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Original Instructions (EN)
48in, 52in, or 60in Z Master
Professional 2000 Series Riding
Mower
Model No. 74490—Serial No. 400000000 and Up
Model No. 74491—Serial No. 400000000 and Up
Model No. 74492—Serial No. 400000000 and Up
Model No. 74493—Serial No. 400000000 and Up
Model No. 74494—Serial No. 400000000 and Up
Model No. 74495—Serial No. 400000000 and Up
Model No. 74496—Serial No. 400000000 and Up
Model No. 74497—Serial No. 400000000 and Up
Form No. 3437-336 Rev A
®
*3437-336* A
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Table of Contents
Related Manuals for Toro 74490
Summary of Contents for Toro 74490
- Page 1 48in, 52in, or 60in Z Master ® Professional 2000 Series Riding Mower Model No. 74490—Serial No. 400000000 and Up Model No. 74491—Serial No. 400000000 and Up Model No. 74492—Serial No. 400000000 and Up Model No. 74493—Serial No. 400000000 and Up Model No.
- Page 2 Use of this product may cause exposure Important: If you are using a machine with a Toro to chemicals known to the State of engine above 1500 m (5,000 ft) for a continuous California to cause cancer, birth defects, period, ensure that the High Altitude Kit has been or other reproductive harm.
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Page 3: Table Of Contents
Identifying the Engine ........40 Servicing a Kawasaki ® Engine ......40 Servicing a Toro Engine ........45 This manual uses 2 words to highlight information. Cleaning the Blower Housing......49 Important calls attention to special mechanical Cleaning the Cooling System......49 information and Note emphasizes general information Checking the Spark Arrester ...... - Page 4 Replacing the Emissions-Air Intake Filter.............. 50 Fuel System Maintenance ........50 Replacing the Fuel Filter ........50 Servicing the Fuel Tank........51 Electrical System Maintenance ......51 Electrical System Safety ........51 Servicing the Battery......... 51 Servicing the Fuses .......... 53 Drive System Maintenance ........
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Page 5: Safety
Safety This machine is capable of amputating hands and feet This machine has been designed in accordance with and of throwing objects. Toro designed and tested ANSI standard B71.4-2017. this lawn mower to offer reasonably safe service; however, failure to comply with safety instructions may result in injury or death. -
Page 6: Slope Indicator
Slope Indicator g011841 Figure 6 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. -
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 missing. decaloemmarkt Manufacturer's Mark decal106-5517 1. This mark indicates that the blade is identified as a part 106-5517 from the original machine manufacturer. - Page 8 decal109-6014 109-6014 1. Belt routing decal116-5610 116–5610 1. Hour meter 4. Neutral 2. Power take-off (PTO) 5. Operator presence switch 3. Parking brake 6. Battery decal112-3858 112-3858 1. Read the Operator's 3. Remove the key before Manual. adjusting the height of cut. 2.
- Page 9 decal126-4363 126-4363 1. Cutting/dismemberment hazard, fan and entanglement hazard, belt. Shut off the engine and remove the key before adjusting, servicing or cleaning the machine. decal117-1194 117-1194 1. Belt routing 2. Engine decal133-8062 133-8062 decal126-4784 126-4784 1. Height of cut decal117-3848 117-3848 1.
- Page 10 126-9939 1. Read the Operator’s 2. Fill to bottom of filler neck; Manual warning–do not overfill the tank Decal 131-1097 is for machines with Toro engines only. decal136-8992 136-8992 1. Fuel—full 3. Fuel—empty 2. Fuel—50% decal131-1097 131-1097 1. Oil drain...
- Page 11 decalptosymbols PTO Switch Symbols 1. PTO–disengage 2. PTO–engage decal126-6183 126-6183 1. Traction control 4. Neutral decaltransportlock 2. Fast 5. Reverse Transport Lock 3. Slow 1. Height of cut 2. Pull up to unlock the transport lock. decal137-9240 137-9240 1. Choke 3.
- Page 12 decal126-8151 126-8151 1. Read the instructions before servicing or performing 4. Refer to the Operator's Manual for grease instructions. maintenance on the machine. 2. Time interval 5. Check the hydraulic-fluid level and refer to the Operator's Manual for further instructions. 3.
