Toro Z master G3 Operator's Manual
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Toro Z master G3 Operator's Manual

Toro Z master G3 Operator's Manual

48in or 52in turbo force side discharge riding mower
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Form No. 3367-967 Rev D
Z Master
®
G3 Riding Mower
with a 48in or 52in TURBO FORCE
®
Side
Discharge Mower
Model No. 74951—Serial No. 311000001 and Up
Model No. 74952—Serial No. 311000001 and Up
Model No. 74953—Serial No. 311000001 and Up
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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  • Page 1 Model No. 74951—Serial No. 311000001 and Up Model No. 74952—Serial No. 311000001 and Up Model No. 74953—Serial No. 311000001 and Up 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

    Write the numbers in the Authorized Toro Dealer. space provided. Genuine Toro spark arresters are approved by the USDA Forestry Service. Note: It is a violation of California Public Resource Code Section 4442 to use or operate the engine on...

  • Page 3: Table Of Contents

    This manual uses 2 other words to highlight information. Servicing the Spark Plug ........37 Important calls attention to special mechanical Check Spark Arrester (if equipped)...... 38 information and Note emphasizes general information Fuel System Maintenance ........38 worthy of special attention. Replacing the Fuel Filter ........

  • 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 • 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 8 109-7929 110-2067 107-2102 110-2068 1. Read the Operator's Manual. 114-4466 1. Main, 25A 3. Charge, 25A 2. PTO, 10A 4. Auxiliary, 15A 109-7232...
  • Page 9 116-1654 115-7445 1. Grease pulleys and spindles 2. Maintenance interval—50 hours 116-1716 1. Fuel 6. Hour meter 2. Empty 7. PTO 8. Parking brake 3. Half 4. Full 9. Neutral 5. Battery 10. Operator presence switch 116-2643 116-0205 116-0211 116-2927 1.
  • Page 10 Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystandersa safe distance from the battery. 116-3303 2. No fire, open flame, or 7. Wear eye protection; smoking. explosive gases can cause blindness and other injuries 3.
  • Page 11 119-6662 1. Choke 4. Continuous variable setting 2. Power Take-off (PTO) 5. Slow 3. Fast...

  • Page 12: Product Overview

    Product Overview Use these times for scheduling regular maintenance (Figure 6). Fuel Gauge The fuel gauge is located with the hour meter and the bars light up when the ignition switch is on (Figure 6). The indicator light appears when the fuel level is low (approximately one gallon remaining in the fuel tank).

  • Page 13: Specifications

    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 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

    Checking the Engine Oil Level Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline. To minimize the Before you start the engine and use the machine, check chance of varnish deposits in the fuel system, use fuel the oil level in the engine crankcase;...

  • Page 16: Think Safety First

    DANGER Operating on wet grass or steep slopes can cause sliding and loss of control. Wheels dropping over edges can cause rollovers, which may result in serious injury, death or drowning. There is no rollover protection when the roll bar is down.

  • Page 17: Operating 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. The use of protective equipment for eyes, ears, feet and head is recommended.

  • Page 18: Operating The Throttle

    Disengaging the Blade Control Switch (PTO) G009174 Figure 14 Operating the Throttle The throttle control can be moved between Fast and Slow positions (Figure 15). G008959 Always use the fast position when turning on the Figure 16 mower deck with the blade control switch (PTO). 1.

  • Page 19: Starting And Stopping The Engine

    Close the fuel shut-off valve for transport, maintenance, and storage. Ensure the fuel shut-off valve is open when starting the engine. G008948 Figure 18 1. On 2. Off Starting and Stopping the Figure 19 Engine 6. Turn the ignition key to the Start position Starting the Engine (Figure 17).

  • Page 20: The Safety Interlock System

    Stopping the Engine The Safety Interlock System CAUTION CAUTION Children or bystanders may be injured if they If safety interlock switches are disconnected or move or attempt to operate the tractor while it is damaged the machine could operate unexpectedly unattended.

  • Page 21: Driving Forward Or Backward

    Using the Motion Control Levers 1. Sitting on the seat, engage the parking brake and move the blade control switch (PTO) to on. Try starting the engine; the engine should not crank. 2. Sitting on the seat, engage the parking brake and move the blade control switch (PTO) to off.

  • Page 22: 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 23: Adjusting The Anti-Scalp Rollers

    Adjusting the Height-of-Cut Pin The height-of-cut is adjusted from 1-1/2 to 4-1/2 inches (38 to 114 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 24: Adjusting The Flow Baffle Cam Locks

    Adjusting the Flow Baffle Cam Locks This procedure is applicable only to machines with the flow baffle locks. Certain models will have nuts and bolts in-place of the flow baffle locks and can be adjusted the same. The mower discharge flow can be adjusted for different types of mowing conditions.

  • Page 25: Positioning The Seat

    Position A • Allows increased ground speed in heavy conditions. • This position is similar to the benefits of the Toro This is the full rear position. The suggested use for this SFS mower. position is a follows. • Use for short, light grass mowing conditions.

  • Page 26: Using The Side Discharge

    WARNING DANGER The engine and hydraulic drive units can become Without a grass deflector, discharge cover, or very hot. Touching a hot engine or hydraulic drive complete grass catcher assembly mounted in units can cause severe burns. place, you and others are exposed to blade contact and thrown debris.

  • Page 27: 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 38). The lower rear section of the tractor frame extends back between the rear wheels and serves as a stop for tipping backward.

