Form No. 3409-781 Rev B Z Master® Professional 5000 Series Riding Mower with 60in or 72in TURBO FORCE® Side Discharge Mower Model No. 74933—Serial No. 400000000 and Up Model No. 74934—Serial No. 400000000 and Up Register at www.Toro.com.
This spark ignition system complies with Canadian ICES-002 It is a violation of California Public Resource Code Section 4442 or 4443 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order or the engine is constructed, equipped, and maintained for the prevention of fire. Please refer to the engine manufacturer’s information included with the machine.
Contents Inspecting the LPG System .............................. 48 Servicing the Electronic Fuel-Injection System.......................................................... 49 Electrical System Maintenance ........................... 50 Electrical System Safety ................................... 50 Servicing the Battery......................................... 50 Servicing the Fuses .......................................... 51 Jump-Starting the Machine...............................
Safety This machine has been designed in accordance with ANSI B71.4-2012. General Safety This product is capable of amputating hands and feet and of throwing objects. Always follow all safety instructions to avoid serious personal injury. Using this product for purposes other than its intended use could prove dangerous to you and bystanders. • Read and understand the contents of this Operator’s Manual before you start the engine.
Slope Indicator g011841 Figure 3 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 15 degrees. Use the slope chart to determine the degree of slope of hills before operating. Do not operate this machine on a slope greater than 15 degrees. Fold along the appropriate line to match the recommended slope. 2. Align this edge with a vertical surface, a tree, building, fence pole, etc. 3.
Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or missing. decal58-6520 decal106-5517 58-6520 106-5517 1. Grease 1. Warning—do not touch the hot surface. decal93-7818 93-7818 1. Warning—read the Operator's Manual for instructions on torquing the blade bolt/nut to 115 to 149 N∙m (85 to 110 ft-lb). decal107-3069 decal99-8936 107-3069 99-8936 1. Machine speed 4.
decal110-2067 110-2067 decal116-5988 116-5988 1. Parking brake—engaged 2. Parking brake—disengaged decaloemmarkt Manufacturer's Mark 1. Indicates the blade is identified as a part from the original machine manufacturer. decal116-3446 116-3446 1. Battery 4. Parking brake 2. Hour meter 3. PTO 5. Neutral 6. Operator-presence switch decal110-2068 110-2068 1. Read the Operator's Manual. decal116-4858 116-4858 decal112-9028 112-9028 1. Warning—stay away from moving parts; keep all guards in place.
decal121-7586 121-7586 1. Fast 2. Variable-speed control 3. Slow 4. Power takeoff (PTO) decal126-2055 126-2055 1. Wheel lug nut torque 95 ft-lb (129 N∙m) (4x) 2. Wheel hub nut torque 235 ft-lb (319 N∙m) 3. Read and understand the Operator’s Manual before performing any maintenance, check torque after first 100 hours then every 500 hours thereafter. decal117-0346 117-0346 1.
decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery. decal126-4398 1. Explosion hazard 6. Keep bystanders a safe distance from the battery. 2. No fire, open flame, or smoking 7. Wear eye protection; explosive gases can cause blindness and other injuries. 3. Caustic liquid/chemical burn hazard 4. Wear eye protection. 8. Battery acid can cause blindness or severe burns. 9. Flush eyes immediately with water and get medical help fast. 126-4398 1.
decal126-3277 126-3277 1. IMPORTANT: Use only replacement tank(s) that are free of dents or damage. Match size and type required on tank specification decal. 7. Remove the empty tank(s). Check the valve and fittings for debris or damaged O-rings. 2. Stop the machine on a level surface, disengage the PTO, and engage the parking brake. 8. Install full replacement tank(s) by aligning the center hole on the tank collar over the mounting tab/index pin. 3.
decal125-9383 125–9383 1. Check hydraulic fluid every 50 operating hours. 3. Check the tire pressure every 50 operating hours. 2. Read the Operator’s Manual for information on lubricating the machine. 4. Read the Operator’s Manual before servicing or performing maintenance.
decal132-0871 132-0871 Note: This machine complies with the industry standard stability test in the static lateral and longitudinal tests with the maximum recommended slope indicated on the decal. Review the instructions for operating the machine on slopes in the Operator’s Manual as well as the conditions in which you would operate the machine to determine whether you can operate the machine in those conditions on that day and at that site.
decal136-5508 136-5508 1.
