Form No. 3361-373 Rev A GrandStand™ Mower with a 48in or 52in TURBO FORCE® Cutting Unit Model No. 74558—Serial No. 290000001 and Up Model No. 74559—Serial No. 290000001 and Up Model No. 74568—Serial No. 290000001 and Up Model No. 74569—Serial No. 290000001 and Up Model No. 79558—Serial No. 290000001 and Up Model No. 79559—Serial No. 290000001 and Up Register at www.Toro.com.
Warning CALIFORNIA Proposition 65 Warning The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. This spark ignition system complies with Canadian ICES-002. Figure 1 Important: This engine is not equipped with a spark arrester muffler. It is a violation of California Public Resource Code Section 4442 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land.
Think Safety First ............................................... 14 Operating the Parking Brake ............................... 14 Operating the Mower Blade Control Switch (PTO) ............................................................ 15 Operating the Throttle ....................................... 15 Operating the Choke .......................................... 15 Operating the Ignition Switch ............................. 16 Using the Speed Control Lever ...........................
Safety – Never remove gas cap or add fuel with engine running. Allow engine to cool before refueling. Do not smoke. – Never refuel or drain the machine indoors. • Check that operator’s presence controls, safety switches and shields are attached and functioning properly. Do not operate unless they are functioning properly. Note: The addition of attachments made by other manufacturers that do not meet American National Standards Institute certification will cause noncompliance of this machine.
This product is designed for cutting and recycling grass or, when equipped with a grass bagger, for catching cut grass. Any use for purposes other than these could prove dangerous to user and bystanders. • Be aware of the mower discharge direction and do not point it at anyone. • Do not operate the mower under the influence of alcohol or drugs. • Use care when loading or unloading the machine into or from a trailer or truck.
• Keep nuts and bolts tight, especially the blade attachment bolts. Keep equipment in good condition. • Never tamper with safety devices. Check safety systems for proper operation before each use. • Use only genuine replacement parts to ensure that original standards are maintained. • Check brake operation frequently. Adjust and service as required.
Slope Chart 7
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. 98-5954 1-403005 Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 2. No fire, open flame, or smoking. 1-523552 3. Caustic liquid/chemical burn hazard 4. Wear eye protection 5. Read the Operator’s Manual. 6. Keep bystanders a safe distance from the battery. 7.
110-2067 117-0456 1. Height of cut (HOC)—high 2. Height of cut (HOC)—medium 3. Height of cut (HOC)—low 110-2068 1. Read the Operator’s Manual. 117-0485 115-4186 1. 2. 3. 4. 5. 6.
117-0453 1. Parking brake—disengage 2. Parking brake—engage 3. Choke 4. Speed control lever 5. Fast 9. Power Take-off (PTO)—disengage 6. Continuous variable setting 10. Engine speed 7. Slow 11. Height of cut (HOC)—low 8. Power Take-off 12. Height of cut (PTO)—engage (HOC)—medium 13. Height of cut (HOC)—high 117-0454 1. Traction control 2. Fast 5. Reverse 6. Power Take-off (PTO)—disengage 3. Slow 4. Neutral 7. Operator presence switch 117–3626 1. Warning—read the Operator’s Manual. 5.
Product Overview Figure 3 1. 2. 3. 4. 5. 6. 7. Figure 2 1. 2. 3. 4. 5. 6. Side discharge chute Battery Engine Fuel shut-off valve Fuel tank Controls 7. 8. 9. 10. 11. 12. Control levers Manual tube Platform (down position) Hydraulic tank Mower deck Front caster wheel Parking brake lever Choke Ignition switch Fuel guage Speed control lever Blade control switch (PTO) Throttle control 8. 9. 10. 11. 12. 13.
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. Specifications Note: Specifications and design are subject to change without notice. Figure 4 1. Safety interlock symbols 2. Battery light 48 inch mowers: 3. Hour meter Speed Control Lever This machine has a variable speed control. This controls how fast or slow the machine will travel. Width with deflector down 63.5 inches (161.
Operation 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. Adding Fuel Use Unleaded Regular Gasoline suitable for automotive use (85 pump octane minimum). Leaded regular gasoline may be used if unleaded regular is not available. • Always place gasoline containers on the ground away from your vehicle before filling.
