Form No. 3381-501 Rev B TimeCutter® ZS 4200TF Riding Mower Model No. 74390—Serial No. 314000001 and Up Register at www.Toro.com.
Introduction 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. Read this information carefully to learn how to operate and maintain your product properly and to avoid injury and product damage. You are responsible for operating the product properly and safely.
Contents Washing the Underside of the Mower ........................43 Storage ........................................................................44 Cleaning and Storage ..............................................44 Troubleshooting ...........................................................45 Schematics ...................................................................47 Introduction .................................................................. 2 Safety ......................................
Safety • Never carry passengers. • Do not mow in reverse unless absolutely necessary. Improper use or maintenance by the operator or owner can result in injury. To reduce the potential for injury, comply with these safety instructions, and pay attention to the safety alert symbol , which means Caution, Warning, or Danger—“personal safety instruction.” Failure to comply with the instructions may result in personal injury or death.
Towing Safety • Do not mow slopes when grass is wet. Slippery conditions reduce traction and could cause sliding and loss of control. • Do not attach towed equipment except at the hitch point. • Follow the attachment manufacturer's recommendation • Always keep the drive wheels engaged when going down for weight limits for towed equipment and towing on slopes. Towed weight must not exceed the weight of the machine, operator, and ballast.
Toro Riding Mower Safety • Never interfere with the intended function of a safety device or to reduce the protection provided by a safety device. Check their proper operation regularly. 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. • Keep the machine free of grass, leaves, or other debris build-up. Clean up oil or fuel spillage fuel soaked debris.
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.
119-8814 1. Parking position 4. Neutral 2. Fast 3. Slow 5. Reverse 121-2989 1. Bypass lever position for pushing the machine 119-8815 1. Parking position 4. Neutral 2. Fast 3. Slow 5. Reverse 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.
9-7076 121-0772 1. Fast 2. Continuous variable setting 4. Choke 5. Power take-off (PTO), Blade control switch 3.
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.
Product Overview 5 3 6 9 10 7 2 1 11 8 g020157 2 12 4 Figure 4 1. Deflector 4. Height-of-cut lever 7. Footrest 2. Rear drive wheel 5. Operator seat 8. Fuel-tank cap 11. Engine guard 3. Motion-control levers 6. Smart SpeedTM lever 9. Control panel 12. Front caster wheels 12 10.
Motion-control Levers and Parking Brake Position Controls Become familiar with all of the controls in Figure 4 and Figure 5 before you start the engine and operate the machine. The motion-control levers are speed-sensitive controls of independent-wheel motors. Moving a lever forward or backward turns the wheel on the same side forward or in reverse; wheel speed is proportional to the amount the lever is moved.
Height-of-Cut Lever Operation The height-of-cut lever allows the operator to lower and raise the deck from the seated position. When the 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 22). Note: Determine the left and right sides of the machine from the normal operating position.
of varnish deposits in the fuel system, use fuel stabilizer at all times. 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.
3. Install the fuel-tank cap securely, and tighten until it clicks. Checking the Engine-oil Level Before you start the engine and use the machine, check the oil level in the engine crankcase; refer to Checking the Engine-oil Level (page 27). Breaking In a New Machine New engines take time to develop full power. Mower decks and drive systems have higher friction when new, placing additional load on the engine.
Understanding the Safety-interlock System 5 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.
2 3 4 5 6 Figure 16 g017700 1. Control panel Figure 15 1. Control panel 4. Off 2. Choke control 3. Ignition key 5. Run 6. Start 2. Blade-control switch—On position Disengaging the Blades Push down on the blade-control switch to move it to the Off position, and disengage the blades (Figure 17). 6. After the engine starts, push down on the Choke control (Figure 15). Note: If the engine stalls or hesitates, pull up on the Choke control and let the engine run for a few seconds.
Testing the Safety-interlock System WARNING The machine can spin very rapidly. The operator may lose control of the machine and cause personal injury or damage to the machine. 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. • Use caution when making turns. • Slow the machine down before making sharp turns. 1.