Controls Product Overview Become familiar with all the controls before you start the engine and operate the machine (Figure 4 and Figure 5). g013112 Figure 5 g027420 Figure 4 1. Height-of-cut deck-lift pedal 6. LPG-fuel tank 2. Transport lock 7. Roll bar 3. Parking-brake lever 8. Motion-control levers 4. Controls 5. Seat belt 1. PTO switch 4. Hour meter/safety-interlock display 2. Throttle control 5. Ignition switch 3. Malfunction-indicator light (MIL) 6.
Safety-Interlock Indicators Battery-Indicator Light There are symbols on the hour meter that indicate with a black triangle that the interlock component is positioned correctly (Figure 6). If you turn the ignition key to the ON position for a few seconds, the battery voltage displays in the area where the hours are normally displayed. The battery light turns on when the ignition is turned on and when the charge is below the correct operating level (Figure 6). g013439 Figure 6 1. Battery light 3.
Blade-Control Switch (Power Takeoff) Specifications The blade-control switch (PTO) engages and disengages power to the mower blades (Figure 5). change without notice. Note: Specifications and design are subject to Width Ignition Switch Use this switch to start the mower engine. It has 3 positions: START , RUN, and OFF. Motion-Control Levers Use the motion-control levers to drive the machine forward, reverse, and turn either direction. 60-inch Deck 72-inch Deck Without Deck 134.6 cm (53.
Operation the release of highly-flammable-propane liquid or vapor. Before Operation Before Operation Safety General Safety • Never allow children or untrained people to • • • • • • operate or service the machine. Local regulations may restrict the age of the operator. The owner is responsible for training all operators and mechanics. Become familiar with the safe operation of the equipment, operator controls, and safety signs. Know how to stop the machine and shut off the engine quickly.
• Before disconnecting the hoses, close the fuel DANGER valves on all of the tanks and allow the engine to run until it stops to purge all of the LPG vapors from the system. LPG vapors and liquid escaping from the tank may cause serious injury or death. Vapors or liquid may cause suffocation, freezing of tissue, or frostbite. • Store the tank(s) away from heat, sparks, or open flames. • Store and service the machine in a well-ventilated area.
DANGER LPG fuel is extremely flammable and vapors are explosive. • In case of fire, take the following steps: 1. If you can safely do so, stop the flow of gas as quickly as possible. Never put out the flame unless you can shut off the gas. 2. Notify the fire department and clear the immediate area of all people. 3. When the gas flow has stopped, put out the fire. Usually, when flow of gas is cut off, fire will automatically stop. g021497 4.
Using the Rollover Protection System (ROPS) 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. g021393 Figure 8 1. Cylinder brackets WARNING 3. Center hole There is no rollover protection when the roll bar is in the down position. 2. Mounting pin • Lower the roll bar only when absolutely necessary.
Think Safety First Please read all safety instructions and symbols in the safety section. Knowing this information could help you or bystanders avoid injury. DANGER Operating the machine on wet grass or steep slopes can cause sliding and loss of control. • Do not operate on slopes greater than 15 degrees. • Reduce speed and use extreme caution on slopes. • Do not operate the machine near water. DANGER Wheels dropping over edges can cause rollovers, which may result in serious injury, death, or drowning.
CAUTION This machine produces sound levels in excess of 85 dBA at the operator’s ear and can cause hearing loss through extended periods of exposure. Wear hearing protection when operating this machine. g013672 Figure 12 Use protective equipment for your eyes, ears, hands, feet, and head. 1. Triangles light up when the interlock components are in the correct position Testing the Safety-Interlock System Service Interval: Before each use or daily g009027 Figure 11 1. Wear eye protection.
Positioning the Seat Changing the Seat Suspension The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable. The seat adjusts to provide a smooth and comfortable ride. Position the seat where you are most comfortable. To adjust the seat, move the lever sideways to unlock the seat (Figure 13). To adjust, turn the knob in front either direction to provide the best comfort (Figure 15).
