Form No. 3425-455 Rev A GrandStand® Multi Force Mower With 52in or 60in TURBO FORCE® Cutting Unit Model No. 74523—Serial No. 403294044 and Up Model No. 74529—Serial No. 403294016 and Up Register at www.Toro.com.
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.
Contents Fuel System Maintenance ................................... 36 Draining the Fuel Tank ...................................... 36 Removing the Fuel Tank ................................... 37 Replacing the Fuel Filter ................................... 37 Electrical System Maintenance ........................... 38 Electrical System Safety ................................... 38 Servicing the Battery......................................... 38 Servicing the Fuses ....................................
Safety • Keep clear of the discharge opening. • Keep bystanders and children out of the operating area. Do not allow children to operate the machine. Allow only people who are responsible, trained, familiar with the instructions, and physically capable to operate the machine. This machine has been designed in accordance with ANSI B71.4-2017. General Safety • Stop the machine, shut off the engine, and remove the ignition key before servicing, fueling, or unclogging the machine.
decal112-3858 112-3858 1. Read the Operator's Manual. 2. Read the instructions before servicing or performing maintenance. 3. Remove the ignition key before adjusting the height of cut. 4. Height-of-cut settings. decal131-1180 131-1180 1. Read the Operator's Manual. 2. Short, light grass; dry conditions decal116-8775 116-8775 1. Read the Operator’s Manual. 2. 3. Bagging setting 4. Tall, dense grass; wet conditions Warning—fill to the bottom of the filler neck; do not overfill the tank.
decal131-3521 131-3521 1. Height of cut decal131-3529 131-3529 1. Read the Operator's Manual for more information on maintenance intervals and procedures. decal131-3524 131-3524 3. Fluid level 1. Read the Operator's Manual. 2. Transmission fluid decal131-3536 131-3528 131-3536 15A 15A 10A 7.5A decal131-3528 131-3528 1. Key switch—15 A 2. Accessory port—15 A 3. Power takeoff (PTO)—10 A 4. Infocenter—7.5 A 6 1. Battery 4. Parking brake 2. Time 5. Engine—start 3. Power takeoff (PTO) 6.
decal133-4604 133-4604 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, open baffle—only operate the machine with a baffle or a grass collector. 4. Entanglement hazard—keep away from moving parts; keep all guards and shields in place. decal133-4648 133-4648 1. Read the Operator's Manual for more information on servicing the machine. decal133-8062 133-8062 decal131-3526 131-3526 1.
decal133-1432 133-1432 1. Disengage the parking brake. 4. Push down to turn off the PTO. 2. Engage the parking brake. 5. Engine speed—fast 3. Pull up to turn on the PTO. 6. Engine speed—slow decal136-5438 136-5438 1. Warning—read the Operator's Manual. 6. Thrown object hazard—keep bystanders away from the machine. 7. Warning—engage the parking brake, shut off the engine, and remove the key from the switch before leaving the machine. 2. Warning—receive training before operating the machine. 3.
Controls Product Overview Become familiar with all the controls before you start the engine and operate the machine (Figure 4). Control Panel g033080 Figure 3 1. Adjustable caster 9. Motion-control levers 2. Accessory-frame lock 10. Hydraulic tank 3. Anti-scalp roller (60-inch decks only) 11. Fuel tank 4. Front caster wheel 12. Platform (down position) 5. Side-discharge chute 13. Fuel-shutoff valve 6. Accessory frame 14. Battery 1. Fuel cap 8. Height-of-cut lever 7. Engine 15.
Power-Takeoff Switch (PTO) Motion-Control Levers Use the power-takeoff switch (PTO) to engage and disengage mower blades or start and stop powered attachments (Figure 4); refer to Operating the PTO (page 15). Use the motion-control levers to drive the machine forward, reverse, and turn either direction (Figure 4). Hour Meter Close the fuel-shutoff valve when transporting or storing the machine; refer to Using the Fuel-Shutoff Valve (page 22).
