Form No. 3445-188 Rev B Z Master® Professional 7500-D Series Riding Mower With 96in TURBO FORCE® Rear Discharge Mower Model No. 72098—Serial No. 400000000 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.
Introduction This manual uses 2 words to highlight information. Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention. This rotary-blade, riding lawn mower is intended to be used by professional, hired operators. It is designed primarily for cutting grass on well-maintained lawns on residential or commercial properties. Using this product for purposes other than its intended use could prove dangerous to you and bystanders.
Contents Draining the Fuel Filter/Water Separator ........... 42 Replacing the Water Separator ........................ 42 Checking the Fuel Lines and Connections.................................................. 42 Electrical System Maintenance ........................... 43 Electrical System Safety ................................... 43 Servicing the Battery......................................... 43 Servicing the Fuses .......................................... 45 Drive System Maintenance .............
Safety This machine has been designed in accordance with ANSI standard B71.4-2017. 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 or death. • Read and understand the contents of this Operator’s Manual before starting the engine. • Keep bystanders and children away. • Do not allow children or untrained people to operate or service the machine.
Slope Indicator g011841 Figure 3 You may copy this page for personal use. 1. The maximum slope you can 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. decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery. 1. Explosion hazard 6. Keep bystanders 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.
decal112-9028 112-9028 1. Warning—stay away from moving parts; keep all guards and shields in place. decal116-5988 116-5988 1. Parking brake—engaged 2. Parking brake—disengaged 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.
decal117-3276 117-3276 1. Engine coolant under pressure 3. Warning—do not touch the hot surface. 2. Explosion hazard—read the Operator's Manual. 4. Warning—read the Operator's Manual. decal126-8383 126-8383 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.
decal126-9127 126-9127 1. Belt routing decal126-8760 126-8760 For Models with 244 cm (96-inch) Decks 1. Height of cut 2. Range adjustment decal126-9351 126-9351 1. Chassis (15 A) 3. Main (25 A) 2. Accessory (15 A) 4. Power point (15 A) decal126-9947 126-9947 1. Read and understand the Operator’s Manual before servicing the machine. 2. Time interval 7. Check the oil level in the jackshaft. 8. Grease the deck drive PTO; refer to the Operator’s Manual for further instructions. 9.
decal135-0328 135-0328 1. Torque the wheel lug nuts to 129 N∙m (95 ft-lb). 2. Read and understand the Operator's Manual before performing any maintenance; check the torque after the first 100 hours, then every 500 hours, thereafter. decal135-0398 135-0398 1. Engine—Off 4. Press the top of the button to lower the center deck and outer wing decks. 2. Engine—On 5. Press the bottom of the button to raise the center deck and outer wing decks. 3.
decal135-0679 135-0679 decal135-0664 135-0664 1. Thrown object hazard—keep bystanders away. 1. Rotating driveline hazard/entanglement hazard; belt—stay away from moving parts; keep all guards and shields in place. 2. Cutting/dismemberment hazard of hands and feet—stay away from moving parts; keep all guards and shields in place. decal135-2837 135-2837 1. Read the Operator’s Manual for more information; Use red Toro wet-clutch transmission fluid; do not use green hydraulic fluid.
Product Overview g350919 Figure 4 1. Center deck height-of-cut pin 5. Motion-control lever 9. Audible alarm 2. Wing deck height-of-cut pin 6. Display monitor 10. Power point 14. Center deck 3. Wing deck 7. Roll bar 11. Fuel-tank cap 15. Center deck caster wheel 4. Parking-brake lever 8. Hood/hood screens 12. Skid 16. Anti-scalp roller 13 13.
Controls Horizon Display Monitor Become familiar with all the controls before you start the engine and operate the machine. Refer to the Software Guide for detailed information explaining the operator interface that allows you to access information, reset counters, modify system settings, and troubleshoot the equipment. Control Panel g225792 Figure 5 1. Horizon display monitor 3. Key switch 2. Deck lift and wing deck fold/unfold switch 4.
Blade-Control Switch (Power Takeoff) Alarm If an error occurs, an error message displays, the LED turns red, and the alarm sounds audibly as follows: The blade-control switch (PTO) engages and disengages power to the mower blades (Figure 5). • A fast chirp sound indicates critical errors. • A slow chirping sound indicates less critical errors, The LCD indicator appears on the information screen when the PTO switch is disengaged. such as required maintenance or service intervals.