Breaking In a New Machine Important: Do not use fuel additives containing methanol or ethanol. 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. Add the correct amount of gas stabilizer/conditioner to the gas. Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline.
G009174 Figure 8 Figure 6 1. Parking brake engaged 2. Parking brake released Operating the Throttle Releasing the Parking Brake The throttle control can be moved between Fast and Slow positions (Figure 9). Pull the brake lever back and over into the slot and push the parking brake lever forward. Always use the fast position when turning on the mower deck with the blade control switch (PTO).
Using the Speed Control Lever This machine has a speed control lever that sets the speed of the machine. This can be adjusted to the operator’s desired speed. It is recommended to use the slowest speed for new operator’s. 1 1. Move the speed control lever to set the desired speed. 2. Move the control levers to drive the machine. The control levers may be pushed forward to the front reference bar while the speed of the machine is controlled by the speed control lever. 2 G008959 Figure 10 1. On 2.
1 2 Figure 14 7. Turn the ignition key to the Start position (Figure 11). When the engines starts, release the key. G008948 Figure 13 1. On 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. 2.
Stopping the Engine The Safety Interlock System Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended. If safety interlock switches are disconnected or damaged the machine could operate unexpectedly causing personal injury. Always remove the ignition key and set the parking brake when leaving the machine unattended, even if just for a few minutes. • Do not tamper with the interlock switches.
1. Start the engine; refer to Starting and Stopping the Engine in Operation , page 13. Operating the Platform 2. Set the parking brake. The machine can be used with the platform in the up or down position. It is the operator’s preference on which position to use. 3. Move the right side motion control lever to the center, un-locked position. The blades should not rotate. Operating the Machine with the Platform Up 4. Move the motion control levers forward. The engine should kill. 5.
2. Move the right side motion control lever to the center, un-locked position. Figure 19 1. Front reference bar 2. Left control lever 4. Right control lever 5. Right control lever in the neutral lock position 3. Rear reference bar Figure 18 1. Platform up 3. To go forward, move the speed control lever to the desired speed. 3. Pull the knob out to lower the platform 2. Platform down 4. Slowly push the motion control levers forward (Figure 20).
Set the parking brake when you leave the machine; refer to Setting the Parking Brake in Operation , page 13. 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. Always remove the ignition key and set the parking brake when leaving the machine unattended, even if just for a few minutes. Pushing the Machine by Hand The by-pass valves allow the machine to be pushed by hand without the engine running.
3. 4. 5. 6. Release the parking brake. Push the machine to the desired location. Set the parking brake. Close the by-pass valves, but do not overtighten them. extend beyond the rear tires is recommended instead of individual ramps for each side of the unit (Figure 24). The lower rear section of the tractor frame extends back between the rear wheels and serves as a stop for tipping backward. Having a full width ramp provides a surface for the frame members to contact if the unit starts to tip backward.
Adjusting the Height-of-Cut The height-of-cut can be adjusted from 1 to 4-1/2 inch (25 to 114 mm) in 1/4 inch (6 mm) increments. 1. Move the height-of-cut lever to the transport position (all the way up). 2. Select a hole in the height-of-cut bracket corresponding to the height-of-cut desired and, insert the pin (Figure 25). 3. Lower the height-of-cut lever to the pin (Figure 25). Figure 24 1. Trailer 2. Full width ramp 3. Not greater than 20 degrees 4.
Figure 26 1. Cam lock 2. Lever 3. Rotate cam to increase or decrease locking pressure 4. Slot Figure 27 Positioning the Flow Baffle Position B The following figures are only recommendations for use. Adjustments will vary by grass type, moisture content, and height of grass. Use this position when bagging (Figure 28). Note: If the engine power draws down and the mower ground speed is the same, open up the baffle. Position A This is the full rear position (see Figure 27).
Figure 29 Using the Mid-Size Weight • Weights are installed to improve handling, balance and improve performance. Weights can be added or removed to create optimized performance under different mowing conditions and for operator preference. • It is recommended that weights be added or removed one at a time until the desired handing and balance is achieved. Note: Contact an Authorized Service Dealer to order a Weight Kit. Excessive weight changes can effect handling and operation of the machine.