Specifications Operation Note: Specifications and design are subject to Before Operation change without notice.
• • • • • • • • Using Stabilizer/Conditioner – Store fuel in an approved container and keep it out of the reach of children. Fuel is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness. – Avoid prolonged breathing of vapors. – Keep your hands and face away from the nozzle and the fuel-tank opening. – Keep fuel away from your eyes and skin.
Breaking in a New Machine Testing the Safety-Interlock System 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. Service Interval: Before each use or daily Test the safety-interlock system before you use the machine each time.
During Operation • Disengage the cutting unit and shut off the engine During Operation Safety • General Safety • • • The owner/operator can prevent and is responsible for accidents that may cause personal injury or property damage. • Wear appropriate clothing, including eye protection; long pants; substantial, slip-resistant footwear; and hearing protection. Tie back long hair and do not wear loose clothing or loose jewelry. • Use your full attention while operating the • machine.
Operating the PTO distance (twice the width of the machine) between the machine and any hazard. Use a walk-behind machine or a handheld tool to operate in these areas. Use the power-takeoff (PTO) switch in conjunction with the motion-control levers to engage and disengage mower blades or powered attachments. • Avoid starting, stopping, or turning the machine on slopes. Avoid making sudden changes in speed or direction; turn slowly and gradually.
Operating the Throttle Starting the Engine You can move the throttle control between FAST and SLOW positions (Figure 13). Important: Do not engage the starter for more than 5 seconds at a time. If the engine fails to start, wait 15 seconds between attempts. Failure to follow these instructions can burn out the starter motor. Always use the FAST position when engaging the PTO.
Shutting Off the Engine Operating the Platform You can use the machine with the platform in the up or down position. It is your preference on which position to use. CAUTION Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. WARNING The operator platform is heavy and may cause injury when you raise or lower it. Carefully lower or raise the operator platform, as suddenly dropping it could injure you.
Driving Forward 1. Disengage the parking brake; refer to Operating the Parking Brake (page 15). 2. Move the motion-control levers to the center, unlocked position. g031026 Figure 18 1. Platform up 3. Pull the knob out to release the platform. 2. Platform down g030983 Figure 19 Driving Forward or Backward The throttle control regulates the engine speed as measured in rpm (revolutions per minute). Place the throttle control in the FAST position for best performance. 1. Front reference bar 4.
Side Discharging or Mulching the Grass This machine 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 cause injury or death. • Do not remove the grass deflector from the machine, because the grass deflector routes material down toward the turf.
Adjusting the Height-of-Cut The height-of-cut can be adjusted from 38 to 127 mm (1-1/2 to 5 inches) in 6 mm (1/4 inch) increments. Note: Using a height-of-cut under 51 mm (2 inches) increases the wear on the mower-deck belt. Use a height-of-cut that is greater than 51 mm (2 inches) whenever possible. g018324 Figure 23 1. Bushing 4. Bolt 2. Anti-scalp roller 5. Nut 3. Spacer Adjusting the Flow Baffle You can adjust the mower-discharge flow for different types of mowing conditions.
Positioning the Flow Baffle Position B The following figures are for recommended use only. Adjustments vary by grass type, moisture content, and the height of the grass. Use this position when bagging (Figure 26). Note: If the engine power draws down and the mower ground speed is the same, open the baffle. Position A This is the full, rear position (see Figure 25).
Using Weights Preventing Freeze-up after Use • Install weights to improve balance. You can add or remove weights to create optimized performance under different operating conditions and for your preference. • In snowy and cold conditions, some controls and moving parts may freeze. Do not use excessive force when trying to operate frozen controls. If you have difficulty operating any control or part, start the engine and let it run for a few minutes. Thaw frozen parts before operating the machine.
Pushing the Machine by Hand Transporting the Machine Use a heavy-duty trailer or truck to transport the machine. Use a full-width ramp. Ensure that the trailer or truck has all the necessary brakes, lighting, and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you or bystanders avoid injury. Refer to your local ordinances for trailer and tie-down requirements.