Driving Forward Using the Smart Speed™ Control System 1. Move the levers to the center, unlocked position. The Smart Speed™ Control-System lever, located below the operating position (Figure 19), gives the operator a choice to drive the machine at 2 ground speed ranges—high and low. 2. To go forward, slowly push the motion-control levers forward (Figure 18). 1 G014475 Figure 19 1. Smart-speed lever To change speeds: G008952 Figure 20 1.
Driving Backward 2. Once at the desired cutting position, slowly lower the lever until it engages the position. 1. Move the levers to the center, unlocked position. The transport position is the highest height-of-cut position or cutting height, 114 mm (4.5 inches) as shown in Figure 22. 2. To go backward, look behind you and down, as you slowly pull the motion-control levers rearward (Figure 21). 3 1 2 G008953 g018668 Figure 21 Figure 22 1.
Adjusting the Motion-control Levers 4 Adjusting the Height 3 The motion-control levers can be adjusted higher or lower for maximum operator comfort. 2 1 g019929 5 1. Remove the 2 bolts holding the control lever to the control-arm shaft (Figure 25). Figure 23 1. Anti-scalp roller 4. Upper hole—the mower deck in the 63mm (2-1/2 inches) and below height-of-cut positions 2. Lower hole—the mower deck in the 76mm (3 inches) and above height-of-cut positions 2.
Pushing the Machine 2. Remove the mower; refer to Removing the Mower (page 39). 1. Park the machine on a level surface, and disengage the blade-control switch. 3. Turn the mower upside down. 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. 4. Remove the existing mower blades installed on your deck; refer to for more information. 5.
Avoiding Cutting Too Low 9. Install the mower; refer to Installing the Mower (page 40). Operating Tips 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. Using the Fast Throttle Setting Cutting Long Grass For best mowing and maximum air circulation, operate the engine at the Fast throttle 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 8 hours • Change the engine oil. 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 the lubrication points. Make sure that the motion-control levers are locked in the park position, and lift the seat forward. Grease Type: No. 2 General Purpose, Lithium-Base Grease 1. Park the machine on a level surface, and disengage the blade-control switch. 2.
Engine Maintenance Important: Never clean the paper element with pressurized air or liquids, such as solvent, gas, or kerosene. Replace the paper element if it is damaged or cannot be cleaned thoroughly. Servicing the Air Cleaner Note: Service the air cleaner more frequently (every few hours) if operating conditions are extremely dusty or sandy. Servicing the Engine Oil Oil Type: Detergent oil (API service SF, SG, SH, SJ, or SL) Removing the Paper Element Crankcase Capacity:with a filter change, 2.
4. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 1 3 6 1 2 3 4 5 6 2 4 5 7 G014971 Figure 34 8 9 10 G008792 Figure 33 Changing the Engine Oil Service Interval: After the first 8 hours—Change the engine oil. Every 100 hours—Change the engine oil (more often in dusty, dirty conditions). Note: Dispose of the used oil at a recycling center. 1.
4. 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 35). 1 3 1 2 3 4 2 4 5 5 6 6 3/4 G008796 Figure 35 G008748 Figure 36 Changing the Engine-oil Filter Note: Ensure that the oil-filter gasket touches the engine and then an extra 3/4 turn is completed. Service Interval: Every 200 hours—Change the oil filter (more often in dusty, dirty conditions). 3.
Removing the Spark Plug Installing the Spark Plug 1. Disengage the PTO, move the motion-control levers to the neutral-locked position, and set the parking brake. Tighten the spark plug(s) to 22 N-m (16 ft-lb). 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 16 ft-lb 22 N-m Figure 37 Note: Due to the deep recess around the spark plug, blowing out the cavity with compressed air is usually the most effective method for cleaning.
Fuel System Maintenance 4. Squeeze the ends of the hose clamps together and slide them away from the filter (Figure 40). 5. Remove the filter from the fuel lines. 6. Install a new filter with the flow-direction arrow coming from the fuel tank and pointing to the engine. DANGER In certain conditions, gasoline is extremely flammable and highly explosive. A fire or explosion from gasoline can burn you, others, and can damage property. 7.