• Check carefully for overhead obstructions and do • Keep your hands and feet away from the cutting • • • • • • • • • • • • • • not contact them. units. Keep clear of the discharge opening at all times. Look behind and down before backing up to be sure of a clear path. Use care when approaching blind corners, shrubs, trees, or other objects that may obscure your vision. Do not mow near drop-offs, ditches, or embankments.
Disengaging the Parking Brake Operating the Throttle You can move the throttle control between the FAST and SLOW positions (Figure 20). Always use the FAST position when turning on the mower deck with the blade-control switch (PTO). g027335 Figure 17 g008946 Figure 20 Operating the Mower Blade-Control Switch (PTO) Operating the Ignition Switch The blade-control switch (PTO) starts and stops the mower blades and any powered attachments. 1.
Starting and Shutting Off the Engine Starting the Engine 1. Raise the roll bar up and lock it into place, sit on the seat, and fasten the seat belt (Figure 22). 2. Slowly open the fuel valve to equalize the pressure in the tank (Figure 22). Note: The fuel valve is located on the top end of the LPG tank. If the fuel valve is opened too quickly, the pressure-relief valve is equipped with a back pressure check valve that shuts off the fuel supply.
Using the Motion-Control Levers g027337 Figure 23 g004532 Figure 24 Important: Make sure that the fuel-shutoff valve is closed before transporting or storing the machine, as fuel leakage may occur. Engage the parking brake before transporting. Make sure that you remove the key as the fuel pump may run and cause the battery to lose charge. 1. Motion-control lever—NEUTRAL-LOCK position 4. Backward 2. Center, unlocked position 5. Front of machine 3.
Driving Forward CAUTION Note: The engine shuts off when you move the Machine can spin very rapidly. Operator may lose control of machine and cause personal injury or damage to machine. traction-control with the parking brake engaged. To stop, pull the motion-control levers to the NEUTRAL position. • Use caution when making turns. • Slow the machine down before making sharp turns. 1. Disengage the parking brake; refer to Disengaging the Parking Brake (page 25). 2.
Driving Backward Stopping the Machine 1. Move the levers to the center, unlocked position. 2. To go backward, slowly pull the motion-control levers rearward (Figure 26). To stop the machine, move the traction-control levers to neutral, and then move them to the locked position, disengage the blade-control switch (PTO), and turn the ignition key to the OFF position. Engage the parking brake when you leave the machine; refer to Engaging the Parking Brake (page 24).
Adjusting the Height of Cut Adjusting the Height-of-Cut Pin Using the Transport Lock The height-of-cut is adjusted from 25 to 140 mm (1 to 5-1/2 inches) in 6 mm (1/4 inch) increments by relocating the clevis pin into different hole locations. The transport lock has 2 positions, and is used with the deck-lift pedal. There is a LOCK position and a UNLOCK position for the transport position (Figure 27). 1. Move the transport lock to the lock position. 2.
Adjusting the Anti-Scalp Rollers Whenever you change the height-of-cut, it is recommended to adjust the height of the anti-scalp rollers. 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. g000944 Figure 31 Adjust the anti-scalp rollers as shown in Figure 29, Figure 30, and Figure 31. 1.
Position B Use this position when bagging. Always align it with the blower opening. g027727 Figure 32 Positioning the Flow Baffle The following figures are only recommendations for use. Adjustments vary by grass type, moisture content, and the height of the grass. g005833 Figure 34 Note: If the engine power draws down and the mower ground speed is the same, open up the baffle. Position C Position A This is the full open position.
Operating 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 in uncut grass.
Using the Drive-Wheel-Release Valves WARNING Hands may become entangled in the rotating drive components below the engine deck, which could result in serious injury. Shut off the engine, remove the key, and allow all moving parts to stop before accessing the drive-wheel-release valves. WARNING The engine and hydraulic drive units can become very hot. Touching a hot engine or hydraulic drive units can cause severe burns. g008957 Figure 36 1.