2. If applicable, connect the trailer brakes and lights. 3. Lower the ramp (Figure 30). 4. Raise the platform. Important: Always keep the platform up when loading and unloading the machine. 5. Back the machine up the ramp (Figure 31). g031405 Figure 31 1. Back the machine up the ramp. 2. Walk the machine down the ramp. 6. Shut off the engine, remove the key, and engage the parking brake. 7.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. CAUTION If you leave the key in the ignition switch, someone could accidently start the engine and seriously injure you or other bystanders. Remove the key from the ignition and disconnect the spark-plug wires from the spark plugs before you do any maintenance. Set the wires aside so that they do not accidentally contact the spark plugs. Maintenance Safety • Never tamper with safety devices.
Maintenance Service Interval Maintenance Procedure Every 100 hours • • • • Every 150 hours • Inspect the primary filter and the air-inlet screen. Every 200 hours • Change the engine-oil filter. • Check, clean and gap the spark plug. Every 300 hours • Replace the primary air filter (more often in dirty or dusty conditions). • Check the inner air filter (more often in dirty or dusty conditions). Every 500 hours • Adjust the caster-pivot bearing. • Check the hydraulic-fluid level.
Lubrication Greasing the Torsion Idler Service Interval: Yearly Greasing the Machine Grease the torsion idler on the mower deck using high-temperature grease at the grease fitting shown in Figure 35. Grease with No. 2 lithium or molybdenum grease. 1. Disengage the PTO and set 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 grease fittings with a rag. Important: Use only high-temperature grease.
Greasing the Caster-Wheel Hubs 10. Insert the assembled nut and axle into the wheel on the side of the wheel with the new seal and bearing. Service Interval: Yearly 11. With the open end of the wheel facing up, fill the area inside the wheel around the axle full of general-purpose grease. Grease type: Lithium or molybdenum grease 1. Park the machine on a level surface, disengage the PTO, and engage the parking brake. 12. Insert the second bearing and the new seal into the wheel. 2.
Greasing the Motion Controls Service Interval: Yearly Grease the operator-presence-control balljoint and the motion-control bushing for both levers. Note: Use an oil drip between the lever brackets to grease the bushing, located in the pivot tube. g228035 Figure 37 1. Voltage regulator 2. Regulator blades Greasing the Brake Calipers Service Interval: Yearly Apply a rust-preventative spray to the brake calipers yearly. g228034 Figure 39 g228033 Figure 38 1. Operator-presence control balljoint 1.
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 from the muffler and other hot surfaces. Servicing the Air Cleaner g012996 Figure 40 Service Interval: Every 150 hours Every 300 hours/Yearly (whichever comes first)—Replace the primary air filter (more often in dirty or dusty conditions). 1. Air-inlet cover 3. Air-cleaner body 2. Air-inlet screen 4.
Inspecting the Filters 1. Servicing the Engine Oil Inspect the safety filter. If it is dirty, replace both the safety and primary filters. Engine-Oil Specifications Important: Do not attempt to clean the Oil Type: Detergent oil (API service SJ or higher) safety filter. If the safety filter is dirty, then the primary filter is damaged. 2. Oil Capacity: 1.65 L (56 fl oz) with the filter; 1.
Checking the Engine-Oil Level Service Interval: Before each use or daily Note: Check the oil when the engine is cold. WARNING Contact with hot surfaces may cause personal injury. g032691 Keep your hands, feet, face, clothing and other body parts away the muffler and other hot surfaces. Important: Do not overfill the crankcase with oil because damage to the engine may result. Do not run engine with oil below the low mark because the engine may be damaged. 1.
Changing the Engine Oil Service Interval: After the first 8 hours Every 100 hours Note: Dispose of the used oil at a recycling center. 1. Park the machine so that the drain side is slightly lower than the opposite side to assure the oil drains completely. 2. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 3. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 4.
