Toro 74904 Operator's Manual
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Toro 74904 Operator's Manual

Toro 74904 Operator's Manual

With 48in turbo force side discharge mower
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Original Instructions (EN)
Z Master
®
Series Riding Mower
with 48in TURBO FORCE
Mower
Model No. 74904—Serial No. 316000001 and Up
Form No. 3400-922 Rev A
Professional 5000
®

Side Discharge

g027403
*3400-922* A

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Summary of Contents for Toro 74904

  • Page 1: Side Discharge

    Form No. 3400-922 Rev A Z Master ® Professional 5000 Series Riding Mower with 48in TURBO FORCE ® Side Discharge Mower Model No. 74904—Serial No. 316000001 and Up g027403 *3400-922* A Register at www.Toro.com. Original Instructions (EN)

  • Page 2: Figure 1

    California to cause cancer, birth defects, product properly and safely. or other reproductive harm. You may contact Toro directly at www.Toro.com for product This spark ignition system complies with Canadian ICES-002. safety and operation training materials, accessory information, help finding a dealer, or to register your product.

  • Page 3: Table Of Contents

    Contents Safety ................4 Figure 2 Safe Operating Practices........... 4 Toro Mower Safety ..........6 1. Safety-alert symbol Slope Indicator ............8 Safety and Instructional Decals ......... 9 This manual uses 2 words to highlight information. Product Overview ............15 Important calls attention to special mechanical information Controls ...............15...

  • Page 4: Safety

    Operator’s Replacing the Mower Belt ........51 Manual . Modifications to this machine should only be Replacing the Hydraulic Pump-Drive Belt ....53 made by either the manufacturer or an Authorized Toro Controls System Maintenance ........53 Dealer. Adjusting the Control-Handle Position......53 This product is capable of amputating hands and feet.
  • Page 5 Preparation • Keep pets and bystanders away from an operating machine. • Evaluate the terrain to determine what accessories and • attachments are needed to properly and safely perform Slow down and use caution when making turns and the job. crossing roads and sidewalks.

  • Page 6: Maintenance And Storage

    Note: These can change the stability of the machine. Toro Mower Safety • Keep all movement on slopes slow and gradual. The following list contains safety information specific to Toro • Do not make sudden changes in speed or direction. products and other safety information you must know.
  • Page 7 Check their proper operation regularly. • To ensure optimum performance and continued safety certification of the machine, use only 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.

  • Page 8: 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 9: 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. 58-6520 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 10 110-2068 1. Read the Operator's Manual. 114-4466 1. Main, 25 A 3. Charge, 25 A 2. PTO, 10 A 4. Auxiliary, 15 A 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.
  • Page 11 116-1716 1. Fuel 6. Hour meter 2. Empty 7. PTO 3. Half 8. Parking brake 4. Full 9. Neutral 5. Battery 10. Operator-presence switch 117-0346 1. Fuel leak hazard—read the Operator's Manual; do not attempt to remove the roll bar; do not weld, drill or modify 116-4858 the roll bar in any way.
  • Page 12 117-3864 1. Read the Operator’s 2. Fill to bottom of filler neck; Manual. warning—do not overfill the tank. 126-4398 1. Read the Operator’s 3. Unlock manual. 2. Lock 121-7586 1. Fast 3. Slow 2. Variable-speed control 4. Power takeoff (PTO) 126-2055 1.
  • Page 13 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 8.
  • Page 14 132-0871 1. Warning—read the Operator’s Manual; do not operate the 4. Ramp hazard—when loading onto a trailer, do not use dual machine unless you are trained; wear hearing protection. ramps; only use a singular ramp wide enough for the machine and that has an incline less than 15 degrees;...

  • Page 15: Hour Meter

    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 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 The indicator light appears when the fuel level is low...

  • Page 16: Ignition Switch

    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 the first time after adding fuel to an empty fuel system. G008946 Figure 7 Blade-Control Switch (PTO) The blade-control switch (PTO) is used to engage the electric clutch and drive the mower blades.

  • Page 17: Specifications

    Height its capabilities. Contact your Authorized Service Dealer or Roll Bar—Up Roll Bar—Down Distributor or go to www.Toro.com for a list of all approved attachments and accessories. 179.1 cm (70.5 118.9 cm (46.8 inches) inches)

  • Page 18: 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 19: Checking The Engine-Oil Level

    Checking the Engine-Oil Level of varnish deposits in the fuel system, use fuel stabilizer at all times. Before you start the engine and use the machine, check the oil level in the engine crankcase; refer to Checking the Filling the Fuel Tank Engine-Oil Level (page 38).