• Trailers must have appropriate markings to Important: Do not use narrow individual ramps transport LPG. for each side of the machine. • Follow NFPA 58 and state and local regulations for WARNING transporting LPG. 1. If using a trailer, connect it to the towing vehicle and connect the safety chains. 2. If applicable, connect the trailer brakes. 3. Load the machine onto the trailer or truck. 4. Shut off the engine, remove the key, set the brake, and close the fuel valve. 5.
g027996 Figure 39 1. Full-width ramp in stowed position 4. Ramp is at least 4 times as long as the height of the trailer or truck bed to the ground 2. Side view of full-width ramp in loading position 5. H=height of the trailer or truck bed to the ground 3. Not greater than 15 degrees 6.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Change the engine oil. After the first 100 hours • Check the wheel lug-nut torque. • Check the wheel-hub slotted-nut torque. • Check the parking brake adjustment. After the first 250 hours • Change the hydraulic filters and hydraulic fluid when using any type of fluid. Before each use or daily • • • • • • • • • Check the safety system. Check the engine-oil level.
CAUTION If you leave the key in the ignition switch, someone could start the engine and seriously injure you or other bystanders. Remove the key from the ignition before you do any maintenance. Pre-Maintenance Procedures • To ensure optimum performance and continued safety certification of the machine, use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty.
Lubrication Greasing the Mower Grease more frequently when operating conditions are extremely dusty or sandy. Service Interval: Yearly—Grease the pump-belt-idler arm. Yearly—Grease the front caster pivots (more often in dirty or dusty conditions). Yearly—Repack the front caster-wheel bearings (more often in dirty or dusty conditions). Grease Type: No. 2 general-purpose lithium or molybdenum grease 1. 2. 3.
5. Note: Keep the dust cap off until greasing is Lubricating the Caster-Wheel Hubs done. Service Interval: Yearly Remove the dust cap and adjust the caster pivots. 6. Remove the hex plug. 7. Thread a grease fitting into the hole. 8. Pump grease into the fitting until it oozes out around the top bearing. 9. Remove the grease fitting in the hole. 10. 1. Shut off the engine, wait for all moving parts to stop, remove the key, and engage the parking brake.
12. With the open end of the wheel facing up, fill the area inside the wheel around the axle full of general-purpose grease. 13. Insert the second bearing and new seal into the wheel. 14. 15. Engine Maintenance WARNING Contact with hot surfaces may cause personal injury. Apply a thread-locking adhesive to the second spacer nut, and thread it onto the axle with the wrench flats facing outward. Keep your hands, feet, face, clothing, and other body parts away the muffler and other hot surfaces.
g012996 Figure 45 1. Air-inlet cover 3. Air-cleaner body 2. Air-inlet screen 4. Latch g012997 Figure 46 6. 7. 8. 1. Inner filter 2. Primary filter Release the latches on the air cleaner and pull the air-cleaner cover off the air-cleaner body (Figure 46). 3. Air-cleaner cover Clean the inside of the air-cleaner cover with compressed air. 10. Gently slide the primary filter out of the air-cleaner body (Figure 46).
4. Note: Ensure that the primary filter is fully seated by pushing on the outer rim while installing it. Servicing the Engine Oil Important: Do not press on the soft, inside area of the filter. Oil Capacity: with a filter change—1.65 L (56 oz); without a filter change—1.50 L (51 oz) Install the air-cleaner cover and secure the latches (Figure 46). Viscosity: See the table below.
Changing the Engine Oil Service Interval: After the first 8 hours Every 100 hours (more often in dirty or dusty conditions). Note: Dispose of the used oil at a recycling center. 1. g021395 Start the engine and let it run for 5 minutes. Note: This warms the oil so that it drains better. g027659 Figure 48 44 2. Park the machine so that the rear is slightly lower than the front to ensure that the oil drains completely. 3.
5. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil to bring it to the Full mark (Figure 50). g021395 g027660 Figure 50 g027734 Figure 49 45 6. Start the engine and drive to a flat area. 7. Check the oil level again.
Changing the Engine-Oil Filter Service Interval: Every 200 hours Note: Change the engine-oil filter more frequently when operating conditions are extremely dusty or sandy. 1. Drain the oil from the engine; refer to Changing the Engine Oil (page 44). 2. Change the engine-oil filter (Figure 51). g021395 g032755 Figure 51 Note: Ensure the oil-filter gasket touches the engine, and then turn the oil filter an extra 3/4 turn. 3.