- Page 13 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 the conditions on that day and at that site.
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Page 14: Product Overview
Controls Product Overview Become familiar with all the controls before you start the engine and operate the machine. Control Panel g227688 Figure 7 g271171 Figure 8 1. Height-of-cut deck-lift 7. Shock assembly 1. Position for optional power 5. Blade-control switch pedal (power takeoff) point... - Page 15 Hour Meter Fuel-Shutoff Valve The hour meter records the number of hours the Close the fuel-shutoff valve when transporting or engine has operated. It operates when the engine storing the machine; refer to Using the Fuel-Shutoff is running. Use these times for scheduling regular Valve (page 34).
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Page 16: Specifications
409 to 456 kg (901 to 1,006 lb) Attachments/Accessories 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 authorized Toro distributor or go to www.Toro.com for a list of all approved attachments and accessories. -
Page 17: Before Operation
Only use accessories and trailer. attachments approved by Toro. • • Do Not fill the fuel tank completely full. Inspect the area where the equipment is to be... -
Page 18: Adding Fuel
To help prevent fires: DANGER • Keep engine and engine area free from In certain conditions during fueling, static accumulation of grass, leaves, excessive grease electricity can be released causing a spark or oil, and other debris which can accumulate in which can ignite gasoline vapors. -
Page 19: Performing Daily Maintenance
Breaking in a New Machine the chance of varnish deposits in the fuel system, use fuel stabilizer at all times. New engines take time to develop full power. Mower decks and drive systems have higher friction when Filling the Fuel Tank new, placing additional load on the engine. -
Page 20: Using The Safety-Interlock System
Using the Safety-Interlock System WARNING If the safety-interlock switches are disconnected or damaged, the machine could operate unexpectedly, causing personal injury. • Do not tamper with the interlock switches. • Check the operation of the interlock switches daily and replace any damaged switches before operating the machine. -
Page 21: Positioning The Seat
Positioning the Seat 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 The seat can move forward and backward (Figure 13). Service Dealer repair the safety system immediately. Position the seat where you have the best control of the machine and are most comfortable. -
Page 22: Adjusting The Rear-Shock Assemblies
Adjusting the Rear-Shock Assemblies Machines with MyRide™ Suspension System Only The MyRide™ suspension system adjusts to provide a smooth and comfortable ride. You can adjust the rear 2-shock assemblies to quickly and easily change g227752 the suspension system. Position the suspension system where you are most comfortable. -
Page 23: Using Attachments And Accessories
Accessories Engine exhaust contains carbon monoxide, which is an odorless deadly poison that can Use only Toro approved attachments and accessories. kill you. If you add more than 1 accessory mount kit (i.e., Do Not run engine indoors or in a small... - Page 24 – Be alert and turn the machine off if children WARNING enter the area. Hands, feet, hair, clothing, or accessories – Before and while backing or changing direction, can become entangled in rotating parts. look behind, down, and side-to-side for small Contact with the rotating parts can children.
- Page 25 Remove or mark obstacles such as ditches, holes, • Any accessories, alterations, or attachments ruts, bumps, rocks or other hidden hazards. Tall added to the ROPS must be approved by Toro. grass can hide obstacles. Uneven terrain could overturn the machine. •...
