Form No. 3424-645 Rev A 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 serious injury or death if you do not follow the recommended precautions. This rotary-blade, riding lawn mower is intended to be used by residential homeowners or professional, hired operators. It is designed primarily for cutting grass on well-maintained lawns on residential or commercial properties. It is not designed for cutting brush or for agricultural uses.
Contents Checking the Fuel Lines and Connections.................................................. 43 Electrical System Maintenance ........................... 43 Electrical System Safety ................................... 43 Servicing the Battery......................................... 43 Servicing the Fuses .......................................... 46 Drive System Maintenance .................................. 46 Releasing the Drive Wheel Release Valves ................................................
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. • Always keep the roll bar in the fully raised and locked position and use the seat belt.
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 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.
decal112-9028 112-9028 1. Warning—stay away from moving parts; keep all guards 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. 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 Machines without MyRide Only 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 Rear Discharge Mowers Only 1.
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 Transport width set at the 3-inches height of cut—184.2 cm (72-1/2 inches) Overall length 247.1 cm (97-1/4 inches) Overall height Tread width (center-to-center of tires, widthwise) Before Operation Before Operation Safety Roll bar up—182.
• • • • • • • Biodiesel Ready containers on the ground, away from your vehicle before filling. Remove the equipment from the truck or trailer 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. Do not operate the machine without the entire exhaust system in place and in proper working condition.
Using the Rollover Protection System (ROPS) WARNING To avoid injury or death from rollover: keep the roll bar in the raised locked position and use the seat belt. Ensure that the rear part of the seat is secured with the seat latch. 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.
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 • Never run an engine in an area where exhaust During Operation Safety • • General Safety • The owner/operator can prevent and is responsible • • • • • • • • • • • • • • • for accidents that may cause personal injury or property damage. Wear appropriate clothing, including eye protection; long pants; slip-resistant, substantial footwear; and hearing protection. Tie back long hair and do not wear loose jewelry. Use your full attention while operating the machine.
injury or death. The operator is responsible for safe slope operation. Operating the machine on any slope requires extra caution. Before using the machine on a slope, do the following: – Review and understand the slope instructions in the manual and on the machine. – Use an angle indicator to determine the approximate slope angle of the area. – Never operate on slopes greater than 15 degrees. – Evaluate the site conditions of the day to determine if the slope is safe for machine operation.
Lowering the Wing Decks Operating the Parking Brake Important: You must unfold the wing decks before you can engage the PTO. Always engage the parking brake when you stop the machine or leave it unattended. 1. Engaging the Parking Brake Remove the clevis pin and hairpin cotter that secures each wing in the upright position and place them in the storage position (Figure 18). Park the machine on a level surface. g227611 Figure 16 Disengaging the Parking Brake g212197 Figure 18 1.
Operating the Mower Blade-Control Switch (PTO) The blade-control switch (PTO) starts and stops the mower blades and any powered attachments. Engaging the Blade-Control Switch (PTO) Note: Engaging the blade-control switch (PTO) with the throttle position at half or less causes excessive wear to the drive belts. g008945 Figure 19 Disengaging the Blade-Control Switch (PTO) g230704 Figure 21 g009174 Figure 20 Starting the Engine Important: Do not engage starter for more than 5 seconds at a time.
Raising and Locking the Wing Decks 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. 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.
Driving the Machine Using the Motion-Control Levers 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).
Driving Backward 1. Move the levers to the center, unlocked position. 2. To go backward, slowly pull the motion-control levers rearward (Figure 26).
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. 3.
Adjusting the Skids Operating Tips For Models with Rear Discharge Using the Fast Throttle Setting 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). For best mowing and maximum air circulation, operate the engine at the FAST position.
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 grass and debris from the cutting units, 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.
Transporting the Machine Use a heavy-duty trailer or truck to transport the machine. Use a full-width ramp. Ensure that the trailer or truck has all the necessary brakes, lighting, and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you or bystanders avoid injury. Refer to your local ordinances for trailer and tie-down requirements.
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 33). 4. Back the machine up the ramp (Figure 34). g028043 Figure 34 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 Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 100 hours • Check the wheel lug nuts. • Adjust the parking brake. After the first 200 hours • Change the engine oil and filter. • Change the deck gearbox oil. • Change the hydraulic fluid and filter. Before each use or daily • • • • • • • Check the safety system. Check the engine-oil level. Check the engine-coolant level. Check the hydraulic-fluid level. Inspect the blades.
CAUTION If you leave the key in the switch, someone could accidently start the engine and seriously injure you or other bystanders. Remove the key from the switch before you perform any maintenance. Pre-Maintenance Procedures Lubrication Maintenance Safety Grease more frequently when operating conditions are extremely dusty or sandy. Greasing the Machine • Before repairing the machine do the following: Grease Type: No. 2 lithium or molybdenum grease – Disengage the drives.
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.
8. Pry out seals and inspect bearings for wear or damage and replace if necessary. 9. Pack the bearings with a general-purpose grease. 10. Insert 1 bearing and 1 new seal into the wheel. Note: Replace the seals. 11. If the axle assembly is missing both spacer nuts, apply a thread-locking adhesive to 1 spacer nut and thread it onto the axle with the wrench flats facing outward. Note: Do not thread the spacer nut all of the way onto the end of the axle.