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 8 hours • Change the engine oil. • Check the hydraulic fluid level. • Change the hydraulic filter. Before each use or daily • • • • • • Check the safety interlock system. Check the engine oil level. Clean the air intake screen. Check the brakes. Inspect the blades. Clean the mower deck.
Premaintenance Procedures Raising the Mower for Access The front of the mower can be raised and supported on its back for access under the machine for maintenance. 1. Raise the platform. Refer to Operating the Platform in Operation. 2. Remove the battery. Figure 31 1. Cap 2. Piece of plastic 3. Hydraulic tank 5. With two people, raise the front of the mower so it rests on the drive tires and the platform in the up position. 6. Perform any maintenance on the machine. 7.
Figure 33 1. Pin 2. Cushion bracket Figure 32 1. Remove battery 2. With two people, lift the front end of the mower (ensure the platform is up) Remove the Cushion for Rear Access The cushion can be removed for rear access to the machine for maintenance or adjustment. 1. Lower the platform. 2. Remove the hairpin cotter pins on each side of the cushion. 3. Slide the cushion to the side to remove it from the pins and plastic bushings on both sides. 4. Lower the cushion to the platform. 5.
Lubrication Grease with No. 2 general purpose lithium base or molybdenum base grease. Lubricate the traction rollers with a dry lubricant (PTFE). How to Grease 1. Disengage the PTO and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Figure 34 3. Clean the grease fittings with a rag. Make sure to scrape any paint off the front of the fitting(s). 4. Connect a grease gun to the fitting.
Engine Maintenance Servicing the Air Cleaner Service Interval/Specification Inspect the foam and paper elements and replace them if they are damaged or excessively dirty. Note: Service the air cleaner more frequently (every few operating hours) if the operating conditions are extremely dusty or sandy. Important: Do not oil the foam or paper element. Removing the Foam and Paper Elements Figure 37 1. Disengage the PTO and set the parking brake. 2.
Installing the Foam and Paper Elements Important: To prevent engine damage, always operate the engine with the complete foam and paper air cleaner assembly installed. 1. Carefully slide the foam element onto the paper air cleaner element (Figure 38). 2. Place the air cleaner assembly onto the air cleaner base and secure it with the 2 wing nuts (Figure 38). 3. Place the air cleaner cover into position and tighten the cover knob (Figure 38).
Contact with hot surfaces may cause personal injury. Keep 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. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. 2.
3. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. 1 2 3 4 5 6 4. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position (Figure 41). G008796 Figure 42 Changing the Engine Oil Filter 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. 2.
Type for 19hp Engines: Champion® RCJ8Y or equivalent Type for 23hp Engines: NGK® BPR4ES or equivalent Air Gap: 0.030 inch (0.75 mm) Removing the Spark Plug 2 1 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3 5 4 6 Figure 44 3/4 G008748 Figure 43 Checking the Spark Plug Important: Never clean the spark plug(s).
Installing the Spark Plug Fuel System Maintenance Tighten the spark plug(s) to 16 ft.-lb (22 N-m). Draining the Fuel Tank Note: There is no other recommended way to drain fuel from the tank, other than using a syphon pump. A syphon pump can be purchased at a hardware store. Figure 46 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. • Drain gasoline from the fuel tank when the engine is cold.
Servicing the Fuel Filter Replacing the Fuel Filter Electrical System Maintenance Service Interval: Every 400 hours/Yearly (whichever comes first) Servicing the Battery Never install a dirty filter if it is removed from the fuel line. Note: Wipe up any spilled fuel. Always keep the battery clean and fully charged. Use a paper towel to clean the battery case. If the battery terminals are corroded, clean them with a solution of four parts water and one part baking soda.
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 Reconnect the positive (red) battery cable before reconnecting the negative (black) cable. 1. Disengage the PTO and set the parking brake. 2.
Important: Always keep the battery fully charged (1.265 specific gravity). This is especially important to prevent battery damage when the temperature is below 32°F (0°C). 1. Remove the battery from the chassis; refer to Removing the Battery. 2. Check the electrolyte level; refer to Checking the Electrolyte Level. Figure 50 1. Vent caps 2. Upper line 3. Lower line 3. Make sure the filler caps are installed in battery. Charge battery for 1 hour at 25 to 30 amps or 6 hours at 4 to 6 amps. 2.
