Form No. 3363-814 Rev A TITAN® ZX5450 Zero-Turn-Radius Riding Mower Model No. 74832—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.
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. 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.
Contents Changing the Hydraulic System Filter and Oil.................................................................. 37 Mower Deck Maintenance ...................................... 39 Servicing the Cutting Blades ............................... 39 Mower Deck Leveling......................................... 42 Inspecting the Belts ............................................ 43 Replacing the Mower Belt ................................... 43 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 117-5344 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. 1. Lock 2. Read the Operator’s Manual 112-9840 1. Read the Operator’s Manual. 3. Remove the ignition key and read the instructions before servicing or performing maintenance. 2. Height of cut 115-9644 1.
Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 2. No fire, open flame, or smoking. 3. Caustic liquid/chemical burn hazard 4. Wear eye protection 5. Read the Operator’s Manual. 6. Keep bystandersa safe distance from the battery. 7. Wear eye protection; explosive gases can cause blindness and other injuries 8. Battery acid can cause blindness or severe burns. 9. Flush eyes immediately with water and get medical help fast. 10. Contains lead; do not discard. 109-8965 1.
5-9630 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. Lubricate the caster wheel every 25 hours 117-7491 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.
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.
Important: Do not use fuel additives containing methanol or ethanol. 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.
Filling the Fuel Tank Setting the Parking Brake Note: Do not fill the fuel tank completely full, this will allow gasoline to expand. 1 2 1. Shut the engine off and set the parking brake. 2. Clean around the fuel tank cap. 3. Fill the fuel tank to the bottom of the filler neckFigure 10. G010078 Figure 11 Releasing the Parking Brake G010016 1 1 2 3 2 G010079 Figure 12 Operating the Throttle 4 The throttle control can be moved between Fast and Slow positions (Figure 13).
3. Set the parking brake (Figure 16); refer to Setting the Parking Brake. G010288 4. Move the blade control switch (PTO) to the Off position (Figure 16). 5. Move the throttle lever to Choke before starting a cold engine. Note: A warm or hot engine may not require choking. Figure 14 1 2 3 4 Move the throttle lever back to disengage the choke after the engine has started. Operating the Ignition Switch 1. Turn the ignition key to the Start position (Figure 15). When the engines starts, release the key.
Operating the Mower Blade Control Switch (PTO) ST The blade control switch (PTO) starts and stops the mower blades and any powered attachments. RT A N RU P ST O Engaging the Blade Control Switch (PTO) G008947 Figure 17 1. Off 2. Run Note: Engaging the blade control switch (PTO) with the throttle position at half or less will cause excessive wear to the drive belts. 3.
Understanding the Safety Interlock System Machine can spin very rapidly. Operator may lose control of machine and cause personal injury or damage to machine. The safety interlock system is designed to prevent the engine from starting unless: • The parking brake is engaged. • Use caution when making turns. • The blades are disengaged. • Slow the machine down before making sharp turns. • The motion control levers are in the neutral lock position.
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. 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.
Using the Side Discharge Cut 1/3 of the Grass Blade The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. 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. Mowing Direction Without a grass deflector, discharge cover, or complete grass catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris.
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. Lubricate the caster wheel every 25 hours Premaintenance Procedures Lubrication Raising the Seat Service Interval: Every 25 hours—Grease all lubrication points.
Engine Maintenance 1 Contact with hot surfaces may cause personal injury. Keep hands, feet, face, clothing and other body parts away the muffler and other hot surfaces. Servicing the Air Cleaner Service Interval: Before each use or daily—Check the air cleaner for dirty, loose or damaged parts. G009949 Figure 33 Every 25 hours/Yearly (whichever comes first)—Service the foam element. (more often under dusty, dirty conditions) 1. Front caster tire 4.
1 Replace the air cleaner element yearly, or every 100 hours. 2 3 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). 5 3. Remove the foam element and inspect. Clean and replace as necessary. 4 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.
operated for at least 50 hours using standard petroleum based oil before switching to synthetic oil. Never operate the engine with the oil level below the “ADD” or “L” mark or above the “FULL” or “F” mark on the dipstick. Checking the Engine Oil Level 8. Remove dipstick and check oil level. The level should be between the “Full or F” and “Add or L” marks. If low, add oil of the proper type up to the full mark. Reinstall oil fill cap/dipstick and screw tight.
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. G009950 7. Check the oil level; refer to Checking the Oil Level. 1 2 8. Slowly add additional oil to bring it to the full mark. 9. Install the oil fill cap/dipstick .
Note: Ensure the oil filter gasket touches the engine and then an extra 3/4 turn is completed. Set the gap to 0.030 inches (0.76 mm). 2 1 3. Fill the crankcase with the proper type of new oil; refer to Changing the Oil. Servicing the Spark Plug Service Interval: Every 200 hours—Check spark plug(s) condition and gap. G008794 Figure 39 Every 500 hours—Replace the spark plug(s). The spark plug is RFI compliant. Equivalent alternate brand plugs can also be used.
