Form No. 3424-645 Rev B Z Master® Professional 7500-D Series Riding Mower With 96in TURBO FORCE® Rear Discharge Mower Model No. 74096—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 Contents 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. Safety ....................................................................... 4 Safety Alert Symbol ............................................ 4 General Safety ................................................... 5 Slope Indicator ...................................................
Safety Checking the Fuel Lines and Connections.................................................. 44 Electrical System Maintenance ........................... 45 Electrical System Safety ................................... 45 Servicing the Battery......................................... 45 Servicing the Fuses .......................................... 47 Drive System Maintenance .................................. 48 Releasing the Drive Wheel Release Valves ..................................................
General Safety This machine is capable of amputating hands and feet and of throwing objects. Toro designed and tested this lawn mower to offer reasonably safe service; however, failure to comply with safety instructions may result in injury or death. • Read, understand, and follow all instructions and warnings in the Operator’s Manual and other training material, on the machine, engine, and attachments. All operators and mechanics should be trained.
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 fully raised and locked position and wear the seat belt.
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.
decal126-8597 126-8597 For Models with 244 cm (96-inch) Decks 1. Height of cut 2. Range adjustment decal126-8760 126-8760 For Models with 244 cm (96-inch) Decks 1. Height of cut 2. Range adjustment decal126-9127 126-9127 For Models with 244 cm (96-inch) Decks 1. Front of deck decal126-9351 126-9351 1. Chassis (15 A) 3. Main (25 A) 2. Accessory (15 A) 4.
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. Check the air cleaner. 3. Check the engine-oil level. 4. Check the coolant level; refer to the Operator’s Manual for further instructions. 5. Check the tire pressure (2 locations). 10.
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. Engine—Start decal135-0670 135-0670 For Models with 244 cm (96-inch) Decks 1. Crushing hazard, hand—read the instructions before servicing or performing maintenance. decal135-0664 135-0664 1. Thrown object hazard—keep bystanders away. 2.
decal135-0679 135-0679 1. Rotating driveline hazard/entanglement hazard; belt—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 g236048 Figure 4 1. Center deck height-of-cut pin 5. Motion-control lever 2. Wing deck height-of-cut pin 6. Display monitor 9. Power point 13. Center deck 10. Fuel-tank cap 14. Center deck caster wheel 15. Anti-scalp roller 3. Wing deck 7. Roll bar 11. Skid 4. Parking-brake lever 8. Audible alarm 12.
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. PTO g228164 Figure 6 Horizon Display Monitor 1. Screen 2.
the blades. Engaging the PTO requires you to reset the PTO switch by disengaging, then engaging it. Alarm If an error occurs, an error message displays, the LED turns red, and the alarm sounds audibly as follows: Important: You must unfold the wing decks before you can engage the PTO. • A fast chirp sound indicates critical errors. • A slow chirping sound indicates less critical errors, Neutral-Lock Position such as required maintenance or service intervals.
Specifications Cutting width Operation 243.8 cm (96 inches) Note: Determine the left and right sides of the machine from the normal operating position. Working width—257.3 cm (101-5/16 inches) Overall width Overall length Overall height Tread width (center-to-center of tires, widthwise) 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) Before Operation Safety Roll bar up—182.4 cm (71-13/16 inches) Roll bar down—129.
Fuel Safety DANGER In certain conditions during fueling, static electricity can be released causing a spark which can ignite fuel vapors. A fire or explosion from fuel can burn you and others and cause property damage. • Always place fuel containers on the ground away from your vehicle before filling. • Do Not fill fuel containers inside a vehicle or on a truck or trailer bed because interior carpets or plastic truck bed liners may insulate the container and slow the loss of any static charge.
• Fuel filter plugging may be expected for a time • Keep engine and engine area free from after converting to biodiesel blends. accumulation of grass, leaves, excessive grease or oil, and other debris which can accumulate in these areas. • Contact your distributor for more information on biodiesel. • Clean up oil and fuel spills and remove fuel soaked debris. Filling the Fuel Tank • Allow the machine to cool before storing the machine in any enclosure.