  • Page 20: Think Safety First

    Think Safety First Please read all safety instructions and symbols in the safety section. Knowing this information could help you or bystanders avoid injury. DANGER Operating the machine on wet grass or steep slopes can cause sliding and loss of control. •...

  • Page 21: Operating The Parking Brake

    Releasing the Parking Brake CAUTION This machine produces sound levels in excess of 85 dBA at the operators ear and can cause hearing loss through extended periods of exposure. Wear hearing protection when operating this machine. g027335 Figure 17 G009027 Figure 15 1.

  • Page 22: Starting And Stopping The Engine

    Starting and Stopping the Engine Starting the Engine 1. Raise the ROPS up and lock into place, sit on the seat, and fasten the seat belt. 2. Move the motion controls to N position. EUTRAL G008947 3. Set the parking brake; refer to Setting the Parking Figure 19 Brake (page...

  • Page 23: Using The Safety-Interlock System

    Testing the Safety-Interlock System Important: Ensure that the fuel-shutoff valve is closed before transporting or storing the machine, as fuel Service Interval: Before each use or daily leakage may occur. Set the parking brake before transporting. Make sure to remove the key as the fuel Test the safety-interlock system before you use the machine pump may run and cause the battery to lose charge.
  • Page 24 Using the Motion-Control Levers G008952 Figure 23 Driving Backward Figure 22 1. Motion-control lever 4. Backward 1. Move the levers to the center, unlocked position. position) EUTRAL 2. To go backward, slowly pull the motion-control levers 2. Center, unlocked position 5.

  • Page 25: Stopping The Machine

    Stopping the Machine To stop the machine, move the traction-control levers to neutral, and then move them to the L position, OCKED disengage the power takeoff (blade-control switch (PTO), and turn the ignition key to the O position. Set the parking brake when you leave the machine; refer to Setting the Parking Brake (page 21).

  • Page 26: Adjusting The Anti-Scalp Rollers

    Adjusting the Height-of-Cut Pin 3. Adjust the anti-scalp rollers as shown in Figure Figure 28, and Figure 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.

  • Page 27: Adjusting The Flow-Baffle-Cam Locks

    Figure 30 Figure 29 1. Anti-scalp roller 4. Flange nut 2. Spacer 5. Bolt Positioning the Flow Baffle 3. Bushing The following figures are only recommendations for use. Adjustments vary by grass type, moisture content, and the height of the grass. Adjusting the Flow-Baffle-Cam Note: If the engine power draws down and the mower Locks...

  • Page 28: Positioning The Seat

    Allows increased ground speed in heavy conditions 1. Seat latch 2. Seat • This position is similar to the benefits of the Toro SFS mower Changing the Seat Suspension The seat adjusts to provide a smooth and comfortable ride. Position the seat where you are most comfortable.

  • Page 29: Using The Drive-Wheel-Release Valves

    Using the Drive-Wheel-Release Valves WARNING Hands may become entangled in the rotating drive components below the engine deck, which could result in serious injury. Shut off the engine, remove the key, and allow all moving parts to stop before accessing the drive-wheel-release valves.

  • Page 30: Using The Side Discharge

    Using the Side Discharge Transporting the Machine The mower has a hinged grass deflector that disperses Use a heavy-duty trailer or truck to transport the machine. clippings to the side and down toward the turf. Ensure that the trailer or truck has all the necessary brakes, lighting, and marking as required by law.

  • Page 31: Loading The Machine

    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 ramps and drive forward down ramps (Figure 39). g028043 Figure 39 1.

  • Page 32: Operating Tips

    Alternate mowing direction to keep the grass standing blades as necessary. If a blade is damaged or worn, replace it straight. This also helps disperse clippings which enhances immediately with a genuine Toro replacement blade. decomposition and fertilization. Mowing at Correct Intervals Grass grows at different rates at different times.

  • Page 33: Maintenance

    • Adjust the caster-pivot bearing. Every 500 hours • Check the parking brake adjustment. • Change the hydraulic filters and hydraulic fluid when using Toro® HYPR-OIL™ 500 hydraulic fluid (more often in dirty or dusty conditions). • Replace the inner air filter.

  • Page 34: 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 Greasing and Lubrication spindles and the idler arm.

  • Page 35: Lubricating The Caster-Wheel Hubs

    Lubricating the Caster-Wheel Hubs Service Interval: Yearly 1. Shut off the engine, wait for all moving parts to stop, remove the key, and engage the parking brake. Figure 43 Figure 45 6. Remove the dust cap and adjust the caster pivots. 1.

