Form No. 3446-919 Rev B TimeCutter® 42in Riding Mower Model No. 75749—Serial No. 400000000 and Up Model No. 75752TA—Serial No. 400000000 and Up Register at www.Toro.com.
Introduction It is a violation of California Public Resource Code Section 4442 or 4443 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order or the engine is constructed, equipped, and maintained for the prevention of fire. This rotary-blade, riding lawn mower is intended to be used by homeowners in residential applications.
Adjusting the Anti-Scalp Rollers........................ 22 Operating Tips ................................................. 23 After Operation .................................................... 24 After Operation Safety ...................................... 24 Cleaning the Machine ....................................... 24 Pushing the Machine by Hand .......................... 24 Transporting the Machine ................................. 25 Maintenance ...................................................
Safety This machine has been designed in accordance with ANSI B71.1-2017. General Safety This product is capable of amputating hands and feet and of throwing objects. Always follow all safety instructions to avoid serious personal injury or death. • Read and understand the contents of this Operator’s Manual before starting the engine. • Keep bystanders and children away. • Do not allow children or untrained people to operate or service the machine.
Slope Indicator g011841 Figure 3 You may copy this page for personal use. 1. The maximum slope you can 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.
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 missing. decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery. 1. Explosion hazard 6. Keep bystanders away 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.
decal132-0872 132-0872 1. Thrown object hazard—keep bystanders away from the machine. 3. Severing hazard of hand or foot—keep away from moving parts. 2. Thrown object hazard, raised deflector—do not operate the machine with an open deck; use a bagger or a deflector. 4. Entanglement hazard—keep away from moving parts; keep all guards and shields in place. Decal 138-6074 is molded into the fuel tank. decal139-2388 139-2388 1. Slow 2. Hauling 3. Fast decal138-2456 138-6074 1.
decal139-2395 139-2395 1. Parking brake 4. Neutral 2. Fast 3. Slow 5. Reverse 6. Traction controls Decal 140-2717 is for Model 75752TA only. decal139-2392 decal140-2717 139-2392 140-2717 1. Fast 2. Slow decal142-5864 142-5864 decal139-2394 139-2394 1. Traction controls 2. Fast 3. Slow 4. Neutral 5. Reverse 6.
decal144-5288 144-5288 Note: This machine complies with the industry standard stability test in the static lateral and longitudinal tests with the maximum recommended slope indicated on the decal. Review the instructions for operating the machine on slopes in the Operator’s Manual as well as the conditions in which you would operate the machine to determine whether you can operate the machine in the conditions on that day and at that site.
Product Overview g364647 Figure 4 1. Engine 4. Motion-control levers 7. Deflector 2. Operator seat 5. Rear drive wheel 8. Smart Speed™ lever 3. Fuel-tank cap 6. Front caster wheels 9. Height-of-cut lever 10 10.
Controls Motion-Control Levers Become familiar with all the controls before you start the engine and operate the machine. Use the motion-control levers to drive the machine forward, reverse, and turn either direction (Figure 4). Control Panel Park Position Move the motion-control levers outward from the center to the PARK position when exiting the machine to engage the electric brake (Figure 19).
Height-of-Cut Lever Operation 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 23). Note: Determine the left and right sides of the machine from the normal operating position.
Adding Fuel Fuel Safety • Fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property. Recommended Fuel – To prevent a static charge from igniting the fuel, remove the machine from the truck or trailer and refuel it on the ground, away from all vehicles.
Understanding the Safety-Interlock System The safety-interlock system is designed to prevent the engine from starting unless: • The blade-control switch (PTO) is disengaged. • The motion-control levers are in the PARK position. The safety-interlock system also is designed to shut off the engine whenever the control levers are out of the PARK position and you rise from the seat. Testing the Safety-Interlock System Test the safety-interlock system before you use the machine each time.
Positioning the Seat Adjusting the Tilt The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable (Figure 8). 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. g333846 Figure 10 g027249 Figure 8 3.
• Operate the machine only in good visibility and appropriate weather conditions. Do not operate the machine when there is the risk of lightning. • Keep your hands and feet away from the cutting units. Keep clear of the discharge opening. • Do not mow with the discharge deflector g229846 Figure 11 raised, removed, or altered unless there is a grass-collection system or mulch kit in place and working properly. 1. Wear hearing protection.
