Form No. 3393-837 Rev C TimeCutter® MX 5050 Riding Mower Model No. 74770—Serial No. 315000001 and Up Register at www.Toro.com.
Introduction 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. This machine is a ride-on, rotary-blade lawnmower intended to be used by homeowners in residential applications. It is primarily designed for cutting grass on well-maintained lawns. It is not designed for cutting brush, mowing grass and other growth alongside highways, or for agricultural uses.
g000502 Figure 2 1. Safety alert symbol. This manual uses 2 words to highlight information. Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention.
Contents Leveling the Mower Deck.................................. 43 Removing the Mower........................................ 45 Replacing the Grass Deflector .......................... 45 Mower Belt Maintenance .................................. 46 Installing the Mower.......................................... 47 Cleaning .............................................................. 48 Washing the Underside of the Mower................ 48 Storage .......................................................
Safety • Be alert, slow down and use caution when making turns. Look behind and to the side before changing directions. 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. • Never leave a running machine unattended.
Towing Safety • Do not make sudden turns or rapid speed changes. • Remove or mark obstacles such as rocks, tree • Do not attach towed equipment except at the hitch limbs, etc. from the mowing area. Tall grass can hide obstacles. point. • Follow the attachment manufacturer's • Avoid sudden starts when mowing uphill because recommendation for weight limits for towed equipment and towing on slopes. Towed weight must not exceed the weight of the machine, operator, and ballast.
• If fuel is spilled on clothing, change clothing • mower and any moving parts while engine is running. immediately. Never overfill the fuel tank. Replace gas cap and tighten securely. • Do not touch equipment or attachment parts which may be hot from operation. Allow to cool before attempting to maintain, adjust or service. General Service • Battery acid is poisonous and can cause burns. • Never operate a machine inside a closed area.
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. Example of how to compare slope with folded edge.
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. decal93-7009 93-7009 1. Warning—don't 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. decal110-6691 110-6691 1. Thrown object hazard—keep bystanders a safe distance from the machine. 2.
decal119-8814 119-8814 1. Parking position 4. Neutral 2. Fast 3. Slow 5. Reverse decal121-2989b 121-2989 1. Bypass lever position for pushing the machine 2. Bypass lever position for operating the machine decal119-8815 119-8815 1. Parking position 4. Neutral 2. Fast 3. Slow 5. Reverse decal131-4036 131-4036 1. Maximum drawbar pull 36 kg (80 lb) 2. Read the Operator's Manual. decaloemmarkt Manufacturer's Mark 1.
decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystanders a safe distance 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. Wear eye protection 8. Battery acid can cause blindness or severe burns. 9. Flush eyes immediately with water and get medical help fast. 5. Read the Operator's Manual. 10.
decal131-4162a 131-4162 50 Inch Models with Kohler Engine 1. Fast 2. Continuous variable setting 3. Slow 4.
decal132-0869 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 g027971 Figure 4 1. Deflector 5. Motion control levers 2. Rear drive wheel 6. Operator 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. Gas tank cap 12. Front caster wheel Controls Become familiar with all of the controls in Figure 4 and Figure 5 before you start the engine and operate the machine.
Motion Control Levers and Parking Brake Position upon release. Turning the key to the Off position will stop the engine; however, always remove the key when leaving the machine to prevent someone from accidentally starting the engine (Figure 5). 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; wheel speed is proportional to the amount the lever is moved.
Operation Note: Determine the left and right sides of the machine from the normal operating position. Adding Fuel • For best results, use only clean, fresh (less than • g014521 Figure 7 1. Fuel presence window Height-of-Cut Lever The height of cut lever allows the operator to lower and raise the deck from the seated position. When the lever is moved up, toward the operator the deck is raised from the ground and when moved down, away from the operator it is lowered toward the ground.
Important: Do not use fuel additives containing methanol or ethanol. DANGER In certain conditions during fueling, static electricity can be released causing a spark which can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can damage property. Add the correct amount of gas stabilizer/conditioner to the gas. Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline.
Breaking in a New Machine New engines take time to develop full power. Mower decks and drive systems have higher friction when new, placing additional load on the engine. Allow 40 to 50 hours of break-in time for new machines to develop full power and best performance. Think Safety First Operating Safety Please carefully read all of the safety instructions and decals in the safety section. Knowing this information could help you, your family, pets or bystanders avoid injury. g000513 Figure 10 1.
Starting the Engine Understanding the Safety Interlock System Important: Do not engage the starter for more than 10 seconds at a time. If the engine fails to start, allow a 60 second cool-down period between attempts. Failure to follow these instructions can damage the starter motor. WARNING If safety interlock switches are disconnected or damaged the machine could operate unexpectedly causing personal injury. • Do not tamper with the interlock switches.
