Toro 74915 Z Master G3 Operator's Manual

Toro 74915 Z Master G3 Operator's Manual

Riding mower with 60in turbo force side discharge mower
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Form No. 3364-245 Rev A
Z Master
®
G3 Riding Mower
with 60in TURBO FORCE
®

Side Discharge

Mower
Model No. 74915—Serial No. 310000001 and Up
G008971
To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com.
Original Instructions (EN)

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Summary of Contents for Toro 74915 Z Master G3

  • Page 1: Side Discharge

    G3 Riding Mower with 60in TURBO FORCE ® Side Discharge Mower Model No. 74915—Serial No. 310000001 and Up G008971 To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com. Original Instructions (EN)
  • Page 2: Introduction

    Dealer or Toro Customer Service and have the model WARNING and serial numbers of your product ready. Figure 1 identifies the location of the model and serial numbers CALIFORNIA on the product. Write the numbers in the space Proposition 65 Warning provided.
  • Page 3: Table Of Contents

    Safety and Instructional Decals ......7 Adjusting the Tracking........43 Product Overview ............12 Checking the Tire Pressure ......... 43 Controls ............. 12 Checking the Wheel Hub Slotted Nut....43 Specifications ............. 13 Adjusting the Caster Pivot Bearing ...... 44 Operation..............
  • Page 4: Safety

    Safety • Use extra care when handling gasoline and other fuels. They are flammable and vapors are explosive. Improper use or maintenance by the operator or owner – Use only an approved container can result in injury. To reduce the potential for injury, –...
  • Page 5: Slope Operation

    • Be certain that the seat belt can be released quickly • Use only Toro approved attachments. Warranty may in the event of an emergency. be voided if used with unapproved attachments.
  • 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 66-1340...
  • Page 8 109-7232 109-7929 107-2102 109-9477 107-2112 110-2067...
  • Page 9 115-2765 110-2068 1. Fuel 6. Hour meter 2. Empty 7. PTO 1. Read the Operator’s Manual. 8. Parking brake 3. Half 4. Full 9. Neutral 5. Battery 10. Operator presence switch 114-4466 1. Main, 25A 3. Charge, 25A 2. PTO, 10A 4.
  • Page 10 116-0157 116-0165 116-0752 1. Locked 2. Unlocked 116-0205 116-1654 116–2643 116-0211 117–2718 Manufacturer’s Mark 1. Indicates the blade is identified as a part from the original machine manufacturer.
  • Page 11 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 12: 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 6). The indicator light appears when the fuel level is low (approximately one gallon remaining in the fuel tank). Safety Interlock Indicators There are symbols on the hour meter and the indicate with a black triangle that the interlock component is in...
  • Page 13: Specifications

    A selection of Toro approved attachments and accessories are 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.
  • Page 14: Operation

    Operation DANGER In certain conditions during fueling, static Note: Determine the left and right sides of the electricity can be released causing a spark which machine from the normal operating position. can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can damage property.
  • Page 15: Checking The Engine Oil Level

    Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline. To minimize the chance of varnish deposits in the fuel system, use fuel stabilizer at all times. Filling the Fuel Tank G009189 Note: Do not fill the fuel tank completely full. Fill the fuel tank to the bottom of the filler neck.
  • Page 16: Using The Rollover Protection System (Rops)

    Using the Rollover Protection System (ROPS) WARNING To avoid injury or death from rollover: keep the roll bar in the raised locked position and use the seat belt. Ensure that the rear part of the seat is secured with the seat latch. WARNING There is no rollover protection when the roll bar is in the down position.
  • Page 17: Operating The Parking Brake

    DANGER CAUTION Operating on wet grass or steep slopes can cause This machine produces sound levels in excess of sliding and loss of control. 85 dBA at the operators ear and can cause hearing loss through extended periods of exposure. Wheels dropping over edges can cause rollovers, which may result in serious injury, death or Wear hearing protection when operating this...
  • Page 18: Operating The Mower Blade Control Switch (Pto)

