Form No. 3417-811 Rev B Z Master® Professional 5000 Series Riding Mower with 60in or 72in TURBO FORCE® Side Discharge Mower Model No. 74933—Serial No. 401000000 and Up Model No. 74934—Serial No. 401000000 and Up Register at www.Toro.com.
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 professional, hired operators.
Contents This manual identifies potential hazards and has safety messages identified by the safety-alert symbol (Figure 2), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions. Safety ....................................................................... 4 General Safety ................................................... 4 Slope Indicator ................................................... 5 Safety and Instructional Decals ......................
Safety Servicing the Electronic Fuel-Injection System.......................................................... 47 Electrical System Maintenance ........................... 48 Electrical System Safety ................................... 48 Servicing the Battery......................................... 48 Servicing the Fuses .......................................... 49 Jump-Starting the Machine............................... 50 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.
decal110-2068 110-2068 1. Read the Operator's Manual. decal112-9028 112-9028 1. Warning—stay away from moving parts; keep all guards in place. decal107-3069 107-3069 1. Warning—there is no rollover protection when the roll bar is down. 2. To avoid injury or death from a rollover accident, keep the roll bar in the raised and locked position and wear the seat belt. Lower the roll bar only when absolutely necessary; do not wear the seat belt when the roll bar is down. 3.
decal116-8726 116-8726 1. Read the Operator’s Manual for the recommended hydraulic fluid. decal117-3848 117-3848 1. Thrown object hazard—keep bystanders a safe distance away from the machine. 2. Thrown object hazard, mower—do not operate the machine without the deflector, discharge cover, or grass collection system in place. 3. Cutting/dismemberment of hand or foot—stay away from moving parts; keep all guards and shields in place. decal119-6807 119-6807 1. Warning—no step decal117-0346 117-0346 1.
decal125-9383 125-9383 1. Check the 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. decal126-2055 126-2055 1. Wheel lug nut torque 129 N∙m (95 ft-lb) (4x) 2. Wheel hub nut torque 319 N∙m (235 ft-lb) 3.
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.
decal126-4553 126-4553 g224114 126-5641 1. PTO 4. Operator-presence switch 2. Parking brake 5. See user’s guide for operating condition code decal127-0326 127-0326 1. Read the Operator's Manual. 3. Neutral 2. Height of cut decal126-7875 126-7875 1. Fuse location 4. Auxiliary (15 A) 2. Relay location 5. Start relay 3. Main (20 A) 6. Not used decal131-4036 131-4036 1. Maximum drawbar pull 36 kg (80 lb) 2. Read the Operator's Manual. 11 3.
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 decal132-5992 1. Belt routing 132-5992 1. Press down on the pedal to lift the deck. decal137-9208 137-9208 1. Fast 4. Engine—stop 2. Slow 5. Engine—run 3. PTO 6.
Controls Product Overview Control Panel g232246 Figure 5 1. Blade-control switch (power takeoff) 3. Hour meter/Safety-interlock display 2. Throttle control 4. Key switch Hour Meter The hour meter records the number of hours the engine has operated. It operates when the engine is running. Use these times for scheduling regular maintenance (Figure 6). 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.
Fuel Gauge Safety Pressure-Relief Valve When the fuel-tank level is low, the LED status light flashes a red light and the fuel-level symbol on the screen flashes. The relief valve is located on the LPG-fuel tank (Figure 7). The safety pressure-relief valve relieves the excess pressure in the LPG tank. Refer to the Software Guide for more information. Important: This valve has a protective-plastic Safety-Interlock Indicators cap that should never be removed.
Specifications also result in permanent fuel-system damage and the release of highly-flammable-propane liquid or vapor. Note: Specifications and design are subject to change without notice. Width 60-inch Deck 72-inch Deck Without Deck 134.6 cm (53.0 inches) 150.1 cm (59.1 inches) Deflector Up 156.8 cm (61.7 inches) 187 cm (73.6 inches) Deflector Down 192.2 cm (75.7 inches) 222.4 cm (87.6 inches) 60-inch Deck 72-inch Deck Roll Bar - Up 211.1 cm (83.1 inches) 218.7 cm (86.
Operation • Do not change the tank(s) when the engine is Before Operation • Before disconnecting the hoses, close the fuel running. 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. Before Operation Safety • Store the tank(s) away from heat, sparks, or open flames. General Safety • Do not operate the machine without the entire exhaust system in place and in proper working condition.
