Table of Contents
Related Manuals for Toro 74959
Summary of Contents for Toro 74959
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Page 1: Side Discharge
Form No. 3380-781 Rev A Z Master ® Commercial 3000 Series Riding Mower with 72in TURBO FORCE ® Side Discharge Mower Model No. 74959—Serial No. 314000001 and Up *3380-781* A Register at www.Toro.com. Original Instructions (EN) -
Page 2: Figure 1
State of product properly and safely. California to cause cancer, birth defects, You may contact Toro directly at www.Toro.com for product or other reproductive harm. and accessory information, help finding a dealer, or to register your product. -
Page 3: Table Of Contents
Servicing the Spark Plug ..........35 Check the Spark Arrester (if equipped) ......36 Fuel System Maintenance ...........37 Replacing the Fuel Filter..........37 Figure 2 Servicing the Fuel Tank ...........37 1. Safety alert symbol Electrical System Maintenance ........38 Servicing the Battery..........38 Servicing the Fuses ..........39 This manual uses 2 words to highlight information. -
Page 4: Safety
Operation Safety • Lightning can cause severe injury or death. If lightning is seen or thunder is heard in the area, do not operate Improper use or maintenance can result in injury. To reduce the machine; seek shelter. the potential for injury, comply with these safety instructions •... -
Page 5: Maintenance And Storage
• • Be certain that the seat belt can be released quickly in Let engine cool before storing and do not store near the event of an emergency. flame. • Check the area to be mowed where there are slopes, drop •... -
Page 6: Slope Indicator
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. -
Page 7: Safety And Instructional Decals
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 lost. 68-8340 1-403005 98-5954 103-2076 54-9220 58-6520 1. Grease 105-7798 116-2643 66-1340... - Page 8 110-2067 110-2068 1. Read the Operator's Manual. 107-2102 114-4466 1. Main, 25A 3. Charge, 25A 2. PTO, 10A 4. Auxiliary, 15A 109-7232 116-0205 1. Fast 3. Neutral 2. Slow 4. Reverse...
- Page 9 116-1716 1. Fuel 6. Hour meter 2. Empty 7. PTO 3. Half 8. Parking brake 4. Full 9. Neutral 5. Battery 10. Operator presence switch 115-7445 1. Grease pulleys and spindles 2. Maintenance interval—50 hours 116-3303 116-0752 1. Latch 2. Unlatch 116-4858 116-1654 116-5944...
- Page 10 Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystanders a safe distance from the battery. 2. No fire, open flame, or 7. Wear eye protection; smoking. explosive gases can cause blindness and other injuries 3.
- Page 11 125–9382 1. Read the Operator’s Manual for more information on servicing the machine. 116-0090 109-7069...
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Page 12: Product Overview
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 on (Figure 6). -
Page 13: Specifications
Weight: its capabilities. Contact your Authorized Service Dealer or Model Weight Distributor or go to www.Toro.com for a list of all approved attachments and accessories. 74959 588 kg (1296 lbs) -
Page 14: Operation
Operation DANGER In certain conditions during fueling, static Note: Determine the left and right sides of the machine electricity can be released causing a spark which from the normal operating position. can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can Adding Fuel damage property. -
Page 15: Checking The Engine Oil Level
Important: Lower the roll bar only when absolutely of varnish deposits in the fuel system, use fuel stabilizer at all times. necessary. Important: Ensure that the seat is secured to the Filling the Fuel Tank machine. 1. Shut the engine off and set the parking brake. 1. -
Page 16: Think Safety First
Important: Always use the seat belt with the roll CAUTION bar in the fully raised position. This machine produces sound levels in excess of 85 dBA at the operators ear and can cause hearing Think Safety First loss through extended periods of exposure. Please read all safety instructions and symbols in the safety Wear hearing protection when operating this section. -
Page 17: Operating The Mower Blade Control Switch (Pto)
Releasing the Parking Brake Operating the Throttle The throttle control can be moved between the Fast and Slow positions (Figure 14). Always use the fast position when turning on the mower deck with the blade control switch (PTO). G016995 Figure 11 G008946 Operating the Mower Blade Figure 14... -
Page 18: Using The Fuel Shut-Off Valve
Using the Fuel Shut-Off Valve The fuel shut-off valve is located under the seat. Move the seat forward to access it. Close the fuel shut-off valve for transport, maintenance, and storage. Ensure the fuel shut-off valve is open when starting the engine. -
