Form No. 3422-859 Rev B Z Master® Professional 7500-D Series Riding Mower With 60in or 72in TURBO FORCE® Mower Model No. Model No. Model No. Model No. Register at www.Toro.com. Original Instructions (EN) 74060—Serial No. 74064—Serial No. 74072—Serial No. 74074—Serial No.
Introduction 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. This rotary-blade, riding lawn mower is intended to be used by residential homeowners or professional, hired operators.
Contents serious injury or death if you do not follow the recommended precautions. Safety ....................................................................... 4 General Safety ................................................... 4 Slope Indicator ................................................... 5 Safety and Instructional Decals .......................... 6 Product Overview ................................................... 13 Controls ...........................................................
Safety Inspecting the Engine-Valve Clearance ............ 42 Checking the Fuel Lines and Connections.................................................. 42 Electrical System Maintenance ........................... 42 Electrical System Safety ................................... 42 Servicing the Battery......................................... 42 Servicing the Fuses .......................................... 44 Drive System Maintenance ..................................
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. decal93-7818 93-7818 decalbatterysymbols 1. Warning—read the Operator's Manual for instructions on torquing the blade bolt/nut to 115 to 149 N∙m (85 to 110 ft-lb). 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.
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. decal126-6464 126-6464 For Models with Side Discharge 1. Thrown objects hazard—keep bystanders a safe distance away from the machine. 3. Cutting/dismemberment of hand or foot—stay away from moving parts; keep all guards and shields in place. 2.
decal126-9276 126-9276 For Models with 183 cm (72-inch) Decks with Side Discharge decal126-9275 126-9275 For Models with 152 cm (60-inch) or 183 cm (72-inch) Decks decal126-9278 126-9278 1. Engine—Off 4. Push the bottom of the button to lower the deck. 2. Engine—On 5. Push the top of the button to raise the deck. 3.
decal126-9279 126-9279 1. Read the instructions before servicing or performing maintenance to the machine. 2. Time interval 7. Check the jackshaft-fluid level. 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.
decal127-0326 127-0326 1. Read the Operator's Manual. 3. Remove the key and read the Operator's Manual before performing maintenance or servicing the machine. 2. Height of cut decal131-1180 131-1180 1. Read the Operator's Manual. (A) Short, light grass; dry conditions; maximum dispersion; (B) Bagging setting; (C) Tall, dense grass; wet conditions; maximum ground speed decal135-0328 135-0328 1. Torque the wheel lug nuts to 129 N∙m (95 ft-lb). decal127-6662 127-6662 Rear Discharge Mowers Only 1.
decal135-0664 decal135-1432 135-0664 Rear Discharge Mowers Only 1. Thrown objects hazard—keep bystanders a safe distance away from the machine. 135-1432 For Models with 152 cm (60-inch) or 183 cm (72-inch) Decks 2. Cutting/dismemberment of hand 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. decal135-0679 135-0679 1.
Product Overview g227303 Figure 4 1. Height-of-cut pin 7. Motion-control lever 2. Parking-brake lever 8. Fuel-tank cap 9. Anti-scalp roller 3. Monitor/controls 4. Roll bar 5. Engine screen 10. Skid 11. Caster wheel 6. Audible alarm and power point 12.
Controls Information Screen Become familiar with all the controls before you start the engine and operate the machine. The information screen displays information relative to machine operation; refer to the Software Guide for more information. Control Panel Buttons The multi-functional buttons are located at the bottom of the panel. The icons displayed on the information screen above the buttons indicate the current function.
Deck-Lift Switch Attachments/Accessories Press the switch rearward to raise the deck. A selection of Toro approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or authorized Toro distributor or go to www.Toro.com for a list of all approved attachments and accessories. Press the switch forward to lower the deck.
Operation Tread Width of Caster Wheels (Center-to-Center of Tires)—Side Discharge Machines 60-inch Deck 72-inch Deck 101.3 cm (39.9 inches) 120.7 cm (47.5 inches) Note: Determine the left and right sides of the machine from the normal operating position. Before Operation Tread Width of Caster Wheels (Center-to-Center of Tires)—Rear Discharge Machines 60-inch Deck 72-inch Deck 84 cm (33.1 inches) 84 cm (33.
• • • • • • • 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 • Before leaving the operating position (including 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.
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. Use common sense and good judgment when performing this evaluation.
