH, SJ, or higher) Crankcase Capacity: 1.0 L (34 oz) when you do not change the filter; 1.05 L (36 oz) when you change the filter. Viscosity: See the table below. Figure 27 1. Foam element 2. Paper element 6. Separate the foam and paper elements. Cleaning the Foam and Paper Elements Foam Element: Figure 28 1. Wash the foam element in liquid soap and warm water. When the element is clean, rinse it thoroughly. 2.
A B C D F G H I E A B C D E F J g027476 Figure 30 4. Slowly pour approximately 80% of the specified amount of oil into the fill hole (Figure 31). G027475 Figure 29 Changing the Engine Oil Service Interval: After the first 5 hours Every 100 hours (change it more often under a heavy load or in high temperatures). 1. Park the machine, so that the right side is slightly lower than the left side, to ensure that the oil drains completely. 2. Disengage the blade-control switch (PTO). 3.
A B A B C D C D E F E F g027484 3/4 Figure 31 g027477 Figure 32 5. Check the oil level; refer to Checking the Engine-Oil Level (page 26). Note: Ensure the oil-filter gasket touches the engine, and then an extra 3/4 turn is completed. Changing the Engine-Oil Filter 2. Fill the crankcase with the proper type of new oil; refer to Changing the Engine Oil (page 27).
Installing the Spark Plug B A Tighten the spark plug to 20 N-m (15 ft-lb). B A g027478 Figure 33 1. Spark-plug wire 4. Clean around the spark plug to prevent dirt from falling into the engine and potentially causing damage. C 5. Remove the spark plug and metal washer. 15 ft-lb 20 N-m D Checking the Spark Plug 1. Inspect the spark plug (Figure 34). g027480 Note: If you see light brown or gray on the insulator, the engine is operating properly.
Fuel System Maintenance B A 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. g027478 Figure 36 • Perform any fuel related maintenance when the engine is cold. Do this outdoors in an open area. Wipe up any gasoline that spills. Checking the Spark Plug Important: Do not clean the spark plug(s).
Replacing the In-line Fuel Filter Electrical System Maintenance Service Interval: Every 100 hours—Replace the in-line fuel filter. WARNING Never install a dirty filter if it is removed from the fuel line. 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. 1.
5. Slide the rubber cover up the positive (red) cable. Disconnect the positive (red) cable from the battery post (Figure 40). Retain all fasteners. 6. Remove the battery hold-down (Figure 40) and lift the battery from the battery tray. 3 2 6 5 1 Figure 41 7 4 1. Positive battery post 3. Red (+) charger lead 2. Negative battery post 4. Black (-) charger lead Installing the Battery 1. Position the battery in the tray (Figure 40). 2.
Drive System Maintenance 30 Checking the Tire Pressure 25 Service Interval: Every 25 hours—Check tire pressure. 30 1 25 Maintain the air pressure in the front and rear tires as specified. Uneven tire pressure can cause uneven cut. Check the pressure at the valve stem (Figure 43). Check the tires when they are cold to get the most accurate pressure reading. 2 G014540 Refer to the maximum pressure suggested by the tire manufacturer on the sidewall of the caster wheel tires. Figure 42 1.
Releasing the Electric Brake Cooling System Maintenance The electric brake releases by manually rotating the link arms forward. Once the electric brake is energized the brake will reset. Cleaning the Engine Screen To release the brake: 1. Turn the ignition key to the Off position or disconnect the battery. Service Interval: Before each use or daily—Clean the engine air intake screen. 2. Locate the shafts where the brake-link arms are connected on both sides of the electric brake (Figure 44).
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 turns grass brown at the edges, which slows growth, and increases the chance of disease. Figure 45 Check the cutter 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 47). 1 1 G009680 3 2 G009680 3 Figure 49 2 1. Opposite blade edge (in position for measuring) Figure 47 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.
Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. 2. Install the the curved washer (cupped side toward the blade) and the blade bolt (Figure 50). 3. Torque the blade bolt to 47 to 88 N-m (35 to 65 ft-lb). Leveling the Mower Deck 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.
Note: Check and adjust the side-to-side blade level if you have not checked the setting; refer to Leveling from Side to Side (page 37). 5. Measure between the outside cutting edges and the flat surface (Figure 53). If both measurements are not within 5 mm (3/16 inch), an adjustment is required; continue with this procedure. 4. Carefully rotate the blades so they are facing front to rear (Figure 55). 6. Move to the left side of the machine. 7. Loosen the side locking nut. 8.
9. After adjustment, check the front-to-rear slope again, continue adjusting the nut until the front blade tip is 1.6 to 7.9 mm (1/16 to 5/16 inch) lower than the rear blade tip (Figure 55). 10. When the front-to-rear blade slope is correct check the side-to-side level of the mower again, refer to Leveling from Side to Side (page 37). 2 Removing the Mower 2 3 1. Park the machine on a level surface and disengage the blade control switch. 2.
WARNING WARNING The spring is under tension when installed and can cause personal injury. 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. Be careful when removing the belt. Never operate the machine without grass deflector, discharge cover or grass collection system in place. 2 5 Inspect the grass deflector for damage before each use.
Cleaning Note: If the mower is not clean after one washing, let it soak for 30 minutes. Then repeat the procedure of washing the underside of the mower. Washing the Underside of the Mower 8. Run the mower again for one to three minutes to remove excess water. Service Interval: After each use—Clean the mower housing. WARNING Important: You can wash the machine with a mild detergent and water. Do not pressure wash the machine.
Storage section. With the spark plug(s) removed from the engine, pour two 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). 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. 12. Clean any dirt and chaff from the top of the mower. 13.
Troubleshooting Problem The engine overheats. Possible Cause 1. The engine load is excessive. 1. Reduce 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 fuel system.
Problem There is abnormal vibration. Uneven cutting height. 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. The blade(s) is not sharp.
Schematics Electrical Diagram (Rev.
Notes: 46
Notes: 47
The Toro Total Coverage Warranty Landscape Contractor Equipment (LCE) A 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.
