Form No. 3408-477 Rev C Z Master® Professional 7000 Series Riding Mower With 52in, 60in, and 72in TURBO FORCE® Side Discharge Mower Model No. 74266—Serial No. 316000001 and Up Model No. 74267—Serial No. 316000001 and Up Model No. 74274—Serial No. 316000001 and Up Register at www.Toro.com.
It is a violation of California Public Resource Code Section 4442 or 4443 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order or the engine is constructed, equipped, and maintained for the prevention of fire. Please refer to the engine manufacturer’s information included with the machine.
Contents Lubricating the Caster-Wheel Hubs .................. 40 Engine Maintenance ........................................... 41 Engine Safety ................................................... 41 Servicing the Air Cleaner .................................. 41 Servicing the Engine Oil.................................... 42 Fuel System Maintenance ................................... 46 Servicing the Fuel Filter and Water Seperator ......................................................
Safety This machine has been designed in accordance with ANSI B71.4-2012. General Safety This product is capable of amputating hands and feet and of throwing objects. Always follow all safety instructions to avoid serious personal injury. Using this product for purposes other than its intended use could prove dangerous to you and bystanders. • Read and understand the contents of this Operator’s Manual before you start the engine.
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.
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 missing. decal58-6520 decal106-5517 58-6520 106-5517 1. Grease 1. Warning—do not touch the hot surface. decal93-7818 93-7818 1. Warning—read the Operator's Manual for instructions on torquing the blade bolt/nut to 115 to 149 N∙m (85 to 110 ft-lb). decal98-4387 98-4387 1. Warning—wear hearing protection.
decal107-1861 107-1861 decal107-3069 107-3069 1. Warning–there is no rollover protection when the roll bar is down. 2. To avoid injury or death from a rollover accident, keep the roll bar in the raised and locked position and wear the seat belt. Lower the roll bar only when absolutely necessary; do not wear the seat belt when the roll bar is down. 3. Read the Operator's Manual; drive slowly and carefully.
decal107-3963 107-3963 1. Cutting/dismemberment hazard, mower blade—do not carry passengers and keep bystanders away. 3. Thrown object hazard—keep bystanders a safe distance away from the machine and keep the deflector in place. 2. Cutting/dismemberment hazard of hand or foot, mower blade—remove the ignition key and read the instructions before servicing or performing maintenance; stay away from moving parts. 4.
decal107-3968 107-3968 decal108-5981 1. Disengage 3. Parking brake 108-5981 2. Engage decal107-7719 107-7719 1. Cutting/dismemberment hazard, fan and entanglement hazard, belt—stay away from moving parts. decal110-2067 2. Before starting the engine, clean grass and debris from the mower belt and pulleys, insert the ignition key, and start the engine. 110-2067 decal108-5955 108-5955 decal110-2068 110-2068 1. Read the Operator's Manual. decaloemmarkt Manufacturer's Mark 1.
decal112-9028 112-9028 1. Warning—stay away from moving parts; keep all guards in place. decal110-3852 110-3852 1. Remove the ignition key and read the instructions before servicing or performing maintenance. 2. Continuous tone signals the user that engine is overheating. decal114-9600 114-9600 1. Read the Operator's Manual. decal110-3853 110-3853 1. Cutting/dismemberment hazard, fan and entanglement hazard, belt. 2.
decal117-2718 117-2718 decal121-7562 121–7562 decal117-3848 117-3848 1. Thrown object hazard—keep bystanders a safe distance away from the machine. 2. Thrown object hazard, mower-do not operate the machine without the deflector, discharge cover, or grass collection system in place. 1. Push to start 4. Variable-speed control 2. Read the Operator’s Manual for more information on preheating the engine. 5. Fast 3. Slow 3.
decal127-0326 127-0326 1. Read the Operator's Manual. 3. Remove the key from the ignition and read the Operator's Manual before performing maintenance or servicing the machine. 2. Height of cut decal110-0820 110-0820 1. Fast 5. Warning—read the Operator's Manual. 2. Slow 6. Poison and caustic liquid/chemical burn hazard—keep children a safe distance away from the battery. 3. Neutral 7. Explosion hazard—no fire, open flames, or smoking; avoid sparks. 4. Reverse 8.
decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystanders a safe distance away from the battery. 2. No fire, open flame, or smoking 7. Wear eye protection; explosive gases can cause blindness and other injuries. 3. Caustic liquid/chemical burn hazard 4. Wear eye protection. 8. Battery acid can cause blindness or severe burns. 9. Flush eyes immediately with water and get medical help fast. 5. Read the Operator's Manual. 10.
decal132-0871 132-0871 Note: This machine complies with the industry standard stability test in the static lateral and longitudinal tests with the maximum recommended slope indicated on the decal. Review the instructions for operating the machine on slopes in the Operator’s Manual as well as the conditions in which you would operate the machine to determine whether you can operate the machine in those conditions on that day and at that site.