    Disengaging the Blade Control Switch (PTO) G009174 Figure 14 Operating the Throttle G008944 Figure 12 The throttle control can be moved between Fast and Slow positions (Figure 15). Always use the fast position when turning on the mower deck with the blade control switch (PTO). Operating the Mower Blade Control Switch (PTO) The blade control switch (PTO) starts and stops the...
  • Page 19: Operating The Ignition Switch

    Close the fuel shut-off valve for transport, maintenance, and storage. Ensure the fuel shut-off valve is open when starting the engine. G008959 Figure 16 Figure 18 1. On 2. Off 1. On 3. Hose going to the engine 2. Off Operating the Ignition Switch 1.
  • Page 20: Stopping The Engine

    Stopping the Engine CAUTION Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended. Always remove the ignition key and set the parking brake when leaving the machine unattended, even if just for a few minutes. Let the engine idle at slow throttle (turtle) for 60 seconds before turning the ignition switch off.
  • Page 21: The Safety Interlock System

    The Safety Interlock System operate as described below, have an Authorized Service Dealer repair the safety system immediately. CAUTION 1. Sitting on the seat, engage the parking brake and move the blade control switch (PTO) to on. Try If safety interlock switches are disconnected or starting the engine;...
  • Page 22 Using the Motion Control Levers G008952 Figure 24 Figure 23 Driving Backward 1. Motion control 3. Forward 1. Move the levers to the center, unlocked position. lever-neutral lock position 2. Center, unlocked position 4. Backward 2. To go backward, slowly pull the motion control levers rearward (Figure 25).
  • Page 23: 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 in Operation.
  • Page 24: Adjusting The Anti-Scalp Rollers

    Adjusting the Height-of-Cut Pin The height-of-cut is adjusted from 1 to 5-1/2 inches (25 to 140 mm) in 1/4 inch (6 mm) increments by relocating the clevis pin into different hole locations. 1. Move the transport lock to the lock position. 2.
  • Page 25: Adjusting The Flow Baffle Cam Locks

    Adjusting the Flow Baffle Cam Position A Locks This is the full rear position. The suggested use for this position is a follows. This procedure is applicable only to machines with • Use for short, light grass mowing conditions. the flow baffle locks. Certain models will have nuts and bolts in-place of the flow baffle locks and can be •...
  • Page 26: Positioning The Seat

    Unlatching the Seat • Allows increased ground speed in heavy conditions. • This position is similar to the benefits of the Toro SFS mower. Figure 36 1. Seat latch 2. Seat Using the Drive Wheel Release Valves Figure 34 WARNING...
  • Page 27: Using The Side Discharge

    Transporting Machines Use a heavy-duty trailer or truck to transport the machine. Ensure that the trailer or truck has all necessary brakes, lighting, and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you, your family, pets or bystanders avoid injury.
  • Page 28: Loading Machines

    Loading Machines Use extreme caution when loading units on trailers or trucks. One full width ramp that is wide enough to extend beyond the rear tires is recommended instead of individual ramps for each side of the unit (Figure 39). The lower rear section of the tractor frame extends back between the rear wheels and serves as a stop for tipping backward.
  • Page 29: Cutting Speed

    If a blade is damaged or worn, replace it immediately with Mow at Correct Intervals a genuine TORO replacement blade. Normally, mow every four days. But remember, grass grows at different rates at different times. So to maintain the same cutting height, which is a good practice, mow more often in early spring.
  • Page 30: Maintenance

    • Check the torque for wheel lug nuts. Every 500 hours • Adjust the caster pivot bearing. • Check the park brake adjustment. • Change the hydraulic filters and hydraulic oil when using Toro® HYPR-OIL™ 500 hydraulic oil. • Check the battery charge. Monthly •...
  • Page 31: 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 and Lubrication Grease more frequently when operating conditions are extremely dusty or sandy.
  • Page 32: Lubricate Caster Wheel Hubs

    2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Grease the mower deck idler pulley pivot until grease come out the bottom (Figure 41). 4. Grease the three spindle bearings until grease comes out (Figure 41).
  • Page 33: Engine Maintenance

    Engine Maintenance 8. If the axle assembly has had both spacer nuts removed (or broken loose), apply a thread locking adhesive to one spacer nut and thread onto the axle WARNING with the wrench flats facing outward. Do Not thread spacer nut all of the way onto the end of the axle.
  • Page 34: Servicing The Engine Oil