Servicing the Spark Plug Service Interval: Every 200 hours—Check, clean and regap the spark plug. Ensure that the air gap between the center and side electrodes is correct before installing the spark plug. Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap. Install a new spark plug(s) if necessary. g021397 Type : Champion® XC12YC, or equivalent Air Gap: 0.76 mm (0.030 inch) Removing the Spark Plug 1.
Checking the Spark Plug Fuel System Maintenance Important: Replace the spark plug(s) when it has: a black coating, worn electrodes, an oily film, cracks or reuse is questionable. Inspecting the LPG System If you see light brown or gray on the insulator, the engine is operating properly. A black coating on the insulator usually means that the air cleaner is dirty. Service Interval: Before each use or daily—Check the LPG tank and components. Every 40 hours—Check the LPG hoses, regulator, and connections.
3. Inspect the LPG tank and the fuel-connection joint for leaks. Use the following procedure below to detect leaks: Servicing the Electronic Fuel-Injection System A. This machine contains an electronic fuel-injection system. It controls the fuel flow under different operating conditions. Apply an approved leak detector solution, obtained from a trained and qualified LPG distributor, or a thick non-ammonia soapy water solution (50% non-ammonia soap and 50% water).
Removing the Battery Electrical System Maintenance WARNING Battery terminals or metal tools could short against metal machine components causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. • When removing or installing the battery, do not allow the battery terminals to touch any metal parts of the machine. • Do not allow metal tools to short between the battery terminals and metal parts of the machine.
Installing the Battery Note: Position the battery in the tray with the terminal posts opposite from the hydraulic tank (Figure 56). g000960 Figure 57 g032526 1. Positive battery post 3. Red (+) charger lead 2. Negative battery post 4. Black (-) charger lead Servicing the Fuses Figure 56 The electrical system is protected by fuses. It requires no maintenance, however, if a fuse blows check the component/circuit for a malfunction or short. Charging the Battery 1.
Jump-Starting the Machine 1. vent caps on both batteries. Also ensure that the machines do not touch and that both electrical systems are off and at the same rated system voltage. These instructions are for negative ground systems only. Check and clean corrosion from the battery terminals before jump-starting. Ensure that the connections are tight. 3. CAUTION Corrosion or loose connections can cause unwanted electrical voltage spikes at any time during the jump-starting procedure.
Drive System Maintenance Checking the Seat Belt Service Interval: Before each use or daily g021395 Inspect the seat belt for wear, cuts, and proper operation of retractor and buckle. Replace the seat belt if it is damaged. Checking the Rollover Protection System (ROPS) Knobs Service Interval: Before each use or daily g013117 Figure 60 1. Engine block 7. WARNING 2. Negative (–) cable To avoid injury or death from rollover: keep the roll bar in the fully raised locked position and use the seat belt.
6. Tighten the stop plate (Figure 62). g027424 Figure 62 Left control lever shown g021420 Figure 61 1. ROPS knob (locked position) 1. Control lever 3. Roll bar in the upright position 4. Roll bar in the folded 2. Pull the ROPS knob out, position and rotate it 90 degrees to change the roll bar position Checking the Tire Pressure Service Interval: Every 50 hours/Monthly (whichever comes first) Adjusting the Tracking 1. Disengage the blade-control switch (PTO). 2.
Checking the Wheel-Lug Nuts Adjusting the Caster-Pivot Bearings Check and torque the wheel lug nuts to 122 to 129 N∙m (90 to 95 ft-lb). Service Interval: Every 500 hours/Yearly (whichever comes first) Checking the Wheel-Hub Slotted Nut 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3.