Changing the Engine-Oil Filter Service Interval: Every 200 hours Note: Change the engine-oil filter more frequently when operating conditions are extremely dusty or sandy. 1. Drain the oil from the engine; refer to Changing the Engine Oil (page 33). 2. Change the engine-oil filter (Figure 46). g032710 g194610 Figure 45 6. Start the engine and drive to a flat area. 7. Check the oil level again.
Servicing the Spark Plug Checking the Spark Plug Service Interval: Every 200 hours 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. Make sure that the air gap between the center and side electrodes is correct before installing the spark plug. 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.
Checking the Spark Arrester Fuel System Maintenance For Machines with a Spark Arrester Draining the Fuel Tank You can drain the fuel tank by removing it and pouring the fuel out of the fill neck; refer to Removing the Fuel Tank (page 37). You can also drain the fuel tank by using a siphon in the following procedure. Service Interval: Every 50 hours WARNING Hot exhaust-system components may ignite fuel vapors even after you shut off the engine.
Replacing the Fuel Filter Removing the Fuel Tank 1. Lower the platform. 2. Release the cushion; refer to Releasing the Cushion for Rear Access (page 26). 3. Service Interval: Every 800 hours/Yearly (whichever comes first) Do not install a dirty filter if it is removed from the fuel line. Remove the cross bracket. Note: Wipe up any spilled fuel. 1. Park the machine on a level surface, disengage the PTO, and engage the parking brake. 2.
Electrical System Maintenance Electrical System Safety • Disconnect the battery or remove the spark-plug wire before making any repairs. Disconnect the negative terminal first and the positive terminal last. Connect the positive terminal first and 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.
Installing the Battery Charging the Battery Install the battery as shown in Figure 55. WARNING Charging the battery produces gasses that can explode. Never smoke near the battery and keep sparks and flames away from battery. Important: Always keep the battery fully charged (1.265 specific gravity) to prevent battery damage when the temperature is below 0°C (32°F). 1. Remove the battery from the chassis; refer to Removing the Battery (page 38). 2. Check the electrolyte level. 3.
Servicing the Fuses Drive System Maintenance The electrical system is protected by fuses and requires no maintenance. If a fuse blows, check the component or circuit for a malfunction or short. Adjusting the Tracking 1. Release the cushion from the rear of the machine. 2. Pull out the fuse to remove or replace it (Figure 56). 3. Install the cushion to the rear of the machine.
5. Note: If you are unable to achieve proper Adjusting the Caster-Pivot Bearing tracking by adjusting the left control rod, contact your Authorized Service Dealer. Service Interval: Every 500 hours/Yearly (whichever comes first) Check for proper tracking, and adjust the rod as necessary. 6. Check that the machine does not creep from the neutral position with the park brakes disengaged. 1.
Servicing the Caster Wheels and Bearings 9. 10. The caster wheels rotate on a roller bearing supported by a spanner bushing. If the bearing is kept well lubricated, wear will be minimal. Failure to keep the bearing well lubricated causes rapid wear. A wobbly caster wheel usually indicates a worn bearing. 1. Tighten the locknut until the spanner bushing bottoms against the inside of the caster forks (Figure 60). Grease the fitting on the caster wheel.
4. Check the condition of the wire-harness leads, connectors, and terminals. Clean or repair them as necessary. 5. Verify that 12 V is present at the clutch connector when the you engage the PTO switch. Note: Due to the way the rotor and Measure the gap between the rotor and armature. If the gap is greater than 1 mm (0.04 inch), proceed with the following steps: armature faces wear (peaks and valleys), it is sometimes difficult to measure the true gap. 6. A. E. Using a 0.
F. Cooling System Maintenance Perform the following safety check: i. Sit on the seat and start the engine. ii. Make sure that the blades do not engage when the PTO switch is in the OFF position and the clutch is disengaged. Cleaning the Air-Intake Screen Note: If the clutch does not disengage, install the shim, and refer to Troubleshooting (page 59). iii.
