Table of Contents
Related Manuals for Toro 74990
Summary of Contents for Toro 74990
- Page 1 Form No. 3396-230 Rev D Z Master ® Commercial 3000 Series Riding Mower with 60in TURBO FORCE ® Side Discharge Mower Model No. 74990—Serial No. 315000001 and Up *3396-230* D Register at www.Toro.com. Original Instructions (EN)
- Page 2 Whenever you need service, genuine Toro parts, or ICES-002 additional information, contact an Authorized Service Dealer or Toro Customer Service and have the model Because in some areas there are local, state, or and serial numbers of your product ready.
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Page 3: Table Of Contents
Contents Servicing the Fuses .......... 48 Drive System Maintenance ........49 Checking the Seat Belt ........49 Safety ............... 4 Checking the Rollover Protection System Safe Operating Practices........4 (ROPS) Knobs ..........49 Slope Indicator ........... 7 Adjusting the Tracking ........50 Safety and Instructional Decals ...... -
Page 4: Safety
Safety properly. Do not operate unless they are functioning properly. Improper use or maintenance of the machine can Operation result in injury. To reduce the potential for injury, comply with these safety instructions and always • Lightning can cause severe injury or death. If pay attention to the safety alert symbol, which lightning is seen or thunder is heard in the area, do means Caution, Warning, or Danger—personal... - Page 5 Toro equipment, count • Never fill containers inside a vehicle or on a truck on Toro genuine parts. When it comes to reliability, or trailer bed with a plastic liner. Always place Toro delivers replacement parts designed to the containers on the ground away from your vehicle exact engineering specifications of our equipment.
- Page 6 Hauling • Use care when loading or unloading the machine into a trailer or truck. • Use full width ramps for loading machine into trailer or truck. • Tie the machine down securely using straps, chains, cable, or ropes. Both front and rear straps should be directed down and outward from the machine.
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Page 7: 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 8: 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. 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. - Page 9 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. decal114-4466 2. To avoid injury or death from a rollover accident, keep the 114-4466 roll bar in the raised and locked position and wear the seat belt.
- Page 10 decal115-9625 115-9625 1. Parking 2. Parking brake—engaged brake—disengaged decal116-1716 decal117-0346 116-1716 117-0346 1. Fuel 6. Hour meter 1. Fuel leak hazard—read the Operator's Manual; do not 2. Empty 7. PTO attempt to remove the roll bar; do not weld, drill or modify the roll bar in any way.
- Page 11 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 decal117-3864 performing any maintenance, check torque after first 100 117-3864 hours then every 500 hours thereafter. 1.
- Page 12 decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystanders a safe distance from the battery. 7. Wear eye protection; 2. No fire, open flame, or smoking. explosive gases can decal127-0326 127-0326 cause blindness and other injuries...
- Page 13 decal132-5067 132–5067 decal125-9383 125–9383 1. Check hydraulic oil every 50 operating hours. 3. Check the tire pressure every 50 operating hours. 2. Read the Operator’s Manual for information on lubricating 4. Read the Operator’s Manual before servicing or performing the machine. maintenance.
- Page 14 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.
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Page 15: Product Overview
Fuel Gauge Product Overview The fuel gauge is located with the hour meter, and the bars light up when the ignition switch is on (Figure The indicator light appears when the fuel level is low—approximately 3.8 L (1 US gallon) remaining in the fuel tank. -
Page 16: Specifications
A selection of Toro approved attachments and accessories is available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or Distributor or go to www.Toro.com for a list of all approved attachments and accessories. Specifications Note: Specifications and design are subject to change without notice. -
Page 17: Operation
Operation DANGER In certain conditions during fueling, static Note: Determine the left and right sides of the electricity can cause a spark which can ignite machine from the normal operating position. the gasoline vapors. A fire or explosion from gasoline can burn you and others and can Adding Fuel damage property. - Page 18 Filling the Fuel Tank chance of varnish deposits in the fuel system, use fuel stabilizer at all times. Park the machine on level ground. Shut the engine off and set the parking brake. Clean around the fuel-tank cap and remove it. Add regular unleaded gasoline to the fuel tank until the level is 6 to 13 mm (1/4 to 1/2 inch) below the bottom of the filler neck.
