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Toro 74955 Operator's Manual

Toro 74955 Operator's Manual

With 52in or 72in turbo force side discharge mower
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Original Instructions (EN)
Z Master
®
Series Riding Mower
with 52in or 72in TURBO FORCE
Discharge Mower
Model No. 74955—Serial No. 315000001 and Up
Model No. 74959—Serial No. 315000001 and Up
Form No. 3394-324 Rev A
Commercial 3000
®
Side
*3394-324* A

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Summary of Contents for Toro 74955

  • Page 1 Z Master ® Commercial 3000 Series Riding Mower with 52in or 72in TURBO FORCE ® Side Discharge Mower Model No. 74955—Serial No. 315000001 and Up Model No. 74959—Serial No. 315000001 and Up *3394-324* 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

    Check the Spark Arrester (if equipped) ......39 Fuel System Maintenance ...........40 Replacing the Fuel Filter..........40 Servicing the Fuel Tank ...........40 Figure 2 Electrical System Maintenance ........41 1. Safety alert symbol Servicing the Battery..........41 Servicing the Fuses ..........42 Drive System Maintenance .........43 This manual uses 2 words to highlight information.
  • Page 4: Safety

    Operation Safety • Lightning can cause severe injury or death. If lightning is seen or thunder is heard in the area, do not operate Improper use or maintenance can result in injury. To reduce the machine; seek shelter. the potential for injury, comply with these safety instructions and always pay attention to the safety alert symbol, which •...
  • Page 5: Maintenance And Storage

    • • Be certain that the seat belt can be released quickly in Let engine cool before storing and do not store near the event of an emergency. flame. • Check the area to be mowed where there are slopes, drop •...
  • 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. 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 8 110-2068 1. Read the Operator's Manual. 112-9028 1. Warning—stay away from moving parts; keep all guards in place. 107-3069 1. Warning–there is no rollover protection when the roll bar is down. 114-4466 2. To avoid injury or death from a rollover accident, keep the roll bar in the raised and locked position and wear the seat 1.
  • Page 9 116-1716 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 10 126-2055 1. Wheel lug nut torque 95 ft-lb (129 N-m) (4x) 2. Wheel hub nut torque 235 ft-lb (319 N-m) 3. Read and understand the Operator’s Manual before performing any maintenance, check torque after first 100 117-3864 hours then every 500 hours thereafter. 1.
  • Page 11 Manufacturer's Mark 1. Indicates the blade is identified as a part from the original machine manufacturer. 127-0326 1. Read the Operator's 3. Remove the key from Manual. the ignition and read the Operator's Manual before performing maintenance or servicing the machine. 2.
  • Page 12 116-8722 1. Warning-Read the Operator’s Manual. Do not operate this 4. Cutting/dismemberment of hand or foot-stay away from machine unless you are trained. Wear hearing protection. moving parts; keep all guards and shields in place. 2. Warning-Stay away from moving parts; keep all guards 5.
  • Page 13 127–0335 1. Tipping hazard on slopes—do not make sudden, tight turns; 2. Ramp hazard—when loading onto a trailer, do not use dual make slow, wide turns; do not use on slopes near open water; ramps; only use a singular ramp wide enough for the machine do not use this machine on slopes greater than 15 degrees.
  • Page 14: Product Overview

    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 on (Figure The indicator light appears when the fuel level is low...
  • Page 15: Specifications

    119 cm (47 inches) available for use with the machine to enhance and expand its capabilities. Contact your Authorized Service Dealer or Weight: Distributor or go to www.Toro.com for a list of all approved attachments and accessories. Model Weight 74955...
  • Page 16: 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 17: Checking The Engine-Oil Level

    Important: Lower the roll bar only when absolutely of varnish deposits in the fuel system, use fuel stabilizer at all times. necessary. Important: Ensure that the seat is secured to the Filling the Fuel Tank machine. 1. Shut the engine off and set the parking brake. 1.
  • Page 18: Think Safety First

    Important: Always use the seat belt with the roll CAUTION bar in the fully raised position. This machine produces sound levels in excess of 85 dBA at the operators ear and can cause hearing Think Safety First loss through extended periods of exposure. Please read all safety instructions and symbols in the safety Wear hearing protection when operating this section.
  • Page 19: Operating The Mower Blade-Control Switch (Pto)

    Releasing the Parking Brake Operating the Throttle The throttle control can be moved between the Fast and Slow positions (Figure 14). Always use the fast position when turning on the mower deck with the blade-control switch (PTO). g027335 Figure 11 G008946 Figure 14 Operating the Mower...
  • Page 20: Using The Fuel Shutoff Valve

    Using the Fuel Shutoff Valve The fuel shutoff valve is located under the seat. Move the seat forward to access it. Close the fuel shutoff valve for transport, maintenance, and storage. Ensure the fuel shutoff valve is open when starting the engine. G008948 Figure 16 g027336...
  • Page 21: 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 machine while it is damaged the machine could operate unexpectedly unattended. causing personal injury. •...
  • Page 22: 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 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 the off position. Set the parking brake when you leave the machine; refer to Setting the Parking Brake (page 18).
  • Page 24: Adjusting The Anti-Scalp Rollers