Removing the Clutch Shim Using the Clutch Shim Some later model year units have been built with clutches that contain a brake shim. When the clutch brake has worn to the point where the clutch no longer engages consistently, the shim can be removed to extend the clutch life. 1. Shut off the engine, wait for all moving parts to stop, remove the key, engage the parking brake, and allow the machine to cool completely before starting these instructions. 2.
g010872 Figure 70 1. Feeler gauge g010870 Figure 68 1. Brake-mounting bolt B. Using needle-nose pliers, or by hand, hold the tab and remove the shim (Figure 69). Note: Do not discard the shim until proper clutch function has been confirmed. g010873 Figure 71 1. Feeler gauge • If the gap is less than 0.25 mm (0.01 inch), then install the shim; refer to Troubleshooting (page 76). g010871 • If the gap is sufficient, proceed to the Figure 69 safety check in step F. 1. Shim C. F.
Cleaning the Engine-Cooling Fins and Shrouds Cooling System Maintenance Cleaning the Engine Screen and Engine-Oil Cooler Service Interval: Every 100 hours/Yearly (whichever comes first) 1. 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. Remove the air-intake screen, the recoil starter, and the fan housing (Figure 73). 4.
Brake Maintenance Checking and Cleaning the Hydraulic-Unit Shrouds Adjusting the Parking Brake Service Interval: Before each use or daily 1. 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. Move the seat forward. 4. Clean the debris and grass from the hydraulic-unit shrouds (Figure 74). 5.
Belt Maintenance Inspecting the Belts Service Interval: Every 50 hours Check the belts for squealing when the belt is rotating; blades slipping when cutting grass; frayed belt edges; burn marks; and cracks, which are signs of a worn mower belt. Replace the mower belt if any of these conditions occur. Replacing the Mower Belt g026961 Figure 75 Left Side Shown 1. L-bracket 4. Rear linkage assembly 2. Linkage stop 5. Caliper 3. Gap 6. Wheel hub 9.
g027730 Figure 78 1. Position the belt cover 3. Ensure that the tab is under the metal catch 2. Slide the belt cover under the side catches g009038 Replacing the Hydraulic Pump-Drive Belt Figure 77 1. Clutch pulley 2. Mower belt 5. Square hole in the idler arm for the ratchet 6. Idler-grease fitting 3. Spring-loaded idler pulley 7. Belt guide 4. Ratchet 1. Disengage the blade-control switch (PTO) and engage the parking brake. 2.
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. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3.
4. 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. 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: The brake must be engaged and the motion-control levers must be out to start the engine. You do not need to be in the seat because of the jumper wire being used. 7.
Adjusting the Motion-Control Neutral-Lock Pivot the lever, allow the reverse-indicator springs to bring the levers back to neutral. Note: The wheels must stop turning or slightly creep in reverse. 11. Shut off the unit, remove the jumper wire from the wire harness, and plug the connector into the seat switch. 12. Remove the jack stands. 13. Raise the deck and install the height-of-cut pin. 1. Loosen the jam nut. 14. Check that the machine does not creep in neutral with the park brakes disengaged.
Hydraulic System Maintenance 8. Wipe the dipstick off and thread the dipstick into the reservoir. 9. Remove the dipstick and look at the end (Figure 85). Hydraulic System Safety Important: Do not overfill the hydraulic units with fluid as damage may occur. Do not run the machine with the fluid below the add mark. • Ensure that all hydraulic-fluid hoses and lines are in good condition and all hydraulic connections and fittings are tight before applying pressure to the hydraulic system.
Every 500 hours—Change the hydraulic filters and hydraulic fluid when using Toro® HYPR-OIL™ 500 hydraulic fluid (more often in dirty or dusty conditions). To replace the hydraulic fluid, the filters need to be removed. Replace both at the same time; refer to Servicing the Hydraulic System (page 65) for the fluid specifications. 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 2.
Mower Deck Maintenance Leveling the Mower Deck Setting up the Machine Note: Ensure that the mower deck is level before matching the height of cut (HOC). 1. Position the mower on a flat surface. 2. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 3. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 4. Check tire pressure of the drive tires. 5.
g009196 Figure 89 1. 7.6 cm (3 inch) at position A is correct 2. 8.3 cm (3-1/4 inch) at position B is correct 3. Measure here from the blade tip to the hard surface 4. Measure at position A and B on both sides g027345 Figure 91 1. Bolts at the bottom of the height-of-cut plate 12. 10. Fine-tune the adjustment nut on the front deck lift assembly by turning it (Figure 90). Note: To increase the height, turn the adjustment nut clockwise; to decrease, turn counterclockwise.