Product Overview g010363 Figure 5 1. Hour meter g208514 Figure 4 1. Height-of-cut deck lift pedal 7. Fuel cap 2. Parking-brake lever 8. Seat belt 3. Transport lock 4. Motion-control lever 5. Roll bar 6. Engine screen 9. Controls 10. Mower deck 11. Caster wheel Controls Become familiar with all of the controls before you start the engine and operate the machine (Figure 4 and Figure 5). 15 6. Glow-plug light 2. Ignition switch 7. Engine-temperature light 3. Fuel-selector valve 4.
Hour Meter Ignition Switch The hour meter records the number of hours the engine has operated. It operates when the engine is running. Use these times for scheduling regular maintenance (Figure 5). Use this switch to start the mower engine. It has 3 positions: START , RUN, and OFF. Glow-Plug Light Safety-Interlock Indicators The glow-plug-indicator light illuminates when you engage the glow-plug button (Figure 5).
Operation containers on the ground, away from your vehicle before filling. • Remove the equipment from the truck or trailer Note: Determine the left and right sides of the machine from the normal operating position. and refuel it while it is on the ground. If this is not possible, then refuel from a portable container rather than a fuel-dispenser nozzle. Before Operation • Do not operate the machine without the entire exhaust system in place and in proper working condition.
Biodiesel Ready This machine can also use a biodiesel blended fuel of up to B20 (20% biodiesel, 80% petrodiesel). The petrodiesel portion should be low or ultra low sulfur. Observe the following precautions: • The biodiesel portion of the fuel meet specification ASTM D6751 or EN14214. • The blended fuel composition should meet ASTM D975 or EN590. • Painted surfaces may be damaged by biodiesel blends. • Use B5 (biodiesel contend of 5%) or lesser blend in cold weather.
Important: Always use the seat belt with the roll bar in the raised position. WARNING There is no rollover protection when the roll bar is in the down position. • Lower the roll bar only when absolutely necessary. • Do not wear the seat belt when the roll bar is in the down position. • Drive slowly and carefully. • Raise the roll bar as soon as clearance permits. • Check carefully for overhead clearances (i.e., branches, doorways, electrical wires) before driving under any objects and do not contact them.
DANGER CAUTION Operating the machine while the roll bar is down may lead to serious injury or death in the event of a rollover. This machine produces sound levels in excess of 85 dBA at the operator’s ear and can cause hearing loss through extended periods of exposure. Always keep the roll bar in the fully raised and locked position and use the seat belt. Wear hearing protection when operating this machine. Use protective equipment for your eyes, ears, hands, feet, and head. g009027 Figure 11 1.
engine. While the engine is running, center either motion control and move (forward or reverse); the engine should shut off. Repeat for other motion control. The safety-interlock system also is designed to shut off the engine when the traction controls are moved from the locked position with the parking brake engaged or if you rise from the seat when the PTO is engaged. 5. The hour meter has symbols to notify the user when the interlock component is in the correct position.
Changing the Seat Suspension The seat adjusts to provide a smooth and comfortable ride. Position the seat where you are most comfortable. To adjust, turn the knob in front either direction to provide the best comfort (Figure 15). g000950 Figure 14 1. Seat latch 2. Fuel cap 3. Seat g019768 Figure 15 1.
During Operation • Never leave a running machine unattended. • Before leaving the operating position (including to empty the catchers or to unclog the chute), do the following: During Operation Safety – Stop the machine on level ground. General Safety – Disengage the power take-off and lower the attachments. • The owner/operator can prevent and is responsible for accidents that may cause personal injury or property damage. – Engage the parking brake. – Shut off the engine and remove the key.
