Form No. 3398-974 Rev A TimeCutter® MX 5050 Riding Mower Model No. 74770—Serial No. 316000001 and Up Register at www.Toro.com.
Customer Service and have the model and serial numbers of your product ready. Figure 1 identifies the location of the model and serial numbers on the product. Write the numbers in the space provided. WARNING CALIFORNIA Proposition 65 Warning This product contains a chemical or chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Contents Replacing the Grass Deflector ..................................42 Mower Belt Maintenance ............................................43 Inspecting the Belts ................................................43 Replacing the Mower Belt ........................................43 Cleaning ...................................................................44 Washing the Underside of the Mower ........................44 Storage ........................................................................
Safety remove the key before cleaning the machine, removing the grass catcher or unclogging the discharge chute. • Operate the machine only in daylight or good artificial To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety-alert symbol, which means Caution, Warning, or Danger—personal safety instruction. Failure to comply with the instruction may result in personal injury or death. light.
Service • Do not try to stabilize the machine by putting your foot on the ground. Safe Handling of Gasoline • Do not mow near drop-offs, ditches, steep banks, or • Never allow children to operate the machine. To avoid personal injury or property damage, use extra care when handling gasoline and other fuels. They are flammable and the vapors are explosive. • Extinguish all cigarettes, cigars, pipes, and other sources of ignition. • Use only an approved container.
• Check for proper brake operation frequently. Adjust and service them as required. • Maintain or replace safety and instruction decals as necessary. • Use only genuine Toro replacement parts to ensure that the original standards are maintained. Toro Riding Mower Safety The following list contains safety information specific to Toro products or other safety information that you must know that may not be included in the ANSI standards.
Slope Indicator G011841 Figure 3 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 15 degrees. Use the slope chart to determine the degree of slope of hills before operating. Do not operate this machine on a slope greater than 15 degrees. Fold along the appropriate line to match the recommended slope. 2. Align this edge with a vertical surface, a tree, building, fence pole, etc. 3.
Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. 93-7009 1. Warning—do not operate the mower with the deflector up or removed; keep the deflector in place. 2. Cutting/dismemberment hazard of hand or foot, mower blade—stay away from moving parts. 112-9840 1. Read the Operator's Manual. 3.
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. 119-8870 1. Height of cut Manufacturer's Mark 1. Indicates the blade is identified as a part from the original machine manufacturer.
131-3947 1. Trim—slow 2. Tow—medium 3. Mow—fast 131-4162 1. Fast 2. Continuous-variable setting 3. Slow 4.
132-0869 1. Warning—read the Operator's Manual. 5. Ramp tipping 3. Cutting hazard of hand, hazard—when loading mower blade; pinching onto a trailer, do not use hazard of hand, belt—keep dual ramps; only use a hands and feet away from single ramp wide enough moving parts; keep all for the machine and that guards and shields in place. has an incline less than 15 degrees; back up the ramp (in reverse) and drive forward off the ramp. 2.
Product Overview Figure 4 1. Deflector 5. Motion-control levers 2. Rear drive wheel 6. Seat 10. Engine guard 9. Engine 14. Smart Speed™ lever 13. Anti-scalp roller 3. Height-of-cut lever 7. Foot-assist lever (certain models only) 11. Mower deck 15. Hydraulic reservoir 4. Control panel 8. Fuel-tank cap 12. Front caster wheel Controls Ignition Switch Become familiar with all the controls in Figure 4 and Figure 5 before you start the engine and operate the machine.
Hour Meter Motion-Control Levers and Park Position The hour meter records the number of hours when you are in the seat and the ignition switch is in the ON position (Figure 7). The motion-control levers are speed-sensitive controls of independent wheel motors. Moving a lever forward or backward turns the wheel on the same side forward or in reverse; the wheel speed is proportional to the amount you move the lever.
Operation DANGER In certain conditions during fueling, static electricity can be released, causing a spark that can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can damage property. • Always place gasoline containers on the ground away from your vehicle before filling.