14. Torque the 2 bolts to 37 to 45 N∙m (27 to 33 ft-lb). 15. On both sides of the deck, measure from the level surface to the back tip of the blade (postion B) as shown in Figure 89. 16. Servicing the Cutting Blades Note: The measurement should read 8.3 cm (3-1/4 inches) To ensure a superior quality of cut, keep the blades sharp. For convenient sharpening and replacement, you may want to keep extra blades on hand. Fine tune the screw adjuster by turning it to get 8.
Checking for Bent Blades g006530 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Rotate the blades until the ends face forward and backward. 4. Measure from a level surface to the cutting edge, position A, of the blades (Figure 94). Figure 93 1. Cutting edge 3. Wear/slot forming 2.
Removing the Blades WARNING Blades must be replaced if a solid object is hit, if the blade is out of balance, or if the blade is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made by other manufacturers may result in nonconformance with safety standards. A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders.
Note: If the blade stays in a horizontal position, the blade is balanced and can be used. WARNING Deck-lift arm assemblies have stored energy. Removing the deck with out releasing the stored energy can cause serious injury or death. Note: If the blade is not balanced, file some metal off the end of the sail area only (Figure 97). Do not attempt to disassemble the deck from the front frame without locking out the stored energy. g000553 Figure 97 1. Blade 3. 2.
g009038 Figure 99 1. Clutch pulley 2. Mower belt 5. Square hole in the idler arm for the ratchet 6. Idler grease fitting 3. Spring-loaded idler pulley 7. Belt guide 4. Ratchet 7. Remove and retain the hardware on both sides of the deck as shown in Figure 100. g010252 Figure 100 1. Right stabilizer 2. Deck strut (right side shown) 3. Remove the shoulder bolt and nut. 4. Remove the shoulder bolt and nut. 73 8. Raise the deck struts and secure them in the raised position. 9.
Replacing the Grass Deflector Cleaning Cleaning under the Mower WARNING Service Interval: Before each use or daily An uncovered discharge opening could allow the lawn mower to throw objects at you or bystanders, resulting in serious injury. Also, contact with the blade could occur. Never operate the lawn mower unless you install a cover plate, mulch plate, grass deflector, or bagger. 1. Remove the locknut, bolt, spring, and spacer holding the deflector to the pivot brackets (Figure 101). 1.
Storage 16. Cleaning and Storing the Machine 1. Disengage the power takeoff (blade-control switch (PTO), engage the parking brake, and turn the ignition key to the OFF position. Remove the key. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine and hydraulic system. Clean dirt and chaff from the outside of the engine cylinder head fins and blower housing. Important: You can wash the machine with mild detergent and water.
Troubleshooting Problem The malfunction-indicator light (MIL) comes on. Possible Cause 1. The engine is too hot. 1. Shut off the engine and let it cool. 2. There is a faulty valve in the fuel tank. 3. The air cleaner is dirty. 2. Contact an Authorized Service Dealer. 3. Make sure that the air cleaner and precleaner are clean. Replace if necessary. 4. Charge or replace the battery. 5. Contact an Authorized Service Dealer. 4. The battery is not charged. 5.
Problem The mower pulls to the left or right (with levers fully forward) The machine does not drive. The machine vibrates abnormally. The machine produces an uneven cutting height. Possible Cause 1. The tracking needs adjustment 1. Adjust the tracking. 2. The tire pressure in the drive tires is not correct. 2. Adjust the tire pressure in the drive tires. 1. The bypass valves are not closed tight. 1. Tighten the bypass valves. 2. The pump belt is worn, loose, or broken. 3.
Schematics g021490 Wire Diagram (Rev.
Notes:
The Toro Warranty Landscape Contractor Equipment (LCE) A Limited Warranty (see warranty periods below) Riding Product Conditions and Products Covered 3. If for any reason you are dissatisfied with the Service Dealer’s analysis or with the assistance provided, contact us at: The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair the Toro Products listed below if defective in materials or workmanship.