Changing the LPG Tank DANGER 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 and service the machine in a well-ventilated area. • Install an approved LPG detector in trailers and storage areas. • LPG is heavier than air and may accumulate in low lying areas, such as ditches, drains, or pits. • Avoid breathing in vapors. • Keep LPG vapors and liquid away from vent valves.
Note: If the fuel valve is opened too quickly, WARNING the pressure-relief valve is equipped with a back pressure check valve that will shut off the fuel supply. If this happens, close the fuel valve completely and wait 5 seconds. Fuel system components are under high pressure. Using damaged or improper components can cause system failure, fuel leakage, and possible explosion, which may result in serious injury or death. 15. Check for leaks as described in Inspecting the LPG System (page 46).
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. 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. • Raise the roll bar as soon as clearance permits.
Testing the Safety-Interlock System Using the Safety-Interlock System Service Interval: Before each use or daily WARNING 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. If the safety-interlock switches are disconnected or damaged, the machine could operate unexpectedly, causing personal injury. 1.
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 (Figure 11). The seat is adjustable to provide a smooth and comfortable ride. Position the seat where you are most comfortable. To adjust it, turn the knob in front either direction to provide the best comfort (Figure 13). g019754 Figure 11 Unlatching the Seat To unlatch the seat, push the seat latch forward (Figure 12).
• Ensure that all drives are in neutral, the parking • • • • • • • • • • • • • • • • brake is engaged, and you are in the operating position before you start the engine. Keep your hands and feet away from the cutting 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.
Entering the Operator’s Position • Avoid starting, stopping, or turning the machine on slopes. Avoid making sudden changes in speed or direction; turn slowly and gradually. • Do not operate a machine under any conditions Use the mower deck as a step to get into the operator’s position (Figure 16). where traction, steering, or stability is in question. Be aware that operating the machine on wet grass, across slopes, or downhill may cause the machine to lose traction.
Disengaging the Parking Brake Operating the Throttle You can move the throttle control between FAST and SLOW positions (Figure 21). Always use the FAST position when engaging the PTO. g027335 Figure 18 g008946 Figure 21 Operating the Mower Blade-Control Switch (PTO) Starting the Engine The blade-control switch (PTO) starts and stops the mower blades and any powered attachments. Engaging the Blade-Control Switch (PTO) 1.
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 ignition key and engage the parking brake when leaving the machine unattended, even if just for a few minutes. g027421 g008947 Figure 22 g027337 Figure 23 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.
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).
Using the Side Discharge The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. 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. Contact with rotating mower blade(s) and thrown debris will cause injury or death. • Never remove the grass deflector from the mower deck because the grass deflector routes material down toward the turf.
2. Push on the deck-lift pedal with your foot, and raise the mower deck to the transport position (also the 140 mm (5-1/2 inch) cutting height position) as shown in Figure 28. 3. To adjust, rotate the pin 90 degrees and remove the pin from the height-of-cut bracket (Figure 28). 4. 5. Adjusting the Anti-Scalp Rollers Whenever you change the height-of-cut, adjust the height of the anti-scalp rollers.
g027727 Figure 32 g000944 Figure 31 1. Anti-scalp roller 4. Flange nut 2. Spacer 5. Bolt Positioning the Flow Baffle 3. Bushing The following figures are only recommendations for use. Adjustments vary by grass type, moisture content, and the height of the grass. Adjusting the Flow Baffle Cam Locks Note: If the engine power draws down and the mower ground speed is the same, open up the baffle. This procedure is applicable only to machines with the flow-baffle locks.
Position B Operating Tips Use this position when bagging. Always align it with the blower opening. 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. Always try to have 1 side of the mower deck free from uncut grass, which allows air to be drawn into the mower deck.
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.
2. 3. Transporting the Machine Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 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.
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 37). 4. Back the machine up the ramp (Figure 38). g028043 Figure 38 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 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 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. • Before repairing the machine do the following: Grease Type: No. 2 lithium or molybdenum grease Greasing the Machine – Disengage the drives. 1.
Greasing the Mower Deck 5. 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). 1. Note: Keep the dust cap off until greasing is done. Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. 2.
3. Raise the mower for access. 4. Remove the caster wheel from the caster forks. 5. Remove the seal guards from the wheel hub. 6. Remove a spacer nut from the axle assembly in the caster wheel. Engine Maintenance Engine Safety • Shut off the engine and remove the key before Note: Thread-locking adhesive has been checking the oil or adding oil to the crankcase. Keep your hands, feet, face, clothing, and other body parts away the muffler and other hot surfaces.