Fuel System Maintenance Electrical System Maintenance Replacing the Fuel Filter Servicing the Battery Service Interval: Every 500 hours/Yearly (whichever comes first) (more often under dusty, dirty conditions). Service Interval: Monthly Warning 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral lock position, and set the parking brake.
5. Slide the red terminal boot off the positive (red) battery terminal and remove the positive (+)(red) battery cable (Figure 42). Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. 6. Remove the clamp (Figure 42). 7. Remove the battery. • Always Disconnect the negative (black) battery cable before disconnecting the positive (red) cable. Installing the Battery 1.
G010340 1 3 2 25 30 Figure 43 1. Positive Battery Post 2. Negative Battery Post 3. Red (+) Charger Lead 4. Black (-) Charger Lead Servicing the Fuses 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. G010241 Figure 44 1. 30 amp 2. 25 amp Fuses: • Main, 30 amp, blade-type • Engine, 20 amp, blade-type 1. The fuses are located on right hand console next to the seat (Figure 44). 2.
Drive System Maintenance Hydraulic System Maintenance Oil Type: 20w-50 engine oil. Checking the Tire Pressure Important: Use oil specified or equivalent. Other fluids could cause system damage. 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 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.
result in irreparable damage to the transaxle drive system. 1 2 3 4 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. Locate the filter and guards on each transaxle drive system (Figure 47). Remove three screws securing the filter guard and guard. 5 G010254 1 5 6 2 3/4 3 G008748 Figure 48 4 Figure 47 Right side shown 1. Transaxle drive 2. Oil filter 3. Filter guard 1.
Mower Deck Maintenance Servicing the Cutting Blades 1 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. G010333 Figure 49 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 Figure 50 1. Cutting Edge 2. Curved Area 3. Wear/slot Forming 4. Crack G009680 3 2 Figure 52 Checking for Bent Blades 1. Blade, in position for measuring 2. Level surface 3. Measured distance between blade and surface (A) Note: The machine must be on a level surface for the following procedure. 1. Raise the mower deck to the highest height-of-cut position; also considered the ’transport’ position. 4.
1 G009680 3 2 1 Figure 54 2 3 1. Opposing blade edge, in position for measuring 2. Level surface 3. Second measured distance between blade and surface (B) 4 G010341 Figure 55 1. Sail Area of Blade 2. Blade A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders. 3. Curved washer 4. Blade Bolt Sharpening the Blades • Always replace bent or damaged blade with a new blade. • Never file or create sharp notches in the edges or surfaces of blade.
are not within 3/16 inch (5 mm), an adjustment is required; continue to the Leveling procedure. Figure 57 1. Blade 2. Balancer Installing the Blades 1. Install the blade onto the spindle shaft (Figure 55). 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).
then tighten the four leveling adjust locking nuts (Figure 61). 1 1 2 3 2 3 4 4 Figure 59 1. Blades front to rear 3. Measure from the tip of the blade to the flat surface here 2. Outside cutting edges Leveling the Mower Deck G010321 Figure 61 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. 3. Place two 2-5/8 inch (6.
stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 1 Lower the mower to the 3 inch (76 mm) height-of-cut position. Remove the mower belt from the engine pulley; refer to the Replacing the Mower Belt procedure. Lower the mower to the lowest height-of-cut. Select one of the following procedures depending on the mower deck size installed to complete the removal. 2 5 6 7 3 4 1.
before the bend and going over the rod as it returns from the bend. An uncovered discharge opening could allow the lawn mower to throw objects in the operator’s or bystander’s direction and result in serious injury. Also, contact with the blade could occur. 4. Lift the long end of the spring and place it into the notch on the deflector assembly bracket (Figure 65). 2 Never operate the lawn mower unless you install a mulch plate, discharge deflector, or grass collection system.
Cleaning 1 Washing the Underside of the Mower Service Interval: Before each use or daily—Clean the mower housing. 3 4 Wash the underside of the mower after each use to prevent grass buildup for improved mulch action and clipping dispersal. 6 1. Park the machine on a level surface and disengage the blade control switch. 5 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.
Storage A broken or missing washout fitting could expose you and others to thrown objects or blade contact. Contact with blade or thrown debris can cause injury or death. Cleaning and Storage 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.
B. Run the engine to distribute conditioned fuel through the fuel system (5 minutes). C. Stop the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank in the Maintenance Section. D. Restart the engine and run it until it stops. E. Dispose of fuel properly. Recycle as per local codes. Important: Do not store stabilizer/conditioned fuel over 90 days. 13. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged. 14.
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.