    Adjusting the Height-of-Cut Pin 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. Move the transport lock to the lock position. 2.
  • Page 25: 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 26: Positioning The Flow Baffle

    Allows increased ground speed in heavy conditions. Note: If the engine power draws down and the mower • This position is similar to the benefits of the Toro SFS ground speed is the same, open up the baffle. mower. Position A This is the full rear position.
  • Page 27: Using The Drive-Wheel-Release Valves

    Using the Drive-Wheel-Release 4. Rotate the release valve levers horizontally to run the machine (Figure 34). Valves Using the Side Discharge WARNING The mower has a hinged grass deflector that disperses Hands may become entangled in the rotating drive clippings to the side and down toward the turf. components below the engine deck, which could result in serious injury.
  • Page 28: Loading The Machine

    5. Use the metal tie down loops on the machine to WARNING securely fasten the machine to the trailer or truck with Loading a machine onto a trailer or truck increases straps, chains, cable, or ropes (Figure 35). the possibility of tip-over and could cause serious injury or death.
  • Page 29 g027996 Figure 37 1. Full-width ramp in stowed 4. Ramp is at least four times position (4X) as long as the height of the trailer or truck bed to the ground 2. Side view of full-width 5. H= height of the trailer or ramp in loading position truck bed to the ground 3.
  • Page 30: Operating Tips

    File down any nicks and sharpen the blades as necessary. If a blade is damaged or worn, replace it Alternating Mowing Direction immediately with a genuine Toro replacement blade. Alternate mowing direction to keep the grass standing straight. This also helps disperse clippings, which enhances decomposition and fertilization.
  • Page 31: Maintenance

    • Adjust the caster-pivot bearing. Every 500 hours • Check the parking brake adjustment. • Change the hydraulic filters and hydraulic oil when using Toro® HYPR-OIL™ 500 hydraulic oil (more often in dirty or dusty conditions). • Replace the inner air filter.
  • Page 32: 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 Grease more frequently when operating conditions are Service Interval: Every 50 hours—Grease the mower deck extremely dusty or sandy.
  • Page 33: Lubricate The Caster-Wheel Hubs

    Lubricate the Caster-Wheel Hubs Service Interval: Yearly 1. Stop the engine, wait for all moving parts to stop, and remove the key. Engage the parking brake. Figure 40 Figure 42 6. Remove the dust cap and adjust the caster pivots. 1.
  • Page 34: Engine Maintenance

    Engine Maintenance 13. 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 14. Torque the nut to 8-9 N-m (75-80 in-lb), loosen, then re-torque to 2-3 N-m (20-25 in-lb).
  • Page 35: Servicing The Engine Oil

    Servicing the Safety Filter Important: Never attempt to clean the inner filter. If the safety filter is dirty, then the primary filter is Replace the safety filter, never clean it. damaged. Replace both filters. Important: Do not attempt to clean the safety filter. If the safety filter is dirty, then the primary filter is damaged.
  • Page 36 Checking the Engine-Oil Level Service Interval: Before each use or daily Note: Check the oil when the engine is cold. WARNING G008804 Contact with hot surfaces may cause personal injury. Keep hands, feet, face, clothing, and other body parts away from the muffler and other hot surfaces. Important: Do not overfill the crankcase with oil because damage to the engine may result.
  • Page 37: 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 48). Every 100 hours (more often in dirty or dusty conditions).
  • Page 38: Servicing The Spark Plug

    Removing the Spark Plug 1. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 2. Disengage the PTO, move the motion-control levers to the neutral locked position and set the parking brake. G008804 3.
  • Page 39: Check The Spark Arrester (If Equipped)

    Installing the Spark Plug Tighten the spark plug(s) to 24.4–29.8 N-m (18-22 ft.-lb). G008803 g027478 Figure 51 5. Install the left hydraulic unit shroud (Figure 50). Figure 53 Checking the Spark Plug Important: Replace the spark plug(s) when it has: a black coating, worn electrodes, an oily film, cracks or Check the Spark Arrester (if reuse is questionable.
  • Page 40: Fuel System Maintenance

    Servicing the Fuel Tank Fuel System Maintenance Do not attempt to drain the fuel tank. Ensure that an Authorized Service Dealer drains the fuel tank and services any components of the fuel system. Replacing the Fuel Filter Service Interval: Every 500 hours/Yearly (whichever comes first) (more often in dirty or dusty conditions).
  • Page 41: Electrical System Maintenance

    Electrical System 1. Disengage the blade-control switch (PTO), move the motion-control levers to the neutral locked position Maintenance 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. Servicing the Battery 3.
  • Page 42: Servicing The Fuses

    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. 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 43: 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 WARNING To avoid injury or death from rollover: keep the roll...
  • Page 44: Checking The Tire Pressure

    Checking the Wheel Lug Nuts Check and torque the wheel lug nuts to 122-129 N-m (90-95 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 45: Using The Clutch Shim