Drive System Maintenance Adjusting the Tracking Note: Determine the left and right sides of the machine from the normal operating position. 1. Push both control levers forward the same distance. 2. Check if the machine pulls to one side. If it does, stop the machine and set the parking brake. 3. Remove the cushion from the rear of the machine. 4. Rotate the thumb adjustment on the side of the machine that it tracks to (as viewed from the rear of the machine)(Figure 53). 5.
Checking the Tire Pressure Service Interval: Every 50 hours/Monthly (whichever comes first) Maintain the air pressure in the rear tires at 12-14 psi (83-97 kPa). Uneven tire pressure can cause an uneven cut. Note: The front tires are semi-pneumatic tires and do not require air pressure maintenance. Figure 55 1. Spring Washers 2. Lock Nut Figure 54 3. Dust Cap Servicing the Caster Wheel and Bearings The caster wheels rotate on a roller bearing supported by a spanner bushing.
Cooling System Maintenance 2. Remove one bushing, then pull the spanner bushing and roller bearing out of the wheel hub (Figure 56). 3. Remove the other bushing from the wheel hub and clean any grease and dirt from the wheel hub (Figure 56). Cleaning the Air Intake Screen 4. Inspect the roller bearing, bushings, spanner bushing and inside of the wheel hub for wear. Replace any defective or worn parts (Figure 56).
Brake Maintenance Servicing the Brake Before each use, check brakes on both a level surface and slope. Always set the parking brake when you stop the machine or leave it unattended. If the parking brake does not hold securely, an adjustment is required. Checking the Parking Brake Service Interval: Before each use or daily 1. Park the machine on a level surface, disengage the PTO. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3.
Belt Maintenance Replacing the Mower Deck Belt Service Interval: Every 100 hours—Check the mower deck belt. Squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks and cracks are signs of a worn deck belt. Replace the deck belt if any of these conditions are evident. 1. Disengage the PTO and set the parking brake. Figure 59 1. Jam Nut 2. Yoke 3. Clevis pin 2.
Figure 62 1. Hydraulic pumps 2. Idler pulley 3. Clutch pulley 7. Unhook the idler spring from the frame (Figure 62). Figure 61 1. 5-3/4 inches (14.6 cm) from hook to hook 2. Spring 3. Spring loaded idler 4. Clutch retainer 5. Clutch wire connector 6. Pump drive belt 8. Install the new belt around clutch and the two pump pulleys. 4. Ratchet 5. Square hole for ratchet 6. Nut 9. Install the idler spring between idler arm and frame bracket (Figure 62). 10.
Controls System Maintenance Adjusting the Motion Control Handle Positions Adjusting the Right Side Motion Control Lever If the motion control levers do not align horizontally, adjust the right side motion control lever. Note: Adjust the horizontal alignment before the front to back alignment. Figure 64 1. Disengage the PTO, move the right side motion control lever to the neutral position and set the parking brake. 1. Switch screws 2. Cam 2.
Figure 66 1. Left motion control lever 2. Right motion control lever 2. Rotate the thumb adjustments on either side. Adjust them in quarter-turn increments until the right side control lever moves easily into the neutral lock position and the control levers align. Figure 65 1. Switch 3. Neutral locked position 4. Align the control levers front to back 3. Right motion control lever in the neutral unlocked position 3. Check for proper tracking. Refer to Adjusting the Tracking in the Maintenance Section.
Hydraulic System Maintenance 8. Recheck the fluid level while the fluid is warm. If required, add fluid to the reservoir until it reaches the hot level of the baffle. Note: The fluid level should be to the top of the hot level of the baffle, when the fluid is warm (Figure 68). Servicing the Hydraulic System 9. Install cap on filler neck. Checking the Hydraulic Fluid Service Interval: After the first 8 hours Every 50 hours Hydraulic fluid escaping under pressure can penetrate skin and cause injury.
3. Remove hydraulic reservoir cap and temporarily cover opening with a plastic bag and rubber band to prevent all hydraulic fluid from draining out. 4. Locate the filter under the fuel tank and place drain pan under filter (Figure 69). Figure 70 1. Hydraulic filter 2. Gasket 3. Adapter 10. Clean up any spilled fluid. 11. Check the fluid in the reservoir, add fluid to the tank until it reaches the cold baffle of the tank. Important: Use oil specified or equivalent. Other fluids could cause system damage.