Specifications Cutting width Overall width Overall length Overall height Tread width (center-to-center of tires, widthwise) Operation 243.8 cm (96 inches) Working width—257.3 cm (101-5/16 inches) Note: Determine the left and right sides of the machine from the normal operating position. Transport width set at the 3 inches height of cut—184.2 cm (72-1/2 inches) Before Operation 247.1 cm (97-1/4 inches) Roll bar up—182.4 cm (71-13/16 inches) Before Operation Safety Roll bar down—129.
Adding Fuel Fuel Safety • Fuel is extremely flammable and highly explosive. • • • • • • • • • A fire or explosion from fuel can burn you and others and can damage property. – To prevent a static charge from igniting the fuel, place the container and/or machine directly on the ground before filling, not in a vehicle or on an object. – Fill the fuel tank outdoors on level ground, in an open area, and when the engine is cold. Wipe up any fuel that spills.
5. Using the Rollover Protection System (ROPS) Fill the fuel tank to the bottom of the filler neck (Figure 7). Note: Do not fill the fuel tank completely full. The empty space in the tank allows the fuel to expand. WARNING To avoid injury or death from rollover, keep the roll bar in the fully raised, locked position and use the seat belt. Ensure that the seat is secured to the machine. WARNING There is no rollover protection when the roll bar is in the down position.
Using the Safety-Interlock System WARNING If the safety-interlock switches are disconnected or damaged, the machine could operate unexpectedly, causing personal injury. • Do not tamper with the interlock switches. • Check the operation of the interlock switches daily and replace any damaged switches before operating the machine. g225804 Figure 8 1. Upper part of the roll bar 4. Rotate the knob out 90° to hold it in the unlatched position. 2. Knob in the latched position 5.
Unlatching the Seat operate as described below, have an Authorized Service Dealer repair the safety system immediately. 1. Sit on the seat, engage the parking brake, and move the blade-control switch (PTO) to the ON position. Try starting the engine; the engine should not start. 2. Sit on the seat, engage the parking brake, and move the blade-control switch (PTO) to the OFF position. Move either motion-control lever out of the NEUTRAL-LOCK position. Try starting the engine; the engine should not start.
During Operation • Operate the engine only in well-ventilated areas. During Operation Safety • Never leave a running machine unattended. • Attach towed equipment to the machine only at Exhaust gases contain carbon monoxide, which is lethal if inhaled. the hitch point. General Safety • Do not operate the machine unless all guards • The owner/operator can prevent and is responsible and safety devices, such as the deflectors, are in place and functioning properly.
off and be seriously injured or prevent you from safely operating the machine. Children who have been given rides in the past could appear in the operating area without warning and be run over or backed over by the machine. Changes in the terrain, such as moisture, can quickly affect the operation of the machine on a slope. • Identify hazards at the base of the slope. Do not operate the machine near drop-offs, ditches, embankments, water, or other hazards.
Disengaging the Parking Brake g221745 g227610 Figure 15 1. Safe Zone—use the machine here on slopes less than 15° or flat areas. 2. Danger Zone—use a walk-behind mower and/or a hand trimmer on slopes greater than 15° and near drop-offs or water. Figure 17 4. W = Width of the machine 5. Keep a safe distance (twice the width of the machine) between the machine and any hazard. 3. Water Operating the Parking Brake Always engage the parking brake when you stop the machine or leave it unattended.
Lowering the Wing Decks Operating the Mower Blade-Control Switch (PTO) Important: You must unfold the wing decks before you can engage the PTO. 1. The blade-control switch (PTO) starts and stops the mower blades and any powered attachments. Remove the clevis pin and hairpin cotter that secures each wing in the upright position and place them in the storage position (Figure 18).
Starting the Engine Shutting Off the Engine Important: Do not engage the starter for more CAUTION 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. Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. Note: You may need multiple attempts to start the Always remove the key and engage the parking brake when leaving the machine unattended.
Raising and Locking the Wing Decks Using the Motion-Control Levers 1. Ensure that all persons are clear of the deck wings. 2. Press and hold the bottom of the deck-lift switch; the center deck lowers first, then the outer wings. 3. Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. 4. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 5.
Driving the Machine The drive wheels turn independently, powered by hydraulic motors on each axle. You can turn 1 side in reverse while you turn the other forward, causing the machine to spin rather than turn. This greatly improves the machine maneuverability but may require some time for you to adapt to how it moves. 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.