– Evaluate the site conditions of the day to determine if the slope is safe for machine operation. Use common sense and good judgment when performing this evaluation. Changes in the terrain, such as moisture, can quickly affect the operation of the machine on a slope. • Identify hazards at the base of the slope. Do not operate the machine near drop-offs, ditches, embankments, water, or other hazards. The machine could suddenly roll over if a wheel goes over the edge or the edge collapses.
Operating the Mower Operating the Throttle Blade-Control Switch (PTO) You can move the throttle control between the FAST and SLOW positions (Figure 16). The blade-control switch (PTO) starts and stops the mower blades and any powered attachments. Always use the FAST position when engaging the PTO. Engaging the Blade-Control Switch (PTO) g295539 Figure 16 g008945 Figure 13 Note: Always engage the blades with the throttle in Operating the Choke the FAST position (Figure 14).
Starting the Engine CAUTION Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. Note: A warm or hot engine may not require choking. 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. If the engine fails to start, wait 10 seconds before operating the engine starter again.
Driving the Machine Driving Backward 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. This greatly improves the machine maneuverability but may require some time for you to adapt to how it moves. Note: Always use caution when backing up and turning. 1. Move the levers to the center, unlocked position. 2.
1. Move the motion-control levers to neutral and outward to the PARK position. Using the Side Discharge 2. Disengage the blade-control switch. 3. Adjust the lever to the desired position. The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. The following are only recommendations for use. Adjustments vary by grass type, moisture content, and the height of the grass.
Adjusting the Height of Cut Adjusting the Anti-Scalp Rollers Note: The transport position is the highest height-of-cut position or cutting height at 114 mm (4-1/2 inches) as shown in Figure 23. Whenever you change the height of cut, adjust the height of the anti-scalp rollers. You can adjust the height of cut from 38 to 114 mm (1-1/2 to 4-1/2 inches) in 13 mm (1/2 inch) increments. The height of cut is controlled by the lever located to the right of the operating position (Figure 23).
Stopping the Machine Operating Tips If you must stop the forward motion of the machine while mowing, a clump of grass clippings may drop onto your lawn. To avoid this, move onto a previously cut area with the blades engaged or you can disengage the mower deck while moving forward. Maximizing Air Circulation For best mowing and maximum air circulation, operate the engine at the FAST position.
Pushing the Machine by Hand After Operation After Operation Safety This machine has an electric-brake mechanism, and to push the machine, the key must be in the RUN position. The battery needs to be charged and functioning to disengage the electric brake. General Safety • Shut off the engine, remove the key, and wait 1. Park the machine on a level surface, disengage the blade-control switch, and move the motion-control levers outward to the PARK position. 2.
Transporting the Machine Use a heavy-duty trailer or truck to transport the machine. Use a full-width ramp. Ensure that the trailer or truck has all the necessary brakes, lighting, and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you or bystanders avoid injury. Refer to your local ordinances for trailer and tie-down requirements.
1. If you are using a trailer, connect it to the towing vehicle and connect the safety chains. 2. If applicable, connect the trailer brakes and lights. 3. Lower the ramp, ensuring that the angle between the ramp and the ground does not exceed 15 degrees (Figure 26). 4. Back the machine up the ramp (Figure 27). g027995 Figure 27 1. Back the machine up the ramp. 5. Shut off the engine, remove the key, and move the motion-control levers outward to the PARK position. 6.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Maintenance Safety • If you leave the key in the switch, someone could accidently start the engine and seriously injure you or other bystanders. Remove the key from the switch before you perform any maintenance. • Before you leave the operator’s position, do the following: – Park the machine on a level surface. – Disengage the drives. – Engage the parking brake. – Shut off the engine and remove the key.
Recommended Maintenance Schedule(s) Maintenance Service Interval Before each use or daily Maintenance Procedure • • • • Check the safety-interlock system. Check the engine-oil level. Inspect the blades. Inspect the grass deflector for damage. After each use • Clean grass and debris from the cutting unit, muffler, drives, grass catcher, and engine. • Clean the mower-deck housing. • Clean grass and debris from the cutting unit, muffler, drives, grass catcher, and engine.
Pre-Maintenance Procedures Lubrication Raising the Machine Service Interval: Every 25 hours—Grease the caster wheel bearings (more often in sandy soil conditions). Greasing the Bearings Use jackstands to support the machine when you raise it. Grease Type: No. 2 lithium grease 1. Supporting the machine on the lower muffler shield (Figure 29) may damage the shield and cause the machine to fall, injuring you or bystanders.
