Form No. 3425-432 Rev C TimeCutter® Riding Mowers Model No. Model No. Model No. Model No. Model No. Model No. Model No. Model No. Model No. Register at www.Toro.com. Original Instructions (EN) 74726—Serial No. 74760—Serial No. 74766—Serial No. 74768—Serial No. 74772—Serial No. 74773—Serial No. 74774—Serial No. 74777—Serial No. 74778—Serial No.
Gross or Net Torque: The gross or net torque of this engine was laboratory rated by the engine manufacturer in accordance with the Society of Automotive Engineers (SAE) J1940 or J2723. As configured to meet safety, emission, and operating requirements, the actual engine torque on this class of mower will be significantly lower. Please refer to the engine manufacturer’s information included with the machine. injury and product damage. You are responsible for operating the product properly and safely.
Contents Drive System Maintenance .................................. 46 Checking the Tire Pressure............................... 46 Releasing the Electric Brake ............................. 47 Belt Maintenance ................................................ 47 Replacing the Mower-Deck Belt........................ 47 Mower Maintenance............................................. 49 Blade Safety ..................................................... 49 Servicing the Cutting Blades .........................
General Safety Safety This machine is capable of amputating hands and feet and of throwing objects. Toro designed and tested this lawn mower to offer reasonably safe service; however, failure to comply with safety instructions may result in injury or death. The following instructions are from ANSI standard B71.1-2017. Safety Alert Symbol • Read, understand, and follow all instructions and warnings in the Operator’s Manual and other training material, on the machine, engine, and attachments.
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), 137 cm (54 inch), or 152 cm (60 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.
Decal 106-8717 is for non-MyRide models with 107 cm (42 inch), 127 cm (50 inch), or 137 cm (54 inch) decks. decal119-8815 119-8815 decal106-8717 106-8717 1. Read the instructions before servicing or performing maintenance. 2. Check tire pressure every 25 operating hours. 1. Parking position 4. Neutral 2. Fast 3. Slow 5. Reverse Decal 119-8870 is for is for models with 107 cm (42 inch) mower decks or the MyRide suspension system. 3. Grease every 25 operating hours. 4.
Decal 119-8871 is for non-MyRide models with 127 cm (50 inch), 137 cm (54 inch), or 152 cm (60 inch) decks. decal119-8871 119-8871 1. Height of cut 2. 3. 4. 5. 6. 7. 8.
decal121-0772 121-0772 1. Fast 2. Continuous variable setting 4. Choke 5. Power take-off (PTO), Blade control switch 3.
decal131-1097 131-1097 1. Oil drain decal121-2989b 121-2989 1. Bypass lever position for pushing the machine 2. Bypass lever position for operating the machine Decal 131-3947 does not apply to models without the MyRide suspension system or model 74773. decal131-3947 131–3947 1. Trim—slow 2. Tow—medium 3.
Decal 132-0869 is for models with 107 cm (42 inch), 127 cm (50 inch), or 137 cm (54 inch) decks. 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.
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 baffle—do not operate the machine with an open deck; use a bagger or a baffle. 4. Entanglement hazard—keep away from moving parts; keep all guards and shields in place.
Decal 136-4245 is for models with the MyRide suspension system. Decal 136-5596 is for models with the MyRide suspension system or 152 cm (60 inch) decks. decal136-5596 136-5596 1. Check the tire pressure every 25 operating hours. 4. Check the tire pressure every 25 operating hours. 2. Engine oil 5. Read the Operator's Manual before performing maintenance. 3. Check the tire pressure every 25 operating hours. Decal 136-9186 is for models with 152 cm (60 inch) decks. decal136-4245 136-4245 3.
Product Overview g028166 Figure 5 1. Deflector 4. Height-of-cut lever 7. Footrest 2. Rear drive wheel 5. Operator seat 8. Fuel-tank cap 10. Engine 11. Engine guard 3. Motion-control levers 6. Smart Speed™ lever 9. Control panel 12. Front caster wheel Controls Key Switch Become familiar with all the controls before you start the engine and operate the machine. The key switch, used to start and shut off the engine, has 3 positions: OFF, RUN, and START . Refer to Starting the Engine (page 26).
Motion-Control Levers Height-of-Cut Lever Use the motion-control levers to drive the machine forward, reverse, and turn either direction (Figure 5). 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 29).
