Form No. 3441-874 Rev A TimeCutter® MX 4275, 5075, or 5475 Riding Mower Model No. Model No. Model No. Model No. Model No. Model No. Model No. Register at www.Toro.com. Original Instructions (EN) 75745—Serial No. 407700000 and Up 75745TA—Serial No. 407530000 and Up 75745W—Serial No. 407200000 and Up 75754—Serial No. 407700000 and Up 75755—Serial No. 407700000 and Up 75755TA—Serial No. 407600000 and Up 75755W—Serial No.
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.
Introduction safety messages that you must follow to avoid accidents. This symbol will appear with the word Danger, Warning, or Caution. This rotary-blade, riding lawn mower is intended to be used by homeowners in residential applications. It is designed primarily for cutting grass on well-maintained lawns. Using this product for purposes other than its intended use could prove dangerous to you and bystanders.
Safety After Operation Safety ...................................... 24 Pushing the Machine by Hand .......................... 25 Transporting the Machine ................................. 25 Maintenance ........................................................... 28 Maintenance Safety.......................................... 28 Recommended Maintenance Schedule(s) ........... 28 Pre-Maintenance Procedures .............................. 30 Raising the Machine .........................................
Slope Indicator g011841 Figure 4 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. Decal 99-3943 is for models with 127 cm (50 inch) or 137 cm (54 inch) decks. 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.
decal132-0872 132-0872 decal112-9840 112-9840 3. Remove the ignition key and read the instructions before servicing or performing maintenance. 1. Read the Operator's Manual. 2. Height of cut 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.
decal139-2388 139-2388 1. Slow 2. Hauling 3. Fast decal139-2392 139-2392 decal139-2391 decal139-2394 139-2391 1. Fast 139-2394 2. Slow 1. Traction controls 2. Fast 3. Slow 8 4. Neutral 5. Reverse 6.
decal139-2397 139-2397 decal139-2395 139-2395 1. Parking brake 4. Neutral 2. Fast 3. Slow 5. Reverse 6. Traction controls 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.
Product Overview g292025 Figure 5 1. Engine 4. Motion-control levers 7. Deck-lift pedal (certain models only) 10. Rear drive wheel 2. Operator seat 5. Front caster wheel 8. Height-of-cut lever 11. Control panel 3. Fuel-tank cap 6. Smart Speed™ lever 9. Deflector 12.
Controls Park Position Become familiar with all the controls before you start the engine and operate the machine. Move the motion-control levers outward from the center to the PARK position when exiting the machine to engage the electric brake (Figure 21). Always position the motion-control levers into the PARK position when you stop the machine or leave it unattended. Control Panel MyRide™ Adjustment Lever Use the MyRide™adjustment lever to adjust the seat suspension (Figure 5).
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 25). Note: Determine the left and right sides of the machine from the normal operating position.
Fuel Safety compartment to help prevent fires. Clean up oil or fuel spills. • Fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property. Adding Fuel – To prevent a static charge from igniting the fuel, place the container and/or machine directly on the ground before filling, not in a vehicle or on an object. Recommended Fuel – Fill the fuel tank outdoors on level ground, in an open area, and when the engine is cold.
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.
Adjusting the MyRide™ Suspension 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 9). The MyRide™ suspension system adjusts to provide a smooth and comfortable ride. Position the suspension system where you are most comfortable. The slots for the suspension adjustment have detent positions for reference.
Adjusting the Motion-Control Levers During Operation During Operation Safety Adjusting the Height General Safety You can adjust the motion-control levers higher or lower for maximum comfort (Figure 11). • The owner/operator can prevent and is responsible • • • g333847 Figure 11 • Adjusting the Tilt 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.
• • • • • • • Before backing up or turning the machine, look – Shut off the engine and remove the key. – Wait for all moving parts to stop. Operate the engine only in well-ventilated areas. Exhaust gases contain carbon monoxide, which is lethal if inhaled. Never leave a running machine unattended. Attach towed equipment to the machine only at the hitch point.