Adjusting the Height of Cut The cutting height of the mower deck can be adjusted from 2.54 cm to 14 cm (1 to 5-1/2 inches) in 6.4 mm (1/4 inch) increments. 1. 6. E. Lock the cam lock. F. Repeat for the other wing deck. If you desire additional height-of-cut range, adjust the front and rear gauge wheels on the wing deck as follows: Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. A. Remove the mounting hardware from the gauge wheel. 2.
Adjusting the Anti-Scalp Rollers For maximum deck flotation, install the rollers 1 hole position lower. Rollers should maintain a 6 mm (1/4 inch) clearance to the ground. Do not adjust the rollers to support the deck. 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. g243016 Figure 30 3.
Adjusting the Skids Operating Tips Mount the skids in the lower position when operating at heights of cut greater than 51 mm (2 inches) and in a higher position when operating at heights of cut lower than 51 mm (2 inches). Using the Fast Throttle Setting For best mowing and maximum air circulation, operate the engine at the FAST position. Air is required to thoroughly cut grass clippings, so do not set the height-of-cut so low as to totally surround the mower deck in uncut grass.
After Operation drop onto your lawn. To avoid this, move onto a previously cut area with the blades engaged or you can disengage the mower deck while moving forward. After Operation Safety Keeping the Underside of the Mower Deck Clean General Safety Clean clippings and dirt from the underside of the mower deck after each use. If grass and dirt build up inside the mower deck, cutting quality will eventually become unsatisfactory.
Using the Drive-Wheel Release Valves Selecting a Trailer Use the drive-wheel release valves to release the hydrostatic drive system, which allows you to push the machine without the running the engine. Loading a machine onto a trailer or truck increases the possibility of tip-over and could cause serious injury or death (Figure 34). Rotate each bypass valve counterclockwise 1 turn to release; rotate each bypass valve clockwise to reset the system (Figure 33).
1. If using a trailer, connect it to the towing vehicle and connect the safety chains. 2. If applicable, connect the trailer brakes and lights. 3. Lower the ramp, ensuring that the angle between the ramp and the ground does not exceed 15 degrees (Figure 34). 4. Back the machine up the ramp (Figure 35). g028043 Figure 35 1. Back the machine up the ramp. 2. Drive the machine forward down the ramp. 5. Shut off the engine, remove the key, and engage the parking brake. 6.
Maintenance • Check the parking brake operation frequently. Maintenance Safety • Never tamper with safety devices. Check their • If you leave the key in the switch, someone could • Clean grass and debris from the cutting unit, Adjust and service it as required. proper operation regularly. accidently start the engine and seriously injure you or other bystanders. Remove the key from the switch before you perform any maintenance. muffler, drives, and engine compartment to prevent fires.
Maintenance Service Interval Maintenance Procedure • • • • • Every 400 hours • • • • • Grease the deck-idler pivots. Grease the caster-wheel spindles. Grease the caster pivots (more often in dirty or dusty conditions). Service the air cleaner (More frequently in extremely dusty or dirty conditions). Change the engine oil and filter if using Toro Premium Engine Oil (API classification CK-4 or higher) (more often in dirty or dusty conditions).
Lubricating the Grease Fittings Service Interval: Yearly—Grease the front caster pivots. Yearly—Grease the idler pivot. Yearly—Grease the deck drive PTO. Every 400 hours—Grease the deck-idler pivots. Every 400 hours—Grease the caster-wheel spindles. Note: See chart for service intervals. Refer to the following chart for fitting locations and lubrication schedule.
Lubricating the Drive U-Joints and Splined Slip Joint Greasing the Caster Pivots Service Interval: Every 400 hours/Yearly (whichever comes first) (more often in dirty or dusty conditions). Yearly—Repack the caster-wheel bearings (more often in dirty or dusty conditions). Service Interval: Every 50 hours—Grease the drive U-joints and splined slip joint. Note: For easier access to the drive U-joints and 1.
Greasing the Caster-Wheel Hubs 13. 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 14. Insert the second bearing and new seal into the wheel. 1. Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. 15. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.
Engine Maintenance Servicing the Air Cleaner Note: If the foam gasket in the cover is damaged, replace it. Engine Safety Important: Avoid using high-pressure air, which could force dirt through the filter into the intake tract. • Keep your hands, feet, face, clothing, and other body parts away from the muffler and other hot surfaces. Allow engine components to cool before performing maintenance. Important: Do not clean the used filter to avoid damaging the filter media.