Page 19: The Safety Interlock System
Stopping the Engine The Safety Interlock System CAUTION CAUTION Children or bystanders may be injured if they If safety interlock switches are disconnected or move or attempt to operate the machine while it is damaged the machine could operate unexpectedly unattended. -
Page 20: Driving Forward Or Backward
Using the Motion Control Levers 1. Sitting on the seat, engage the parking brake and move the blade control switch (PTO) to on. Try starting the engine; the engine should not crank. 2. Sitting on the seat, engage the parking brake and move the blade control switch (PTO) to off. -
Page 21: Stopping The Machine
Stopping the Machine To stop the machine, move the traction control levers to neutral and move to locked position, disengage the power take off (blade control switch (PTO), and turn the ignition key to the off position. Set the parking brake when you leave the machine; refer to Setting the Parking Brake (page 16). -
Page 22: Adjusting The Anti-Scalp Rollers
Adjusting the Height-of-Cut Pin 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. 1. Move the transport lock to the lock position. 2. -
Page 23: Adjusting The Flow Baffle Cam Locks
Adjusting the Flow Baffle Cam Locks This procedure is applicable only to machines with the flow baffle locks. Certain models will have nuts and bolts in-place of the flow baffle locks and can be adjusted the same. The mower discharge flow can be adjusted for different types of mowing conditions. -
Page 24: Positioning The Flow Baffle
Allows increased ground speed in heavy conditions. Note: If the engine power draws down and the mower • This position is similar to the benefits of the Toro SFS ground speed is the same, open up the baffle. mower. Position A This is the full rear position. -
Page 25: Using The Drive Wheel Release Valves
Using the Drive Wheel Release 4. Rotate the release valve levers horizontally to run the machine (Figure 34). Valves Using the Side Discharge WARNING The mower has a hinged grass deflector that disperses Hands may become entangled in the rotating drive clippings to the side and down toward the turf. -
Page 26: Transporting Machines
Transporting Machines WARNING Loading a unit onto a trailer or truck increases the Use a heavy-duty trailer or truck to transport the machine. possibility of backward tip-over and could cause Ensure that the trailer or truck has all necessary brakes, lighting, and marking as required by law. -
Page 27: Operating Tips
File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it Alternating Mowing Direction immediately with a genuine Toro replacement blade. Alternate mowing direction to keep the grass standing straight. This also helps disperse clippings, which enhances decomposition and fertilization. -
Page 28: Maintenance
• Adjust the caster pivot bearing. Every 500 hours • Check the park brake adjustment. • Change the hydraulic filters and hydraulic oil when using Toro® HYPR-OIL™ 500 hydraulic oil (more often in dirty or dusty conditions). • Replace the inner air filter. -
Page 29: Lubrication
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 do any maintenance. Lubrication Greasing the Mower Service Interval: Every 50 hours—Grease the mower deck Lubricating the Machine spindles and idler arm. -
Page 30: Lubricate The Caster Wheel Hubs
Lubricate the Caster Wheel Hubs Service Interval: Yearly 1. Stop the engine, wait for all moving parts to stop, and remove the key. Engage the parking brake. Figure 39 Figure 41 6. Remove the dust cap and adjust the caster pivots. 1. -
Page 31: Engine Maintenance
Engine Maintenance 13. Apply a thread locking adhesive to the second spacer nut and thread it onto the axle with the wrench flats facing outward. Servicing the Air Cleaner 14. Torque the nut to 8-9 N-m (75-80 in-lb), loosen, then re-torque to 2-3 N-m (20-25 in-lb). -
Page 32: Servicing The Engine Oil
If the filter is damaged, discard it. Oil Type: Detergent oil (API service SJ or higher) Oil Capacity for 74959 engine: with a filter change, 1.65 L Servicing the Primary Filter (56 oz); with no filter change, 1.5 L (51 oz) •... - Page 33 Checking the Engine-oil Level Service Interval: Before each use or daily Note: Check the oil when the engine is cold. WARNING G008804 Contact with hot surfaces may cause personal injury. Keep hands, feet, face, clothing, and other body parts away from the muffler and other hot surfaces. Important: Do not overfill the crankcase with oil because damage to the engine may result.