Check hydraulic lines and hoses for leaks, loose fittings, kinked lines, loose mounting supports, wear, weather and chemical deterioration. Make necessary repairs before operating. Mower Deck Maintenance Note: Keep areas around hydraulic system clean from grass and debris build up. Servicing the Cutting Blades To ensure a superior quality of cut, keep the blades sharp. For convenient sharpening and replacement, you may want to keep extra blades on hand.
Checking for Bent Blades Removing the Blades 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. Blades must be replaced if a solid object is hit, if the blade is out of balance or is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made by other manufacturers may result in non-conformance with safety standards. 1.
2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Disconnect the spark plug wire(s) from the spark plug(s). the end of the sail area only (Figure 73). Repeat this procedure until the blade is balanced. 3. Adjust the tire pressure in the rear tires to 12-14 psi (83-97 kPa). Figure 75 1. Blade 4. Check that the blades and spindle shafts are not bent. Refer to Checking for Bent Blades. 2. Balancer 5. Set the height-of-cut to the 3 inch (7.
1. Change the rear tire pressure. Do this to the corresponding side that needs adjustment. 2. Locate the U-plates on the side of the engine deck (Figure 78). 3. Loosen the U-plate on one side and adjust it up or down to make the difference between measurements B and C no more than a 1/4 inch (6 mm) (Figure 78). 4. Proceed to Checking the Mower Deck Front-to-Rear Pitch. Figure 79 1. Measure blade at points A and B 2.
5. Check the front-to-rear pitch of the cutting unit. 6. If the dimensions are not correct, adjust the front and rear nuts on either side to get the correct front-to-rear pitch (Figure 81). Figure 82 1. Measure from a level surface 2. Measure blade at point A 4. The measurement should be 3 inch (7.6 cm). 5. If it does not measure correctly, locate the height-of-cut rod on the right side of the machine (Figure 83). 6. Loosen the jam nut and adjust the adjustment nut until the blade tips match 3 inches (7.
Replacing the Grass Deflector position and ensure that it rotates into the full down position. 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. Never operate the lawn mower unless you install a cover plate, a mulch plate, grass deflector or bagger. 1. Remove the locknut, bolt, spring and spacer holding the deflector to the pivot brackets (Figure 84).
Cleaning Storage Cleaning Under the Mower Cleaning and Storage 1. Disengage the power take off (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. Clean dirt and chaff from the outside of the engine’s cylinder head fins and blower housing. Service Interval: Before each use or daily Remove the grass buildup under the mower daily. 1.
inside the cylinder. Install the spark plug(s). Do not install the wire on the spark plug(s). 10. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged or defective. 11. Paint all scratched or bare metal surfaces. Paint is available from your Authorized Service Dealer. 12. Store the machine in a clean, dry garage or storage area. Remove the key from the ignition switch and keep it in a memorable place. Cover the machine to protect it and keep it clean.
Troubleshooting Problem Engine will not start, starts hard, or fails to keep running. Engine loses power. Engine overheats. Machine does not drive. Possible Cause 1. Fuel tank is empty. 1. Fill fuel tank with gasoline. 2. Choke is not on. 3. Spark plug wire is loose or disconnected. 4. Spark plug is pitted, fouled, or the gap is incorrect. 5. Air cleaner is dirty. 6. Dirt in the fuel filter. 7. Dirt, water, or stale fuel is in the fuel system. 8.
Problem Blades do not rotate. Possible Cause Corrective Action 1. Pump drive belt is worn, loose or broken. 1. Check the belt tension. 2. Pump drive belt is off pulley. 2. Install drive belt and check adjusting shafts and belt guides for correct position. 3. Install new deck belt. 3. Mower deck belt is worn, loose or broken. 4. Mower deck belt is off pulley. 5. 6. 7. 8. 9. Broken or missing idler spring. Electric clutch out of adjustment. Clutch connector or wire damaged. Damaged electric clutch.
Schematics Hydraulic Schematic (Rev.
Electrical Schematic (Rev.
Notes: 61
Notes: 62
Notes: 63
The Toro Total Coverage Guarantee A Limited Warranty (see warranty periods below) Conditions and Products Covered The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair the listed Toro Products if defective in materials or workmanship.