Operating the Parking Brake Operating the Mower Blade-Control Switch (PTO) Always engage the parking brake when you stop the machine or leave it unattended. The blade-control switch (PTO) starts and stops the mower blades and any powered attachments. Engaging the Parking Brake Engaging the Blade-Control Switch (PTO) WARNING Note: Engaging the blade-control switch (PTO) with the throttle position at half or less causes excessive wear to the drive belts.
Operating the Throttle Starting and Shutting Off the Engine You can move the throttle control between the FAST and SLOW positions (Figure 20). Starting the Engine in Normal Weather Always use the FAST position when turning on the mower deck with the blade-control switch (PTO). Important: Use starting cycles of no more than 30 seconds per minute to avoid overheating the starter motor.
Starting the Engine in Cold Weather (Below 23°F or -5°C) Shutting Off the Engine CAUTION Use the correct engine oil for the starting temperature; refer to Servicing the Engine Oil (page 42). Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended. Important: Use starting cycles of no more than 30 seconds per minute to avoid overheating the starter motor.
Using the Motion-Control Levers CAUTION Machine can spin very rapidly. Operator may lose control of machine and cause personal injury or damage to machine. • Use caution when making turns. • Slow the machine down before making sharp turns. g004532 Figure 25 1. Motion-control lever—NEUTRAL-LOCK position 4. Backward 2. Center, unlocked position 5. Front of machine 3. Forward Driving the Machine The drive wheels turn independently, powered by hydraulic motors on each axle.
Driving Forward Driving Backward Note: The engine stops when you move the traction-control with the parking brake engaged. To stop, pull the motion-control levers to the NEUTRAL position. 1. Disengage the parking brake; refer to Disengaging the Parking Brake (page 24). 2. Move the levers to the center, unlocked position. 3. To go forward, slowly push the motion-control levers forward (Figure 26). 1. Move the levers to the center, unlocked position. 2.
Stopping the Machine Adjusting the Height of Cut To stop the machine, move the traction control levers to the NEUTRAL position and then to the NEUTRAL-LOCK position, disengage the blade-control switch (PTO), and turn the ignition key to the OFF position. Adjust the height of cut from 38 to 127 mm (1-1/2 to 5 inches) in 6 mm (1/4 inch) increments by moving the clevis pin into different hole locations. 1. Engage the parking brake when you leave the machine.
Adjusting the Anti-Scalp Rollers Whenever you change the height of cut, it is recommended to adjust the height of the anti-scalp rollers. 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage 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. g000944 Figure 31 Adjust the anti-scalp rollers as shown in Figure 29, Figure 30, and Figure 31. 1.
Position B Use this position when bagging. Always align it with the blower opening. g027727 Figure 32 Positioning the Flow Baffle The following figures are only recommendations for use. Adjustments vary by grass type, moisture content, and the height of the grass. g005833 Figure 34 Note: If the engine power draws down and the mower ground speed is the same, open up the baffle. Position C Position A This is the full open position.
Operating with the Overheat Sensor more often in early spring. As the grass growth rate slows in mid summer, mow less frequently. If you cannot mow for an extended period, first mow at a high cutting height, then mow again 2 days later at a lower height setting. This machine has a sensor that turns off the mower deck when the engine overheats. When the engine overheats, the audible alarm and light alarm turns on along with the mower deck turning off.
After Operation After Operation Safety General Safety • Clean grass and debris from the cutting units, mufflers, and engine compartment to help prevent fires. Clean up oil or fuel spills. • Shut off the fuel before storing or transporting the machine. • Disengage the drive to the attachment whenever g008948 you are transporting or not using the machine. Figure 36 • Use full-width ramps for loading the machine into 1. ON position a trailer or truck. 2.
Changing to Machine Operation Loading the Machine Rotate the bypass valves clockwise 1 turn to operate machine (Figure 37). Use extreme caution when loading or the unloading machine onto a trailer or a truck. Use a full-width ramp that is wider than the machine for this procedure. Back the machine up the ramp and drive it forward down the ramp (Figure 38). Note: Do not over-tighten the bypass valves. Important: The machine does not drive unless bypass valves are turned in. g028043 Figure 38 1.
g027996 Figure 39 1. Full-width ramp in stowed position 4. Ramp is at least 4 times as long as the height of the trailer or truck bed to the ground 2. Side view of full-width ramp in loading position 5. H= height of the trailer or truck bed to the ground 3. Not greater than 15 degrees 6.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Check the engine cooling system level. • Adjust the mower belt tension (for 72-inch mowers only). • Check the hydraulic fluid. After the first 25 hours • Change the hydraulic filter. After the first 50 hours • Replace the engine oil. • Change the engine-oil filter. • Change the engine oil. After the first 100 hours • Check the wheel-hub slotted nut. • Change the gearbox oil.