Using the Rollover Protection System (ROPS) Performing Daily Maintenance Before starting the machine each day, perform the Each Use/Daily procedures listed in Maintenance (page 36). WARNING To avoid injury or death from rollover: keep the roll bar in the raised locked position and use the seat belt. Breaking in a New Machine Ensure that the rear part of the seat is secured with the seat latch. New engines take time to develop full power.
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.
Testing the Safety-Interlock System Service Interval: Before each use or daily Test the safety-interlock system before you use the machine each time. If the safety system does not 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.
During Operation • Be sure all drives are in neutral and parking brake During Operation Safety • General Safety • The operator must use their full attention when operating the machine. Do Not engage in any activity that causes distractions; otherwise, injury or property damage may occur. • WARNING Operating engine parts, especially the muffler, become extremely hot. Severe burns can occur on contact and debris, such as leaves, grass, brush, etc. can catch fire.
• • distance (twice the width of the machine) between the machine and any hazard. Use a walk behind machine or a hand trimmer to mow the grass in these areas. – Whenever you leave the mower. Do Not leave a running machine unattended. Stop engine, wait for all moving parts to stop: – Before refueling. – Before dumping the grass catcher. – Before making height adjustments. Tragic accidents can occur if the operator is not alert to the presence of children.
Rollover Protection System (ROPS) Safety Operating the Parking Brake A Rollover Protection System (roll bar) is installed on the machine. Always engage the parking brake when you stop the machine or leave it unattended. WARNING Engaging the Parking Brake There is no rollover protection when the roll bar is down. Wheels dropping over edges, ditches, steep banks, or water can cause rollovers, which may result in serious injury, death or drowning. Park the machine on a level surface.
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 17).
Shutting Off the Engine CAUTION Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. 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.
Driving Backward Adjusting the Height of Cut 1. Move the levers to the center, unlocked position. 2. To go backward, slowly pull the motion-control levers rearward (Figure 25). 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. Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. 2. Press the top of deck-lift switch to raise the center deck and wing decks. 3.
F. 6. Adjusting the Anti-Scalp Rollers 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: A. Remove the mounting hardware from the gauge wheel. B. Adjust the front and rear gauge wheels to the appropriate hole location (see the chart below and Figure 27) and install the mounting hardware.
Adjusting the Skids For Models with Rear Discharge 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). Adjust the skids as shown in Figure 31. g018862 Figure 29 1. Nyloc nut (3/8 inch) 3. Spacer 2. Anti-scalp rollers 4. Bolt The 96-inch deck has 13 anti-scalp roller locations. For adjustment, refer to Figure 30.
Operating Tips 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. 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.
Transporting the Machine After Operation Use a heavy-duty trailer or truck to transport the machine. Use a full-width ramp. Ensure that the trailer or truck has all the necessary brakes, lighting, and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you or bystanders avoid injury. Refer to your local ordinances for trailer and tie-down requirements.
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 32). 4. Back the machine up the ramp (Figure 33). g028043 Figure 33 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 WARNING Hydraulic fluid escaping under pressure can penetrate skin and cause injury. Fluid accidentally injected into the skin must be surgically removed within a few hours by a doctor familiar with this form of injury or gangrene may result. Maintenance Safety WARNING While maintenance or adjustments are being made, someone could start the engine. Accidental starting of the engine could seriously injure you or other bystanders.
• Carefully release pressure from components with WARNING stored energy. Contact with moving parts or hot surfaces may cause personal injury. • Keep hands and feet away from moving parts. If possible, Do Not make adjustments with the engine running. If the maintenance or adjustment procedure require the engine to be running and components moving, use extreme caution. Keep your fingers, hands, and clothing clear of rotating components and hot surfaces.