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Page 26: Entering The Operator's Position
Entering the Operator’s Disengaging the Parking Brake Position Use the mower deck as a step to get into the operator’s position (Figure 19). g192635 g029797 Figure 21 Figure 19 1. Step here. Operating the Parking Brake Always engage the parking brake when you stop the machine or leave it unattended. -
Page 27: Operating The Mower Blade-Control Switch (Pto)
Operating the Mower Operating the Choke Blade-Control Switch (PTO) Use the choke to start a cold engine. Pull up the choke knob to engage the choke The blade-control switch (PTO) starts and stops the before using the key switch (Figure 25). -
Page 28: Starting The Engine
Starting the Engine Shutting Off the Engine Note: Note: A warm or hot engine may not require choking. Refer to Figure 41 to determine which engine you have. Important: Do not engage the starter for more than 5 seconds at a time. Engaging the starter CAUTION motor for more than 5 seconds can damage the starter motor. -
Page 29: Using The Motion-Control Levers
Shutting Off Toro Engines Using the Motion-Control Levers Note: Ensure the throttle is in the F position before shutting off the engine. c:\data\documentum\checkout\g004532 Figure 29 1. Motion-control 4. Backward g037049 lever—N EUTRAL LOCK Figure 28 position 2. Center, unlocked position 5. -
Page 30: Driving The Machine
Driving the Machine 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. -
Page 31: Using The Side Discharge
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. -
Page 32: Adjusting The Anti-Scalp Rollers
Adjusting the Anti-Scalp Select a hole in the height-of-cut bracket corresponding to the height-of-cut desired, and Rollers insert the pin (Figure 33). Push on the deck lift, pull up on the transport Whenever you change the height of cut, adjust the lock knob, and slowly lower the mower deck. -
Page 33: Operating Tips
It is best to cut only about a third of the grass blade. genuine Toro replacement blade. Cutting more than that is not recommended unless grass is sparse, or it is late fall when grass grows After Operation more slowly. -
Page 34: Using The Fuel-Shutoff Valve
Using the Fuel-Shutoff Using the Drive-Wheel Release Valves Valve Close the fuel-shutoff valve for transport, maintenance, WARNING and storage (Figure 35). Hands may become entangled in the rotating Ensure that the fuel-shutoff valve is open when drive components below the engine deck, starting the engine. -
Page 35: Transporting The Machine
Transporting the Machine 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. - Page 36 If using a trailer, connect it to the towing vehicle and connect the safety chains. If applicable, connect the trailer brakes and lights. Lower the ramp, ensuring that the angle between the ramp and the ground does not exceed 15 degrees (Figure 37).
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Page 37: Maintenance
Unauthorized WARNING modifications to the original equipment or failure to use original Toro parts could lead While maintenance or adjustments are being to serious injury or death. Unauthorized made, someone could start the engine. -
Page 38: Recommended Maintenance Schedule(S)
Every 100 hours • For Kawasaki engines—replace or clean and gap the spark plug. • For Toro engines—change the engine oil and oil filter (more often in dirty or dusty Every 100 hours or yearly, conditions). whichever comes first •... -
Page 39: Lubrication
Every 250 hours • For Toro engines—replace the air filter (more often in dirty or dusty conditions). • After the initial change—change the hydraulic-system filters and fluid when using Mobil 1 15W50 fluid. (Change it more often under dirty or dusty conditions) •... -
Page 40: Engine Maintenance
(more often in dirty or dusty Servicing a Kawasaki ® Engine (page 40). conditions). • For Toro engine maintenance, refer to Servicing a Every 250 hours—For Kawasaki Toro Engine (page 45). engines—check the safety air filter (more often in dirty or dusty conditions). - Page 41 Carefully slide the primary filter over the safety filter (Figure 43). Note: Ensure that the primary filter is fully seated by pushing on the outer rim while installing it. Important: Do not press on the soft, inside area of the filter. Install the air-cleaner cover and secure the latches (Figure...
- Page 42 Servicing the Engine Oil To keep dirt, grass clippings, etc., out of the engine, clean the area around the oil-fill cap and Service Interval: Before each use or daily dipstick before removing it (Figure 45). Every 100 hours (more often in dirty or dusty conditions).
- Page 43 Disengage the blade-control switch (PTO) and Slowly pour approximately 80% of the specified engage the parking brake. oil into the filler tube and slowly add the additional oil to bring it to the Full mark (Figure Shut off the engine, remove the key, and wait 47).
- Page 44 Servicing the Spark Plug(s) Service Interval: Every 100 hours 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 and a gapping tool or feeler gauge to check and adjust the air gap.
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Page 45: Servicing A Toro Engine
Servicing a Toro Engine This section is only for machines with Toro engines. If your engine looks like the one shown in Figure you have a Toro engine. g206628 Figure 50 Installing the Spark Plug(s) g296342 Figure 52 Servicing the Air Cleaner Service Interval: Every 250 hours—For Toro... - Page 46 Servicing the Engine Oil Service Interval: Before each use or daily—For Toro engines—check the engine-oil level. After the first 5 hours/After the first month (whichever comes first)—For Toro engines—change the engine oil and filter. Every 100 hours or yearly, whichever comes first—For Toro engines—change the engine...