Brake Maintenance Belt Maintenance Testing the Parking Brake Checking the Belts Service Interval: Before each use or daily Service Interval: Every 100 hours—Check the mower-deck belt(s). Before each use, test the parking brake on both a level surface and slope. Check belts for cracks, frayed edges, burn marks, wear, signs of overheating, or any other damage. Always engage the parking brake when you stop the machine or leave it unattended. If the parking brake does not hold securely, adjust it. 1.
Replacing the Transmission Belt Service Interval: Every 1,000 hours—Replace the transmission belt. 1. Remove the fuel tank; refer to Removing the Fuel Tank (page 37). 2. Remove the hydraulic-reservoir cap. 3. Locate the drain plugs in the bottom of the transmission and place a drain pan under the plug (Figure 70). g032680 Figure 70 1. Drain plug 4. Allow the hydraulic fluid to drain from the machine. 5. Remove the lower hydraulic hose (Figure 71). g031344 Figure 69 g031345 Figure 71 1.
Controls System Maintenance CAUTION The spring is under tension when installed and can cause personal injury. Wear safety glasses and be careful when removing the spring. Adjusting the Motion-Control Levers 7. Remove the deck belt from the clutch and clutch stop (Figure 71). 8. Install the new belt. 9. Install the tension spring and lower hydraulic hose. 1. Park the machine on a level surface, disengage the PTO, and engage the parking brake. 10.
Hydraulic System Maintenance Hydraulic System Safety • Seek immediate medical attention if fluid is injected into skin. Injected fluid must be surgically removed within a few hours by a doctor. • Ensure that all hydraulic-fluid hoses and lines are in good condition and all hydraulic connections and fittings are tight before applying pressure to the hydraulic system. g031538 Figure 73 1. Cam 2. Nut • Keep your body and hands away from pinhole 7.
4. Remove the hydraulic-reservoir cap. 5. Locate the drain plug in the bottom of each transmission and place a drain pan under the plugs (Figure 75). g031401 Figure 74 g032671 1. Hydraulic-tank cap Figure 75 2. Fill level 1. Drain plug 4. 2. Hydraulic filter Remove the cap from the filler neck (Figure 74). Note: Look inside to check the fluid level in the reservoir. 5. Add fluid to the reservoir until it reaches the reaches the minimum cold fill level. 6. Install the cap on the filler neck.
Important: Use the fluid specified in Hydraulic System Specifications (page 48) or equivalent. Other fluids could cause system damage. Mower Deck Maintenance Important: Monitor the level of fluid in the Servicing the Cutting Blades hydraulic tank so that you do not overfill it. 13. Tighten the vent plugs. 14. Install the hydraulic-tank cap. 15. Install the fuel tank. 16. Start the engine and let it run for about 2 minutes to purge air from the system. 17.
WARNING A blade that is bent or damaged could break apart and could critically injure you or bystanders. • Always replace a bent or damaged blade with a new blade. • Do not file or create sharp notches in the edges or surfaces of the blade. g006530 Figure 77 1. Cutting edge 3. Wear/slot forming 2. Curved area 4. Crack Removing the Blades Replace the if a blade hits a solid object, is out of balance, or is bent.
g000552 Figure 80 1. Sharpen at original angle. 2. Check the balance of the blade by putting it on a blade balancer (Figure 81). Note: If the blade stays in a horizontal position, the blade is balanced and can be used. Note: If the blade is not balanced, file some metal off the end of the sail area only (Figure 81). g004536 Figure 82 g000553 1. Sail area of the blade 3. Spring disk 2. Blade 4. Blade bolt Figure 81 1. Blade 3. 2.