Operation Pre-Start Note: Determine the left and right sides of the Fill fuel tank on level ground. See Fuel Recommendations in the Specifications section for additional gasoline information. machine from the normal operating position. Do Not add oil to gasoline. Before Operation Do Not overfill fuel tank. Fill the fuel tank to the bottom of the filler neck. The empty space in the tank allows gasoline to expand. Overfilling may result in fuel leakage or damage to the engine or emission system.
Fuel Safety DANGER In certain conditions during fueling, static electricity can be released causing a spark which can ignite gasoline vapors. A fire or explosion from gasoline can burn you and others and cause property damage. • Always place gasoline containers on the ground away from your vehicle before filling.
Adding Fuel Note: Do not fill the fuel tank completely full. The empty space in the tank allows the fuel to expand. Recommended Fuel • For best results, use only clean, fresh (less than 30 days old), unleaded gasoline with an octane rating of 87 or higher ((R+M)/2 rating method). • Ethanol: Gasoline with up to 10% ethanol (gasohol) or 15% MTBE (methyl tertiary butyl ether) by volume is acceptable. Ethanol and MTBE are not the same. Gasoline with 15% ethanol (E15) by volume is not approved for use.
Using the Safety-Interlock System motion-control levers to the center, unlocked position, engage the blade-control switch, and rise slightly from the seat; the engine should shut off. WARNING Positioning the Seat If the safety-interlock switches are disconnected or damaged, the machine could operate unexpectedly, causing personal injury. For Models 74726 and 74766 The seat can move forward and backward.
For Models 74760, 74774, and 74777 For Models 74772 and 74773 The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable (Figure 12). The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable (Figure 11).
Adjusting the MyRide™ Suspension System For Models 74768 and 74778 The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable (Figure 13). For Machines with the MyRide™ Suspension System Note: To make adjusting the MyRide™ suspension system easier, pivot the seat forward and install the prop rod to take weight off the shock assemblies. The MyRide™ suspension system adjusts to provide a smooth and comfortable ride.
Adjusting the Motion-Control Levers Adjusting the Height You can adjust the motion-control levers higher or lower for maximum comfort (Figure 16). g027252 Figure 16 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. Loosen the lower bolt just enough to pivot the control lever forward or rearward (Figure 16). 3.
During Operation • Be sure all drives are in neutral and parking brake • During Operation Safety • General Safety The operator must use their full attention when operating the machine. Do Not engage in any activity that causes distractions; otherwise, injury or property damage may occur. • WARNING Operating engine parts, especially the muffler, become extremely hot. Severe burns can occur on contact and debris, such as leaves, grass, brush, etc. can catch fire.
• • 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. – Whenever you leave the mower. Do Not leave a running machine unattended. Stop engine, wait for all moving parts to stop: – Before refueling. – Before dumping the grass catcher. – Before making height adjustments. Tragic accidents can occur if the operator is not alert to the presence of children.
Operating the Mower Operating the Throttle Blade-Control Switch (PTO) You can move the throttle control between FAST and SLOW positions (Figure 21). 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) g187517 Figure 21 g008945 Figure 18 Note: Always engage the blades with the throttle in Operating the Choke the FAST position (Figure 19).
Starting the Engine Shutting Off the Engine Note: A warm or hot engine may not require choking. 1. Disengage the blades by moving the blade-control switch to the OFF position (Figure 23). 2. Engage the parking brake; refer to Park Position (page 15). 3. Move the throttle control to the FAST position. 4. Turn the key to the OFF position and remove the key. Important: Do not engage the starter for more than 5 seconds at a time.
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 26).
Tow This is the medium speed. The suggested uses for this speed are as follows: • Bagging • Mulching • Towing attachments Mow g239348 This is the fastest speed. The suggested uses for this speed are as follows: Figure 28 MyRide Machines • Normal mowing 1. Smart-speed lever • Moving the machine To change speeds, do the following: 1. Using the Side Discharge Move the motion-control levers to neutral and outward to the PARK position. 2. Disengage the blade-control switch. 3.
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 115 mm (4-1/2 inches) as shown in Figure 29. Machines with a 107 cm (42 inch), 127 cm (50 inch), or 137 cm (54 inch) Mower Deck Only Height of cut is controlled by the lever located to the right of the operating position (Figure 29). Whenever you change the height of cut, adjust the height of the anti-scalp rollers.