- Page 47 g027799 g235263 Figure 55 Changing the Engine Oil and Oil Filter Park the machine on a level surface to ensure that the oil drains completely. 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.
- Page 48 Every 200 hours/Every 2 years (whichever Figure 57 comes first)—For Toro engines—replace the spark plug(s). Slowly pour approximately 80% of the specified Ensure that the air gap between the center and side oil into the filler tube and slowly add the electrodes is correct before installing the spark plug.
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Page 49: Cleaning The Blower Housing
Installing the Spark Plug(s) g036857 g027478 Figure 59 g027960 Figure 61 Checking the Spark Plug(s) Important: Do not clean the spark plug(s). Always replace the spark plug(s) when it has a Cleaning the Blower black coating, worn electrodes, an oily film, or cracks. -
Page 50: Checking The Spark Arrester
Checking the Spark Fuel System Arrester Maintenance For Machines with a Spark DANGER Arrester In certain conditions, fuel is extremely Service Interval: Every 50 hours flammable and highly explosive. A fire or explosion from fuel can burn you and others WARNING and can damage property. -
Page 51: Servicing The Fuel Tank
Electrical System Maintenance 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. - Page 52 Shut off the engine, remove the key, and wait Install the battery in the machine and connect for all moving parts to stop before leaving the the battery cables; refer to Installing the Battery operating position. (page 53). Remove the battery as shown in Figure Note: Do not run the machine with the battery...
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Page 53: Servicing The Fuses
Installing the Battery Servicing the Fuses Position the battery in the tray with the terminal The electrical system is protected by fuses. It requires posts opposite from the hydraulic tank (Figure no maintenance; however, if a fuse blows check the 63). -
Page 54: Drive System Maintenance
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 the retractor and buckle. Replace the seat belt if it is damaged. Checking the Roll-Bar Knobs Service Interval: Before each use or daily WARNING... -
Page 55: Adjusting The Tracking
Adjusting the Tracking Checking the Tire Pressure Disengage the blade-control switch (PTO). Service Interval: Every 50 hours/Monthly (whichever comes first) Drive to an open, flat area and move the motion-control levers to the N EUTRAL LOCK Maintain the air pressure in the front and rear tires position. -
Page 56: Cooling System Maintenance
Brake Maintenance Cooling System Maintenance Adjusting the Parking Brake Cleaning the Engine Screen Service Interval: Every 500 hours Service Interval: Before each use or daily Note: Perform this procedure whenever you remove Before each use or daily or replace a brake component. Before each use remove any buildup of grass, dirt, or Park the machine on a level surface, disengage other debris from the engine screen, engine exhaust,... - Page 57 Rotate the brake-linkage shaft until the end aligns with the hole in the lever. • Shorten the linkage by turning it clockwise. • Lengthen the linkage by turning it counterclockwise. Insert the brake-linkage shaft into the parking-brake hole and secure with the cotter pin.
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Page 58: Belt Maintenance
Figure 73 Remove the spring tension from the spring-loaded idler pulley; refer to Figure Note: Use the spring removal tool (Toro Part No. 92-5771) to remove the spring from the mower-deck post (Figure 75). Remove the belt from the mower-deck pulleys and the clutch pulley. -
Page 59: Replacing The Hydraulic Pump-Drive Belt
Install the belt covers (Figure 76). Remove the idler spring from the post (Figure 78). Remove the existing belt from the hydraulic-pump-drive pulleys and the engine pulley. Install the new belt around the engine pulley and the 2 hydraulic-pump pulleys (Figure 78). -
Page 60: Controls System Maintenance
Adjusting the Tilt Controls System Park the machine on a level surface, disengage Maintenance the blade-control switch (PTO), and engage the parking brake. Adjusting the Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the Control-Handle Position operating position. -
Page 61: Adjusting The Motion-Control Linkage
Adjusting the Adjust the pump-control-rod lengths by rotating the nut in the appropriate direction until the Motion-Control Linkage wheels slightly creep in reverse (Figure 81). Located on either side of the machine, below the seat, are the pump-control linkages. Rotating the end nut with a 1/2-inch deep socket wrench allows fine tuning adjustments so that the machine does not move in neutral. -
Page 62: Hydraulic System Maintenance
Hydraulic System Capacity (with filters removed): Every 500 hours—After the initial 4.45 L (150 fl oz) change—change the hydraulic-system filters and fluid when using Toro ® HYPR-OIL ™ 500 fluid. (Change it more often under dirty or Checking the Hydraulic... - Page 63 Shut off the engine, remove the key, and wait Install the filter guards over each filter that you for all moving parts to stop before leaving the previously removed. operating position. Use the 3 screws to secure the filter guards. Allow the engine to cool.