  • Page 36: Engine Maintenance

    Engine Maintenance 14. 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 15. Torque the nut to 8 to 9 N-m (75 to 80 in-lb), loosen, then torque to 2 to 3 N-m (20 to 25 in-lb).
  • Page 37 Important: Never attempt to clean the inner filter. Important: Do not press on the soft inside area If the safety filter is dirty, then the primary filter is of the filter. damaged; replace both filters. 4. Install the air cleaner cover and secure the latches (Figure 47).

  • Page 38: Servicing The Engine Oil

    Servicing the Engine Oil Oil Type: Detergent oil (API service SF, SG, SH, SJ, or SL) Crankcase Capacity: with a filter change, 2.1 L (71 oz); without a filter change, 1.8 L (61 oz) Viscosity: See the table below. G008804 Figure 48 Note: Use of multi-grade oils (5W-20, 10W-30, or 10W-40) will increase oil consumption.

  • Page 39: 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 51). Every 100 hours (more often in dirty or dusty conditions).

  • Page 40: Servicing The Spark Plugs

    Changing the Engine-Oil Filter Make sure that the air gap between the center and side electrodes is correct before installing the spark plugs. Use a Service Interval: Every 200 hours spark-plug wrench for removing and installing the spark plugs and a gapping tool/feeler gauge to check and adjust the air Note: Change the engine-oil filter more frequently when gap.

  • Page 41: Checking The Spark Plugs

    4. Remove the spark plugs. G008803 g027478 Figure 56 Figure 54 5. Install the left hydraulic-unit shroud (Figure 53). Checking the Spark Plugs Important: Replace the spark plugs when they have a black coating, worn electrodes, an oily film, cracks, or if reuse is questionable.

  • Page 42: Checking The Spark Arrester

    Checking the Spark Arrester Fuel System Maintenance For a Model with a Spark Arrester Service Interval: Every 50 hours WARNING Fuel system components are under high pressure. WARNING The use of improper components can result in Hot exhaust system components may ignite system failure, gasoline leakage, and possible gasoline vapors even after the engine is stopped.

  • Page 43: Servicing The High-Pressure Fuel Filter

    Electrical System Maintenance Servicing the Battery Service Interval: Monthly DANGER Battery electrolyte contains sulfuric acid, which is a deadly poison and causes severe burns. Do not drink electrolyte and avoid contact with skin, eyes, or clothing. Wear safety glasses to shield your G008963 eyes and wear rubber gloves to protect your hands.

  • Page 44: Installing The Battery

    Installing the Battery Note: Position battery in the tray with the terminal posts opposite from the hydraulic tank (Figure 59). Figure 59 Figure 58 Charging the Battery WARNING Charging the battery produces gasses that can explode. Never smoke near the battery and keep sparks and flames away from battery.

  • Page 45: Servicing The Fuses

    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 the seat belt before operating the machine if the belt is damaged. Checking the Figure 60 Rollover-Protection System...

  • Page 46: Adjusting The Tracking

    Figure 63 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 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 47: Adjusting The Caster-Pivot Bearing

    Adjusting the Caster-Pivot Bearing Service Interval: Every 500 hours/Yearly (whichever comes first) 1. Disengage the blade-control switch (PTO), move the motion-control levers to the N position, EUTRAL 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.
  • Page 48 match after you remove the shim to ensure the proper brake torque. Figure 70 1. Feeler gauge Figure 68 1. Brake-mounting bolt B. Using needle-nose pliers, or by hand, hold the tab and remove the shim. Note: Do not discard the shim until you have confirmed that the clutch is functioning properly.

  • Page 49: Cooling System Maintenance

    Cooling System Maintenance Cleaning the Engine Screen and Engine-Oil Cooler Service Interval: Before each use or daily Remove any buildup of grass, dirt, or other debris from the oil cooler (Figure 72). G008804 Figure 73 1. Engine guard 4. Fan housing 2.

  • Page 50: Checking And Cleaning The Hydraulic-Unit Shrouds

    Checking and Cleaning the Brake Maintenance Hydraulic-Unit Shrouds 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. Shut off the engine, remove the key, and wait for all Every 500 hours thereafter moving parts to stop before leaving the operating Note: Follow this procedure after you remove or replace a...

  • Page 51: Belt Maintenance

    Belt Maintenance Inspecting the Belts Service Interval: Every 50 hours Check the belts for squealing when the belt is rotating; the blades are 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.
  • Page 52 Figure 78 Figure 77 1. Clutch pulley 5. Square hole in the idler arm for the ratchet 2. Mower belt 6. Idler-grease fitting 3. Spring-loaded idler pulley 7. Belt guide 4. Ratchet 10. Install the belt guide on the idler arm (Figure 77).