    5. Gently slide the primary filter out of the air cleaner Oil Capacity: with a filter change, 59 ounces (1.75 L); body (Figure 45). with no filter change, 54 ounces (1.6 L) Note: Avoid knocking the filter into the side of the Viscosity: See the table below.
  • Page 35: Changing The Engine Oil

    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. G008804 1. Start the engine and let it run five minutes. This warms the oil so it drains better.
  • Page 36: Changing The Engine Oil Filter

    5. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil to bring it to the Full mark (Figure 49). G008804 G008796 Figure 49 6. Start the engine and drive to a flat area. Check the oil level again.
  • Page 37: Servicing The Spark Plug

    Servicing the Spark Plug Service Interval: Every 100 hours Make sure the air gap between the center and side electrodes is correct before installing the spark plug. Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap.
  • Page 38: Check Spark Arrester (If Equipped)

    Checking the Spark Plug Check Spark Arrester (if equipped) Important: Never clean the spark plug(s). Always replace the spark plug(s) when it has: a black Service Interval: Every 50 hours coating, worn electrodes, an oily film, or cracks. If you see light brown or gray on the insulator, the WARNING engine is operating properly.
  • Page 39: Fuel System Maintenance

    Fuel System installed at the factory to keep the fuel line away from components that can cause fuel line damage. Maintenance Servicing the Fuel Tank Replacing the Fuel Filter Do not attempt to drain the fuel tank. Ensure that an Service Interval: Every 500 hours/Yearly (whichever Authorized Service Dealer drains the fuel tank and comes first) (more often in dirty or...
  • Page 40: 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 41: Installing The Battery

    Important: Always keep the battery fully charged (1.265 specific gravity). This is especially important to prevent battery damage when the temperature is below 32°F (0°C). 1. Charge battery for 10 to 15 minutes at 25 to 30 amps or 30 minutes at 10 amps. G008804 2.
  • Page 42: Servicing The Fuses

    Servicing the Fuses Drive System Maintenance The electrical system is protected by fuses. It requires no maintenance, however, if a fuse blows check the component/circuit for a malfunction or short. Checking the Seat Belt 1. The fuses are located on right hand console next to the seat (Figure 58).
  • Page 43: Adjusting The Tracking

    Figure 60 Checking the Wheel Hub Slotted Nut Service Interval: After the first 100 hours Every 500 hours See Figure 61 to determine which slotted nut has been installed on the unit. Figure 59 Figure 61 1. ROPS knob (locked 3.
  • Page 44: Adjusting The Caster Pivot Bearing

    Figure 62 1. 0.1 inch max 2. No more than two threads (0.1 inch max) should be showing here. 4. If more than two threads (0.1 inch) are showing remove nut and install washer between hub and Figure 63 nut. 1.
  • Page 45 2. Using an air compressor, blow out any debris from under the brake pole and around the brake spacers. Figure 67 1. Shim C. Using a pneumatic line, blow out any debris Figure 65 from under the brake pole and around the brake spacers.
  • Page 46: Cooling System Maintenance

    Cooling System F. Perform the following safety check: a. Sit on the seat and start the engine. Maintenance b. Make sure the blades Do Not engage with the PTO switch “off ” and the clutch disengaged. Cleaning the Engine Screen If the clutch does not disengage, reinstall the and Engine Oil Cooler shim and reference the Troubleshooting...
  • Page 47: Check And Clean The Hydraulic Unit Shrouds

    Figure 71 Figure 72 1. Engine guard 4. Fan housing 1. Hydraulic unit shrouds 2. Engine air intake screen 5. Screw 3. Bolt Check and Clean the Hydraulic Unit Shrouds Service Interval: Before each use or daily 1. Disengage the PTO and set the parking brake. 2.
  • Page 48: Brake Maintenance

    Brake Maintenance standard nut. Do Not allow the cable to turn when the nuts are tightened. 15. Close the drive wheel release valve. Refer to Using Adjusting the Parking Brake the Drive Wheel Valves in Operation. Service Interval: After the first 100 hours 16.
  • Page 49: 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 50: Replacing The Hydraulic Pump Drive Belt