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Page 64: Bleeding The Hydraulic System
Start the engine, move the throttle control ahead to the 1/2 throttle position, and disengage the parking brake. Move the bypass levers into the pushing the machine position. With the bypass valves open and the engine running, slowly move the motion-control levers in both forward and reverse 5 or 6 times. -
Page 65: Mower Deck Maintenance
Mower Deck Maintenance Blade Safety 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 g006530 Figure 86 repair a damaged blade may result in discontinued safety certification of the product. - Page 66 g014973 g014973 Figure 88 Figure 90 1. Blade (in position for measuring) 1. Opposite blade edge (in position for measuring) 2. Level surface 2. Level surface 3. Measured distance between blade and the surface (A) 3. Second measured distance between blade and surface (B) Rotate the same blade 180 degrees so that If the difference between A and B is greater the opposing cutting edge is now in the same...
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Page 67: Adjusting The Side-To-Side Leveling And The Blade Slope
g000553 Figure 93 1. Blade 2. Balancer Repeat this procedure until the blade is balanced. Installing the Blades Install the blade onto the spindle shaft (Figure 91). Important: The curved part of the blade must point upward toward the inside of the mower to ensure proper cutting. - Page 68 Position the mower deck in the transport-lock Raise the deck to the transport position position. (12.7 cm or 5 inches). Carefully rotate the blades from side to side. Slowly loosen the adjusting screw on the lift-assist spring until you can remove the Measure between the blade tip and the flat screw (see Figure...
- Page 69 g038090 Figure 97 Bottom view 1. Block—7.3 cm (2.87 2. Welds inches) g035851 Figure 98 1. Locknuts 3. Deck hanger Block Height and Rake Table 2. Deck lift arm 4. Chain Deck Front Block Height Rake Size Ensure that the blocks fit snugly under the deck All mower 7.3 cm (2.87 inches) 4.8 to 6.4 mm (3/16 to 1/4...
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Page 70: Removing The Mower Deck
Removing the Mower Deck Replacing the Grass Deflector Before servicing or removing the mower deck, lock out the spring-loaded deck arms. WARNING Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the An uncovered discharge opening could allow parking brake. -
Page 71: Cleaning
Cleaning Cleaning under the Mower Deck Service Interval: Before each use or daily 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. -
Page 72: Storage
Storage Prepare the machine for storage when non-use occurs over 30 days. Prepare the machine for storage as follows: Storage Safety Add a petroleum-based stabilizer/conditioner to fuel in the • Shut off the engine, remove the key, wait for all tank. -
Page 73: Troubleshooting
Troubleshooting Problem Possible Cause Corrective Action The engine overheats. 1. The engine load is excessive. 1. Reduce the ground speed. 2. The oil level in the crankcase is low. 2. Add oil to the crankcase. 3. The cooling fins and air passages 3. - Page 74 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 75: Schematics
Schematics g018479 Wire Diagram—Toro Engines (Rev. A) - Page 76 g037072 Wire Diagram—Kawasaki Engines (Rev. A)
- Page 77 Notes:...
- Page 78 Notes:...
- Page 79 While the exposure from Toro products may be negligible or well within the “no significant risk” range, out of an abundance of caution, Toro has elected to provide the Prop 65 warnings. Moreover, if Toro does not provide these warnings, it could be sued by the State of California or by private parties seeking to enforce Prop 65 and subject to substantial penalties.
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