  • Page 53: Replacing The Hydraulic Pump-Drive Belt

    Replacing the Hydraulic Controls System Pump-Drive Belt Maintenance 1. Disengage the PTO and set the parking brake. 2. Shut off the engine, remove the key, and wait for all Adjusting the Control-Handle moving parts to stop before leaving the operating Position position.

  • Page 54: Adjusting The Motion-Control Linkage

    5. Temporarily install a jumper wire across the terminals in the connector of the main wiring harness. 6. Start the engine and run it at full throttle and release the brake. Note: The brake must be engaged and the motion-control levers must be out to start the engine.

  • Page 55: Adjusting The Motion-Control Damper

    Adjusting the Motion Control 14. Check that the machine does not creep in neutral with the park brakes disengaged. Neutral-Lock Pivot Adjusting the Motion-Control You can adjust the flanged nut to obtain a more desired motion-control lever resistance when moving it to the Damper position.

  • Page 56: Hydraulic System Maintenance

    Hydraulic System Maintenance Servicing the Hydraulic System Hydraulic Fluid Type: Toro ® HYPR-OIL ™ 500 hydraulic fluid or Mobil ® 1 15W-50. Important: Use the specified fluid. Other fluids could cause system damage. Each Hydraulic System Fluid Capacity: 1.5 L (52 oz) per...
  • Page 57 Every 500 hours—Change the hydraulic filters and ® ™ hydraulic fluid when using Toro HYPR-OIL 500 hydraulic fluid (more often in dirty or dusty conditions). To replace the hydraulic fluid, the filters need to be removed.

  • Page 58: 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). 1. Position the mower on a flat surface. 2. Disengage the blade-control switch (PTO), move the motion-control levers to the N position, EUTRAL...
  • Page 59 Figure 89 1. 7.6 cm (3 inches) at 3. Measure here from the position A is correct blade tip to the hard Figure 91 surface 1. Bolts at the bottom of the height-of-cut plate 2. 8.3 cm (3-1/4 inches) at 4.

  • Page 60: Servicing The Cutting Blades

    Servicing the Cutting Blades 16. On both sides of the deck, measure from the level surface to the back tip of the blade (postion B) as To ensure a superior quality of cut, keep the blades sharp. shown in Figure For convenient sharpening and replacement, you may want Note: The measurement should read 8.3 cm (3-1/4 to keep extra blades on hand.

  • Page 61: Removing The Blades

    To ensure brake. optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades. 2. Shut off the engine, remove the key, and wait for all Replacement blades made by other manufacturers may result moving parts to stop before leaving the operating in nonconformance with safety standards.

  • Page 62: Removing The Mower Deck

    Removing the Mower Deck Note: If the blade stays in a horizontal position, the blade is balanced and can be used. Before servicing or removing the mower deck, lock out the spring-loaded deck arms. WARNING Deck-lift-arm assemblies have stored energy. Figure 97 Removing the deck without releasing the stored 1.

  • Page 63: Replacing The Grass Deflector

    9. Slide the deck out to the right side of the machine. Replacing the Grass Deflector WARNING An uncovered discharge opening could allow the lawn mower to throw objects at you or bystanders, resulting in serious injury. Also, contact with the blade could occur.

  • Page 64: Cleaning

    Cleaning Storage Cleaning and Storing the Cleaning under the Mower Machine Service Interval: Before each use or daily 1. Disengage the power-take off (blade-control switch 1. Disengage the blade-control switch (PTO), move the (PTO), set the parking brake, and turn the ignition key motion-control levers to the N position, EUTRAL...
  • Page 65 C. Shut off the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank (page 43). D. Start the engine and run it until it stops. E. Dispose of fuel properly. Recycle as per local codes.

  • Page 66: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action The malfunction-indicator light (MIL) 1. The engine is too hot. 1. Turn the engine off and let it cool. comes on. 2. There is old fuel in the fuel tank. 2. Use new fuel. 3.
  • Page 67 Problem Possible Cause Corrective Action The engine loses power. 1. The engine load is excessive. 1. Reduce the ground speed. 2. The air cleaner is dirty. 2. Clean the air-cleaner element. 3. The oil level in the crankcase is low. 3.
  • Page 68 Problem Possible Cause Corrective Action The clutch does not engage. 1. The fuse is blown. 1. Replace the fuse. Check the coil resistance, battery charge, charging system, and wiring connections, and replace components if necessary. 2. There is low voltage supply at the 2.

  • Page 69: Schematics

    Schematics G0131 19 Wire Diagram (Rev. A)
  • Page 70 Notes:...
  • Page 71 Notes:...
  • Page 72 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.

This manual is also suitable for:

Z master professional 5000 series

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