Form No. 3363-810 Rev A TITAN ZX4800 Zero-Turn-Radius Riding Mower Model No. 74830—Serial No. 310000001 and Up G009968 To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com.
Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service Dealer or Toro 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. 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.
Contents Changing the Hydraulic System Filter and Oil.................................................................. 38 Mower Deck Maintenance ...................................... 40 Servicing the Cutting Blades ............................... 40 Mower Deck Leveling......................................... 42 Inspecting the Belts ............................................ 44 Replacing the Mower Belt ................................... 44 Removing the Mower .........................................
Safety • Never leave a running machine unattended. Always turn off blades, set parking brake, stop engine, and remove key before dismounting. • Turn off blades when not mowing. Stop the engine and wait for all parts to come to a complete stop before cleaning the machine, removing the grass catcher or unclogging the discharge chute. • Operate the machine only in daylight or good artificial light. • Do not operate the machine while under the influence of alcohol or drugs.
Towing • Remove or mark obstacles such as rocks, tree limbs, etc. from the mowing area. Tall grass can hide obstacles. A hitch kit is available for this machine and can be obtained by contacting an Authorized Toro Dealer. Do not tow without first installing this manufacturer approved hitch. The following guidelines apply when towing with the approved hitch kit installed. • Tow only with a machine that has a hitch designed for towing. Do not attach towed equipment except at the hitch point.
General Service: • Battery gases can explode. Keep cigarettes, sparks and flames away from battery. • Never operate a machine inside a closed area. Engine exhaust contains carbon monoxide, which is an odorless, deadly poison that can kill you. • Keep nuts and bolts tight, especially the blade attachment bolts. Keep equipment in good condition. • Never tamper with safety devices. Check their proper operation regularly. • Keep the machine free of grass, leaves, or other debris build-up.
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. 115-9631 1. Power take-off (PTO), Blade control switch on some models 2. Blade control switch—On 99-8936 1. Machine speed 2. Fast 3. Slow 4. Neutral 5. Reverse 3. Blade control switch—Off 4. Choke 5. Fast 6. Continuous variable setting 7. Slow 114-1606 1. Entanglement hazard, belt—keep all guards in place.
110-6691 1. Thrown object hazard—keep bystanders a safe distance from the machine. 2. Thrown object hazard, mower—do not operate without the deflector, discharge cover, or grass collection system in place. 3. Cutting/dismemberment of hand or foot—stay away from moving parts. 112-9840 1. Read the Operator’s Manual. 3. Remove the ignition key and read the instructions before servicing or performing maintenance. 115-9644 1. Press the pedal and lift the height of cut lever to unlock the deck position. 2.
9-8965 1. Warning–read the Operator’s Manual. 2. Read the instructions before servicing or performing maintenance; apply parking brake, remove the ignition key and disconnect the spark plug wire. 3. Thrown object hazard—keep bystanders a safe distance from the machine, pick up debris before operating, keep the discharge deflector in place. 4. Loss of traction/control hazard, slopes–loss of traction/control on slope, disengage the blade control switch (PTO), proceed off the slope slowly. 5.
7–7490 1. Fuel 2. Full 3. Half 11 4.
Product Overview 2 1 10 3 4 5 9 6 8 G010001 7 Figure 4 1. Motion control levers 2. Operator seat 3. Parking brake 4. Fuel gauge 5. Footrest 6. Front caster wheel 7. Anti-scalp roller 8. Deflector 9. Foot pedal deck lift and height-of-cut 10. Control panel 1 2 6 5 3 4 G010009 Figure 5 1. Gas tank cap 2. Mower Deck 3. Washout port 4. Drive wheel 5. Engine guard 6.
Controls Become familiar with all the controls before you start the engine and operate the machine (Figure 6). G010016 1 2 1 4 3 G009918 Figure 6 1. Throttle and choke control 2. Hour meter 3. Ignition switch 4. Blade control switch (PTO) 5. Fuses G010077 Figure 7 1. Fuel gauge window Ignition Switch Motion Control Levers The ignition switch has three positions: Start, Run and Off. The key will turn to Start and move back to Run upon release.
Attachments/Accessories Operation A selection of Toro approved attachments and accessories are available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or Distributor or go to www.Toro.com for a list of all approved attachments and accessories. Note: Determine the left and right sides of the machine from the normal operating position. Think Safety First Please carefully read all of the safety instructions and decals in the safety section.