Servicing the Engine Oil Service Interval: Before each use or daily 3. Open the hood. 4. Check the engine-oil level as shown in Figure 42. After the first 200 hours—Change the engine oil and filter. Every 200 hours—Change the engine oil and filter if not using Toro Premium Engine Oil, but any oil meeting API classification CJ-4 or higher or as stated in Engine-Oil Specifications.
Changing the Engine Oil and Filter If possible, run the engine just before changing the oil because warm oil flows better and carries more contaminants than cold oil. 1. Park the machine on a level surface, disengage the blade-control switch (PTO), 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. Open the hood. 4. Change the engine oil as shown in Figure 43. g027477 Figure 44 g031623 Figure 43 6.
Replacing the Water Separator Fuel System Maintenance Service Interval: Every 400 hours—Replace the fuel-filter canister for the water separator (more often in dirty and dusty conditions). WARNING Fuel-system components are under high pressure. The use of improper components can result in system failure, fuel leakage, and possible explosion. Use only approved fuel lines and fuel filters. Draining the Fuel Filter/Water Separator Service Interval: Every 50 hours—Drain the fuel filter/water separator. 1.
Electrical System Maintenance Electrical System Safety • Disconnect the battery before repairing the machine. Disconnect the negative terminal first and the positive last. Connect the positive terminal first and the 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.
Charging the Battery Jump-Starting the Machine 1. WARNING Charging the battery produces gasses that can explode. You must clean it off prior to jump-starting. Clean and tighten connections as necessary. Never smoke near the battery and keep sparks and flames away from battery. CAUTION Corrosion or loose connections can cause unwanted electrical voltage spikes at anytime during the jump-starting procedure. Important: Always keep the battery fully charged (1.265 specific gravity).
3. Servicing the Fuses Connect the positive (+) cable to the positive (+) terminal of the discharged battery that is wired to the starter or solenoid (Figure 48). The electrical system is protected by fuses. It requires no maintenance, however, if a fuse blows check component/circuit for malfunction or short. 1. Unlatch the engine hood and raise the engine hood to gain access to the fuse block. 2. To replace the fuses, pull out on the fuse to remove it. 3. Install a new fuse (Figure 49).
Drive System Maintenance 9. Align the levers in the front-to-rear position by bringing the levers together to the NEUTRAL position, and slide them until they are aligned, then tighten the bolts (Figure 51). Checking the Seat Belt Service Interval: Before each use or daily Inspect the seat belt for wear, cuts, and proper operation of the retractor and buckle. Replace the seat belt if it is damaged. Adjusting the Tracking 1. 2. 3. 4. 5. 6. 7. 8. Disengage the blade-control switch (PTO).
Adjusting the Caster-Pivot Bearing Checking the Tire Pressure Service Interval: Every 50 hours/Monthly (whichever comes first) Service Interval: Every 500 hours/Yearly (whichever comes first) Rear tire air pressure specification: 124 kPa (18 psi). 1. Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. 2. Low tire pressure decreases machine side-hill stability. This could cause a rollover, which may result in personal injury or death.
Changing the Gearbox Oil Servicing the Gearbox Service Interval: After the first 200 hours Checking the Gearbox-Oil Level Every 400 hours Service Interval: Every 50 hours If the oil becomes contaminated, contact your Toro Distributor because the system must be flushed. Contaminated oil looks milky or black when compared to clean oil. Use SAE 75W-90 synthetic gear lube. 1. Park the machine on a level surface and engage the parking brake. 2. Lower the mower deck to the 25 mm (1 inch) height of cut.
Cooling System Maintenance Cooling System Safety • Swallowing engine coolant can cause poisoning; keep out of reach from children and pets. • Discharge of hot, pressurized coolant or touching a hot radiator and surrounding parts can cause severe burns. – Always allow the engine to cool at least 15 minutes before removing the radiator cap. g227787 Figure 56 – Use a rag when opening the radiator cap, and open the cap slowly to allow steam to escape. 1. Expansion-tank cap 3. Add line 2.
Note: If debris remains, repeat until clean. 9. 7. Lower the hood. 8. Start the engine to ensure that the fan functions properly. As air purges from the engine block and the coolant level drops, add additional coolant to the radiator. Changing the Engine Coolant 10. Park the machine on a level surface, disengage the blade-control switch, 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.