Operating the Mower Blade-Control Switch (PTO) These can change the stability of the machine and cause a loss of control. Follow directions for counterweights. • If possible, keep the deck lowered to the ground The blade-control switch (PTO) starts and stops the mower blades and any powered attachments. while operating on slopes. Raising the deck while operating on slopes can cause the machine to become unstable.
Operating the Throttle Starting the Engine You can move the throttle control between the FAST and SLOW positions (Figure 18). Note: A warm or hot engine may not require choking. Always use the FAST position when engaging the PTO. 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 Shutting Off the Engine 1. Disengage the blades by moving the blade-control switch to the OFF position (Figure 20). 2. Move the motion-control levers outward to the PARK position. 3. Move the throttle control to the FAST position. 4. Turn the key to the OFF position and remove the key. 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.
Driving Backward 1. Move the levers to the center, unlocked position. 2. To go backward, slowly pull the motion-control levers rearward (Figure 23). 2. Disengage the blade-control switch. 3. Adjust the lever to the desired position. The following are only recommendations for use. Adjustments vary by grass type, moisture content, and the height of the grass.
Using the Side Discharge Adjusting the Height of Cut The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. 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 25. 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 25).
motion-control levers outward to the PARK position. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Adjust the anti-scalp rollers to 1 of the following positions: • 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 26).
After Operation slows in mid summer, mow less frequently. If you cannot mow for an extended period, first mow at a high cutting height, then mow again 2 days later at a lower height setting. After Operation Safety Using a Slower Cutting Speed General Safety To improve cut quality, use a slower ground speed in certain conditions. • Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operator’s position.
Pushing the Machine by Hand Important: Always push the machine by hand. Do not tow the machine, because towing may damage it. 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. Pushing the Machine 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.
WARNING Driving on the street or roadway without turn signals, lights, reflective markings, or a slow-moving-vehicle emblem is dangerous and can lead to accidents, causing personal injury. Do not drive the machine on a public street or roadway. Selecting a Trailer WARNING Loading a machine onto a trailer or truck increases the possibility of tip-over and could cause serious injury or death (Figure 29). • Use only a full-width ramp; do not use individual ramps for each side of the machine.
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 29). 4. Back the machine up the ramp (Figure 30). g027995 Figure 30 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 proper operation regularly. • 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.
Maintenance Service Interval Every 300 hours Before storage Maintenance Procedure • Check and adjust the valve clearance. Contact an Authorized Service Dealer. • Charge the battery and disconnect the battery cables. • Perform all maintenance procedures listed above before storage. • Paint any chipped surfaces. CAUTION If you leave the key in the switch, someone could accidently start the engine and seriously injure you or other bystanders.
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. Grease Type: No. 2 lithium grease Greasing the Bearings 1. Supporting the machine on the lower muffler shield (Figure 32) may damage the shield and cause the machine to fall, injuring you or bystanders.
Engine Maintenance 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. g027800 Servicing the Air Cleaner Service Interval: Before each use or daily Note: Service the air cleaner more frequently (every few hours) if operating conditions are extremely dusty or sandy. Removing the Foam and Paper Elements 1.
Installing the Air Cleaner Servicing the Foam Air-Cleaner Element 1. Note: Ensure that you do not damage the elements. Service Interval: Every 25 hours/Monthly (whichever comes first)—Clean the air-cleaner foam element (more often in dusty, dirty conditions). Every 100 hours or yearly, whichever comes first—Replace the air-cleaner foam element (more often in dusty, dirty conditions). 1. Wash the foam element in liquid soap and warm water. When the element is clean, rinse it thoroughly. 2.
