Form No. 3411-264 Rev B Z Master® Commercial 3000 Series Riding Mower with 52in or 72in TURBO FORCE® Side Discharge Mower Model No. 74955—Serial No. 400000000 and Up Model No. 74959—Serial No. 400000000 and Up Register at www.Toro.com.
This spark ignition system complies with Canadian ICES-002 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.
Contents Safety ....................................................................... 4 General Safety ................................................... 4 Slope Indicator ................................................... 5 Safety and Instructional Decals .......................... 6 Product Overview ................................................... 13 Controls ........................................................... 13 Specifications ..................................................
Safety Servicing the Engine Oil.................................... 40 Servicing the Spark Plug................................... 43 Checking the Spark Arrester ............................. 44 Fuel System Maintenance ................................... 45 Replacing the Fuel Filter ................................... 45 Servicing the Fuel Tank..................................... 45 Electrical System Maintenance ........................... 46 Electrical System Safety ...................................
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 58-6520 decal106-2655 1. Grease 106-2655 1. Warning-do not touch or approach moving belts; remove the ignition key and read the instructions before servicing or performing maintenance. decal93-7818 93-7818 1.
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.
decal116-5988 116-5988 1. Parking brake—engaged 2. Parking brake—disengaged decal116-8726 116-8726 decal136-5508 136-5508 1. Read the Operator’s Manual for the recommended hyraulic fluid. 1. Belt routing decal116-1716 116-1716 1. Fuel 2. Empty 6. Hour meter 7. PTO 3. Half 8. Parking brake 4. Full 5. Battery 9. Neutral 10. Operator-presence switch decal117-0346 117-0346 1.
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. decal117-3864 117-3864 decal121-7551 1. Read the Operator’s Manual. 121-7551 2. Fill to bottom of filler neck; warning—do not overfill the tank. 1.
decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery decal126-4398 126-4398 1. Explosion hazard 6. Keep bystanders a safe distance away from the battery. 2. No fire, open flame, or smoking 7. Wear eye protection; explosive gases can cause blindness and other injuries. 3. 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. 3. Unlock 1.
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.
Hour Meter Product Overview 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). Fuel Gauge The fuel gauge is located with the hour meter, and the bars light up when the ignition switch is in the ON position (Figure 6). The indicator light appears when the fuel level is low (approximately 1 gallon remaining in the fuel tank).
Choke Control Specifications Use the choke to start a cold engine. Pull the choke knob up to engage it. Push the choke knob down to disengage it (Figure 5). Note: Specifications and design are subject to change without notice. Width Blade-Control Switch (Power Takeoff) The blade-control switch (PTO) engages and disengages power to the mower blades (Figure 5).
Operation containers on the ground, away from your vehicle before filling. • Remove the equipment from the truck or trailer Note: Determine the left and right sides of the 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. machine from the normal operating position. Before Operation • Do not operate the machine without the entire exhaust system in place and in proper working condition.
Using Stabilizer/Conditioner Use a fuel stabilizer/conditioner in the machine to provide the following benefits: • Keeps fuel fresh during storage of 90 days or less (drain the fuel tank when storing the machine for more than 90 days) • Cleans the engine while it runs • Eliminates gum-like varnish buildup in the fuel system, which causes hard starting Important: Do not use fuel additives containing methanol or ethanol. Add the correct amount of fuel stabilizer/conditioner to the fuel.
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.
Think Safety First 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. Please read all safety instructions and symbols in the safety section. Knowing this information could help you or bystanders avoid injury. DANGER Wear hearing protection when operating this machine. Operating the machine on wet grass or steep slopes can cause sliding and loss of control.
to the NEUTRAL-LOCK position. Try starting the engine; the engine should not start. Positioning the Seat The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable. To adjust the seat, move the lever sideways to unlock the seat (Figure 12). g009181 Figure 11 1.
Changing the Seat Suspension • Keep your hands and feet away from the cutting • The seat adjusts to provide a smooth and comfortable ride. Position the seat where you are most comfortable. • To adjust, turn the knob in front either direction to provide the best comfort (Figure 14). • • • • • g019768 Figure 14 1.
Disengaging the Parking Brake • Keep the roll bar in safe operating condition by thoroughly inspecting it periodically for damage and keeping all the mounting fasteners tight. • Replace a damaged roll bar. Do not repair or alter it. Slope Safety • Slow down the machine and use extra care on hillsides. Travel up and down on hillsides. Turf conditions can affect the stability of the machine. • Avoid turning the machine on slopes.
Operating the Mower Blade-Control Switch (PTO) The blade-control switch (PTO) starts and stops the mower blades and any powered attachments. Engaging the Blade-Control Switch (PTO) g008946 Figure 19 Note: Engaging the blade-control switch (PTO) with the throttle position at half or less causes excessive wear to the drive belts. Operating the Choke Use the choke to start a cold engine. g008945 Figure 17 1. If the engine is cold, use the choke to start the engine. 2.