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Page 19: Checking The Engine-Oil Level
Checking the Engine-Oil Level Before you start the engine and use the machine, check the oil level in the engine crankcase; refer to Checking the Engine-Oil Level (page 41). Breaking in a New Machine New engines take time to develop full power. Mower decks and drive systems have higher friction when new, placing additional load on the engine. -
Page 20: Think Safety First
g029797 Figure 9 g000963 Figure 10 1. Mower deck 1. Safe Zone—use the 3. Water Z Master here on slopes less than 15 degrees or flat areas. Think Safety First 2. Danger Zone—use a walk-behind mower and/or Please read all safety instructions and symbols in the a hand trimmer on slopes greater than 15 degrees safety section. -
Page 21: Operating The Mower Blade-Control Switch (Pto)
Setting the Parking Brake WARNING Parking brake may not hold machine parked on a slope and could cause personal injury or property damage. Do not park on slopes unless wheels are g008945 Figure 14 chocked or blocked Disengaging the Blade-Control Switch (PTO) g029632 Figure 12... -
Page 22: Operating The Throttle
Operating the Throttle Operating the Ignition Switch The throttle control can be moved between Fast and Slow positions (Figure 16). Turn the ignition key to the Start position (Figure Always use the fast position when turning on the 18). When the engine starts, release the key. mower deck with the blade-control switch (PTO). -
Page 23: Starting And Stopping The Engine
Starting and Stopping the Engine Starting the Engine Raise the ROPS up and lock into place, sit on the seat and fasten the seat belt. Move the motion controls to neutral-locked position. Set the parking brake; refer to Setting the Parking Brake. -
Page 24: The Safety-Interlock System
Stopping the Engine The Safety-Interlock System CAUTION Children or bystanders may be injured if they CAUTION move or attempt to operate the machine while it is unattended. If safety-interlock switches are disconnected or damaged the machine could operate Always remove the ignition key and set the unexpectedly causing personal injury. -
Page 25: Driving Forward Or Backward
Using the Motion-Control levers 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. Sitting on the seat, engage the parking brake and move the blade-control switch (PTO) to on. -
Page 26: 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 off. Set the parking brake when you leave the machine; refer to Setting the Parking Brake (page 21). - Page 27 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 moving the clevis pin into different hole locations. Move the transport lock to the lock position. 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...
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Page 28: Adjusting The Anti-Scalp Rollers
g029956 Figure 29 1. Anti-scalp roller 3. Flange nut g029840 2. Bushing 4. Bolt Figure 27 1. Deck-lift pedal 3. Transport lock 2. Height-of-cut pin Adjusting the Anti-Scalp Rollers Whenever you change the height-of-cut, it is recommended to adjust the height of the anti-scalp rollers. -
Page 29: Positioning The Flow Baffle
Positioning the Flow Baffle Adjust the baffle and cam locks in the slots to the desired discharge flow. The following figures are only recommendations for Swing the lever back over to tighten the baffle use. Adjustments will vary by grass type, moisture and cam locks (Figure 31). -
Page 30: Positioning The Seat
Use to lower the engine power consumption. • Use to allow increased ground speed in heavy conditions. • This position offers benefits similar to those of the Toro SFS mower. g005833 Figure 33 g005834 Figure 34 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. -
Page 31: Unlatching The Seat
can be positioned anywhere in the slot, not just the detent positions. The following graphic shows the position for a soft or firm ride and the different detent positions (Figure 37). g008962 Figure 35 Unlatching the Seat g030065 Figure 37 1. -
Page 32: Using The Drive Wheel Release Valves
Adjust the rear, shock assemblies (Figure 38). To adjust the front, shock assembly, open the floor pan and adjust it by using a spanner wrench (Toro part no. 132–5069) or a slip-joint pliers (Figure 39). g030024 g030569 Figure 39 1. Middle position 3. -
Page 33: Using The Side Discharge
neutral-locked position and apply parking brake. DANGER Remove the key. Without a grass deflector, discharge cover, or Rotate the release valve levers vertically to push complete grass catcher assembly mounted in the machine. This allows hydraulic oil to by-pass place, you and others are exposed to blade the pump enabling the wheels to turn (Figure contact and thrown debris. -
Page 34: Transporting The Machine
Transporting the Machine Loading the Machine Use a heavy-duty trailer or truck to transport the Use extreme caution when loading or unloading machine. Ensure that the trailer or truck has all machines onto a trailer or a truck. Use a full-width necessary brakes, lighting, and marking as required ramp that is wider than the machine for this procedure. - Page 35 WARNING Loading a machine onto a trailer or truck increases the possibility of tip-over and could cause serious injury or death. • Use extreme caution when operating a machine on a ramp. • Ensure that the ROPS is in the up position and use the seat belt when loading or unloading the machine.