Stopping the Engine Note: Always engage the blades with the throttle in the Fast position. 1. Disengage the blades by moving the blade control switch to Off. 2. Move the throttle lever to between the half and full throttle position. 3. Turn the ignition key to Off and remove the key. Driving Driving the machine benefits from an understanding of what zero turn radius mower means.
1. Move the motion control levers to neutral and outward to the park position. 2. Disengage the blade control switch 3. Adjust the lever to the desired position. The following are only recommendations for use. Adjustments will vary by grass type, moisture content, and the height of the grass. Suggested uses: Trim Parking X Heavy, wet grass X Training X Tow Bagging X Mulching X Mow Normal mowing X Transport X Trim g004532 This is the lowest speed.
Forward Backward 1. Move the levers to the center, unlocked position. Note: Always use caution when backing up and 2. To go forward, slowly push the motion control levers forward (Figure 17). turning. 1. Move the levers to the center, unlocked position. 2. To go backward, look behind you and down as you slowly pull the motion control levers rearward (Figure 18). g008952 Figure 17 g008953 Figure 18 To go straight, apply equal pressure to both motion control levers (Figure 17).
Adjusting the Height of Cut Note: The transport position is the highest height-of-cut position or cutting height 4.5 inch [115 mm] (Figure 19). Height-of-cut is controlled by the lever located to the right of the operating position (Figure 19). g010233 Figure 20 1. Anti-scalp roller 3. Flange Nut 2. Bolt 4. Hole spacing 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.
Adjusting the Motion Control Levers 3. Locate the bypass levers on the frame on both sides of the engine. Adjusting the Height 4. Move the bypass levers forward through the key hole and down to lock them in place as shown in Figure 23 . Ensure this is done for each lever. 5. Move the motion control levers inward to the neutral position and turn the ignition key to the run position. Do not start the machine. parts to stop before leaving the operating position.
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. • Never remove the grass deflector from the mower because the grass deflector routes material down toward the turf.
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. • 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. • Ensure the length of ramp is at least four times (4X) as long as the height of the trailer or truck bed to the ground.
Operating Tips Avoid Cutting Too Low Fast Throttle Setting If the cutting width of the mower is wider than the mower you previously used, raise the cutting height to ensure that uneven turf is not cut too short. 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 by uncut grass.
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 oil 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.
Pre-Maintenance Procedures Lubrication Raising the Seat Service Interval: Every 25 hours—Grease all lubrication points. Make sure the motion control levers are locked in the park position. Lift the seat forward. Grease Type: No. 2 general-purpose, lithium-based grease Greasing the Bearings The following components can be accessed by raising the seat: 1. Park the machine on a level surface and disengage the blade control switch. • Serial plate 2.
5. Engine Maintenance Wipe up any excess grease. Servicing the Air Cleaner Service Interval: Before each use or daily—Check the air cleaner for dirty, loose or damaged parts. Every 25 hours—Service or replace the precleaner (more often under extremely dusty, dirty conditions). Every 50 hours—Service the paper element (more often under extremely dusty, dirty conditions). Every 100 hours—Replace the paper element (more often under extremely dusty, dirty conditions).
Checking the Engine-Oil Level Service Interval: Before each use or daily—Check the engine-oil level. 1. Park the machine on a level surface, disengage the blade-control switch, stop the engine, and remove the key. 2. Make sure the engine is stopped, level, and is cool, so the oil has time to drain into the sump. 3. Check the engine-oil level (Figure 31). g028384 Figure 29 1. Air-cleaner latch 2. Engine 4. Air-cleaner base 5. Precleaner 3.
3. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. g027477 Figure 33 5. g027934 Figure 32 4. Torque the plug to 14 N-m (125 in-lb). 32 Slowly pour approximately 80% of the specified oil into the filler tube (Figure 34).
g027478 Figure 35 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. Note: 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. Set the gap to 0.76 mm (0.030 inch). g027517 Figure 34 Servicing the Spark Plug Service Interval: Every 200 hours—Check spark plug(s) condition and gap.
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. • 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 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. Wash hands after handling. g027959 Charging the Battery Removing the Battery WARNING Battery terminals or metal tools could short against metal machine components causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury.
disconnect the charger leads from the battery posts (Figure 40). 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. • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. • Always connect the positive (red) battery cable before connecting the negative (black) cable. 5. 6.
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: • Main F1-30 amp, blade-type Service Interval: Every 25 hours—Check tire pressure. • Charge Circuit F2-25 amp, blade-type 1. Remove the screws securing the control panel to the machine. Retain all fasteners 2.