Maintenance Service Interval Monthly Yearly Maintenance Procedure • Check the battery charge. • • • • • Grease the front caster pivots. Grease the idler pivot. Grease the deck drive PTO. Lubricate the caster-wheel hubs. If you operate the machine less than 200 hours, change the engine oil and filter. Important: Refer to your engine owner's manual for additional maintenance procedures.
g250852 Figure 36 g238422 Lubricating the Caster-Wheel Hubs Figure 35 1. Deck drive PTO 3. Caster/fixed wheel bearings 2. Deck-idler pivot 4. Caster-wheel spindles Service Interval: Yearly Lubricating the Drive U-Joints and Splined Slip Joint 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.
8. Pry out seals and inspect bearings for wear or damage and replace if necessary. Engine Maintenance 9. Pack the bearings with a general-purpose grease. Engine Safety Insert 1 bearing and 1 new seal into the wheel. • Shut off the engine before checking the oil or 10. adding oil to the crankcase. Note: Replace the seals. 11.
Servicing the Air Cleaner Servicing the Engine Oil Service Interval: Every 400 hours Engine-Oil Specifications Note: If the foam gasket in the cover is damaged, replace it. could force dirt through the filter into the intake tract. The engine ships with oil in the crankcase; however, check the oil level before and after you first start the engine. Check the oil level before operating the machine each day or each time you use the machine.
Changing the Engine Oil and Filter Service Interval: 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. Every 400 hours—Change the engine oil and filter if using Toro Premium Engine Oil (API classification CK-4 or higher) more often in dirty and dusty conditions.
Fuel System Maintenance 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. g027477 Figure 42 7. 1. Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. 2.
Changing the Water Separator Inspecting the Engine-Valve Clearance Service Interval: Every 400 hours—Replace the fuel-filter canister for the water separator (more often in dirty and dusty conditions). Service Interval: Every 800 hours Inspect the engine-valve clearance. Refer to the engine owner’s manual. Checking the Fuel Lines and Connections Service Interval: Every 400 hours Inspect the fuel lines for deterioration, damage, chaffing, or loose connections.
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 46). 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 47).
Adjusting the Tracking Drive System Maintenance 1. Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. Releasing the Drive Wheel Release Valves 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Use the drive wheel release valves to release the hydrostatic drive system, which allows you to push the machine without the running the engine. 3.
Checking the Tire Pressure Service Interval: Every 50 hours/Monthly (whichever comes first) Rear tire air pressure specification: 124 kPa (18 psi). Note: The caster tires are semi-pneumatic tires and do not require air pressure maintenance. DANGER Low tire pressure decreases machine side-hill stability. This could cause a rollover, which may result in personal injury or death. Do not under-inflate the tires. Check the air pressure in the rear tires.
Adjusting the Caster-Pivot Bearing Servicing the Gearbox Checking the Gearbox-Oil Level Service Interval: Every 500 hours/Yearly (whichever comes first) 1. Service Interval: Every 50 hours Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. 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. 3.
Changing the Gearbox Oil Cooling System Maintenance Service Interval: After the first 200 hours Every 400 hours Cooling System Safety 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. 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. 3.
5. Close the hood. 6. Cleaning the Radiator Remove the coolant hose from the oil cooler and drain the coolant from the engine block (Figure 56). Service Interval: Every 50 hours—Clean the engine-cooling system (more often in dirty and dusty conditions). Clean the radiator to prevent the engine from overheating. Note: If the mower deck or engine shuts off due to overheating, check the radiator for excessive buildup of debris. 1.
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. This procedure must be followed after the first 100 hours or when a brake component has been removed or replaced. 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 Releasing the Drive Wheel Release Valves (page 48). 15.
g243945 Figure 59 1. Square hole in the idler arm for the ratchet 2. Wing deck mower belt 9. g243947 Figure 60 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 61). 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.