  • Page 28: Operating Tips

    Operating Tips WARNING Loading a unit onto a trailer or truck increases the Fast Throttle Setting possibility of backward tip-over and could cause serious injury or death. For best mowing and maximum air circulation, operate the engine at the fast throttle position. Air is required •...
  • Page 29 Check the cutter blades daily for sharpness, and for any wear or damage. File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine TORO replacement blade.

  • 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. 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 40). 4. Grease the three spindle bearings until grease comes out the lower seals (Figure 40).

  • Page 33: Engine Maintenance

    Engine Maintenance spacer nut all of the way onto the end of the axle. Leave approximately 1/8 inch (3 mm) from the outer surface of the spacer nut to the end of the axle inside WARNING the nut. Contact with hot surfaces may cause personal 9.

  • Page 34: Servicing The Engine Oil

    Important: Do not press on the soft inside area of the filter. 4. Install the air cleaner cover with the breather cap down and rotate so the retaining clamps lock the cover in place (Figure 44). Servicing the Engine Oil Oil Type: Detergent oil (API service SF, SG, SH, SJ, or SL) Crankcase Capacity for 20hp Engines: with a filter...
  • Page 35 Changing the Engine Oil 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking Service Interval: After the first 8 hours brake. Every 100 hours (more often in dirty 2. Stop the engine, remove the key, and wait for all or dusty conditions) moving parts to stop before leaving the operating position (Figure 46).
  • Page 36 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 48). G008804 G008796 Figure 48 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)

    Check Spark Arrester (if Fuel System equipped) Maintenance Service Interval: Every 50 hours Replacing the Fuel Filter WARNING Service Interval: Every 500 hours/Yearly (whichever Hot exhaust system components may ignite comes first) (more often in dirty or gasoline vapors even after the engine is stopped. dusty conditions).

  • Page 39: Servicing The Fuel Tank

    Electrical System Note: It is important to reinstall the fuel line hoses and secure with plastic ties the same as they were originally Maintenance installed at the factory to keep the fuel line away from components that could cause fuel line damage. Servicing the Battery Servicing the Fuel Tank Service Interval: Monthly...
  • Page 40 Installing the Battery WARNING 1. Position battery in the tray with the terminal posts Incorrect battery cable routing could damage the opposite from the hydraulic tank (Figure 54). machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in 2.

  • Page 41: Servicing The Fuses

    Servicing the Fuses 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. 1. The fuses are located on right hand console next to the seat (Figure 56). 2.

  • Page 42: Drive System Maintenance

    Drive System Maintenance Checking the Seat Belt Service Interval: Before each use or daily Visually inspect seat belt for wear, cuts, and proper operation of retractor and buckle. Replace before operating if damaged. Checking the Rollover Protection System (ROPS) Knobs Service Interval: Before each use or daily Check that both the mounting hardware and the knobs are in good working condition.

  • Page 43: Checking The Tire Pressure

    7. If it tracks to the left, loosen the bolts and adjust the right stop plate rearward on the right T-slot until the machine tracks straight (Figure 58). 8. Tighten the stop plate (Figure 58). Figure 59 Checking the Wheel Hub Slotted Nut Service Interval: After the first 100 hours Every 500 hours...

  • Page 44: Adjusting The Caster Pivot Bearing

    Figure 61 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 62 nut. 1.
  • Page 45 2. Using an air compressor, blow out any debris from under the brake pole and around the brake spacers. Figure 66 1. Shim C. Using a pneumatic line, blow out any debris Figure 64 from under the brake pole and around the brake spacers.

  • Page 46: Cooling System Maintenance

    Cooling System • If the gap is less than 0.010 inch, then reinstall the shim and reference the Troubleshooting Maintenance section. • If the gap is sufficient, proceed to the safety check in step F. Cleaning the Engine Screen F. Perform the following safety check: and Engine Oil Cooler a.

  • Page 47: Check And Clean The Hydraulic Units

    g0151 17 Figure 70 Figure 71 1. Engine guard 4. Fan housing 1. Hydraulic units 2. Engine air intake screen 5. Screw 3. Bolt Check and Clean the Hydraulic Units 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 75 1. Position the belt cover 3. Ensure the tab is under Figure 76 the metal catch 1. Idler pulley 5. Left hand hydraulic pump 2. Slide belt cover under the pulley side catches 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 not have to be in the seat because of the jumper wire being used. Run engine at full throttle and Damper release brake. The top damper mounting bolt can be adjusted to obtain 6. Run the unit at least 5 minutes with the drive levers a more desired motion control lever resistance.

  • Page 53: Hydraulic System Maintenance

    Hydraulic System Maintenance Servicing the Hydraulic System Hydraulic Oil Type: Toro ® HYPR-OIL ™ ® Figure 81 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 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 To increase the height, turn the adjuster screw clockwise; to decrease, turn counterclockwise. G014940 Figure 85 3. Transport lock 1. Deck lift pedal Figure 87 2. Height of cut pin 1. Whizlock nut 3. Jam nut 2. Adjuster screw 4. Yoke 6.

  • Page 57: Servicing The Cutting Blades

    File down any nicks and sharpen the blades as necessary. 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 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 95). Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. Figure 93 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

    g015594 Figure 98 Figure 97 1. Bolt 5. Spring installed 1. Right stabilizer 2. Spacer 6. Grass Deflector 2. Deck strut (right side shown) 3. Locknut 7. J hook end of spring 3. Remove the rear deck lift attachment shoulder bolt and nut. 4.

  • 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 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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