6. Release the latches on the air cleaner and pull the air-cleaner cover off the air-cleaner body (Figure 46). 7. Clean the inside of the air-cleaner cover with compressed air. 8. Gently slide the primary filter out of the air-cleaner body (Figure 46). outside of the filter. If the primary filter is dirty, bent, or damaged, replace it. Note: Holes in the filter appear as bright spots. Do not clean the primary filter.
Servicing the Engine Oil Oil Type: Detergent oil (API service SJ or higher) Oil Capacity: with a filter change—1.65 L (56 oz); without a filter change—1.50 L (51 oz) Viscosity: See the table below. g021395 g012991 Figure 47 Note: Use of synthetic oil having 5W-20 or 5W-30 rating is acceptable, up to 4°C (40°F). Note: Synthetic oils provide better starting in extreme cold below -23°C (-10°F).
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. Start the engine and let it run for 5 minutes. g021395 Note: This warms the oil so that it drains better. 2. Park the machine so that the rear is slightly lower than the front to ensure that the oil drains completely. 3.
5. Changing the Engine-Oil Filter 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). Service Interval: Every 200 hours Note: Change the engine-oil filter more frequently when operating conditions are extremely dusty or sandy. g027660 Figure 50 6. Start the engine and drive to a flat area. 7. Check the oil level again. 43 1. Drain the oil from the engine; refer to Changing the Engine Oil (page 42).
Servicing the Spark Plug Service Interval: Every 500 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. g021395 Type : Champion® XC12YC, or equivalent Air Gap: 0.76 mm (0.
Checking the Spark Plug Important: Replace the spark plug(s) when it has: a black coating, worn electrodes, an oily film, cracks or reuse is questionable. 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. g021397 Set the gap to 0.76 mm (0.030 inches). g027479 Figure 54 Installing the Spark Plug Tighten the spark plug(s) to 24.4 to 29.8 N-m (18 to 22 ft-lb). g009919 Figure 52 1.
Checking the Spark Arrester Fuel System Maintenance For Machines with a Spark Arrester Inspecting the LPG System Service Interval: Before each use or daily—Check the LPG tank and components. Every 40 hours—Check the LPG hoses, regulator, and connections. Service Interval: Every 50 hours WARNING Hot exhaust-system components may ignite fuel vapors even after you shut off the engine.
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).
Electrical System Maintenance 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Remove the battery as shown in Figure 56. Electrical System Safety • Disconnect the battery before repairing the machine. Disconnect the negative terminal first and the positive last. Connect the positive terminal first and the negative last. • Charge the battery in an open, well-ventilated area, away from sparks and flames.
Installing the Battery Charging the Battery Note: Position the battery in the tray with the terminal posts opposite from the hydraulic tank (Figure 56). WARNING Charging the battery produces gasses that can explode. Never smoke near the battery and keep sparks and flames away from the battery. Important: Always keep the battery fully charged (1.265 specific gravity). This is especially important to prevent battery damage when the temperature is below 0°C (32°F). 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 the 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 61 1. Engine block 7. WARNING 2.
6. Tighten the stop plate (Figure 63). g027424 Figure 63 Left control lever shown g021420 Figure 62 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 Bearing 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. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3.
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, you can remove the shim to extend the clutch life. 5. Verify that 12 V is present at the clutch connector when the blade-control switch (PTO) switch is engaged. 6. Measure the gap between the rotor and armature. If the gap is greater than 1 mm (0.04 inch), do the following steps: A.
Cooling System Maintenance sides of the brake pole as shown in Figure 71 and Figure 72. Note: Due to the way the rotor and the armature faces wear (peaks and valleys) it is sometimes difficult to measure the gap accurately. Cleaning the Engine Screen and Engine-Oil Cooler Service Interval: Before each use or daily Remove any buildup of grass, dirt, or other debris from the oil cooler and the engine screen (Figure 73). g010872 Figure 71 1. Feeler gauge g021395 g009191 Figure 73 g010873 Figure 72 1.
Cleaning the Engine-Cooling Fins and Shrouds Checking and Cleaning the Hydraulic-Unit Shrouds Service Interval: Before each use or daily Service Interval: Every 100 hours/Yearly (whichever comes first) 1. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. 1. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. 2. 2.
Brake Maintenance Adjusting the Parking Brake Service Interval: After the first 100 hours Every 500 hours thereafter Note: Perform this procedure at the recommended service interval or when a brake component has been removed or replaced. 1. 2. 3. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. g026961 Figure 76 Left Side Shown Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.
