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Toro Z Master 74975 Operator's Manual

With 60in turbo force side discharge mower
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Form No. 3371-151 Rev A
Z Master
®
Riding Mower
with 60in TURBO FORCE
®

Side Discharge

Mower
Model No. 74975—Serial No. 312000001 and Up
Model No. 74977—Serial No. 3120000001 and Up
G018026
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 Z Master 74975

  • Page 1: Side Discharge

    ® Side Discharge Mower Model No. 74975—Serial No. 312000001 and Up Model No. 74977—Serial No. 3120000001 and Up G018026 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

    If you require a spark arrestor, contact your Authorized Toro Dealer. Genuine Toro spark arresters are approved by the USDA Forestry Service. Note: It is a violation of California Public Resource...

  • Page 3: Table Of Contents

    Contents Drive System Maintenance ........44 Checking the Seat Belt ........44 Checking the Rollover Protection System Introduction..............2 (ROPS) Knobs ..........44 Safety ................4 Adjusting the Tracking........45 Safe Operating Practices ........4 Checking the Tire Pressure ......... 45 Slope Indicator.............

  • Page 4: Safety

    Safety • Use extra care when handling LPG fuel (liquefied petroleum gas). The vapors are flammable and explosive. Improper use or maintenance by the operator or owner – Use only an approved tank can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay –...

  • Page 5: Slope Operation

    • Be aware of the mower discharge direction and do • Be certain that the seat belt can be released quickly not point it at anyone. in the event of an emergency. • Do not operate the mower under the influence of •...
  • Page 6 • Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals. • Use only Toro approved attachments. Warranty may be voided if used with unapproved attachments.

  • Page 7: Slope Indicator

    Slope Indicator G011841 Figure 3 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 15 degrees. Use the slope chart to determine the degree of slope of hills before operating. Do not operate this machine on a slope greater than 15 degrees. Fold along the appropriate line to match the recommended slope.

  • Page 8: Safety And Instructional Decals

    Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or lost. 68-8340 1-403005 98-5954 103-2076 54-9220 58-6520 1. Grease 105-7798 66-1340...
  • Page 9 109-9875 107-2102 110-2067 109-7232 1. Fast 3. Neutral 4. Reverse 2. Slow 110-2068 1. Read the Operator's Manual.
  • Page 10 114-4466 1. Main, 25A 3. Charge, 25A 2. PTO, 10A 4. Auxiliary, 15A 116-0211 115-7445 1. Grease pulleys and spindles 2. Maintenance interval—50 hours 116-0752 1. Locked 2. Unlocked 116-0157 116-1714 116-2643 116-0205...
  • 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. 116-3303 2. No fire, open flame, or 7. Wear eye protection; smoking. explosive gases can cause blindness and other injuries 3.
  • Page 12 109-9906 109-7069...

  • Page 13: Product Overview

    Product Overview g013663 Figure 5 1. PTO Switch 4. Ignition switch 2. Throttle control 5. Fuses 3. Hour meter/Safety interlock display Hour Meter The hour meter records the number of hours the engine has operated. It operates when the engine is running. G018027 Use these times for scheduling regular maintenance Figure 4...

  • Page 14: 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 15: Operation

    The LPG information in this Operator's manual is provided only as a guide. Consult the NFPA 58: • Only use tanks recommended by Toro. Failure to Liquefied Petroleum Gas Code, 2008 Edition for do so will result in improper operation of the fuel additional safety information.
  • Page 16 DANGER DANGER LPG fuel is extremely flammable and vapors are LPG fuel is extremely flammable and vapors are explosive. explosive. A fire or explosion from LPG fuel can burn you, • In case of fire take the following steps: others, and cause property damage. 1.

  • Page 17: Checking The Engine Oil Level

    If this happens, close the fuel valve completely and wait • ONLY use the Toro approved LPG tank, five seconds. Slowly open the fuel valve. fittings, and hoses that were designed for your mower.

  • Page 18: 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 fully raised locked position and use the seat belt. Ensure that the rear part of the seat is secured with the seat latch.

  • Page 19: 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 20: Operating The Mower Blade Control Switch (Pto)

    Releasing the Parking Brake Always use the fast position when turning on the mower deck with the blade control switch (PTO). G008946 G016995 Figure 13 Figure 16 Operating the Mower Blade Operating the Ignition Switch Control Switch (PTO) 1. Turn the ignition key to the Start position (Figure 17).