    Removing the Clutch Shim 4. Tighten the locknut until the spring washers are flat and then back off a 1/4 turn to properly set the pre-load on 1. Stop the engine, wait for all moving parts to stop, and the bearings (Figure 62).
  • Page 46 F. Perform the following safety check: i. Sit on the seat and start the engine. ii. Make sure the blades Do not engage with the PTO switch “off ” and the clutch disengaged. If the clutch does not disengage, install the shim, and reference the Troubleshooting (page 63)
  • Page 47: Cooling System Maintenance

    Cooling System Maintenance Cleaning the Engine Screen and Engine-Oil Cooler Service Interval: Before each use or daily Remove any build-up of grass, dirt, or other debris from the oil cooler (Figure 69). G008804 Figure 70 1. Engine guard 4. Fan housing 2.
  • Page 48: Check And Clean The Hydraulic Units

    Check and Clean the Hydraulic Brake Maintenance Units 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. Stop the engine, remove the key, and wait for all moving Every 500 hours thereafter parts to stop before leaving the operating position.
  • 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 the metal catch 2. Slide belt cover under the side catches Replacing the Hydraulic Figure 74 Pump-Drive Belt 1. Clutch pulley 5. Square hole in the idler arm for the ratchet 1.
  • Page 51: Controls System Maintenance

    Controls System Maintenance Adjusting the Control-Handle Position There are 2 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. 2.
  • Page 52: Adjusting The Motion-Control Linkage

    engine. The operator does not have to be in the seat because of the jumper wire being used. Run the engine at full throttle and release the brake. 6. Run the machine at least 5 minutes with the motion-control levers at full forward speed to bring the hydraulic oil up to operating temperature.
  • Page 53: Adjusting The Motion-Control Damper

    Adjusting the Motion-Control Damper The top damper-mounting bolt can be adjusted to obtain a more desired motion-control lever resistance. See Figure 80 for mounting options. Figure 81 1. Flanged nut 2. Jam nut Figure 80 RH Motion Control Shown 1. Torque the locknut to 23 N-m (17 ft-lb). The bolt must protrude past the end of the locknut after torquing.
  • Page 54: Hydraulic System Maintenance

    Hydraulic System Maintenance Servicing the Hydraulic System Hydraulic Oil Type: Toro ® HYPR-OIL ™ 500 hydraulic oil or Mobil ® 1 15W-50. Important: Use oil specified. Other fluids could cause system damage. Each Hydraulic System Oil Capacity: 52 ounces (1.5 l) per...
  • Page 55 Every 500 hours—Change the hydraulic filters and ® ™ hydraulic oil when using Toro HYPR-OIL hydraulic oil (more often in dirty or dusty conditions). To replace the hydraulic oil, the filters need to be removed. Replace both at the same time; refer to...
  • Page 56: 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 57: Servicing The Cutting Blades

    1. Bolts at the bottom of the height-of-cut plate 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 13. If the deck is too low, tighten the single point keep extra blades on hand.
  • Page 58: Inspecting The Blades

    DANGER A worn or damaged blade can break, and a piece of the blade could be thrown into the operator's or bystander's area, resulting in serious personal injury or death. • Inspect the blade periodically for wear or damage. • Replace a worn or damaged blade. Before Inspecting or Servicing the Blades Park the machine on a level surface, disengage the blade...
  • Page 59: Removing The Blades

    Blades must be replaced if a solid object is hit, if the blade is out of balance or is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made Figure 94 by other manufacturers may result in non-conformance with 1.
  • Page 60: Removing The Mower Deck

    Removing the Mower Deck Lock out the spring loaded deck arms before servicing or removing the mower deck. 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

    Cleaning 9. Slide the deck out to the right side of the machine. Replacing the Grass Deflector Cleaning Under the Mower WARNING Service Interval: Before each use or daily 1. Disengage the blade control switch (PTO), move the An uncovered discharge opening could allow the motion control levers to the neutral locked position, lawn mower to throw objects in the operator's or and set the parking brake.
  • Page 62: Storage

    Storage D. Restart the engine and run it until it stops. E. Dispose of fuel properly. Recycle as per local codes. Cleaning and Storage Important: Do not store 1. Disengage the power take off (blade control switch stabilizer/conditioned fuel over 90 days. (PTO), set the parking brake, and turn the ignition key to the off position.
  • Page 63: Troubleshooting

    Troubleshooting Problem Possible Cause Corrective Action The starter does not crank. 1. The blade control switch (PTO) is 1. Move the blade control switch (PTO) engaged. to disengaged. 2. The parking brake is not on. 2. Set the parking brake. 3.
  • Page 64 Problem Possible Cause Corrective Action The machine does not drive. 1. The by pass valves is not closed tight. 1. Tighten the by pass valves. 2. The pump belt is worn, loose or broken. 2. Change the belt. 3. The pump belt is off a pulley. 3.
  • Page 65: Schematics

    Schematics G020788 Electrical Schematic (Rev. A)
  • Page 66 Notes:...
  • Page 67 Notes:...
  • Page 68 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.

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