Operating Tips 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. Always try to have 1 side of the mower deck free from uncut grass, which allows air to be drawn into the mower deck. g024312 Figure 31 1. Flange nut 4. Bushing 2. Spacer 5.
After Operation 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. After Operation Safety Keeping the Underside of the Mower Deck Clean General Safety • Park machine on level ground, disengage drives, Clean clippings and dirt from the underside of the mower deck after each use. If grass and dirt build up inside the mower deck, cutting quality will eventually become unsatisfactory.
on the down side of the slope and the ramp extends up the slope. This will minimize the ramp angle. WARNING Loading a machine onto a trailer or truck increases the possibility of tip-over and could cause serious injury or death. • Use extreme caution when operating a machine on a ramp. g027708 Figure 32 • Use only a full-width ramp; do not use individual ramps for each side of the machine. 1. Tie-down location • Secure a trailer to the towing vehicle with safety chains.
and loss of control. Reduce the towed weight and slow down. • Stopping distance increases with the weight of the towed load. Travel slowly and allow extra distance to stop. • Make wide turns to keep the attachment clear of the machine. 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 ignition key must be in the RUN position.
g017303 Figure 35 1. Bypass-lever locations 3. Lever position for pushing the machine 2. Lever position for operating the machine 6. When finished, ensure that the key has been returned to the STOP position to avoid draining the battery charge. Note: If the machine fails to move, the electric brake may still be engaged. You can release the electric brake manually if necessary; refer to Releasing the Electric Brake (page 47).
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 and filter. Before each use or daily • • • • • • Check the safety-interlock system. Check the air cleaner for dirty, loose, or damaged parts. Check the engine-oil level. Clean the air intake screen. Inspect the blades. Inspect the grass deflector for damage.
• Park machine on level ground, disengage drives, set parking brake, stop engine, remove key or disconnect spark plug wire. Wait for all movement to stop and allow the machine to cool before adjusting, cleaning or repairing. Never allow untrained personnel to service machine. • Disconnect battery or remove spark plug wire before making any repairs. Disconnect the negative terminal first and the positive last. Reconnect positive first and negative last.
Pre-Maintenance Procedures Lubrication Raising the Seat All Models without MyRide Ensure that the parking brake is engaged. Lift the seat forward. Service Interval: Every 25 hours—Grease all lubrication points (non-MyRide models only). You can access following components by raising the seat: Grease Type: No. 2 lithium grease Greasing the Bearings • Serial plate 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake.
Engine Maintenance Engine Safety • Shut off the engine before checking the oil or adding oil to the crankcase. • Keep your hands, feet, face, clothing, and other body parts away the muffler and other hot surfaces. 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.
Servicing the Foam Air-Cleaner Element Installing the Air Cleaner 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/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 41 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 44). Note: Ensure that the oil-filter gasket touches the engine and then turn the filter an extra 3/4 turn. g027799 g027477 Figure 44 6. g029570 Figure 43 41 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 45).
Removing the Spark Plug 1. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Clean the area around the base of the plug to keep dirt and debris out of the engine. 4. Remove the spark plug (Figure 46). g027478 Figure 46 g193530 Figure 45 7. Dispose of the used oil at a recycling center.
Installing the Spark Plug 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. Refer to Adding Fuel (page 18) for a complete list of fuel related precautions. Replacing the In-Line Fuel Filter g027960 Service Interval: Every 100 hours/Yearly (whichever comes first)—Check the in-line fuel filter.
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 44). 2.
Servicing the Fuses Drive System Maintenance 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. Checking the Tire Pressure Fuse type: • Main—F1 (30 A, blade-type) Service Interval: Every 25 hours—Check tire pressure. • Charge Circuit—F2 (25 A, blade-type) 1. Maintain the air pressure in the front and rear tires as specified. Uneven tire pressure can cause uneven cut.