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. • Fill the fuel tank outdoors, in an open area, when the engine is cold. Wipe up any gasoline that spills. • Never fill the fuel tank inside an enclosed trailer. • Do not fill the fuel tank completely full. Add gasoline to the fuel tank until the level is 1/4 to 1/2 inch (6 to 13 mm) below the bottom of the filler neck.
WARNING Gasoline is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness. G010016 • Avoid prolonged breathing of vapors. • Keep face away from nozzle and gas tank or conditioner opening. 1 • Keep gas away from eyes and skin. Using Stabilizer/Conditioner Use a fuel stabilizer/conditioner in the machine to provide the following benefits: • Keeps gasoline fresh during storage of 90 days or less. For longer storage it is recommended that the fuel tank be drained.
Releasing the Parking Brake 1 2 G010016 1 2 G010079 Figure 12 3 Operating the Throttle The throttle control can be moved between Fast and Slow positions (Figure 13). Always use the fast position when turning on the mower deck with the blade control switch (PTO). 4 G010475 G010289 Figure 10 Figure 13 Checking the Engine Oil Level Before you start the engine and use the machine, check the oil level in the engine crankcase; refer to Checking the Engine Oil Level.
Operating the Ignition Switch 1 2 3 4 1. Turn the ignition key to the Start position (Figure 15). When the engines starts, release the key. Important: Do not engage starter for more than 5 seconds at a time. If the engine fails to start allow a 15 second cool-down period between attempts. Failure to follow these instructions can burn out the starter motor. Note: Additional starting cycles may be required when starting the engine for the first time after the fuel system has been without fuel completely.
Stopping the Engine CAUTION Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended. G008945 Always remove the ignition key and set the parking brake when leaving the machine unattended, even if just for a few minutes.
Testing the Safety Interlock System Using the Motion Control Levers 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. 1. While sitting on the seat, engage the parking brake and move the blade control switch to On. Try starting the engine; the engine should not crank. 2.
Stopping the Machine To stop the machine, move the traction control levers to neutral and move to locked position, disengage the blade control switch (PTO), and turn the ignition key to off. Set the parking brake when you leave the machine; refer to Setting the Parking Brake. Remember to remove the key from the ignition switch. CAUTION Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended.
1 G010016 5 4 3 2 G010236 Figure 25 1. Deck lift pedal 2. Cut height pin 4. Lock position. lowest height-of-cut (use only for deck removal) 5. Lock position. transport position 3. Height-of-cut positions Using the Lock Positions G010219 The deck can be locked in the highest height-of-cut or transport position or the lowest height-of-cut position. 1. Push on the deck lift pedal with your foot and raise the mower deck to the transport position (also the 4.
Changing the Seat Ride Suspension 4 The number of seat springs can be changed to maximize rider comfort. More springs should be used with heavier operators and on rough terrain. Fewer springs should be used with lighter operators and when mowing smooth, well established lawns. Always keep the number of springs on the left and right side the same when adding and removing springs. G010233 3 1 2 Figure 26 1. Anti-scalp roller 2. Bolt 4 3. Flange Nut 4.
1 Pushing the Machine by Hand 2 Important: Always push the machine by hand. Never tow the machine because damage may occur. 3 4 To Push the Machine 1. Park the machine on a level surface and disengage the blade control switch. 2. Move the motion control levers outward to neutral lock position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Make sure the parking brake is disengaged. 3.
To Operate the Machine Cut 1/3 of the Grass Blade Move the bypass to the position for pushing the machine (Figure 31) to engage the wheel motors. It is best to cut only about 1/3 of the grass blade. Cutting more than that is not recommended unless grass is sparse, or it is late fall when grass grows more slowly. Using the Side Discharge Mowing Direction The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf.
Blade Maintenance Maintain a sharp blade throughout the cutting season because a sharp blade cuts 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. Check the cutter blades daily for sharpness, and for any wear or damage. File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine TORO replacement blade.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Change the engine oil. After the first 50 hours • Change the hydraulic system filter and oil. 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 air intake and cooling areas, clean as necessary. Check the mower blades.
Figure 32 Located on the seat pan underside 1. Read the Operator’s Manual before performing any maintenance. 2. Check the engine oil every 8 hours 3. Check the drive wheel tire pressure every 25 hours 4. Check the hydraulic oil every 25 hours 5. Check the caster wheel tire pressure every 25 hours 6.