5. Temporarily install a jumper wire across the terminals in the connector of the main wire harness. 6. Start the engine and run it at full throttle and disengage the brake. Note: You do not need to be in the seat because the jumper wire is being used. 7. Run the unit for at least 5 minutes with the drive levers at full forward speed to bring the hydraulic fluid up to the operating temperature. Note: The motion-control levers needs to be in neutral while making any necessary adjustments. 8.
Adjusting the Motion-Control Damper Hydraulic System Maintenance You can adjust the top damper-mounting bolt to obtain the desired motion-control lever resistance. Refer to Figure 65 for mounting options. Hydraulic System Safety • Seek immediate medical attention if fluid is injected • • • • g008620 Figure 65 Right Motion Control Shown into skin. Injected fluid must be surgically removed within a few hours by a doctor.
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 68). 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. Mower Deck Maintenance Leveling the Mower Deck Install the 4 drain plugs. Setting up the Machine Note: The wheel motor drain plugs are Note: Ensure that the mower deck is level before matching the height of cut (HOC).
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. 7. Start the engine. Adjusting the Center Deck 1. Loosen the jam nuts on the top of each deck adjuster. Fine-tune the adjuster on the front deck-lift assembly by turning it to get the correct height for the left and right, front blade tips on the center deck (Figure 72). Note: The parking brake must be engaged and the motion-control levers must be out to start the engine.
7. If the deck is too low, tighten the single-point adjustment bolt by rotating it clockwise (Figure 73). 3. If the deck is too high, loosen the single-point adjustment bolt by rotating it counterclockwise. Loosen the front and rear height-of-cut plate mounting bolts. Fine-tune the rear adjusters as required. You can adjust the single-point adjustment to gain more adjustment. The left and right wing decks have blade height adjustments with front and rear adjustment points.
Servicing the Cutting Blades To ensure a superior quality of cut, keep the blades sharp. For convenient sharpening and replacement, keep extra blades on hand. Blade Safety g006530 Figure 75 A worn or damaged blade can break, and a piece of the blade could be thrown toward you or bystanders, resulting in serious personal injury or death. Trying to repair a damaged blade may result in discontinued safety certification of the product. • Inspect the blades periodically for wear or damage. 1.
Sharpening the Blades Note: If this dimension exceeds 3 mm (1/8 inch), the blade is bent and must be replaced. 1. DANGER Use a file to sharpen the cutting edge at both ends of the blade (Figure 78). Note: Maintain the original angle. A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders. Note: The blade retains its balance if the same amount of material is removed from both cutting edges. • Always replace bent or damaged blade with a new blade.
Cleaning Storage Cleaning the Engine and Exhaust System Area Storage Safety • Always shut off the engine, remove the key, wait for all moving parts to stop, and allow the machine to cool before adjusting, cleaning, storing, or repairing it. Service Interval: Before each use or daily—Clean the engine and exhaust system area. • Let the engine cool before storing the machine. • Do not store the machine or fuel near flames or Important: Do not use water to clean the engine.
Prepare the machine for storage when non-use occurs over 30 days. Prepare the machine for storage as follows: A. Run the engine to distribute conditioned fuel through the fuel system for 5 minutes. B. Shut off the engine, allow it to cool, and drain the fuel tank. Note: Start the engine and run it until it shuts off. C. Dispose of fuel properly. Recycle as per local codes. Important: Do not store stabilizer/conditioned fuel longer than the duration recommended by the fuel-stabilizer manufacturer. 12.
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 The machine pulls left or right (with the motion-control levers fully forward). There is abnormal vibration. Mowing is resulting in uneven cutting height. The blades do not rotate. Possible Cause 1. The tracking needs adjustment. 1. Adjust the tracking. 2. The tire pressure in the drive tires is not correct. 3. The reverse indicator and motion-control linkage need adjustment. 2. Adjust the tire pressure in the drive tires. 3. Adjust the reverse indicator and the motion-control linkage. 1.
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 69 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 70 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.
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.