Think Safety First of varnish deposits in the fuel system, use fuel stabilizer at all times. Please read all safety instructions and symbols in the safety section. Knowing this information could help you or bystanders avoid injury. Filling the Fuel Tank Note: Ensure that the engine is shut off and the motion-control levers are in the PARKED position. DANGER Note: You can use the fuel window to verify the presence of gasoline before filling the tank (Figure 8).
Testing the Safety-Interlock System CAUTION This machine produces sound levels in excess of 85 dBA at the operator’s ear and can cause hearing loss through extended periods of exposure. Test the safety-interlock system before you use the machine each time. If the safety system does not operate as described below, have an Authorized Service Dealer repair the safety system immediately. Wear hearing protection when operating this machine. 1.
Starting the Engine A B A Important: Do not engage the starter for more than 10 seconds at a time. If the engine fails to start, wait 60 seconds between attempts. Failure to follow these instructions can damage the starter motor. B C C D g027582 Figure 12 Disengaging the Blades 1 E F g027538 Figure 13 1. Blade-control switch—Off g027578 Figure 11 Stopping the Engine 1. Disengage the blades by moving the blade-control switch to the OFF position (Figure 13). Operating the Blades 2.
Driving the Machine Driving Forward 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. Note: Always use caution when backing up and turning. 1. Move the levers to the center, unlocked position. 2.
Driving Backward To change speeds, do the following: 1. Move the motion-control levers to neutral and outward to the PARK position. Note: Always use caution when backing up and turning. 1. Move the levers to the center, unlocked position. 2. Disengage the blade-control switch. 2. To go backward, look behind you and down, as you slowly pull the motion-control levers rearward (Figure 16). 3. Adjust the lever to the desired position. The following are only recommendations for use.
Stopping the Machine Adjusting the Anti-Scalp Rollers To stop the machine, move the motion-control levers to NEUTRAL and outward to the PARK position, disengage the blade-control switch, ensure that the throttle is in the FAST position, and turn the ignition key to OFF. Remove the key from the ignition switch. Whenever you change the height of cut, adjust the height of the anti-scalp rollers. Note: Adjust the anti-scalp rollers so that the rollers do not touch the ground in normal, flat mowing areas. 1.
Adjusting the Motion-Control Levers 4. Move the bypass levers forward through the key hole and down to lock them in place (Figure 22). Adjusting the Height 5. Move the motion-control levers inward to the NEUTRAL position and turn the ignition key to the RUN position. Note: Do this for each lever. You can adjust the motion-control levers higher or lower for maximum comfort (Figure 21). A Note: Do not start the machine. B Note: You can now push the machine by hand.
Using the Grass Deflector The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. DANGER Without the grass deflector, discharge cover, or complete grass-catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris. Contact with rotating mower blade(s) and thrown debris will cause injury or death.
WARNING 1 Loading a machine onto a trailer or truck increases the possibility of a tip-over and could cause serious injury or death. • Use extreme caution when operating a machine on a ramp. • Use only a full-width ramp; do not use individual ramps for each side of the machine. • Do not exceed a 15-degree angle between the ramp and the ground or between the ramp and the trailer or truck. 2 • Ensure the length of ramp is at least 4 times as long as the height of the trailer or truck bed to the ground.
Long Grass Operating Tips If the grass is ever allowed to grow slightly longer than normal, or if it contains a high degree of moisture, raise the cutting height higher than usual and cut the grass at this setting. Then cut the grass again using the lower, normal setting. Fast Throttle Setting For best mowing and maximum air circulation, operate the engine at the FAST position.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 50 hours • Change the fluid and filters for the hydraulic system and bleed the system. 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. Check the cutting blades.
Premaintenance Procedures Lubrication Raising the Seat Service Interval: Every 25 hours—Grease all lubrication points. Make sure that the motion-control levers are locked in the PARK position. Lift the seat forward. Grease Type: No. 2 lithium grease Greasing the Bearings 1. Park the machine on a level surface and disengage the blade-control switch. You can access the following components by raising the seat: • Serial plate 2.