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 battery cables. 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. 1. Remove the battery from the chassis; refer to Removing the Battery (page 32). Fuse type: 2. Charge the battery for a minimum of 1 hour at 6 to 10 amps.
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 will reset. Checking the Tire Pressure To release the brake: 1. Locate the shaft on the electric brake where the brake-link arms are connected (Figure 45). 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 uneven cut.
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 46 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 48). 1 1 G014973 3 2 G014973 3 Figure 50 2 1. Opposite blade edge (in position for measuring) Figure 48 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.
Installing the Blades 1. Install the blade onto the spindle shaft (Figure 51). Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. 2. Install the blade stiffener, the curved washer (cupped side toward the blade), and the blade bolt (Figure 51). 3. Torque the blade bolt to 47 to 88 N-m (35 to 65 ft-lb). Figure 51 Leveling the Mower Deck 4. Blade bolt 5. Blade stiffener 1. Sail area of the blade 2. Blade 3.
1 2 G009682 3 3 2 4 1 3 4 4 6 Figure 54 1. Blades side to side 3. Outside cutting edges 2. Sail area of blade 4. Measure here 2 5 G005074 6. Move to the left side of the machine. 7. Loosen, but do not remove, the rear locking nut on the hanger bracket (Figure 55). 8. Loosen the side locking nut on the hanger bracket just enough to allow the eccentric plate to be adjusted (Figure 55). Figure 55 Note: Use a 3/8-inch drive extension on a socket wrench to manipulate the eccentric plate.
Removing the Mower 2 1 1. Park the machine on a level surface and disengage the blade-control switch. G009658 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. 2 3. Lower the height-of-cut lever to the lowest position. Figure 56 4. Remove the hairpin-cotter pin from the front support rod, and remove the rod from the deck bracket (Figure 58). 1. Blades front to rear 2.
Replacing the Grass Deflector Service Interval: Before each use or daily—Inspect the grass deflector for damage. WARNING 2 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. 2 3 1 Never operate the lawn mower unless you install a mulch plate, discharge deflector, or grass collection system. G005077 Inspect the grass deflector for damage before each use.
2 1 3 3 2 1 4 4 g017618 Figure 61 1. Rod and spring assembly installed 2. Loop end of the spring installed into the notch in the deflector bracket 7. Secure the rod and the spring assembly by twisting it, so the short end of the rod can be placed behind the front bracket welded to the deck (Figure 61). g017617 5 Important: The grass deflector must be spring-loaded in the down position. Lift the deflector up to test that it snaps to the full down position. Figure 60 1. Rod 2. Spring 3.
Mower Belt Maintenance 2 7 3 1 5 Inspecting the Belts 7 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 3 WARNING The spring is under tension when installed and can cause personal injury. Be careful when removing the belt.
Cleaning Note: If the mower is not clean after one washing, soak it and let it stand for 30 minutes. Then, repeat the process. Washing the Underside of the Mower 9. Run the mower again for 1 to 3 minutes to remove excess water. WARNING Service Interval: After each use—Clean the mower-deck housing. A broken or missing washout fitting could expose you and others to thrown objects or blade contact. Contact with blade or thrown debris can cause injury or death.
Storage 14. Check the condition of the drive and mower belts. 15. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is worn or damaged. Cleaning and Storage 16. Paint all scratched or bare metal surfaces. Paint is available from your Authorized Service Dealer. 1. Disengage the blade-control switch, move the motion controls outward to the park position, stop the engine, and remove the key. 17. Store the machine in a clean, dry garage or storage area.
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. 1. The blade(s) is not sharp. 1. Sharpen the blade(s). 2. A cutting blade(s) is/are bent. 3.
Schematics g017655 Electrical Diagram (Rev.
The Toro Total Coverage Warranty TimeCutter and TITAN Mowers Limited Warranty (see warranty periods below) Conditions and Products Covered the Yellow Pages of your telephone directory (look under “Lawn Mowers”) or access our web site at www.Toro.com. You may also call the numbers listed in item #3 to use the 24-hour Toro Dealer locator system.