Operating the Parking Brake Operating the Mower Blade-Control Switch (PTO) Always engage the parking brake when you stop the machine or leave it unattended. The blade-control switch (PTO) starts and stops the mower blades and any powered attachments. Engaging the Parking Brake Engaging the Blade-Control Switch (PTO) Park the machine on a level surface. Note: Engaging the blade-control switch (PTO) with the throttle position at half or less causes excessive wear to the drive belts.
Starting the Engine Shutting Off the Engine Important: Do not engage starter for more 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. CAUTION 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 engine the first time after adding fuel to an empty fuel system.
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 24).
Using the Side Discharge Adjusting the Height of Cut The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. Adjust the height of cut from 25 to 140 mm (1 to 5-1/2 inches) in 6 mm (1/4 inch) increments by moving the clevis pin into different hole locations. DANGER Without a grass deflector, discharge cover, or a complete grass-catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris.
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.
6. If the cam locks do not lock the baffle into place or it is too tight, loosen the lever and then rotate the cam lock. Note: Adjust the cam lock until the desired locking pressure is achieved. g227783 g027727 Figure 29 Rear Discharge Machines 1. Bolt 3. Anti-scalp roller 2. Bushing 4. Flange nut 5. For side discharge machines, torque the flange nut to 68 to 75 N∙m (50 to 55 ft-lb). 6. For rear discharge machines, torque the flange nut to 41 to 47 N∙m (30 to 35 ft-lb).
Position B Adjusting the Skids Use this position when bagging. Always align it with the blower opening. 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 34. g005833 Figure 32 Position C This is the full open position.
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 35). 4. Back the machine up the ramp (Figure 36). g028043 Figure 36 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 Maintenance Safety • Before repairing the machine do the following: • • • • • • • • • • • • • – Disengage the drives. – Engage the parking brake. – Shut off the engine and remove the key. Park the machine on a level surface.
Lubrication Greasing the Machine Service Interval: Every 400 hours/Yearly (whichever comes first)—Grease the deck-idler pivots. Grease more frequently when operating conditions are extremely dusty or sandy. Grease Type: No. 2 lithium or molybdenum grease 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.
Lubricating the Caster Pivots 10. Note: Replace the seals. 11. Service Interval: Every 400 hours/Yearly (whichever comes first) 1. Remove hex plug and cap. 2. Thread the grease fitting in the hole and pump with grease until it oozes out around the top bearing. 3. Remove grease fitting and install the plug. 4. Install the cap. Insert 1 bearing and 1 new seal into the wheel. 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.
Installing the Battery WARNING Note: Position the battery in the tray with the terminal posts opposite from the hydraulic tank. Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. • Always connect the positive (red) battery cable before connecting the negative (black) cable. 1.
Drive System Maintenance Note: Do not run the machine with the battery disconnected, electrical damage may occur. Releasing the Drive Wheel Release Valves Use the drive wheel release valves to release the hydrostatic drive system, which allows you to push the machine without the running the engine. Rotate each bypass valve counterclockwise 1 turn to release; rotate each bypass valve clockwise to reset system (Figure 51). Important: Do not overtighten. Do not tow the g000960 Figure 49 1.
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 59). 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 60 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 60). Note: The measurement should be 8.3 cm (3-1/4 inches). 9.
Belt Maintenance 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. Replacing the Mower Belt g235768 Squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks and cracks are signs of a worn mower belt. Replace the belt if any of these conditions are evident. 1.
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. g027730 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 66). 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. 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 69 for mounting options. Hydraulic System Safety • Seek immediate medical attention if fluid is injected • • • • g008620 Figure 69 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 72). 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). 1.
7. Raise the discharge deflector (side discharge mowers only). 8. Measure from the level surface to the front tip of the center blade (Figure 75). Note: The measurement should read 7.6 mm (3 inches). In most conditions, the back tips on the side blades should be adjusted as follows: • Side Discharge Machines: 6.4 mm (1/4 inch) higher than the front. • Rear Discharge Machines: should be level with the front. g231991 Figure 76 1. Deck adjustment 3. Adjustment nut 2. Jam nut 10.
adjustment bolt by rotating it counterclockwise (Figure 79). Note: Loosen or tighten the single-point adjustment bolt enough to move the height-of-cut plate mounting bolts at least 1/3 the length of the available travel in their slots. This regains some up and down adjustment on each of the 4 deck links. g232012 Figure 77 1. Single-point height adjustment bolt 3. Rear height-of-cut plate mounting bolt 2. Front height-of-cut plate mounting bolt g009042 14.