5. Remove the 2 bolts, 2 nuts, and washer connecting the mower-deck hangers to the lift plates for both sides of the mower deck (Figure 84 and Figure 85). remove the clutch to prevent corrosion as follows: A. Unplug the wire harness from the clutch (Figure 42). Note: Retain the mounting hardware with the deck chains. g033737 Figure 84 Left Side of 52-inch Deck Shown g226599 1. Lift plate 4. Nut 2. Bolt 5. Mower-deck hanger Figure 86 3. Washer 1. Wire harness 4. Spring washer 2. Clutch 3.
Installing the Mower Deck Checking the Mower Deck Side-to-Side Height 1. Slide the mower deck under the machine. 2. Rotate the caster wheels rearward. 1. Adjust the rear-tire pressure. 3. Connect the deck hangers to the lift plates using the 2 bolts, 2 nuts, and 2 washers that you retained for each side of the mower deck. 2. Ensure that the blades are not bent; refer to Checking for Bent Blades (page 51). 3. Position the blades side to side.
g032694 Figure 89 1. Top bolt 4. Side nut 2. Jam nut 5. Adjust these yokes to adjust the right side of the mower deck. 6. Adjust these yokes to adjust the left side of the mower deck. 3. Yoke 2. g001041 Figure 90 1. Measure the blade at points A and B 4. Rotate the top bolt of the yokes to adjust the height of the mower deck (Figure 89). Tighten the jam nuts and side bolts. 4. Check the side-to-side height; refer to Checking the Mower Deck Side-to-Side Height (page 54).
Adjusting the Deck-Lift Spring Note: Rotate the bolt clockwise to raise the deck; rotate the bolt counterclockwise to lower it. 3. Tighten the jam nuts and side bolts. 4. Check the front-to-rear pitch; refer to Checking the Mower Deck Front-to-Rear Pitch (page 55). Note: Adjusting the compression spring alters how much the deck floats and the amount of effort needed to lift the deck when using the height-of-cut lever.
Replacing the Grass Deflector Cleaning Cleaning under the Mower Deck 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. Service Interval: Before each use or daily Before each use or daily Remove the grass buildup under the mower daily. Do not operate the machine unless you install a cover plate, a mulch plate, grass deflector, or bagger. 1.
Storage E. Important: Do not store fuel containing Storage Safety stabilizer/conditioner longer than the duration recommended by the fuel-stabilizer manufacturer. • Let the engine cool before storing the machine. • Do not store the machine or fuel near flames or drain the fuel indoors. Cleaning and Storage 10. Remove the spark plug(s) and check its condition; refer to Servicing the Spark Plug (page 35). 11.
Troubleshooting Problem The engine does not start, starts hard, or fails to keep running. The engine loses power. The engine overheats. The machine does not drive. There is abnormal vibration. Possible Cause Corrective Action 1. The fuel tank is empty or the shutoff valve is closed. 1. Fill the fuel tank with fuel and open the valve 2. A spark-plug wire is loose or disconnected. 3. A spark plug is pitted, fouled, or the gap is incorrect. 4. The air cleaner is dirty. 5. Dirt is in the fuel filter.
Problem The cutting height is uneven. Possible Cause 1. Blade(s) are not sharp. 1. Sharpen the blade(s). 2. Cutting blade(s) is/are bent. 3. The mower deck is not level. 2. Install new cutting blade(s). 3. Level the mower deck side-to-side position. 4. Adjust the front-to-rear pitch. 5. Clean the underside of the mower deck. 6. Adjust the tire pressure. 7. Contact an Authorized Service Dealer. 4. The mower deck pitch is wrong. 5. The underside of mower deck is dirty. 6.
Schematics g233853 Electrical Schematic (Rev.
Notes:
Notes:
California Proposition 65 Warning Information What is this warning? You may see a product for sale that has a warning label like the following: WARNING: Cancer and Reproductive Harm—www.p65Warnings.ca.gov. What is Prop 65? Prop 65 applies to any company operating in California, selling products in California, or manufacturing products that may be sold in or brought into California.