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Page 34: Changing The Engine Oil
Changing the Engine Oil 5. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil to Service Interval: After the first 8 hours bring it to the Full mark (Figure 47). Every 100 hours (more often in dirty or dusty conditions). -
Page 35: Servicing The Spark Plug
Removing the Spark Plug 1. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 2. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. G008804 3. -
Page 36: Check The Spark Arrester (If Equipped)
Check the Spark Arrester (if equipped) Service Interval: Every 50 hours WARNING G008803 Hot exhaust system components may ignite gasoline vapors even after the engine is stopped. Hot particles exhausted during engine operation may ignite flammable materials. Fire may result in personal injury or property damage. -
Page 37: Fuel System Maintenance
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). -
Page 38: Electrical System Maintenance
Electrical System WARNING Maintenance Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in Servicing the Battery personal injury. • Always Disconnect the negative (black) battery Service Interval: Monthly cable before disconnecting the positive (red) cable. -
Page 39: Servicing The Fuses
Installing the Battery 1. Position battery in the tray with the terminal posts opposite from the hydraulic tank (Figure 54). 2. First, install the positive (red) battery cable to positive (+) battery terminal. 3. Then install the negative (black) battery cable and ground wire to the negative (-) battery terminal. -
Page 40: Drive System Maintenance
Drive System Maintenance Checking the Seat Belt Service Interval: Before each use or daily Visually inspect seat belt for wear, cuts, and proper operation of retractor and buckle. Replace before operating if 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... -
Page 41: Checking The Tire Pressure
Checking the Wheel Lug Nuts Check and torque the wheel lug nuts to 122-129 N-m (90-95 ft-lb). Checking the Wheel Hub Slotted Nut Service Interval: After the first 100 hours Every 500 hours Check and ensure that the torque of the slotted nut is 286 to 352 N-m (211 to 260 ft-lb). -
Page 42: Using The Clutch Shim
Removing the Clutch Shim 4. Tighten the locknut until the spring washers are flat and then back off a 1/4 turn to properly set the pre-load on 1. Stop the engine, wait for all moving parts to stop, and the bearings (Figure 61). remove the key. - Page 43 F. Perform the following safety check: i. Sit on the seat and start the engine. ii. Make sure the blades Do not engage with the PTO switch “off ” and the clutch disengaged. If the clutch does not disengage, install the shim, and reference the Troubleshooting (page 60) section.