Operating the Ignition Switch 1. Turn the ignition key to the START position (Figure 21). Note: When the engines starts, release the key. Important: Do not engage starter for more than 5 seconds at a time. If the engine fails to start allow a 15 second cool-down period between attempts. Failure to follow these instructions can burn out the starter motor. Note: You may need multiple attempts to start the engine when you start it the first time after the fuel system has been without fuel completely.
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 stops when you move the traction-control with the parking brake engaged. Machine can spin very rapidly. Operator may lose control of machine and cause personal injury or damage to machine. 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 21). 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 21).
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.
After Operation After Operation Safety General Safety • Clean grass and debris from the cutting units, mufflers, and engine compartment to help prevent fires. Clean up oil or fuel spills. • Shut off the fuel before storing or transporting the machine. • Disengage the drive to the attachment whenever g008948 you are transporting or not using the machine. Figure 36 • Use full-width ramps for loading the machine into 1. On position a trailer or truck. 2.
2. Rotate the release-valve levers vertically to push the machine. This allows hydraulic fluid to bypass the pump, enabling the wheels to turn (Figure 37). 3. Disengage the parking brake before pushing the machine. 5. Use the tie-down loops on the machine to securely fasten it to the trailer or truck with straps, chains, cable, or ropes (Figure 38). g027338 Figure 38 g015123 1. Traction unit tie-down loops Figure 37 1. Vertical to push the machine 4. 2.
Loading the Machine Use extreme caution when loading or unloading machines onto a trailer or a truck. Use a full-width ramp that is wider than the machine for this procedure. Back up the ramp and drive forward down the ramp (Figure 39). g028043 Figure 39 1. Back the machine up the ramp. 2. Drive the machine forward down the ramp. Important: Do not use narrow individual ramps for each side of the machine.
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 accidently start the engine and seriously injure you or other bystanders. Remove the key from the ignition before you perform any maintenance. Pre-Maintenance Procedures 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. Maintenance and Storage • Check the parking brake operation frequently.
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-based or molybdenum-based 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 46 1. Air-inlet cover 3. Air-cleaner body 2. Air-inlet screen 4. Latch g012997 Figure 47 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 47). 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 47).
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 47). 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. g008804 Start the engine and let it run for 5 minutes. Note: This warms the oil so that it drains better. 2. 3. 4. Park the machine so that the rear is slightly lower than the front to ensure that the oil drains completely.
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 51). g008804 g027660 Figure 51 6. Start the engine and drive to a flat area. 7. Check the oil level again. Changing the Engine-Oil Filter g027477 Figure 52 Service Interval: Every 200 hours Note: Change the engine-oil filter more frequently when operating conditions are extremely dusty or sandy. 1. 2.
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. g009922 Type : Champion® XC12YC, or equivalent Air Gap: 0.76 mm (0.030 inch) Removing the Spark Plug 1.
5. Installing the Spark Plug Install the left hydraulic-unit shroud (Figure 53). Tighten the spark plug(s) to 24.4 to 29.8 N-m (18 to 22 ft-lb). 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. Set the gap to 0.76 mm (0.030 inches).
Servicing the Fuel Tank Fuel System Maintenance Do not attempt to drain the fuel tank. Ensure that an Authorized Service Dealer drains the fuel tank and services any components of the fuel system. Replacing the Fuel Filter Service Interval: Every 500 hours/Yearly (whichever comes first) (more often in dirty or dusty conditions). The fuel filter is located near the engine on the front or rear side of the engine. 1.
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 58). g000960 Figure 60 g032526 1. Positive battery post 3. Red (+) charger lead 2. Negative battery post 4. Black (-) charger lead Servicing the Fuses Figure 59 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.
Drive System Maintenance Checking the Seat Belt Service Interval: Before each use or daily 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 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.
right T-slot until the machine tracks straight (Figure 63). 6. Tighten the stop plate (Figure 63). g001055 Figure 64 Checking the Wheel-Lug Nuts Check and torque the wheel lug nuts to 122 to 129 N∙m (90 to 95 ft-lb). Checking the Wheel-Hub Slotted Nut Service Interval: After the first 100 hours g010153 Figure 63 Left control lever shown 1. Control lever Every 500 hours Check and ensure that the torque of the slotted nut is 286 to 352 N∙m (211 to 260 ft-lb). 3. Stop plate 2.
g001297 Figure 66 1. Spring washers 3. Dust cap 2. Lock nut g024121 Figure 65 1. Slotted nut 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. Adjusting the Caster-Pivot Bearing Service Interval: Every 500 hours/Yearly (whichever comes first) 1.
Removing the Clutch Shim 1. 2. B. 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. Using needle-nose pliers, or by hand, hold the tab and remove the shim (Figure 70). Note: Do not discard the shim until proper clutch function has been confirmed. Using an air compressor, blow out any debris from under the brake pole and around the brake spacers (Figure 68).