Servicing the Engine Oil Engine-Oil Specifications Oil Type: Detergent oil (API service SF, SG, SH, SJ, or SL) Crankcase Capacity: 2.4 L (81 fl oz) with oil filter Viscosity: See the table below. g029683 Figure 37 Checking the Engine-Oil Level Service Interval: Before each use or daily Note: Check the oil when the engine is cold. Important: If you overfill or underfill the engine crankcase with oil and run the engine, you may damage the engine. 1. 2.
5. Change the engine-oil filter (Figure 40). Note: Ensure that the oil-filter gasket touches the engine and then turn the filter an extra 3/4 turn. g027799 g027477 Figure 40 6. g029570 Figure 39 34 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 41).
g027478 Figure 42 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. 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. g235264 Figure 41 7. Set the gap to 0.75 mm (0.03 inch). Dispose of the used oil at a recycling center.
Cleaning the Cooling System 1. Fuel System Maintenance Park the machine on a level surface, disengage the blade-control switch, and move the motion-control levers outward to the PARK position. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Remove the air filter from the engine. 4. Remove the engine shroud. 5. To prevent debris entering the air intake, install the air filter to the filter base. 6.
Electrical System Maintenance Electrical System Safety • Disconnect the battery before repairing the g027939 machine. Disconnect the negative terminal first and the positive last. Connect the positive terminal first and the negative last. • Charge the battery in an open, well-ventilated area, away from sparks and flames. Unplug the charger before connecting or disconnecting the battery. Wear protective clothing and use insulated tools.
Charging the Battery 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. Service Interval: Before storage—Charge the battery and disconnect the 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 37). 2.
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 48). Check the tires when they are cold to get the most accurate pressure reading. g294417 Figure 49 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.
WARNING The spring is under tension when installed and can cause personal injury. Be careful when removing the belt. g298026 Figure 53 Mower decks with 3 blades g298025 Figure 52 Mower decks with 2 blades 1. Idler pulley 4. Spring 2. Mower belt 5. Engine pulley 3. Outside pulley 6. Spring-removal tool 41 1. Idler pulley 4. Spring 2. Mower belt 5. Engine pulley 3. Outside pulley 6. Spring-removal tool 6. Route the new belt around the engine pulley and mower pulleys (Figure 52 or Figure 53).
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 54 • 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 56 Figure 58 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 57). A.
Installing the Blades 1. Install the blade onto the spindle shaft (Figure 59). 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.
3. Set the height of cut to 76 mm (3 inches). 4. Carefully rotate the blades so they are facing front to rear (Figure 64). 5. Measure from the tip of the front blade to the flat surface and the tip of the rear blade to the flat surface (Figure 64 or Figure 65). Note: If the front blade tip is not 1.6 to 7.9 mm (1/16 to 5/16 inch) lower than the rear blade tip, continue to the Leveling from Side to Side (page 46) procedure. g294044 Figure 62 Mower Decks with 2 Blades 1. Blades side to side 3.
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. Set the height-of-cut lever to the 76 mm (3 inch) position; refer to Adjusting the Height of Cut (page 22). 4. Place 2 blocks, each having a thickness of 6.
3. 4. 5. g294195 Removing the Mower Deck Figure 69 1. 8. Install the washer and hairpin cotter (Figure 69). 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. Continue leveling the mower deck by checking the front-to-rear blade slope; refer to Checking the Front-to-Rear Blade Slope (page 45). 2. 3. 4. Adjusting the Front-to-Rear Blade Slope 1.
8. Attach the front support rod to the mower deck with the clevis pin and hairpin cotter (Figure 71). 9. Install the mower belt onto the engine pulley; refer to Replacing the Mower Belt (page 40). 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.
Cleaning 7. Slide the rod through the second grass-deflector bracket (Figure 73). 8. Insert the rod at the front of the grass deflector into the short standoff on the deck. 9. Secure the rear end of the rod into the mower with a nut (3/8 inch) as shown in Figure 73. Washing the Underside of the Mower Deck Important: The grass deflector must be Service Interval: After each use—Clean the mower-deck housing. spring-loaded in the down position.
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 42). 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.
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.