Premaintenance Procedures Lubrication Raising the Seat Service Interval: Every 25 hours—Grease all lubrication points. Greasing the Bearings Make sure the motion control levers are locked in the neutral lock position. Lift the seat forward. Grease Type: No. 2 General Purpose Lithium Base Grease The following components can be accessed by raising the seat: 1. Park the machine on a level surface and disengage the blade control switch. • Service decal 2.
Engine Maintenance 1 2 3 WARNING Contact with hot surfaces may cause personal injury. 5 Keep hands, feet, face, clothing and other body parts away the muffler and other hot surfaces. 4 Servicing the Air Cleaner 6 Service Interval: Before each use or daily—Check the air cleaner for dirty, loose or damaged parts. G010338 Figure 34 1. Air cleaner cover 2. Air cleaner latch 3. Air cleaner Every 25 hours/Yearly (whichever comes first)—Service the foam element.
Checking the Engine Oil Level Replace the air cleaner element yearly, or every 100 hours. 1. Open the air cleaner cover door on the blower housing to access the air cleaner element (Figure 34). 2. Unhook the latch and remove the air cleaner(Figure 34). 3. Remove the foam element and inspect. Clean and replace as necessary. 4. Gently tap the paper element to dislodge dirt. Do not wash the paper element or use pressurized air, as this will damage the element. Replace a dirty, bent, or damaged element.
low, add oil of the proper type up to the full mark. Reinstall oil fill cap/dipstick and screw tight. Changing the Engine Oil G009950 Service Interval: After the first 8 hours Every 100 hours (more often under dusty, dirty conditions) 1 2 3 4 5 6 Note: Dispose of the used oil at a recycling center. 1. Start the engine and let it run five minutes. This warms the oil so it drains better. 2.
Note: Ensure the oil filter gasket touches the engine and then an extra 3/4 turn is completed. 3. Fill the crankcase with the proper type of new oil; refer to Changing the Oil. 5. 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. 6. Install the oil fill cap/dipstick. 7. Check the oil level; refer to Checking the Oil Level. Servicing the Spark Plug 8. Slowly add additional oil to bring it to the full mark.
Fuel System Maintenance 2 1 Replacing the Fuel Filter Service Interval: Every 500 hours/Yearly (whichever comes first) (more often under dusty, dirty conditions). G008794 Figure 39 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral lock position, and set the parking brake. Installing the Spark Plug 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Tighten the spark plug to 18-22 ft-lb (25-29 N-m).
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. Servicing the Battery • Always Disconnect the negative (black) battery cable before disconnecting the positive (red) cable. Service Interval: Monthly WARNING • Always Reconnect the positive (red) battery cable before reconnecting the negative (black) cable.
5. Slide the red terminal boot off the positive (red) battery terminal and remove the positive (+)(red) battery cable (Figure 42). 6. Remove the clamp (Figure 42). 7. Remove the battery. Installing the Battery 1. Position battery in the tray with the terminal posts opposite from the hydraulic tank (Figure 42). 2. First, install the positive (red) battery cable to positive (+) battery terminal. Figure 43 3. Then install the negative battery cable and ground wire to the negative (-) battery terminal. 1.
Drive System Maintenance G010340 1 Checking the Tire Pressure 3 2 Service Interval: Every 25 hours—Check tire pressure. 25 30 Maintain the air pressure in the front and rear tires as specified. Uneven tire pressure can cause uneven cut. Check the pressure at the valve stem (Figure 45). Check the tires when they are cold to get the most accurate pressure reading. Rear Tires: 13 psi (90 kPa) Front Tires (caster wheels): 35 psi (241 kPa) G010241 Figure 44 1. 30 amp 2. 25 amp 3.
Hydraulic System Maintenance 2. Locate the filter and guards on each transaxle drive system (Figure 47). Remove three screws securing the filter guard and guard. 5 Oil Type: 20w-50 engine oil. G010254 Important: Use oil specified or equivalent. Other fluids could cause system damage. 1 Checking the Hydraulic Oil Level 2 Service Interval: Every 25 hours Check expansion reservoir and if necessary add 20W-50 engine oil to the FULL COLD line 3 1 3 4 Figure 47 Right side shown 2 1.
1 2 3 4 1 G010333 Figure 49 1. Jacking points 5 6 2. Start engine and move throttle control ahead to 1/2 throttle position. Disengage parking brake. A. Move the bypass levers into the pushing the machine position; refer to the Pushing the Machine by Hand section in Operation. With the bypass valves open and the engine running, slowly move the motion control levers in both forward and reverse (5 or 6 times). 3/4 G008748 B. Move the bypass levers into the operating the machine position.