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Page 44: Cooling System Maintenance
Cooling System Maintenance Cleaning the Engine Screen and Engine Oil Cooler Service Interval: Before each use or daily Remove any build-up of grass, dirt, or other debris from the oil cooler (Figure 68). G008804 Figure 69 1. Engine guard 4. Fan housing 2. -
Page 45: Check And Clean The Hydraulic Units
Check and Clean the Hydraulic Brake Maintenance Units Adjusting the Parking Brake Service Interval: Before each use or daily 1. Disengage the PTO and set the parking brake. Service Interval: After the first 100 hours 2. Stop the engine, remove the key, and wait for all moving Every 500 hours thereafter parts to stop before leaving the operating position. -
Page 46: Belt Maintenance
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 are signs of a worn mower belt. Replace the mower belt if any of these conditions are evident. -
Page 47: Replacing The Hydraulic Pump Drive Belt
Figure 74 1. Position the belt cover 3. Ensure the tab is under the metal catch 2. Slide belt cover under the side catches Replacing the Hydraulic Pump Figure 73 Drive Belt 1. Clutch pulley 5. Square hole in the idler arm for the ratchet 1. -
Page 48: Controls System Maintenance
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 PTO, move the motion control levers to the neutral locked position, and set the parking brake. -
Page 49: Adjusting The Motion Control Linkage
engine. The operator does not have to be in the seat because of the jumper wire being used. Run the engine at full throttle and release the brake. 6. Run the machine at least 5 minutes with the motion-control levers at full forward speed to bring the hydraulic oil up to operating temperature. -
Page 50: Adjusting The Motion-Control Damper
Adjusting the Motion-control Damper The top damper-mounting bolt can be adjusted to obtain a more desired motion-control lever resistance. See Figure 79 for mounting options. Figure 80 1. Flanged nut 2. Jam nut Figure 79 RH Motion Control Shown 1. Torque the lock nut to 23 N-m (17 ft-lb). The bolt must protrude past the end of the locknut after torquing. -
Page 51: Hydraulic System Maintenance
Hydraulic System Maintenance Servicing the Hydraulic System Hydraulic Oil Type: Toro ® HYPR-OIL ™ 500 hydraulic oil or Mobil ® 1 15W-50. Important: Use oil specified. Other fluids could cause system damage. Each Hydraulic System Oil Capacity: 52 ounces (1.5 l) per... - Page 52 Every 500 hours—Change the hydraulic filters and ® ™ hydraulic oil when using Toro HYPR-OIL hydraulic oil (more often in dirty or dusty conditions). To replace the hydraulic oil, the filters need to be removed. Replace both at the same time; refer to Servicing the Hydraulic System (page 51) for the oil specifications.
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Page 53: Mower Deck Maintenance
Mower Deck Maintenance Leveling the Mower Deck Setting Up the Machine Note: Ensure the mower deck is leveled before matching the height-of-cut (HOC). 1. Position mower on a flat surface. 2. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake. -
Page 54: Servicing The Cutting Blades
Check the cutter blades daily for sharpness, and for any wear or damage. File down any nicks and sharpen the 1. Bolts at the bottom of the height-of-cut plate blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine Toro replacement blade. For... -
Page 55: Inspecting The Blades
convenient sharpening and replacement, you may want to keep extra blades on hand. DANGER A worn or damaged blade can break, and a piece of the blade could be thrown into the operator's or bystander's area, resulting in serious personal injury or death. -
Page 56: Removing The Blades
Blades must be replaced if a solid object is hit, if the blade is out of balance or is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made Figure 93 by other manufacturers may result in non-conformance with 1. -
Page 57: Removing The Mower Deck
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. -
Page 58: Replacing The Grass Deflector
Cleaning 9. Slide the deck out to the right side of the machine. Replacing the Grass Deflector Cleaning Under the Mower WARNING Service Interval: Before each use or daily 1. Disengage the blade control switch (PTO), move the An uncovered discharge opening could allow the motion control levers to the neutral locked position, lawn mower to throw objects in the operator's or and set the parking brake. -
Page 59: Storage
Storage C. Stop the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank (page 37) in the Maintenance Section. Cleaning and Storage D. Restart the engine and run it until it stops. 1. Disengage the power take off (blade control switch E. -
Page 60: Troubleshooting
Troubleshooting Problem Possible Cause Corrective Action The starter does not crank. 1. The blade control switch (PTO) is 1. Move the blade control switch (PTO) engaged. to disengaged. 2. The parking brake is not on. 2. Set the parking brake. 3. - Page 61 Problem Possible Cause Corrective Action The machine does not drive. 1. The by pass valves is not closed tight. 1. Tighten the by pass valves. 2. The pump belt is worn, loose or broken. 2. Change the belt. 3. The pump belt is off a pulley. 3.
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Page 62: Schematics
Schematics G020788 Electrical Schematic (Rev. A) - Page 63 Notes:...
- Page 64 Customers who have purchased Toro products outside the United States or Canada should contact their Toro Distributor (Dealer) to obtain guarantee policies for your country, province, or state. If for any reason you are dissatisfied with your Distributor's service or have difficulty obtaining guarantee information, contact the Toro importer. If all other remedies fail, you may contact us at Toro Warranty Company.