Engine Maintenance Servicing the Engine Oil Oil Type: Detergent oil (API service SJ or higher) Servicing the Air Cleaner Crankcase Capacity: 1.9 L (64 oz) when the filter is changed Service Interval: Before each use or daily—Check the air cleaner for dirty, loose or damaged parts. Every 50 hours—Service the air-cleaner paper element (more often under extremely dusty, dirty conditions). Every 100 hours—Replace the air-cleaner paper element (more often under extremely dusty, dirty conditions).
A Changing the Engine Oil and the Engine-Oil Filter B Service Interval: Every 100 hours—Change the engine oil and the engine-oil filter. Note: The drain plug is attached to the drain hose. Note: Dispose the used oil at a recycling center. C D Fill with oil as specified in the table titled Use These SAE Viscosity Oils (Figure 29). E 1. Park the machine so that the drain side is slightly lower than the opposite side to ensure that the oil drains completely. 2.
4. Torque the plug to 14 N∙m (125 in-lb). A B C D E A B C D E F g027517 Figure 33 3/4 g027477 Servicing the Spark Plug Figure 32 Service Interval: Every 200 hours—Check the spark plug(s) condition and gap. 5. Slowly pour approximately 80% of the specified oil into the filler tube (Figure 33). Every 500 hours—Replace the spark plug(s). The spark plug is RFI compliant. Equivalent alternate brand plugs can also be used. Type: Champion XC12YC Air Gap: 0.76 mm (0.
A Cleaning the Blower Housing B To ensure proper cooling, make sure that the grass screen, cooling fins, and other external surfaces of the engine are kept clean at all times. Annually, or every 100 hours of operation (more often under extremely dusty, dirty conditions), remove the blower housing and any other cooling shrouds. 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).
Fuel System Maintenance DANGER In certain conditions, gasoline is extremely flammable and highly explosive. A fire or explosion from gasoline can burn you and others and can damage property. A • Perform any fuel-related maintenance when the engine is cold. Do this outdoors in an open area. Wipe up any gasoline that spills. • Never smoke when draining gasoline and stay away from an open flame or where a spark may ignite the gasoline fumes.
Electrical System Maintenance WARNING Incorrect battery-cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. WARNING • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. CALIFORNIA Proposition 65 Warning Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm.
Charging the Battery Servicing the Fuses Service Interval: Before storage—Charge the battery and disconnect the battery cables. The electrical system is protected by fuses. It requires no maintenance; however, if a fuse blows, check the component or circuit for a malfunction or short. 1. Remove the battery from the chassis; refer to Removing the Battery (page 32). Fuse type: 2. Charge the battery for a minimum of 1 hour at 6 to 10 A.
Releasing the Electric Brake Drive System Maintenance The electric brake releases by manually rotating the link arms forward. Once the electric brake is energized, the brake resets. 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 41). Check the tires when they are cold to get the most accurate pressure reading.
Removing the Hydraulic System Filters Hydraulic System Maintenance 1. Shut off the engine, wait for all moving parts to stop, and allow engine to cool. Remove the key and engage the parking brake. Hydraulic System Fluid Specification 2. Raise the rear of the machine and support it with jack stands (or equivalent support) just high enough to allow drive wheels to turn freely. Oil Type: Toro HYPR-OIL® 500 or 20W-50 motor oil. System Capacity: approximately 4.5 L (152 oz) with a filter change.
Note: Ensure that no dirt or contamination enters the hydraulic system. Note: Torque the plug to 20.3 N∙m (180 in-lb). 6. Continue to add oil through the expansion reservoir until it reaches the Full Cold line on the expansion reservoir. 5. Place a container below the filter to catch the fluid that drains when you remove the filter and vent plugs. 6. Locate and remove the vent plug on each transmission 7. Proceed to the Bleeding the Hydraulic System (page 36). 7.