Brake Maintenance Adjusting the Parking Brake Service Interval: After the first 100 hours Every 400 hours Check to ensure that parking brake is adjusted properly. Follow this procedure also whenever you have removed or replaced a brake component. 1. Park the machine on a level surface, disengage the blade-control switch, 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.
13. Belt Maintenance Repeat steps 10 through 12 until a visible gap is achieved and the wheel hub rotates freely. Repeat this procedure for the other side. Note: The brake should fully disengage when Inspecting the Belts the brake is in the released position. Service Interval: Every 50 hours 14. Rotate the drive wheel release handle to the operating position; refer to Using the Drive-Wheel Release Valves (page 32). 15.
g243945 Figure 60 1. Square hole in the idler arm for the ratchet 2. Wing deck mower belt 9. g243947 Figure 61 3. Spring Install the new belt around the mower deck pulleys. 10. Install the belt covers and floorboard. 11. Repeat this procedure for the other wing deck belt. Replacing the Center 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 mower belt.
Checking the Alternator-Belt Tension Controls System Maintenance Service Interval: Every 100 hours 1. Apply 44 N (10 lb) of force to the alternator belt, midway between the pulleys. 2. If the deflection is not 10 mm (3/8 inch), loosen the alternator mounting bolts (Figure 62). Adjusting the Control-Handle Position There are 2 height positions for the control levers—high and low. Remove the bolts to adjust the height for the operator. 1.
4. Raise the rear of the machine up and support it with jack stands (or equivalent support) just high enough to allow the drive wheels to turn freely. 5. Remove the electrical connection from the seat safety switch, located under the bottom cushion of the seat. Note: The switch is a part of the seat assembly. 6. Temporarily install a jumper wire across the terminals in the connector of the main wire harness. 7. Start the engine, run it at full throttle, and disengage the parking brake.
Hydraulic System Maintenance Note: The wheels should stop turning or slightly creep in reverse. 12. Shut off the machine. 13. Remove the jumper wire from the wire harness and plug the connector into the seat switch. 14. Remove the jack stands. 15. Raise the deck and install the height-of-cut pin. 16. Check and ensure that the machine does not creep in neutral with the parking brake disengaged.
2. Move the motion-control levers to the NEUTRAL-LOCK position and start the engine. 8. Note: Run the engine at the lowest possible 9. Replace the dipstick and thread the fill cap finger-tight onto the filler neck. Check all hoses and fittings for leaks. rpm to purge any air in the system. Changing the Hydraulic Fluid and Filter Important: Do not engage the PTO. 3. Raise the deck to extend the lift cylinders, shut off the engine, and remove the key. 4.
6. Clean the area around the hydraulic-fluid filter and remove the filter (Figure 69). 7. Install a new hydraulic-fluid filter and turn the filter clockwise until the rubber seal contacts the filter adapter, then tighten the filter an additional 2/3 to 3/4 turn. 8. 9. Mower Deck Maintenance Blade Safety Install the 4 drain plugs. • Inspect the blades periodically for wear or damage. Note: The wheel motor drain plugs are magnetic; wipe them clean before installing.
Note: If this dimension exceeds 3 mm (1/8 inch), the blade is bent and must be replaced. DANGER A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders. • Always replace bent or damaged blade with a new blade. g006530 Figure 71 1. Cutting edge 3. Wear/slot forming 2. Curved area 4. Crack • Never file or create sharp notches in the edges or surfaces of blade. Removing the Blades Checking for Bent Blades 1. 2.
Sharpening the Blades 1. 2. Use a file to sharpen the cutting edge at both ends of the blade (Figure 74). Install the bushing/blade assembly into the spindle shaft (Figure 77). Note: Maintain the original angle. Note: The blade retains its balance if the same amount of material is removed from both cutting edges. g000276 Figure 74 1. Sharpen at original angle. 2. Check the balance of the blade by putting it on a blade balancer (Figure 75).