Engine Maintenance 5. Separate the foam and paper elements (Figure 32). Engine Safety • Keep your hands, feet, face, other body parts, and clothing away from the muffler and other hot surfaces. Allow engine components to cool before performing maintenance. Do not change the engine governor speed or overspeed the engine. • g333887 Figure 32 Servicing the Air Cleaner 1. Paper element Service Interval: Every 25 hours—Clean the air-cleaner foam element (more often in dusty, dirty conditions).
Servicing the Paper Air-Cleaner Element Servicing the Engine Oil Service Interval: Every 100 hours or yearly, whichever comes first—Replace the paper air-cleaner element (more often in dirty or dusty conditions). Engine-Oil Specifications 1. Oil Type: Detergent oil (including synthetic) of API service SJ or higher Crankcase Capacity: 1.9 L (64 fl oz) with oil filter Clean the paper element by tapping it gently to remove dust. Viscosity: See the table below.
g225280 Figure 35 g365791 Figure 34 5. Note: Ensure that the oil-filter gasket touches Changing the Engine Oil and Oil Filter the engine and then turn the filter an extra 3/4 turn. Service Interval: Every 100 hours or yearly, whichever comes first—Change the engine oil and oil filter (more often in dirty or dusty conditions). 1. Park the machine on a level surface to ensure that the oil drains completely. 2.
g365790 Figure 37 7. Dispose of the used oil at a recycling center. g027477 Figure 36 6. Servicing the Spark Plug Service Interval: Every 100 hours or yearly, whichever comes first—Check the spark plug(s). Every 200 hours/Every 2 years (whichever comes first)—Replace the spark plug(s). 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 37).
Cleaning the Blower Housing Service Interval: Every 100 hours/Yearly (whichever comes first) To ensure proper cooling, ensure that the grass screen, cooling fins, and other external surfaces of the engine are kept clean at all times. g027478 Figure 38 Checking the Spark Plug Clean the cooling fins and external surfaces as necessary. Make sure that the cooling shrouds are installed. Torque the blower housing screws to 7.5 N∙m (5.5 ft-lb). Important: Do not clean the spark plug(s).
Fuel System Maintenance DANGER g365941 In certain conditions, fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property. Refer to Fuel Safety (page 13) for a complete list of fuel related precautions. Replacing the In-Line Fuel Filter Service Interval: Every 100 hours—Replace the in-line fuel filter. Never install a dirty filter after removing it from the fuel line. 1.
Electrical System Maintenance WARNING Incorrectly removing the cables from battery could damage the machine and cables, causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. Electrical System Safety • Disconnect the cable from the negative terminal of • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. the battery before repairing the machine.
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/circuit for a malfunction or short. 1. 2. Remove the battery from the chassis; refer to Removing the Battery (page 36). Fuse type: Charge the battery for a minimum of 1 hour at 6 to 10 A.
Drive System Maintenance 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 45). Check the tires when they are cold to get the most accurate pressure reading. g294417 Figure 46 1. Brake-link arm on the electric brake control module 2.
Belt Maintenance Inspecting the Belts Service Interval: Every 25 hours—Check the belts for wear or cracks. Replace the belt if it is worn. The signs of a worn belt include squealing while the belt is rotating; the blades slipping while cutting grass; and frayed edges, burn marks, and cracks on the belt. 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.
7. Route the new belt around the engine pulley and mower pulleys (Figure 50). 8. Using a spring-removal tool (Toro Part No. 92-5771), install the idler spring over the deck hook and place tension on the idler pulley and the mower belt (Figure 50). 9. Tighten the nut securing the wire form to the idler pulley . Note: Position the wire form against the idler arm as shown in Figure 49. 10. g336421 Figure 49 3. Idler pulley 1. Wire form 2. Nut 6. Using a spring-removal tool (Toro Part No.
Mower Maintenance Blade Safety • Inspect the blades periodically for wear or damage. • Use care when checking the blades. Wrap the blades or wear gloves, and use caution when servicing the blades. Only replace or sharpen the blades; never straighten or weld them. g006530 Figure 51 • On multi-bladed machines, take care as rotating one blade can cause other blades to rotate. 1. Cutting edge 3. Wear/slot forming 2. Curved area 4.
g014973 g014973 Figure 53 Figure 55 1. Blade (in position for measuring) 1. Opposite blade edge (in position for measuring) 2. Level surface 3. Measured distance between blade and the surface (A) 2. Level surface 3. Second measured distance between blade and surface (B) 4. Rotate the same blade 180 degrees so that the opposing cutting edge is now in the same position (Figure 54). A.
Installing the Blades 1. Install the blade onto the spindle shaft (Figure 56). Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. g027833 3. Curved washer 4. Blade bolt 3. Torque the blade bolt to 81 to 108 N∙m (60 to 80 ft-lb). 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.
g294044 g294046 Figure 59 1. Blades side to side Figure 60 3. Measure from the tip of the blade to the flat surface here. 1. Blades front to rear 2. Outside cutting edges 2. Outside cutting edges Checking the Front-to-Rear Blade Slope Leveling from Side to Side 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. 1.
g294195 Figure 63 g294196 Figure 61 1. Wood block—6.6 cm (2-5/8 inches) thick 6. 2. Wood block—7.3 cm (2-7/8 inches) thick Remove the hairpin cotter and washer from the lower lift-arm pin (Figure 62). 8. Install the washer and hairpin cotter (Figure 63). 9. Repeat steps 6 through 8 for the other side of the machine. 10. Check the side-to-side level again; repeat this procedure until the measurements are correct. 11.
3. To lower the front of the mower, loosen the adjustment nut. 4. 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; refer to Checking the Front-to-Rear Blade Slope (page 44). 5. Removing the Mower Deck When the front-to-rear blade slope is correct, check the side-to-side level of the mower again; refer to Checking the Side-to-Side Level (page 43). 1.
8. Attach the front support rod to the mower deck with the clevis pin and hairpin cotter (Figure 65). 9. Install the mower belt onto the engine pulley; refer to Replacing the Mower Belt (page 39). Replacing the Grass Deflector Service Interval: Before each use or daily—Inspect the grass deflector for damage. WARNING An uncovered discharge opening could allow the machine to throw objects toward you or bystanders, resulting in serious injury. Also, contact with the blade could occur.
6. Place the spring on the rod, with end wires down, and between the grass deflector brackets. Cleaning 7. Slide the rod through the second grass-deflector pivot (Figure 67). 8. Insert the rod at the front of the grass deflector into the short standoff on the deck. Washing the Underside of the Mower Deck 9. Secure the rear end of the rod into the mower with a nut (3/8 inch) as shown in Figure 67. Service Interval: After each use—Clean the mower-deck housing.
7. Disengage the blade-control switch, shut off the engine, remove the key, and wait for all moving parts to stop. 8. Turn the water off and remove the coupling from the washout fitting. Storage Storage Safety • Shut off the engine, remove the key, and wait for all moving parts to stop before you leave the operator’s position. Allow the machine to cool before adjusting, servicing, cleaning, or storing it. Note: If the mower is not clean after 1 washing, soak it and let it stand for 30 minutes.
Storing the Battery Note: Run the machine with the blade-control switch (PTO) engaged and the engine at high idle for 2 to 5 minutes after washing. 12. Check the condition of the blades; refer to Servicing the Cutting Blades (page 41). 13. Prepare the machine for storage for over 30 days as follows: A. Run the engine to distribute conditioned fuel through the fuel system for 5 minutes. C.
Troubleshooting Problem Possible Cause The fuel tank is showing signs of collapsing or the machine is frequently showing signs of running out of fuel. 1. The air-cleaner paper element clogged. The engine overheats. 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.
Problem The machine does not drive. The machine vibrates abnormally. The cutting height is uneven. The blades do not rotate. Possible Cause Corrective Action 1. The bypass valves are open. 1. Close the tow valves. 2. The traction belts are worn, loose, or broken. 3. The traction belts are off the pulleys. 4. The transmission has failed. 2. Contact an Authorized Service Dealer. 1. The cutting blade(s) is/are bent or unbalanced. 1. Install new cutting blade(s). 2. The blade mounting bolt is loose.
Schematics g307974 Electrical Diagram 139-2356 (Rev.
Notes:
Notes:
California Proposition 65 Warning Information What is this warning? You may see a product for sale that has a warning label like the following: WARNING: Cancer and Reproductive Harm—www.p65Warnings.ca.gov. What is Prop 65? Prop 65 applies to any company operating in California, selling products in California, or manufacturing products that may be sold in or brought into California.