Mower Maintenance Servicing the Cutting Blades Maintain sharp blades throughout the cutting season, because sharp blades cut cleanly without tearing or shredding the grass blades. Tearing and shredding the grass turns it brown at the edges, which slows growth and increases the chance of disease. Figure 47 Check the cutting blades daily for sharpness and for any wear or damage. File down any nicks and sharpen the blades as necessary.
3. Measure from the tip of the blade to the flat surface (Figure 49). 1 1 G014973 3 2 G014973 3 Figure 51 2 1. Opposite blade edge (in position for measuring) Figure 49 2. Level surface 3. Second measured distance between blade and surface (B) 1. Blade (in position for measuring) 2. Level surface 3. Measured distance between blade and the surface (A) A.
Removing the Blades Replace a blade if it hits a solid object, if the blade is out of balance, or if the blade is bent. For best performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made by other manufacturers may result in non-conformance with safety standards. Figure 54 1. Blade 1. Hold the blade end using a rag or thickly padded glove. 2. Balancer 3. Repeat this procedure until the blade is balanced. 2.
G005278 2 10. Continue leveling the deck by checking the front-to-rear blade slope; refer to Adjusting the Front-to-Rear Blade Slope (page 40). 3 Adjusting the Front-to-Rear Blade Slope 3 1 2 4 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. 4 1. Park the machine on a level surface and disengage the blade-control switch. Figure 55 1. Blades side to side 3.
3 3 1 1 2 2 G014634 Figure 58 1. Adjusting rod 3. Locknut 2. Adjusting block G014635 Figure 59 7. 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 (Figure 57). 1. Front support rod 3. Deck bracket 2. Locking nut 8. When the front-to-rear blade slope is correct, check the side-to-side level of the mower again, refer to Leveling from Side to Side (page 39). 5.
Note: Retain all parts for future installation. 3 4 Installing the Mower 5 1. Park the machine on a level surface and disengage the blade-control switch. 6 2. Move the motion-control levers outward to the PARK position, shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 2 7 3. Slide the mower under the machine. 1 4. Lower the height-of-cut lever to the lowest position. 5.
Mower Belt Maintenance 8. Install the pulley covers (Figure 62). 3 Inspecting the Belts 5 2 1 3 Service Interval: Every 25 hours—Check the belts for wear or cracks. Check the belts for cracks, frayed edges, burn marks, or any other damage. Replace damaged belts. Replacing the Mower Belt 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.
Cleaning 8. Turn the water off and remove the coupling from the washout fitting. Note: If the mower is not clean after a single washing, soak it and let it stand for 30 minutes. Then, repeat the process. Washing the Underside of the Mower 9. Run the mower again for 1 to 3 minutes to remove excess water. Service Interval: After each use—Clean the mower-deck housing. Wash the underside of the mower after each use to prevent grass buildup for improved mulch action and clipping dispersal.
Storage plug(s) removed from the engine, pour 2 tablespoons of engine oil into the spark plug hole. Use the starter to crank the engine and distribute the oil inside the cylinder. Install the spark plug(s). Do not install the wire on the spark plug(s). Cleaning and Storage 1. Disengage the blade-control switch, move the motion-control levers outward to the PARK position, shut off the engine, and remove the key. 11. Clean any dirt and chaff from the top of the mower. 12.
Troubleshooting Problem Possible Cause Corrective Action The fuel tank is showing signs of collapsing or the machine is showing signs of frequently running out of fuel. 1. The air cleaner paper element is clogged. 1. Clean the paper element. 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.
Problem The machine does not drive. There is an abnormal vibration. The cutting height is uneven. Possible Cause 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 engine-mounting bolts are loose. 1. Tighten the engine-mounting bolts. 2. The engine pulley, idler pulley, or blade pulley is loose. 3.
Schematics Electrical Diagram (Rev.
Notes: 49
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Notes: 51
TimeCutter and TITAN Mowers The Toro Warranty Limited Warranty (see warranty periods below) Conditions and Products Covered The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair the Toro Products listed below if defective in materials or workmanship. 1. Contact any Authorized Toro Service Dealer to arrange service at their dealership. To locate a dealer convenient to you, access our web site at www.Toro.com.