Hold the switch down until both wings are completely folded. 2. Position the mower to the 102 mm (4 inches) height-of-cut position. 3. Unlock the left and right wing deck cam locks (Figure 78). 4. Remove and retain the wing deck height-of-cut lanyard (Figure 78). g239055 Figure 78 1. Cam lock 3. Lanyard g239092 2. Clevis pin Figure 79 1. 108 mm (4-1/4 inches) 5. Insert the height-of-cut pin into the 102 mm (4 inches) location and install the lanyard. 6. Lock the each wing deck cam lock. 4.
height of cut with the desired rake, you can utilize the single-point adjustment to gain more adjustment. 6. To adjust the single-point system, first loosen the front and rear height-of-cut plate mounting bolts (Figure 80) Fine-tune the rear adjusters as required. You can adjust the single-point adjustment to gain more adjustment. g232012 Figure 81 1. Single-point height adjustment bolt 2. Front height-of-cut plate mounting bolt 3. Rear height-of-cut plate mounting bolt 8.
g240665 Figure 82 Right wing deck shown 1. Rear hanger-mounting nuts 2. Rear height-adjustment hardware location 3. Single-point rear adjustment 4. Front hanger-mounting nuts 5. Front height-adjustment hardware location • If the deck is too low, tighten the front height-adjustment bolt (Figure 82) by rotating the bottom nut clockwise. • If the deck is too high, loosen the front height-adjustment bolt (Figure 82) by rotating the bottom nut counterclockwise. Fine-tune the rear adjusters as required.
Cleaning Cleaning the Engine and Exhaust System Area Service Interval: Before each use or daily—Clean the engine and exhaust system area. Important: Do not use water to clean the engine. Use low-pressure compressed air. See the engine owner's manual. 1. Park the machine on a level surface, disengage the blade-control switch (PTO), 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. Open the hood. 4.
Storage 12. Check the condition of the blades; refer to Servicing the Cutting Blades (page 58). Storage Safety 13. Prepare the machine for storage when non-use occurs over 30 days. Prepare the machine for storage as follows: • Shut off the engine, remove the key, and wait for all moving parts to stop before you leave the operator’s position. Allow the machine to cool before adjusting, servicing, cleaning, or storing it. A.
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 is engaged. 1. Disengage the blade-control switch. 2. The parking brake is disengaged. 3. The motion-control levers are not in the NEUTRAL-LOCK position. 4. You are not sitting in the operator’s seat. 5. The battery is dead. 6. The electrical connections are corroded or loose. 7. A fuse is blown. 8. A relay or switch is damaged. 2.
Problem The machine does not drive. The machine vibrates abnormally. The cutting height is uneven. Possible Cause 1. The bypass valves are not closed tight. 1. Tighten the bypass valves. 2. The pump belt is worn, loose, or broken. 3. The pump belt is off a pulley. 4. The idler spring is broken or missing. 5. The hydraulic fluid level is low or too hot. 2. Change the belt. 1. Install new cutting blade(s). 2. The blade mounting bolt is loose. 3. The engine mounting bolts are loose. 4.
A B GND PWR CAN LO CAN HI SW PWR NC 6 3 5 4 2 P18 1 YELLOW GREEN RED/GREEN BLACK BLACK ORANGE/RED ORANGE RED/WHITE SERVICE PORT CAP02 ACC SIGNAL ACC PWR GND P16 C DUST CAP CAP01 CAP 68 RED/WHITE RED/WHITE P10 1 1 RED/WHITE RED/WHITE RED/WHITE RED/WHITE RED/WHITE OPC Switch SW04 P10 2 2 BRAKE Switch P11 P11 SW03 2 LH NEUTRAL Switch P13 SW01 P13 1 L04 S2 S1 P08 2 P09 2 GND OUT GND OUT +12V 7 5 P07 2 P1001 C B A RED/WHITE BLACK WHITE/BLACK RED/WHITE 1 2 RH
Hydraulic Schematic (Rev. A) g239212 69 TOW VALVE 17.8 CID YANMAR 3TNV88C 3000/1400 RPM TOW VALVE 17.8 CID 4000 PSI 4000 PSI 0.031 in 0.031 in 1.1 CID 1.1 CID 1:0.691 1:1 1:1.025 1:1.025 GEARBOX PRESSURE VALVE 313+/-30 PSI PTO PRESSURE TEST PORT PTO CLUTCH CHARGE RELIEF 86+/-15 PSI CHARGE PRESSURE TEST PORT 0.031 in Charge Pump 0.37 CID 43 PSI PORT 1 PORT 2 0.37 CID Line Filter Beta 11 = 200(ISO 16889) Suction Screen 100 Mesh Gear Pump C OIL COOLER .040 LIFT CYLINDER 3.
Electrical Schematic—Yanmar Engine 3TNV88C (Rev.
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.