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Page 36: Operating Tips
This also helps disperse clippings which as necessary. If a blade is damaged or worn, replace it enhances decomposition and fertilization. immediately with a genuine TORO replacement blade. Mow at Correct Intervals Normally, mow every four days. But remember, grass grows at different rates at different times. -
Page 37: Maintenance
Every 500 hours • Adjust the caster pivot bearing. • Check the parking brake adjustment. • Change the hydraulic filters and hydraulic oil when using Toro® HYPR-OIL™ 500 hydraulic oil (more often in dirty or dusty conditions). • Check the battery. -
Page 38: 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 Lubricating the Mower Service Interval: Every 50 hours—Grease the mower Greasing and Lubrication deck spindles and idler arm. -
Page 39: Lubricating The Caster-Wheel Hubs
g006115 Figure 48 1. Seal guard 2. Spacer nut with wrench flats Raise the front of the machine up, and support it g009030 with jack stands (or equivalent support) just high Figure 46 enough to allow the front wheels to turn freely. Remove the caster wheel from the caster forks. -
Page 40: Engine Maintenance
Engine Maintenance Torque the nut to 8 to 9 N-m (75 to 80 in-lb), loosen it, then torque it to 2 to 3 N-m (20 to 25 in-lb). Make sure that the axle does not extend beyond either nut. WARNING Install the seal guards over the wheel hub and Contact with hot surfaces may cause personal insert the wheel into the caster fork. -
Page 41: Servicing The Engine Oil
Servicing the Engine Oil Oil Type: Detergent oil (API service SG, SH, SJ, or Crankcase Capacity: with a filter change, 2.1 L (2.2 US qt); without a filter change, 1.8 L (1.9 US qt) Viscosity: See the table below. g009031 Figure 49 1. - Page 42 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. g029644 Park the machine so that the rear is slightly lower than the front to ensure the oil drains completely.
- Page 43 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 53). g029644 g027660 Figure 53 Start the engine and drive to a flat area. Check the oil level again.
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Page 44: Servicing The Spark Plugs
Servicing the Spark Plugs Service Interval: Every 100 hours Make sure that the air gap between the center electrode and the side electrode is correct before installing each spark plug. Use a spark-plug wrench for removing and installing the spark plugs and a g029645 gapping tool/feeler gauge to check and adjust the air gap. -
Page 45: Checking The Spark Arrester (If Equipped)
Checking the Spark Plugs Installing the Spark Plugs Important: Never clean the spark plug(s). Always Tighten the spark plugs to 24.4 to 29.8 N-m (18 to replace the spark plug(s) when it has: a black 22 ft-lb). coating, worn electrodes, an oily film, or cracks. If you see light brown or gray on the insulator, the engine is operating properly. -
Page 46: 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 47: Electrical System Maintenance
Electrical System WARNING Incorrect battery cable routing could damage Maintenance the machine and cables causing sparks. Sparks can cause the battery gases to explode, resulting in personal injury. Servicing the Battery • Always disconnect the negative (black) Service Interval: Monthly battery cable before disconnecting the positive (red) cable. -
Page 48: Servicing The Fuses
important to prevent battery damage when the temperature is below 0°C (32°F). Charge battery for 10 to 15 minutes at 25 to 30 amps or 30 minutes at 10 amps. When the battery is fully charged, unplug the charger from the electrical outlet; then g029644 disconnect the charger leads from the battery posts... -
Page 49: 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) g008966 Figure 62 Knobs 4. -
Page 50: Adjusting The Tracking
Tighten the stop plate (Figure 64). g029647 Figure 64 Left control lever shown 1. Control lever 3. Stop plate 2. Bolt Checking the Tire Pressure Service Interval: Every 50 hours/Monthly (whichever comes first) g008943 Figure 63 Maintain the air pressure in the rear tires at 90 kPa (13 psi). -
Page 51: Checking The Wheel Lug Nuts
Checking the Wheel Lug Important: Make sure the spring washers are installed correctly as shown in Figure Nuts Install the dust cap (Figure 67). 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... - Page 52 Removing the Clutch Shim Note: Do not discard the shim until proper clutch function has been confirmed. Stop the engine, wait for all moving parts to stop, and remove the key. Engage the parking brake. Allow the machine to cool completely before starting these instructions.