  • Page 21: Stopping The Engine

    the fuel supply. If this happens, close the fuel valve completely and wait five seconds. Slowly open the fuel valve. 3. Move the motion controls to neutral locked position. 4. Set the parking brake; refer to Setting the Parking Brake. 5.

  • Page 22: The Safety Interlock System

    • The blade control switch (PTO) is disengaged. • The motion control levers are in the neutral locked position The safety interlock system also is designed to stop the engine when the traction controls are moved from the locked position with the parking brake engaged or if you rise from the seat when the PTO is engaged.

  • Page 23: Driving Forward Or Backward

    Using the Motion Control Levers center either motion control and move (forward or reverse); the engine should stop. Repeat for other motion control. 5. Sitting on the seat, disengage the parking brake, move the blade control switch (PTO) to off and move the motion control levers to neutral lock position.

  • Page 24: 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 25: 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 26: Adjusting The Flow Baffle Cam Locks

    1. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

  • Page 27: Positioning The Flow Baffle

    Note: If the engine power draws down and the mower ground speed is the same, open up the baffle. • Allows increased ground speed in heavy conditions. • This position is similar to the benefits of the Toro Position A SFS mower.

  • Page 28: Unlatching The Seat

    Note: Make sure the release valves are in the fully horizontal position when operating the machine or severe damage to the hydraulic system can occur. 1. Disengage the PTO (blade control switch) and turn the ignition key to off. Move the levers to neutral locked position and apply parking brake.

  • Page 29: Transporting Machines

    • Do Not store the tank(s) or machine with tank(s) in DANGER an area where the temperature can rise above 120°F Without a grass deflector, discharge cover, or (49°C). If the temperature exceeds approximately complete grass catcher assembly mounted in 160°F (71°C), the tank will release highly flammable place, you and others are exposed to blade contact propane vapor.

  • Page 30: Operating Tips

    backward. Having a full width ramp provides a surface for the frame members to contact if the unit starts to tip backward. If it is not possible to use one full width ramp, use enough individual ramps to simulate a full width continuous ramp.

  • Page 31: 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 32: Maintenance

    • Check the torque for wheel lug nuts. • Adjust the caster pivot bearing. Every 500 hours • 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 33: 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 34: Lubricate Caster Wheel Hubs

    G009029 Figure 42 Figure 40 Lubricate Caster Wheel Hubs 5. Grease the drive belt idler arm (Figure 40). Service Interval: Yearly 1. Stop the engine, wait for all moving parts to stop, and remove the key. Engage the parking brake. Figure 43 1.

  • Page 35: Engine Maintenance

    Engine Maintenance with the wrench flats facing outward. Do Not thread spacer nut all of the way onto the end of the axle. Leave approximately 1/8 inch (3 mm) from the outer WARNING surface of the spacer nut to the end of the axle inside the nut.

  • Page 36: Servicing The Engine Oil

    3. Carefully slide the primary filter over the secondary filter (Figure 44). Ensure that it is fully seated by pushing on the outer rim of the filter while installing Important: Do not press on the soft inside area of the filter. 4.

  • Page 37: Changing The Engine Oil

    Changing the Engine Oil Important: Do not overfill the crankcase with oil because damage to the engine may result. Do not Service Interval: After the first 8 hours run engine with oil below the low mark because the engine may be damaged. Every 100 hours (more often in dirty or dusty conditions) 1.

  • Page 38: Changing The Engine Oil Filter

    4. 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). G013447 G008796 Figure 48 5. Start the engine and drive to a flat area. Check the oil level again.

  • Page 39: 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 G016169 the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap.

  • Page 40: 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 41: Fuel System Maintenance

    Fuel System ◊ Apply an approved leak detector solution, obtained from a trained and qualified LPG Maintenance distributor, or a thick non-ammonia soapy water solution (50% non-ammonia soap and 50% water). (A leak detector solution that Inspecting the LPG System contains ammonia will cause the fittings to corrode and leak.) Service Interval: Before each use or daily...

  • Page 42: 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 43: Charging The Battery

    Charging the Battery WARNING Charging the battery produces gasses that can explode. Never smoke near the battery and keep sparks and G013447 flames away from 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).

  • Page 44: 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 56).

  • Page 45: Adjusting The Tracking

    G013450 Figure 58 Left control lever shown 1. Control lever 3. Stop plate g013441 2. Bolt Figure 57 1. ROPS knob (locked 3. Roll bar in the upright position position) Checking the Tire Pressure 2. Pull ROPS knob out and 4.