Maintenance Service Interval Every 500 hours Yearly Maintenance Procedure • • • • Check the wheel-hub slotted nut. Adjust the caster-pivot bearing. Adjust the electric clutch. Change the hydraulic filter and hydraulic fluid when using Toro® HYPR-OIL™ 500 hydraulic fluid. • • • • Grease the front caster pivots (more often in dirty or dusty conditions). Lubricate the caster-wheel hubs. Change the gearbox oil. Change the engine coolant.
Lubrication Adding Grease Lubricate the machine when shown on the Check Service Reference Aid decal (Figure 40). Grease more frequently when operating conditions are extremely dusty or sandy. Lubricate the grease fittings as shown on the Check Service Reference Aid decal (Figure 40). Grease Type: No. 2 lithium or molydenum grease Greasing the Machine 1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 2.
Greasing the Mower Deck and Belt Idlers Service Interval: Every 25 hours—Grease the mower deck and spindles. Grease with No. 2 lithium or molybdenum grease. Important: Make sure that the cutting-unit spindles are full of grease weekly. 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage 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.
Lubricating the Caster-Wheel Hubs 12. With the open end of the wheel facing up, fill the area inside the wheel around the axle full of general-purpose grease. Service Interval: Yearly 13. Insert the second bearing and new seal into the wheel. 14. Apply a thread-locking adhesive to the second spacer nut, and thread it onto the axle with the wrench flats facing outward. 15. Torque the nut to 8 to 9 N∙m (75 to 80 in-lb), loosen, then torque to 2 to 3 N∙m (20 to 25 in-lb). 1.
Engine Maintenance WARNING Contact with hot surfaces may cause personal injury. Keep your hands, feet, face, clothing, and other body parts away the muffler and other hot surfaces. Engine Safety Shut off the engine before checking the oil or adding oil to the crankcase. Servicing the Air Cleaner Note: Check the filters more frequently if operating conditions are extremely dusty or sandy.
Preparing to Service the Engine Oil Important: The fasteners for the front engine panel are designed to remain on the machine after cover removal. Loosen all of the fasteners a few turns so that the panel is loose but still attached, then go back and loosen them until the panel comes free. This prevents you from accidentally stripping the bolts free of the retainers. Tilt the seat forward, loosen the bolts holding the front engine panel and remove it (Figure 48). g001048 Figure 46 1. Air-filter body 3.
Checking the Engine-Oil Level Important: Add the oil very slowly and do not block the opening of the filler hole (Figure 40). If you add oil too fast or block the hole, the oil could back up and foul the air intakes, causing engine damage. Service Interval: Before each use or daily Note: Check the oil when the engine is cold. 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 2.
Changing the Engine-Oil Filter Service Interval: After the first 50 hours Every 200 hours 1. Drain the oil from the engine; refer to Draining the Engine Oil (page 43). 2. Change the engine-oil filter (Figure 52). g032646 g032649 g032642 Figure 51 Note: Dispose of the used oil at a recycling center. g032644 Figure 52 3. 44 Add oil; refer to Adding Engine Oil (page 45).
Changing the Engine Oil Adding Engine Oil 1. Service Interval: After the first 50 hours Every 100 hours 1. Tilt the seat forward and remove the front engine panel (Figure 54). Start the engine and let it run for 5 minutes. Note: This warms the oil so it drains better. 2. Park the machine on a level surface. 3. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 4.
Fuel System Maintenance Servicing the Fuel Filter and Water Seperator Service Interval: Every 40 hours—Drain the water separator. Every 400 hours/Yearly (whichever comes first)—Replace the fuel filter (more often in dirty or dusty conditions). Draining the Water Separator g001163 Figure 56 1. Engine oil 2. Funnel and hose Important: Add the oil very slowly and do not block the opening of the filler hole (Figure 57).