Belt Maintenance Inspecting the Belts Service Interval: Every 50 hours Replace the belt if it is worn. The signs of a worn belt include squealing while the belt is rotating; the blades slipping while cutting grass; and frayed edges, burn marks, and cracks on the belt. Replacing the Mower Belt 1. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. 2.
Replacing the Hydraulic Pump-Drive Belt 1. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Remove the mower belt; refer to Replacing the Mower Belt (page 58). 4. Raise the machine and support it with jack stands (Figure 80). g027730 Figure 79 1. Position the belt cover 3. Ensure that the tab is under the metal catch 2.
6. Unhook the idler spring from the frame (Figure 80). 7. Remove the belt from the hydraulic-unit-drive pulleys and the engine pulley. 8. Install the new belt around engine pulley and the 2 drive pulleys. 9. Using a ratchet in the square hole in the idler arm, install the idler spring to the frame (Figure 80). 10. 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.
4. Lower deck to the ground. 5. Raise the rear of machine up and support it with jack stands (or equivalent support). Note: Raise the machine just high enough to allow the drive wheels to turn freely. 6. 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. 7. Temporarily install a jumper wire across the terminals in the connector of the main wire harness. 8.
g008620 Figure 84 Right Motion Control Shown 1. Torque the locknut to 23 N∙m (17 ft-lb). The bolt must protrude past the end of the locknut after torquing. 2. Most resistance (firmest feel) 3. Damper 4. Medium resistance (medium feel) g014943 Figure 83 5. Least resistance (softest feel) 1. Double nuts 12.
Hydraulic System Maintenance 6. Remove 1 dipstick from the hydraulic reservoir (Figure 86). 7. Wipe the dipstick off and thread the dipstick into the reservoir. Hydraulic System Safety 8. Remove the dipstick and look at the end (Figure 86). • Seek immediate medical attention if fluid is injected Important: Do not overfill the hydraulic into skin. Injected fluid must be surgically removed within a few hours by a doctor. units with fluid, as damage may occur.
Replacing the Hydraulic Fluid and Filters Service Interval: After the first 250 hours—Change the hydraulic filters and hydraulic fluid when using any type of fluid. Every 250 hours—Change the hydraulic filters and hydraulic fluid when using Mobil® 1 fluid (more often in dirty or dusty conditions). 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).
Mower Deck Maintenance Note: The measurement should read 7.6 mm (3 inches) Leveling the Mower Deck Leveling the Deck 1. 2. 3. 4. 5. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Check the tire pressure in the drive tires; refer to Checking the Tire Pressure (page 52). Position the transport lock in the latching position.
11. Note: In most conditions, the back blade tip To adjust the single-point system, loosen the 2 bolts at the bottom of the height-of-cut plate (Figure 92). should be adjusted 6.4 mm (1/4 inch) higher than the front. 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 90. Note: The measurement should read 8.3 cm (3-1/4 inches) 16.
Servicing the Cutting Blades 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. Blade Safety g006530 Figure 94 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.
Removing the Blades Replace the blades if they hit a solid object, or if the blade is out of balance or bent. 1. Hold the blade end using a rag or thickly padded glove. 2. Remove the blade bolt, curved washer, and blade from the spindle shaft (Figure 96). g000553 Figure 98 1. Blade 3. 2. Balancer Repeat this procedure until the blade is balanced. Installing the Blades 1. Install the blade onto the spindle shaft (Figure 96).
Removing the Mower Deck Lock out the spring-loaded deck arms before servicing or removing the mower deck. WARNING Deck-lift arm assemblies have stored energy. Removing the deck with out releasing the stored energy can cause serious injury or death. Do not attempt to disassemble the deck from the front frame without locking out the stored energy. 1. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. 2.
8. Raise the deck struts and secure them in the raised position. 9. Slide the deck out to the right side of the machine. Replacing the Grass Deflector WARNING 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.
Cleaning Cleaning under the Mower Deck Service Interval: Before each use or daily 1. Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Raise the mower deck to the TRANSPORT position. Disposing of Waste Engine oil, batteries, hydraulic fluid, and engine coolant are pollutants to the environment.
Storage 11. Check the condition of the blades; refer to Inspecting the Blades (page 67). Storage Safety 12. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged. • Shut off the engine, remove the key, wait for all 13. Paint all scratched or bare metal surfaces. Paint is available from your Authorized Service Dealer. 14. Store the machine in a clean, dry garage or storage area. 15.
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.