  • Page 46: Checking The Wheel Hub Slotted Nut

    Checking the Wheel Hub nut to align the slot. If required, tighten to the next set of slots. Slotted Nut 7. Install a new cotter pin. Service Interval: After the first 100 hours Note: Do Not use anti-seize on wheel hub. Every 500 hours Adjusting the Caster Pivot See Figure 60 to determine which slotted nut has been...
  • Page 47 to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque. Figure 63 1. Armature 5. Brake spacer Figure 65 2. Field shell 6. Re-gap shim 3. Rotor 7. Brake pole 1.

  • Page 48: Cooling System Maintenance

    Cooling System Maintenance Cleaning the Engine Screen and Engine Oil Cooler Figure 67 Service Interval: Before each use or daily 1. Feeler gauge Remove any build-up of grass, dirt or other debris from the oil cooler (Figure 69). G013447 Figure 68 1.

  • Page 49: Check And Clean The Hydraulic Unit Shrouds

    G016169 Figure 71 Figure 70 1. Hydraulic unit shrouds 1. Engine guard 4. Fan housing 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 50: Brake Maintenance

    Brake Maintenance Adjusting the Parking Brake Service Interval: After the first 100 hours Every 500 hours thereafter Check to make sure brake is adjusted properly. This procedure must be followed after the first 100 hours or when a brake component has been removed or replaced. 1.

  • Page 51: 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 52: 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 53: 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 54: 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 55: 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 56 Replacing the Hydraulic Filters and Hydraulic Oil Service Interval: Every 250 hours Every 500 hours 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 57: 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 58 10. Fine-tune the adjustment nut on the front deck lift assembly by turning it (Figure 87). To increase the height, turn the adjustment nut clockwise; to decrease, turn counterclockwise. G017027 Figure 85 1. Deck lift pedal 3. Transport lock 2. Height of cut pin 6.
  • Page 59 Note: In most conditions, the back blade tip should be adjusted 1/4 inch (6.4 mm) higher than the front. 15. On both sides of the deck, measure from the level surface to the back tip of the blade (Postion B). The measurement should read 3 1/4 inches (8.3 cm) (Figure 86).

  • Page 60: Servicing The Cutting Blades

    (Figure 91). Measure from a level surface blades as necessary. If a blade is damaged or worn, to the cutting edge, position A, of the blades replace it immediately with a genuine Toro replacement (Figure 91). Note this dimension. blade. For convenient sharpening and replacement, you may want to keep extra blades on hand.
  • Page 61 Toro replacement blades. Replacement blades made by other manufacturers may result in non-conformance with safety standards. 1. Hold the blade end using a rag or thickly-padded glove. Figure 93 2. Remove the blade bolt (rotating it counter-clockwise), 1.

  • Page 62: Removing The Mower Deck

    Installing the Blades Removing the Mower Deck 1. Install the blade onto the spindle shaft (Figure 95). Before servicing or removing the mower deck, the spring loaded deck arms must be locked out. Important: The curved part of the blade must be pointing upward toward the inside of the WARNING mower to ensure proper cutting.

  • Page 63: Replacing The Grass Deflector

    Figure 97 1. Right stabilizer Figure 96 2. Deck strut (right side shown) 1. Clutch pulley 5. Square hole in the idler 3. Remove the rear deck lift attachment shoulder bolt and nut. arm for the ratchet 4. Remove the front deck lift attachment shoulder bolt and nut. 2.

  • Page 64: Cleaning

    Cleaning Cleaning Under the Mower Service Interval: Before each use or daily 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.

  • Page 65: Storage

    Storage 13. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged. 14. Paint all scratched or bare metal surfaces. Paint is Cleaning and Storage available from your Authorized Service Dealer. Storage areas should be equipped with at least one 15.

  • Page 66: 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 67 Problem Possible Cause Corrective Action Abnormal vibration. 1. Cutting blade(s) is/are bent or 1. Install new cutting blade(s). unbalanced. 2. Blade mounting bolt is loose. 2. Tighten the blade mounting bolt. 3. Engine mounting bolts are loose. 3. Tighten the engine mounting bolts. 4.

  • Page 68: Schematics

    Schematics LPG Electrical Dia gram G013876 Wire Diagram (Rev. A)
  • Page 69 Notes:...
  • Page 70 Notes:...
  • Page 71 Notes:...
  • Page 72 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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Z master 74977

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