Changing the Fuel Filter Servicing the Fuel Tank Never install a dirty fuel filter if it is removed from the fuel line. Do not attempt to drain the fuel tank. Ensure that an Authorized Service Dealer drains the fuel tank and services any components of the fuel system. 1. Allow the machine to cool down. 2. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 3.
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. Electrical System Safety • Disconnect the battery before repairing the • • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. machine. Disconnect the negative terminal first and the positive last. Connect the positive terminal first and the negative last.
Installing the Battery Note: Do not run the machine with the battery disconnected, electrical damage may occur. Note: Position the battery in the tray with the terminal posts opposite from the hydraulic tank. g000960 Figure 62 1. Positive battery post 3. Red (+) charger lead 2. Negative battery post 4. Black (-) charger lead Servicing the Fuses The electrical system is protected by fuses. It requires no maintenance, however, if a fuse blows check component/circuit for malfunction or short.
Drive System Maintenance Adjusting the Tracking The machine has a knob for adjusting the tracking located under the seat. Important: Adjust the handle neutral and hydraulic pump neutral before adjusting the tracking; refer to Adjusting the Control Handle Neutral Position (page 61) and Setting the Hydraulic Pump Neutral Position (page 66). 1. Push both control levers forward the same distance. 2. Check if the machine pulls to 1 side. If it does, shut off the machine and engage the parking brake. 3.
g001055 Figure 65 Checking the Wheel-Hub Slotted Nut Service Interval: After the first 100 hours—Check the wheel-hub slotted nut. Every 500 hours—Check the wheel-hub slotted nut. g001070 Figure 64 1. Tracking knob 4. Turn this way to track right. 2. Hydraulic tank 5. Turn this way to track left. Torque the slottled nut to 286 to 352 N∙m (211 to 260 ft-lb). Note: Do not use anti-seize compound on the wheel 3. Hydraulic pumps hub.
g001297 Figure 66 1. Spring washers 3. Dust cap 2. Locknut g001156 Figure 67 Servicing the Gearbox 1. Gearbox 3. Pulley 2. Side plug 4. Rear plug Checking the Gearbox-Oil Level Service Interval: Every 100 hours Changing the Gearbox Oil Use SAE 75W-90 synthetic gear lube. Service Interval: After the first 100 hours 1. Park the machine on a level surface. 2. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 3.
Adjusting the Electric Clutch Service Interval: Every 500 hours The clutch is adjustable to ensure proper engagement and proper braking. 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage 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. Unlatch the seat and tip it forward. 4. Loosen the front engine panel knobs and remove the panel. 5.
16. Install the rubber clutch strap to the mower frame with the 2 previously removed bolts and nuts (Figure 69). 17. Pull up on the spring-loaded idler for the PTO-drive belt and install it onto the clutch pulley (Figure 68). 18. Plug in the electric connection for the clutch (Figure 69). 19. Install the front engine panel and tighten the knobs. 20. Lower down the seat.
1. Position the machine on a level surface, shut off the engine, and engage the parking brake. 2. Unlatch the seat and tilt the seat up. 3. With the engine cool, check the overflow bottle level. The fluid needs to be up to the bump on the outside of the overflow bottle (Figure 71). 4. If the coolant level is low, add a 50/50 mix of extended life antifreeze/Dex-Cool® and water to the overflow bottle (Figure 71). 5.
Brake Maintenance Belt Maintenance Adjusting the Parking Brake Inspecting the Belts Service Interval: Every 100 hours Check the belts for squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks and cracks are signs of a worn mower belt. Replace the mower belt if any of these conditions are evident. Service Interval: Every 25 hours Every 200 hours 1. Engage the parking brake. 2. Measure the length of the spring (Figure 73).
g006535 Figure 76 g006479 Figure 75 1. Mower belt 5. Gearbox pulley 2. Mower spindle pulley 6. Idler spring 3. Spring-loaded idler pulley 7. Idler plate (for 72-inch mowers only) 1. Belt cover 2. Latch 3. Insert slot into the tab 4. Belt guide at a 45 degree angle Adjusting the Mower Belt Tension 9. Install the belt guide on the spring-loaded idler at a 45 degree angle as shown in Figure 75 and Figure 77. Torque the bolt to 37 to 45 N∙m (27 to 33 ft-lb). For 72-inch Mowers Only 10.