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 80 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.
Note: The difference between the dimensions obtained in steps 4 and 5 must not exceed 3 mm (1/8 inch). 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. • Never file or create sharp notches in the edges or surfaces of blade.
Sharpening the Blades 1. Use a file to sharpen the cutting edge at both ends of the blade (Figure 84). 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 84 g004536 1. Sharpen at original angle. 2. Figure 86 Left and center spindle shown Check the balance of the blade by putting it on a blade balancer (Figure 85). 1. Sail area of the blade 2.
Replacing the Grass Deflector Cleaning Cleaning the Engine and Exhaust System Area Side Discharge Machines Only WARNING Service Interval: Before each use or daily—Clean the engine and exhaust system area. An uncovered discharge opening could allow the machine to throw objects toward you or bystanders, resulting in serious injury. Also, contact with the blade could occur. Important: Do not use water to clean the engine. Use low-pressure compressed air. See the engine owner's manual.
Storage A. Run the engine to distribute conditioned fuel through the fuel system for 5 minutes. Storage Safety B. Shut off the engine, allow it to cool, and drain the fuel tank. • Let the engine cool before storing the machine. • Do not store the machine or fuel near flames or Note: Start the engine and run it until it shuts off. drain the fuel indoors. C. Cleaning and Storing the Machine 1. 2.
Troubleshooting Problem The starter does not crank. The engine does not start, starts hard, or fails to keep running Possible Cause 1. The blade-control switch (PTO) is engaged. 1. Move the blade-control switch (PTO) to disengaged. 2. The parking brake is not engaged. 3. The drive levers are not in the NEUTRAL-LOCK position. 4. The operator is not seated. 5. The battery is dead. 6. The electrical connections are corroded or loose. 7. The fuse is blown. 8. The relay or switch is broken. 2.
Problem There is abnormal vibration. Mowing is resulting in uneven cutting height. Possible Cause 1. The cutting blade(s) is/are bent or unbalanced. 1. Install new cutting blade(s). 2. The blade mounting bolt is loose. 3. The engine mounting bolts are loose. 4. The engine pulley, idler pulley, or blade pulley is loose. 5. The engine pulley is damaged. 6. The blade spindle is bent. 7. The motor mount is loose or worn. 2. Tighten the blade mounting bolt. 3. Tighten the engine mounting bolts. 4.
Electrical Schematic—Machine with Horizon Display Monitor (Rev.
J02 B+ @ BATTERY 1 CLAMP J01 OIL PRESSURE 1 SWITCH P03 STARTER A B B+ C RED RED RED RED BROWN YELLOW ORANGE WHITE BLUE BROWN RED YELLOW VIOLET SP06 SP02 2 1 P04 AIR FILTER SW RED/WHITE GRAY/BROWN P02 7 RED 26 GREEN 25 BLACK 8 RED 37 BLUE 52 BLACK 39 VIOLET 54 ORANGE 38 BLACK 11 BLUE 51 BROWN 20 BLUE 19 YELLOW 29 50 28 60 59 YELLOW 34 12 30 48 18 47 17 33 16 4 5 SP12 ALTERNATOR J03 1 P05 1 2 B IG YELLOW YELLOW VIOLET VIOLET WHITE P24 1 2 3 4 5 6 7 8 9 10 11 12 ORANGE 5VS PRAIL ANALOG GND 5VS
BATTERY CLAMP J02 1 B+ A STARTER P03 B B+ C OIL TEMP P21 1 SENSOR 2 ENGINE SPEED P13 1 2 SENSOR 6 5 4 RACK P02 ACT 3 2 1 RED RED/GREEN RED/GREEN BLACK BLACK BLACK SP11 J03 BLACK RED/GREEN ALTERNATOR 1 P05 1 2 B IG L BLUE/GREEN RED/GREEN BLACK ORANGE SP2 SP1 SP9 BLUE/RED BLACK TO CONNECTOR P06 ON HARNESS 1 2 1 1 2 P07 1 2 4 9 5 3 8 6 12 7 10 11 J01 P04 P06 OIL FUEL AIR FILTER PRESSURE PUMP SW SW BLACK RED/WHITE SP7 P09 SP10 BLUE/RED BLUE/YELLOW SP6 FLY BACK DIODE P16 A B 1 2 3