    Figure 76 1. Position the belt cover 3. Ensure the tab is under Figure 77 the metal catch 2. Slide belt cover under the 1. Idler pulley 5. Left hand hydraulic pump side catches pulley 2. Clutch pulley 6. Square hole in idler arm 3.
  • Page 51: Controls System Maintenance

    Controls System Maintenance Adjusting the Control Handle Position There are two 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 52: Adjusting The Motion Control Damper

    Adjusting the Motion Control 4. Temporarily install a jumper wire across the terminals in the connector of the main wiring Damper harness. 5. Start engine. Brake must be engaged and motion The top damper mounting bolt can be adjusted to control levers out to start engine.
  • Page 53: Hydraulic System Maintenance

    Hydraulic System Maintenance Servicing the Hydraulic System Hydraulic Oil Type: Toro ® HYPR-OIL ™ Figure 82 hydraulic oil or Mobil ® 1 15W-50. 1. Flanged nut 2. Jam nut Important: Use oil specified. Other fluids could cause system damage. Each Hydraulic System Oil Capacity: 52 ounces (1.5...
  • Page 54 ® when using Mobil 1 oil. Every 500 hours—Change the hydraulic filters and hydraulic oil when using Toro ® HYPR-OIL ™ hydraulic oil. To replace the hydraulic oil, the filters need to be removed. Replace both at the same time. Refer to the oil specifications under Servicing the Hydraulic System for the correct oil.
  • Page 55: 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 56 6. Insert the height adjustment pin into the 3 inch (7.6 cm) cutting height location. 7. Release the transport lock and allow the deck to lower to the cutting height. 8. Raise the discharge chute. 9. On both sides of the deck, measure from the level surface to the front tip of the blade (Postion A).
  • Page 57: Servicing The Cutting Blades

    If a blade is damaged or worn, replace it immediately with a genuine Toro replacement blade. For convenient sharpening and replacement, you may want to keep extra blades on hand.
  • Page 58: Removing The Blades

    Checking for Bent Blades performance and continued safety conformance of the machine, use genuine Toro replacement blades. 1. Disengage the blade control switch (PTO), move the Replacement blades made by other manufacturers may motion control levers to the neutral locked position result in non-conformance with safety standards.
  • Page 59 Installing the Blades 1. Install the blade onto the spindle shaft (Figure 96). Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. Figure 94 2. Install the spring disk and blade bolt. The spring disk cone must be installed toward the bolt head 1.
  • Page 60: 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. Do Not attempt to disassemble the deck from the front frame without locking out the stored energy.
  • Page 61: Replacing The Grass Deflector

    Note: Make sure the L end of the spring is installed behind the deck edge before installing the bolt as shown in Figure 99. 3. Install the bolt and nut. Place the J hook end of the spring around the grass deflector (Figure 99). Important: The grass deflector must be able to lower down into position.
  • Page 62: Cleaning

    Cleaning Storage Cleaning and Storage Cleaning Under the Mower 1. Disengage the power take off (blade control switch Service Interval: Before each use or daily (PTO), set the parking brake, and turn the ignition key to Off. Remove the key. 1.
  • Page 63 B. Run the engine to distribute conditioned fuel through the fuel system (5 minutes). C. Stop the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank in the Maintenance Section. D. Restart the engine and run it until it stops. E.
  • Page 64: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action Starter does not crank 1. Blade control switch (PTO) is engaged. 1. Move blade control switch (PTO) to disengaged. 2. Parking brake is not on. 2. Set the parking brake. 3. Drive levers are not in neutral lock 3.
  • Page 65 Problem Possible Cause Corrective Action Machine does not drive. 1. By pass valves is not closed tight. 1. Tighten the by pass valves. 2. Pump belt is worn, loose or broken. 2. Change the belt. 3. Pump belt is off a pulley. 3.
  • Page 66: Schematics

    Schematics Wire Diagram (Rev. A)
  • Page 67 Notes:...
  • Page 68: Conditions And Products Covered

    Countries Other than the United States or Canada 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.

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