8. Replacing the PTO-Drive Belt While holding the belt tension and spring length, tighten the idler plate bolts that secure the idler plate (Figure 77). Service Interval: Every 50 hours—Check the PTO-drive belt. 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage 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.
8. Intall the rubber clutch stop. 9. Install the spring to the idler arm (Figure 79). g007177 Figure 80 g007176 4. Clutch 5. Rubber clutch stop 3. Spring-loaded idler pulley 6. PTO-drive belt 3. Spring 2. Pump drive belt 4. Spring-loaded idler pulley Replacing and Tensioning the Alternator Belt Figure 79 1. Gearbox 2. Spring 1. Clutch Replacing the Alternator Belt Service Interval: Every 50 hours—Check the alternator belt.
g001295 Figure 81 1. Oil cooler shield 3. Engine straps 2. Bolts 5. Remove the 4 bolts holding the oil cooler and position the oil cooler to the side (Figure 82). 6. Remove the 2 bolts holding the fan and fan plate to the machine (Figure 82). g001296 Figure 82 1. Oil cooler 3. Fan plate 2. Fan 4. Alternator belt 7. Loosen the bottom bolt and remove the upper bolt holding the alternator and cover (Figure 83). 8.
Tensioning the Alternator Belt 1. Place a handle between the alternator and cylinder block. Controls System Maintenance 2. Adjust the alternator to the outside until there is 7 to 9 mm (1/4 to 11/32 inch) deflection in the belt between the engine and the alternator pulleys with 10 kg (22.1 lb) of force (Figure 83). Adjusting the Control Handle Neutral Position 3. Tighten the alternator bolts. 4. Check the deflection in the belt again and adjust the belt if needed.
9. Hydraulic System Maintenance Apply slight rearward pressure on the motion-control lever, turn the head of the adjustment bolt in the appropriate direction until the control lever is centered in the NEUTRAL-LOCK position (Figure 85). Hydraulic System Safety Note: Keeping rearward pressure on the lever keeps the pin at the end of the slot and allow the adjustment bolt to move the lever to the appropriate position. 10. Tighten the nut and jam nut (Figure 85). 11.
5. 6. 7. Remove the cap from the filler neck and look inside to check if there is fluid in the reservoir (Figure 86). WARNING Hydraulic fluid escaping under pressure can penetrate skin and cause injury. If there is no fluid, add fluid to the reservoir until it reaches the cold level of the baffle. • If hydraulic fluid is injected into the skin it must be surgically removed within a few hours by a doctor familiar with this type of injury. Gangrene may result if this is not done.
Replacing the Hydraulic Filter and Fluid Service Interval: After the first 25 hours Every 250 hours—Change the hydraulic filter and hydraulic fluid when using Mobil® 1 fluid. Every 500 hours—Change the hydraulic filter and hydraulic fluid when using Toro® HYPR-OIL™ 500 hydraulic fluid. Use summer filter above 0°C (32°F) g001313 Figure 88 Use winter filter below 0°C (32°F) 1. 2.
Bleeding the Hydraulic System The traction system is self bleeding, however, it may be necessary to bleed the system if fluid is changed or after work is performed on the system. 1. Raise the rear of the machine so that the wheels are off the ground and support with jack stands. 2. Start the engine and run at low idle speed and engage the lever and traction on 1 side and spin the wheel by hand. 3.
Setting the Hydraulic Pump Neutral Position WARNING Hydraulic fluid escaping under pressure can penetrate skin and cause injury. Note: Adjust the handle neutral first. That needs to be correct before the following adjustment can be made. • If hydraulic fluid is injected into the skin it must be surgically removed within a few hours by a doctor familiar with this type of injury. Gangrene may result if this is not done. This adjustment must be made with drive wheels turning.
4. Open the throttle to Setting the Left Hydraulic Pump Neutral Position FAST . Note: Make sure that the wheel remains stopped or slightly creeps in reverse; adjust if necessary. 1. Loosen the locknuts at the ball joints on the pump control rod (Figure 91). 2. Start the engine, open the throttle 1/2 way and disengage parking brake; refer to Starting and Shutting Off the Engine (page 25). Note: The motion-control lever must be in neutral while making any adjustments.