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Page 53: Cooling System Maintenance
Cooling System • If the gap is less than 0.010 inch, then reinstall the shim and reference Maintenance Troubleshooting (page 71). • If the gap is sufficient, proceed to the safety check in step F. Cleaning the Engine Screen Perform the following safety check: and Engine-Oil Cooler Sit on the seat and start the engine. -
Page 54: Checking And Cleaning The Hydraulic Units
Checking and Cleaning the Hydraulic Units Service Interval: Before each use or daily Disengage the PTO and set the parking brake. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Move the seat forward. -
Page 55: Brake Maintenance
Brake Maintenance Adjusting the Parking Brake Service Interval: After the first 100 hours Every 500 hours thereafter Check to make sure the brake is adjusted properly before adjusting. Note: This procedure must be followed after the first 100 hours or when a brake component has been removed or replaced. -
Page 56: 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. These are signs of a worn mower belt; replace the mower belt if any of these conditions are evident. -
Page 57: Replacing The Hydraulic Pump-Drive Belt
Replacing the Hydraulic Pump-Drive Belt Disengage the PTO and set the parking brake. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Remove mower belt. Refer to Replacing the Mower Belt (page 56). -
Page 58: Controls System Maintenance
Controls System Remove the belt from the hydraulic unit drive pulleys and the engine pulley Maintenance Install the new belt around engine pulley and the two drive pulleys. Using a ratchet in the square hole in the idler Adjusting the Control arm, install the idler spring to the frame (Figure Handle Position... -
Page 59: Adjusting The Motion-Control Linkage
Start the engine. The brake must be engaged and motion-control levers out to start engine. You do not have to be in the seat because of the jumper wire being used. Run the engine at full throttle and release the brake. Run the unit at least 5 minutes with the drive levers at full forward speed to bring hydraulic oil up to operating temperature. -
Page 60: 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. Figure 85 for mounting options. g008621 Figure 86 1. Flanged nut 2. Jam nut g008620 Figure 85 Right-hand motion control shown 1. -
Page 61: 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: 1.5 L (1.59... - Page 62 Mobil ® 1 oil (more often in dirty or dusty conditions). Every 500 hours—Change the hydraulic filters and hydraulic oil when using Toro ® HYPR-OIL ™ 500 hydraulic oil (more often in dirty or dusty conditions).
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Page 63: Mower Deck Maintenance
Mower Deck Maintenance Leveling the Mower Deck Setting up the Machine Note: Ensure that the mower deck is leveled before matching the height of cut (HOC). Position the machine on a flat surface. Disengage the blade-control switch (PTO), move g029840 Figure 90 the motion-control levers to the neutral-locked position and set the parking brake. - Page 64 Note: To increase the height, turn the adjuster the length of the available travel in their slots. screw clockwise; to decrease the height, turn it This will regain some up-and-down adjustment counterclockwise. on each of the 4 deck links. g017036 g010251 Figure 94 Figure 92...
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Page 65: Servicing The Cutting Blades
3. Wear/slot forming damaged or worn, replace it immediately with a 2. Curved area 4. Crack genuine Toro replacement blade. For convenient sharpening and replacement, you may want to keep extra blades on hand. Checking for Bent Blades Disengage the blade-control switch (PTO), move... - Page 66 To ensure optimum 1. Sharpen at original angle performance and continued safety conformance of the machine, use genuine Toro replacement blades. Check the balance of the blade by putting it on Replacement blades made by other manufacturers...
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Page 67: Removing The Mower Deck
Removing the Mower Deck Before servicing or removing the mower deck, the spring-loaded deck arms must be locked out. WARNING Deck lift arm assemblies have stored energy. Removing the deck with out releasing the stored energy can cause serious injury or death. -
Page 68: Replacing The Grass Deflector
Raise the deck struts and secure them in the up position. Slide the deck out to the right side of the machine. Replacing the Grass Deflector WARNING Operating the machine with the engine running at a speed greater than the factory setting can cause the machine to throw a part of the blade or engine toward the operator or a bystander and result in serious personal... -
Page 69: Cleaning
Cleaning Important: The grass deflector must be able to rotate. Lift the deflector up to the full open position and ensure that it rotates into the full down position. Cleaning under the Mower Service Interval: Before each use or daily Disengage the blade-control switch (PTO), move the motion-control levers to the neutral-locked position and set the parking brake. -
Page 70: Storage
Storage Run the engine to distribute conditioned fuel through the fuel system (5 minutes). Stop the engine, allow it to cool, and drain Cleaning and Storage the fuel tank; refer to Servicing the Fuel Tank (page 46). Disengage the power take off (blade-control switch (PTO), set the parking brake, and turn the Restart the engine and run it until it stops. -
Page 71: 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 the disengaged position. 2. The parking brake is not on. 2. Set the parking brake. 3. - Page 72 Problem Possible Cause Corrective Action The machine does not drive. 1. The bypass valves are not closed tight. 1. Tighten the bypass valves. 2. The pump belt is worn, loose, or 2. Change the belt. broken. 3. The pump belt is off a pulley. 3.
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Page 73: Schematics
Schematics g009180 Wire Diagram (Rev. A) - Page 74 Notes:...
- Page 75 Notes:...
- Page 76 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.