Hydraulic System Maintenance Hydraulic System Oil Specification Oil Type: Toro HYPR-OIL® 500 or 20w-50 motor oil. System Capacity: approximately 4.495 liter (152 oz) with a filter change. Checking the Hydraulic-Oil Level g027911 Figure 43 Service Interval: Every 25 hours 1. Brake link arm on the electric brake control module 2. Left rear tire 1. Turn the ignition key to the Off position or disconnect the battery. 2. Locate the shaft on the electric brake where the brake-link arms are connected. 3.
Note: The filter and oil are changed at the same time. Do not reuse oil. Once the new filter is installed and oil is added any air in the system must be purged. Removing Hydraulic System Filters 1. Stop engine, wait for all moving parts to stop, and allow engine to cool. Remove the key and engage the parking brake. 2. Raise the rear of machine up and support with jack stands (or equivalent support) just high enough to allow drive wheels to turn freely. g027994 Figure 46 Right side shown 1.
Installing the Hydraulic System Filters 8. Proceed to the Bleeding the Hydraulic System section. Important: Failure to perform the Bleeding the Hydraulic System procedure after changing hydraulic filters and oil can result in irreparable damage to the transaxle drive system. Bleeding the Hydraulic System 1. g027477 Figure 47 2. 1. Apply a thin coat of the specified oil on the surface of the rubber seal of each filter. 2.
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 turns grass brown at the edges, which slows growth and increases the chance of disease. g006530 Figure 48 Check the cutter 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 here. g014973 Figure 52 1. Opposing blade edge, in position for measuring g014973 Figure 50 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 surface (A) WARNING 4. A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders.
2. Install the curved washer (cupped side toward the blade) and the blade bolt (Figure 53). 3. Torque the blade bolt to 47-48 N-m (35-65 ft-lb). Leveling the Mower Deck Check to ensure the mower deck is level any time you install the mower or when you see an uneven cut on your lawn. g017645 The mower deck must be checked for bent blades prior to leveling; any bent blades must be removed and replaced. Refer to the Checking for Bent Blades procedure before continuing. Figure 53 1. Sail area of blade 2.
Note: Check and adjust the side-to-side blade level. If you have not checked the setting; refer to Leveling from Side to Side (page 43). measurements are not within 5 mm (3/16 inch), an adjustment is required; continue with this procedure. 4. 6. Move to the left side of the machine. 7. Loosen the side locking nut. 8. Raise or lower the left side of the mower deck by rotating the rear nut. (Figure 57). Carefully rotate the blades so they are facing front to rear (Figure 58).
8. After adjustment, check the front-to-rear slope again. Continue adjusting the nut until the front blade tip is 1/16 to 5/16 inch (1.6 to 7.9 mm) lower than the rear blade tip (Figure 58). 9. 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 43). Removing the Mower 1. Park the machine on a level surface and disengage the blade control switch. 2.
g017618 Figure 63 1. Rod and spring assembly installed 2. Loop end of the spring installed into the notch in the deflector bracket 5. Secure the rod and spring assembly by twisting it so the short end of the rod can be placed behind the front bracket welded to the deck (Figure 63). Important: The grass deflector must be spring loaded in the down position. Lift the deflector up to test that it snaps to the full down position. g017617 Figure 62 1. Rod 2. Spring 3.
2. Installing the Mower Move the motion control levers outward to the park position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Set the height-of-cut at the lowest cutting position [1-1/2 inch (38 mm)]. 4. Using a spring removal tool, (Toro part no. 92-5771), remove the idler spring from the deck hook to remove tension on the idler pulley and roll the belt off of the pulleys (Figure 64).
Cleaning 7. Note: If the mower is not clean after one Washing the Underside of the Mower washing, soak it and let it stand for 30 minutes. Then repeat the process. Service Interval: After each use—Clean the mower housing. Wash the underside of the mower after each use to prevent grass buildup for improved mulch action and clipping dispersal. 2.
Storage cylinder. Install the spark plug(s). Do not install the wire on the spark plug(s). Cleaning and Storage 12. Clean any dirt and chaff from the top of the mower. 1. Disengage the blade control switch, move the motion controls outward to the park position, stop the engine, and remove the key. 13. Scrape any heavy buildup of grass and dirt from the underside of the mower, then wash the mower with a garden hose. 2.
Troubleshooting Problem Possible Cause 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 clogged. The engine overheats. 1. The engine load is excessive. 1. Reduce 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. There is 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 of 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 g028022 Electrical Diagram (Rev.
Notes:
The Toro Total Coverage Warranty TimeCutter and TITAN Mowers 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 the original purchaser to repair the Toro Products listed below if defective in materials or workmanship.