Mower Deck 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. Figure 50 1. Cutting Edge 2. Curved Area 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. 1 1 G009680 3 2 G009680 3 Figure 54 Figure 52 1. Opposing blade edge, in position for measuring 2. Level surface 3. Second measured distance between blade and surface (B) 2 1. Blade, in position for measuring 2. Level surface 3. Measured distance between blade and surface (A) WARNING A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders. 4.
Figure 57 1. Blade 2. Balancer Installing the Blades 1 1. Install the blade onto the spindle shaft (Figure 55). 2 Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. 2. Install the spring disk and blade bolt. The spring disk cone must be installed toward the bolt head (Figure 55). Torque the blade bolt to 100-110 ft-lb (135-150 N-m). 3 4 G010341 Figure 55 1. Sail Area of Blade 2. Blade 3. Curved washer 4.
are not within 3/16 inch (5 mm), an adjustment is required; continue to the Leveling procedure. Figure 59 1. Blades front to rear 3. Measure from the tip of the blade to the flat surface here Figure 58 1. Blades side to side 2. Outside cutting edges 3. Measure from the tip of the blade to the flat surface here 2. Outside cutting edges Leveling the Mower Deck 1. Set anti-scalp rollers to top holes or remove completely for this procedure. 2. Set the height-of-cut lever to the 3 inch (76 mm) position.
then tighten the four leveling adjust locking nuts (Figure 61). 1 1 5. Recheck that blocks fit just snugly under the deck skirt. Make sure all attachment bolts are tight 6. Verify the deck is level by checking the side-to-side level and front-to-rear blade slope; repeat deck leveling procedure if necessary.
1 Installing the Mower 2 1. Park the machine on a level surface and disengage the blade control switch. 2. Move the motion control levers outward to the neutral lock position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3 3. Slide the mower under the machine. 4. Lower the height-of-cut lever to the lowest position. Place the height-of-cut pin in the lock position for lowest height-of-cut. 5.
2 1 1 2 3 3 4 G006036 4 Figure 66 5 1. Rod and spring assembly partially installed 2. Long end of the spring installed into the notch in the deflector bracket Figure 65 1. Deflector assembly 2. Deck brackets G006049 4. Spring 5. Spring installed over the rod 3. Rod, short end, moved behind mower bracket 4. Short end, retained by mower bracket. 3. Rod 5.
Cleaning 6. Disengage the blade control switch, stop the engine, and remove the ignition key. Wait for all moving parts to stop. Washing the Underside of the Mower 7. Turn the water off and remove the coupling from the washout fitting. Note: If the mower is not clean after one washing, soak it and let it stand for 30 minutes. Then repeat the process. Service Interval: Before each use or daily—Clean the mower housing.
Storage B. Run the engine to distribute conditioned fuel through the fuel system (5 minutes). Cleaning and Storage C. Stop the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank in the Maintenance Section. 1. Disengage the blade control switch (PTO), set the parking brake, and turn the ignition key to Off. Remove the key. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine and hydraulic system.
Troubleshooting Problem Starter does not crank Engine will not start, starts hard, or fails to keep running Possible Cause 1. Blade control switch (PTO) is engaged. 1. Move blade control switch (PTO) to disengaged. 2. Parking brake is not on. 3. Drive levers are not in neutral lock position. 4. Operator is not seated. 5. Battery is dead. 6. Electrical connections are corroded or loose. 7. Fuse is blown. 8. Relay or switch is defective. 2. Set the parking brake. 3.
Problem Machine does not drive. Abnormal vibration. Uneven cutting height. Possible Cause 1. By pass valves is not closed tight. 1. Tighten the by pass valves. 2. 3. 4. 5. 2. 3. 4. 5. Pump belt is worn, loose or broken. Pump belt is off a pulley. Broken or missing idler spring. Hydraulic oil level is low or too hot. Change the belt. Change the belt. Replace the spring. Add hydraulic oil to reservoirs or let it cool down. 1. Cutting blade(s) is/are bent or unbalanced. 1.
Schematics G012083 Wire Diagram (Rev.
TITAN Mowers The Toro Total Coverage Guarantee A Three-Year Limited Warranty Conditions and Products Covered The Toro® Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair any Toro Product, if defective in materials or workmanship for the period listed below. Instructions for Obtaining Warranty Service If you think that your Toro Product contains a defect in materials or workmanship, follow this procedure: 1.