Engine Maintenance Servicing the Air Cleaner Service Interval: Every 400 hours Engine Safety Note: If the foam gasket in the cover is damaged, replace it. • Shut off the engine before checking the oil or Important: Avoid using high-pressure air, which adding oil to the crankcase. could force dirt through the filter into the intake tract. • Keep your hands, feet, face, clothing, and other body parts away the muffler and other hot surfaces.
Servicing the Engine Oil Engine-Oil Specifications 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. Crankcase capacity: 6.
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.
Changing 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.
Inspecting the Engine-Valve Electrical System Clearance Maintenance Service Interval: Every 800 hours Electrical System Safety Inspect the engine-valve clearance. Refer to the engine owner’s manual. • 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. Checking the Fuel Lines and Connections • Charge the battery in an open, well-ventilated area, away from sparks and flames.
Charging the Battery Voltage Reading Percent Charge Maximum Charger Settings Charging Interval 12.6 V or greater 100% 16 V/7 A No charging required 12.4 V to 12.6 V 75% to 100% 16 V/7 A 30 minutes 12.2 V to 12.4 V 50% to 75% 16 V/7 A 1 hour Never smoke near the battery and keep sparks and flames away from battery. 12.0 V to 12.2 V 25% to 50% 14.4 V/4 A 2 hours Important: Always keep the battery fully charged 11.7 V to 12.0 V 0% to 25% 14.4 V/4 A 3 hours (1.265 specific gravity).
Jump-Starting the Machine 1. voltage. These instructions are for negative ground systems only. Check the weak battery for terminal corrosion (white, green, or blue “snow”). 3. You must clean it off prior to jump-starting. Clean and tighten connections as necessary. Connect the positive (+) cable to the positive (+) terminal of the discharged battery that is wired to the starter or solenoid (Figure 47).
Servicing the Fuses Drive System Maintenance 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.
Adjusting the Tracking 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. Move the throttle midway between FAST and Slow. 4. Move both motion-control levers all the way forward until they both hit the stops in the T-slot. 5. Check which way the machine tracks.
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 5. Cleaning the Radiator Service Interval: Every 50 hours—Clean the engine-cooling system (more often in dirty and dusty conditions). 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.
6. Brake Maintenance Remove the coolant hose from the oil cooler and drain the coolant from the engine block (Figure 57). 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.
13. 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 the brake is in the released position. g228555 Figure 58 1. Front location 5. Spring 2. Rear location 6. Link assembly 3. 8.3 cm (3-1/4 inches) 7. Length 4. Gap 8. Measure the length of the spring (Figure 58). Note: The measurement should be 8.3 cm (3-1/4 inches). 9.
Belt Maintenance 8. Remove the belt from the mower deck pulleys (Figure 60). Inspecting the Belts Service Interval: Every 50 hours Check the belts whenever they squeal while rotating, the blades slip while cutting grass, or if the belts have frayed edges, burn marks, or cracks. If any of these conditions occur, replace the belts.
Checking the Alternator-Belt Tension 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). g243947 Figure 61 1. Spring-loaded idler pulley 3. Spring 2. Square hole in the idler arm for the ratchet 4. Center deck mower belt 7. Install the new belt around the mower deck pulleys. 8.
Controls System Maintenance 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. 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. Loosen the bolts and flange nuts installed in the levers (Figure 63). 4.
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. Adjusting the Motion-Control Damper You can adjust the top damper-mounting bolt to obtain the desired motion-control lever resistance. Refer to Figure 66 for mounting options. Note: You do not need to be in the seat because the jumper wire is being used. 7.
Hydraulic System Maintenance 2. Note: Run the engine at the lowest possible rpm to purge any air in the system. Hydraulic System Safety Important: Do not engage the PTO. • Seek immediate medical attention if fluid is injected • • • • Move the motion-control levers to the NEUTRAL-LOCK position and start the engine. into skin. Injected fluid must be surgically removed within a few hours by a doctor.
8. 9. Replace the dipstick and thread the fill cap finger-tight onto the filler neck. Check all hoses and fittings for leaks. Changing the Hydraulic Fluid and Filter Service Interval: After the first 200 hours—Change the hydraulic fluid and filter. Every 400 hours—Change the hydraulic fluid and filter if using Mobil® 424 hydraulic fluid. Every 800 hours—Change the hydraulic fluid and filter if using Toro Premium Transmission/Hydraulic Tractor Fluid. 1.
Mower Deck Maintenance 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. Leveling the Mower Deck Note: The parking brake must be engaged and the motion-control levers must be out to start the engine. The operator does not have to be in the seat. Ensure that all persons are clear of the deck wings.
Adjusting the Center Deck 1. 7. To increase the cutting height, turn the adjuster screw clockwise; to decrease, turn it counterclockwise. 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. Loosen the jam nuts on the top of each deck adjuster.
3. Servicing the Cutting Blades The left and right wing decks have blade height adjustments with front and rear adjustment points. To adjust the wing-blade height, first loosen the front and rear height-of-cut hanger mounting nuts. There are 4 locations (2 on each side of the channel) as shown in Figure 75. To ensure a superior quality of cut, keep the blades sharp. For convenient sharpening and replacement, keep extra blades on hand.
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 76 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.
Sharpening the Blades 1. Cleaning Use a file to sharpen the cutting edge at both ends of the blade (Figure 79). Cleaning the Engine and Exhaust System Area Note: Maintain the original angle. Note: The blade retains its balance if the same amount of material is removed from both cutting edges. 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.
Storage Prepare the machine for storage when non-use occurs over 30 days. Prepare the machine for storage as follows: Storage Safety 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. • 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.
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 67 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 68 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.