Mower Deck Maintenance WARNING The electrical system does not perform proper safety shut off with the jumper wire installed. Leveling the Mower at 3 Positions • Remove the jumper wire from the wire harness connector and plug the connector into the seat switch when you complete the adjustment. Important: There are only 3 measuring positions needed to level the mower. • Never operate the machine with the jumper installed and the seat switch bypassed. 7. 8. 9. 10.
Leveling the Mower Side-to-Side 1. Position the right blade side-to-side (Figure 92). g001040 Figure 93 g006888 Figure 92 1. Measure here from blade to hard surface 1. Rear chain 5. Adjustment bolt 2. Rear-support arm 6. Front swivel 3. Bolt 7. Front-support arm 4. Jam nut 2. Measure at B and C 8. 2. Measure the right blade at the B location, from a level surface to the cutting edge of the blade tip (Figure 92). 3. Record this measurement.
Adjusting the Compression Spring 1. Raise the mower lift lever to the transport position. 2. Check the distance between the 2 large washers, it needs to be 28.2 cm (11-1/8 inches) for 52-inch mower decks, 26.7 cm (10-1/2 inches) for 60-inch mower decks, or 29.2 cm (11-1/2 inches) for 72-inch mower decks (Figure 95). g001041 Figure 94 1. Measure here from blade to hard surface 2. Measure at A and B 2.
Servicing the Cutting Blades Maintain sharp blades throughout the cutting season because sharp blades cut cleanly without tearing or shredding the grass blades. Tearing and shredding turns grass brown at the edges, which slows growth and increases the chance of disease. g006530 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.
Sharpening the Blades Note: The difference between the dimensions obtained in steps 4 and 6 must not exceed 3 mm (1/8 inch). 1. Note: If this dimension exceeds 3 mm (1/8 inch), the blade is bent and must be replaced. Use a file to sharpen the cutting edge at both ends of the blade (Figure 99). Note: Maintain the original angle. Note: The blade retains its balance if the same amount of material is removed from both cutting edges.
Installing the Blades 1. Replacing the Grass Deflector Install the blade onto the spindle shaft (Figure 101). Important: The curved part of the blade WARNING must point upward toward the inside of the mower to ensure proper cutting. 2. An uncovered discharge opening could allow the lawn mower to throw objects toward you or bystanders, resulting in serious injury. Also, contact with the blade could occur. Install the spring disk and blade bolt (Figure 101).
Cleaning Cleaning under the Mower Service Interval: Before each use or daily Remove the grass buildup under the mower daily. 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage 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. Raise the mower to the transport position. g002519 Figure 102 1. Bolt 5. Spring installed 2. Spacer 6.
Storage Important: Do not store stabilizer/conditioned fuel over 90 days. Cleaning and Storage 1. 2. Disengage the blade-control switch (PTO), engage the parking brake, turn the ignition key to the OFF position, and remove the key. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine and hydraulic system. Clean dirt and chaff from the outside of the engine cylinder head fins and blower housing.
Troubleshooting Problem The starter does not crank. The engine does not start, starts hard, or fails to keep running Possible Cause 1. The blade-control switch (PTO) is engaged. 1. Move the blade-control switch (PTO) to disengaged. 2. The parking brake is not engaged. 3. The drive levers are not in the NEUTRAL-LOCK position. 4. The operator is not seated. 5. The battery is dead. 6. The electrical connections are corroded or loose. 7. The fuse is blown. 8. The relay or switch is broken. 2.
Problem There is abnormal vibration. Mowing is resulting in uneven cutting height. Possible Cause 1. The cutting blade(s) is/are bent or unbalanced. 1. Install new cutting blade(s). 2. The blade mounting bolt is loose. 3. The engine mounting bolts are loose. 4. The engine pulley, idler pulley, or blade pulley is loose. 5. The engine pulley is damaged. 6. The blade spindle is bent. 7. The motor mount is loose or worn. 2. Tighten the blade mounting bolt. 3. Tighten the engine mounting bolts. 4.
Schematics g012068 Wire Diagram (Rev.
Notes:
The Toro Warranty Landscape Contractor Equipment (LCE) A Limited Warranty (see warranty periods below) Riding Product Conditions and Products Covered 3. If for any reason you are dissatisfied with the Service Dealer’s analysis or with the assistance provided, contact us at: The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair the Toro Products listed below if defective in materials or workmanship.