Belt Maintenance Releasing the Electric Brake Replacing the Mower-Deck Belt You can manually release the electric brake by rotating the link arms forward. Once the electric brake is energized, the brake resets. 1. Turn the key to the the battery. 2. Locate the shaft on the electric brake where the brake link arms are connected (Figure 54). 3. Rotate the shaft forward to release the brake.
g014930 Figure 56 Mower Decks with 2 Blades 1. Idler pulley 4. Spring 2. Mower belt 5. Engine pulley 3. Outside pulley 6. Spring-removal tool g014931 Figure 57 Mower Decks with 3 Blades 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 57). 48 7.
Mower Maintenance Blade Safety A worn or damaged blade can break, and a piece of the blade could be thrown toward you or bystanders, resulting in serious personal injury or death. Trying to repair a damaged blade may result in discontinued safety certification of the product. g006530 Figure 58 • 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.
g014973 g014973 Figure 60 Figure 62 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 61). A.
Installing the Blades 1. Install the blade onto the spindle shaft (Figure 63). 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 47 to 88 N∙m (35 to 65 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.
g009682 Figure 66 Mower Decks with 2 Blades g027588 1. Blades side to side 3. Outside cutting edges 2. Sail area of the blade 4. Measure from the tip of the blade to the flat surface here. Figure 68 1. Hanger bracket 3. Rear nut 2. Side locking nut 9. Check the side-to-side adjustments again. Repeat this procedure until the measurements are correct. 10. Continue leveling the mower deck by checking the front-to-rear blade slope; refer to Adjusting the Front-to-Rear Blade Slope (page 52).
to 5/16 inch) lower than the rear blade tip (Figure 69 and Figure 70). g009658 Figure 69 Mower Decks with 2 Blades 1. Blades front to rear 2. Measure from the tip of the blade to the flat surface here. g014634 Figure 71 1. Adjusting rod 3. Locknut 2. Adjusting block 7. g009659 Figure 70 Mower Decks with 3 Blades 1. Blades front to rear 3. Measure from the tip of the blade to the flat surface here. 2. Outside cutting edges 5.
g005077 Figure 74 1. Mower deck 2. Hanger bracket 3. Rear lift rod g014635 Figure 72 1. Front support rod 2. Locking nut 5. Carefully lower the front of the mower deck to the ground. 6. For 60-inch decks, remove the 2 deck-lift springs (Figure 72). 9. Slide the mower deck out from underneath the machine. Installing the Mower g188405 7. Slide the mower deck rearward to remove the mower belt from the engine pulley. Note: Retain all parts for future installation. Figure 73 1.
Replacing the Grass Deflector Machines with Fabricated Mower Decks Only 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. Never operate the machine without the grass deflector, the discharge cover, or the grass-collection system in place. 1.
Inspect the grass deflector for damage before each use. Replace any damaged parts before use. 1. Remove the nut (3/8 inch) from the rod under the mower (Figure 77). g005192 Figure 77 g017618 Figure 76 1. Rod and spring assembly installed 2. Loop end of the spring installed into the notch in the deflector bracket 7. 3. Rod, short end, moved behind mower bracket 4. Short end, retained by mower bracket.
Cleaning 8. Turn the water off and remove the coupling from the washout fitting. Note: If the mower is not clean after 1 washing, Washing the Underside of the Mower Deck soak it and let it stand for 30 minutes. Then repeat the process. 9. Service Interval: After each use—Clean the mower-deck housing. Important: You can wash the machine with a mild detergent and water. Do not pressure wash the machine.
Storage the stabilizer manufacturer. Do not use an alcohol-based stabilizer (ethanol or methanol). Storage Safety Note: A fuel stabilizer/conditioner is most • Let the engine cool before storing the machine. • Do not store the machine or fuel near flames or effective when mixed with fresh fuel and used at all times. drain the fuel indoors. Cleaning and Storage 1. Disengage the blade-control switch (PTO), and engage the parking brake. 2.
Storing the Battery 1. Fully charge the battery. 2. Let the battery rest for 24 hours, then check the battery voltage. Note: If the battery voltage is below 12.6 V, repeat steps 1 and 2. 3. Disconnect the cables from the battery. 4. Check the voltage periodically to ensure that the voltage is 12.4 V or higher. Note: If the battery voltage is below 12.4 V, repeat steps 1 and 2. Battery Storage Tips • Store the battery in a cool, dry area in an upright position.
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. 5. Tighten the blade-mounting bolt. 6. Contact an Authorized Service Dealer. 1.
Schematics g028022 Electrical Diagram (Rev.
Notes:
