Form No. 3441-410 Rev A TimeCutter® MX4275 Riding Mower Model No. 75747—Serial No. 400000000 and Up Model No. 75747TA—Serial No. 400000000 and Up Model No. 75747W—Serial No. 400000000 and Up Register at www.Toro.com.
its intended use could prove dangerous to you and bystanders. 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.
Pushing the Machine by Hand .......................... 24 Transporting the Machine ................................. 25 Maintenance ........................................................... 27 Maintenance Safety.......................................... 27 Recommended Maintenance Schedule(s) ........... 27 Pre-Maintenance Procedures .............................. 28 Raising the Machine ......................................... 28 Lubrication ..........................................................
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. • 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.
decal131-1097 131-1097 1. Oil drain decal139-2388 139-2388 1. Slow 2. Hauling 3. Fast 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. decal139-2391 139-2391 1.
decal139-2395 139-2395 1. Parking brake 4. Neutral 2. Fast 3. Slow 5. Reverse 6. Traction controls decal139-2397 139-2397 decal139-2392 139-2392 decal139-2394 139-2394 1. Traction controls 2. Fast 3. Slow 4. Neutral 5. Reverse 6.
decal132-0869 132-0869 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 g334501 Figure 4 1. Engine 4. Motion-control levers 7. Height-of-cut lever 10. Control panel 2. Operator seat 5. Front caster wheel 8. Deflector 11. MyRide™ adjustment lever 3. Fuel-tank cap 6. Smart Speed™ lever 9. Rear drive wheel Controls Control Panel Become familiar with all the controls before you start the engine and operate the machine. g293303 Figure 5 10 1. Throttle control 3. Blade-control switch (power takeoff) 2. Choke control 4.
Key Switch The key switch, used to start and shut off the engine, has 3 positions: OFF, RUN, and START (Figure 5). Refer to Starting the Engine (page 19). Throttle Control The throttle controls the engine speed, and it has a continuous-variable setting from the SLOW to FAST position (Figure 5). Choke Control Use the choke control to start a cold engine (Figure 5). g292100 Figure 6 Blade-Control Switch (Power Takeoff) 1.
Fuel Safety Operation • Fuel is extremely flammable and highly explosive. Note: Determine the left and right sides of the machine from the normal operating position. Before Operation Before Operation Safety General Safety • Do not allow children or untrained people to operate or service the machine. Local regulations may restrict the age of the operator. The owner is responsible for training all operators and mechanics.
Adding Fuel Recommended Fuel Type Unleaded gasoline Minimum octane rating 87 (US) or 91 (research octane; outside the US) Ethanol No more than 10% by volume Methanol None MTBE (methyl tertiary butyl ether) Less than 15% by volume Oil Do not add to the fuel Use only clean, fresh (no more than 30 days old), fuel from a reputable source.
Understanding the Safety-Interlock System Positioning the Seat 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). 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.
g333846 g292102 Figure 11 Figure 9 1. MyRide adjustment lever 3. Increase seat suspension 2. Decrease seat suspension 3. Tighten both bolts to secure the control lever in the new position. 4. Repeat the adjustment for the other control lever. Adjusting the Motion-Control Levers During Operation Adjusting the Height During Operation Safety You can adjust the motion-control levers higher or lower for maximum comfort (Figure 10).
• Start the engine with your feet well away from the • Do not mow in reverse unless it is absolutely • • • • • • • • • • • necessary. Always look down and behind you before moving the machine in reverse. Use extreme care when approaching blind corners, shrubs, trees, or other objects that may block your view. Stop the blades whenever you are not mowing.
embankments, water, or other hazards. The machine could suddenly roll over if a wheel goes over the edge or the edge collapses. Keep a safe distance (twice the width of the machine) between the machine and any hazard. Use a walk-behind machine or a hand trimmer to mow the grass in these areas. • Avoid starting, stopping, or turning the machine on slopes. Avoid making sudden changes in speed or direction; turn slowly and gradually.
Operating the Mower Operating the Throttle Blade-Control Switch (PTO) You can move the throttle control between the FAST and SLOW positions (Figure 17). 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 17 g008945 Figure 14 Note: Always engage the blades with the throttle in Operating the Choke the FAST position (Figure 15).
Starting the Engine Shutting Off the Engine 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. 1. Disengage the blades by moving the blade-control switch to the OFF position. 2. Move the motion-control levers outward to the PARK position. 3.
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 sometime for you to adapt to how it moves. 1. Move the levers to the center, unlocked position. 2. To go backward, slowly pull the motion-control levers rearward (Figure 22).
2. Disengage the blade-control switch. 3. Adjust the lever to the desired position. Using the Side Discharge 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 24. 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 24).
Operating Tips 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. Using the 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 deck in uncut grass.
After Operation 5. After Operation Safety Turn the ignition key on and disengage the parking brake by moving 1 motion-control lever out of the PARK position. Note: Do not start the machine. General Safety • Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operator’s position. Allow the machine to cool before servicing, adjusting, fueling, cleaning, or storing it.
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 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 27). 4. Back the machine up the ramp (Figure 28). g027995 Figure 28 1. Back the machine up the ramp. 2. Drive the machine forward down the ramp. 5. Shut off the engine, remove the key, and engage the parking brake. 6.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Maintenance Safety • Never tamper with safety devices. Check their • 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.
Important: Refer to your engine owner's manual for additional maintenance procedures. CAUTION If you leave the key in the switch, someone could accidently start the engine and seriously injure you or other bystanders. Shut off the engine and remove the key from the switch before you perform any maintenance. Pre-Maintenance Procedures Lubrication Raising the Machine Service Interval: Every 25 hours—Grease the caster wheel bearings. Use jackstands to support the machine when you raise it.
Engine Maintenance 5. Separate the foam and paper elements (Figure 33). Engine Safety • Keep your hands, feet, face, clothing, and other body parts 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 33 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 36 g194611 Figure 35 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.
g194610 Figure 38 7. g027477 Figure 37 6. 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 38). 32 Dispose of the used oil at a recycling center.
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). Ensure that the air gap between the center and side electrodes is correct before installing the spark plug. Use a spark plug wrench for removing and installing the spark plug and a gapping tool or feeler gauge to check and adjust the air gap. Install a new spark plug if necessary.
Fuel System Maintenance DANGER 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. g305646 Refer to Fuel Safety (page 12) 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 battery before repairing the • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. machine. Disconnect the negative terminal first and the positive last.
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 35). 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 You can manually release the electric brake by rotating the link arms forward. Once the electric brake is energized, the brake resets. Service Interval: Every 25 hours—Check tire pressure. 1. Turn the key to the the key. 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 46).
3. Belt Maintenance Locate the tracking-adjustment bolt near the motion-control lever on the particular side that needs adjusting (Figure 48). Inspecting the Belts Note: Raise the seat for easier access to the adjustment bolt. 4. Service Interval: Every 25 hours—Check the belts for wear or cracks. Rotate the bolt to decrease the speed for that particular wheel. Replace the belt if it is worn.
Mower Maintenance WARNING The spring is under tension when installed and can cause personal injury. Blade Safety Be careful when removing the belt. • 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. • On multi-bladed machines, take care as rotating one blade can cause other blades to rotate.
g006530 Figure 51 1. Cutting edge 3. Wear/slot forming 2. Curved area 4. Crack g014973 Figure 53 1. Blade (in position for measuring) Checking for Bent Blades 2. Level surface 3. Measured distance between blade and the surface (A) Note: The machine must be on a level surface for the following procedure. 4. 1. Raise the mower deck to the highest height-of-cut position. 2.
g014973 Figure 55 g027833 1. Opposite blade edge (in position for measuring) Figure 56 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 3 mm (1/8 inch), replace the blade with a new blade; refer to Removing the Blades (page 41) and Installing the Blades (page 42). Sharpening the Blades 1.
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. 2. Install the curved washer (cupped side toward the blade) and the blade bolt (Figure 56). 3. Torque the blade bolt to 81 to 108 N∙m (60 to 80 ft-lb). g294044 Leveling the Mower Deck Figure 59 1.
g294046 Figure 60 1. Blades front to rear 3. Measure from the tip of the blade to the flat surface here. g308865 Figure 61 1. Wood block—6.6 cm (2-5/8 inches) thick 2. Outside cutting edges 6. Leveling from Side to Side 1. Move to the left side of the machine. 2. Set the anti-scalp rollers to the top holes or remove them completely for this procedure; refer to Adjusting the Anti-Scalp Rollers (page 22). 3.
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 42). 5. 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 42). g294195 Figure 63 Removing the Mower Deck 8.
6. On 1 side of the machine, remove the washer and hairpin cotter from the deck pin (Figure 66). 7. Repeat steps 5 and 6 for the other side of the machine. 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 38). Replacing the Grass Deflector Service Interval: Before each use or daily—Inspect the grass deflector for damage.
Cleaning 6. Place the spring on the rod, with end wires down, and between the grass deflector brackets. 7. Slide the rod through the second grass-deflector bracket (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.
11. Check the condition of the blades; refer to Servicing the Cutting Blades (page 39). 12. Prepare the machine for storage for over 30 days as follows: A. Storing the Battery Add fuel stabilizer/conditioner to fresh fuel in the tank. Follow mixing instructions from the fuel stabilizer manufacturer. Do not use an alcohol-based stabilizer (ethanol or methanol). B. 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.
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.