Cooling System Maintenance Cleaning the Engine Screen and Engine-Oil Cooler Service Interval: Before each use or daily g010873 Remove any buildup of grass, dirt, or other debris from the oil cooler (Figure 73). Figure 72 1. Feeler gauge • If the gap is less than 0.25 mm (0.01 inch), then install the shim; refer to Troubleshooting (page 71). • If the gap is sufficient, proceed to the safety check in step F. F. g008804 Perform the following safety check: i. Sit on the seat and start the engine. ii.
Checking and Cleaning the Hydraulic-Unit Shrouds 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 75). 5. Position the seat. g004218 Figure 74 1. Engine guard 4. Fan housing 2. Engine air-intake screen 5.
Brake Maintenance Adjusting the Parking Brake Service Interval: After the first 100 hours Every 500 hours thereafter Note: This procedure must be followed after the first 100 hours or when a brake component has been removed or replaced. 1. Drive the machine onto 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. Shut off the engine, wait for all moving parts to stop, and remove the key. 1.
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 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 2.
g027730 Figure 79 g009039 1. Position the belt cover 3. Ensure that the tab is under the metal catch Figure 80 2. Slide the belt cover under the side catches 1. Idler pulley 5. Left hydraulic-pump pulley 2. Clutch pulley 6. Square hole in the idler arm 7. Idler spring 3. Pump-drive belt 4. Right hydraulic-pump pulley Replacing the Hydraulic Pump-Drive Belt 5. Use a ratchet in the square hole in the idler arm to remove the idler spring (Figure 80). 6.
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. 5. 6. Remove the electrical connection from the seat safety switch, located under the bottom cushion of the seat. the lever, allow the reverse-indicator springs to bring the levers back to neutral. Note: The switch is a part of the seat assembly. creep in reverse. Note: The wheels must stop turning or slightly Temporarily install a jumper wire across the terminals in the connector of the main wire harness. Start the engine and run it at full throttle and disengage the brake.
1. Loosen the jam nut. 2. Tighten or loosen the flanged nut to the desired feel. Hydraulic System Maintenance • For more resistance, tighten the flanged nut. 3. • For less resistance, loosen the flanged nut Hydraulic System Safety Tighten the jam nut. • 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.
8. Wipe the dipstick off and thread the dipstick into the reservoir. 9. Remove the dipstick and look at the end (Figure 86). WARNING Hydraulic fluid escaping under pressure can penetrate skin and cause injury. • If hydraulic fluid is injected into the skin it must be surgically removed within a few hours by a doctor familiar with this type of injury. Gangrene may result if this is not done. Important: Do not overfill the hydraulic units with oil as damage may occur.
g008970 1. Jack stands Remove both the mower belt and the pump-drive belt; refer to Replacing the Mower Belt (page 55) and Replacing the Hydraulic Pump-Drive Belt (page 56). Note: This prevents oil from getting on the belts. 5. Place a drain pan under the filter, remove the old filter, and wipe the surface clean (Figure 88). g008968 Figure 88 Bottom view of the machine 1. Filter locations 6. Install the replacement hydraulic filter. 8. Install the pump-drive belt and the mower belt. 9.
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 90 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 g027344 10. Figure 91 Fine-tune the adjustment nut on the front deck lift assembly by turning it (Figure 91). Note: To increase the height, turn the adjustment nut clockwise; to decrease, turn counterclockwise. 1. Adjustment nut 3. Rear deck adjustment 2. Jam nut 4.
Servicing the Cutting Blades 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. 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.
Inspecting the Blades Checking for Bent Blades Service Interval: Before each use or daily 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 1. Inspect the cutting edges (Figure 94). 2. If the edges are not sharp or have nicks, remove and sharpen the blade; refer to Sharpening the Blades (page 66). 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.
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 98 1. Blade 3. 2.
8. 9. Raise the deck struts and secure them in the raised position. 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 position and ensure that it rotates into the full down position. Cleaning under the Mower Service Interval: Before each use or daily 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and set 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 to the transport position.
Storage Note: A fuel stabilizer/conditioner is most effective when mixed with fresh fuel and used at all times. Cleaning and Storage 1. 2. Disengage the power takeoff (blade-control switch (PTO), engage the parking brake, and turn the ignition key to the OFF position. Remove the key. 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.
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 the disengaged position. 2. The parking brake is disengaged. 3. The motion-control 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.
Problem The machine does not drive. The machine vibrates abnormally. The machine produces an uneven cutting height. Possible Cause 1. The bypass valves are not closed tight. 1. Tighten the bypass valves. 2. The pump belt is worn, loose, or broken. 3. The pump belt is off a pulley. 4. The idler spring is broken or missing. 5. The hydraulic-fluid level is low or too hot. 2. Change the belt. 1. Install new cutting blade(s). 2. The blade mounting bolt is loose. 3. The engine mounting bolts are loose. 4.
Schematics g020788 Electrical Schematic (Rev.
Notes:
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.
