Toro 74952 Operator's Manual
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Toro 74952 Operator's Manual

With 48in, 52in, or 60in turbo force side discharge mower
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Original Instructions (EN)
Z Master
®
Series Riding Mower
with 48in, 52in, or 60in TURBO FORCE
Discharge Mower
Model No. 74952—Serial No. 315000001 and Up
Model No. 74953—Serial No. 315000001 and Up
Model No. 74957—Serial No. 315000001 and Up
Model No. 78953—Serial No. 315000001 and Up
Form No. 3394-318 Rev A
Commercial 3000
®
Side
*3394-318* A

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Summary of Contents for Toro 74952

  • Page 1 48in, 52in, or 60in TURBO FORCE ® Side Discharge Mower Model No. 74952—Serial No. 315000001 and Up Model No. 74953—Serial No. 315000001 and Up Model No. 74957—Serial No. 315000001 and Up Model No. 78953—Serial No. 315000001 and Up *3394-318* A Register at www.Toro.com.
  • Page 2 If you require a spark arrester, contact your Authorized Toro Service Dealer. Genuine Toro spark arresters are approved by the USDA Forestry Service. Figure 1 Important: It is a violation of California Public 1.

  • Page 3: Table Of Contents

    Contents Checking the Tire Pressure ........43 Checking the Wheel Lug Nuts ........44 Checking the Wheel Hub Slotted Nut ......44 Safety ................4 Adjusting the Caster-Pivot Bearing......44 Safe Operating Practices........... 4 Using the Clutch Shim ..........44 Slope Indicator ............6 Cooling System Maintenance ........46 Safety and Instructional Decals .........

  • 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 of the machine can result the machine; seek shelter. in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the •...

  • Page 5: Maintenance And Storage

    To best protect your investment and maintain optimal performance of your Toro equipment, count on Toro • Allow engine to cool before refueling. genuine parts. When it comes to reliability, Toro delivers • Never refuel the machine indoors. replacement parts designed to the exact engineering specifications of our equipment.

  • 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

    Product Overview The indicator light appears when the fuel level is low—approximately 3.8 L (1 US gallon) remaining in the fuel tank. Figure 6 g027333 1. Fuel gauge (bars) 4. Safety-interlock symbols Figure 4 2. Battery light 5. Low-fuel indicator light 1.

  • Page 15: Specifications

    A selection of Toro approved attachments and accessories is 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. Specifications Note: Specifications and design are subject to change without notice.

  • Page 16: Operation

    Operation DANGER In certain conditions during fueling, static Note: Determine the left and right sides of the machine electricity can cause a spark which can ignite the from the normal operating position. gasoline vapors. A fire or explosion from gasoline can burn you and others and can damage property.

  • Page 17: Checking The Engine-Oil Level

    Filling the Fuel Tank Breaking in a New Machine 1. Park the machine on level ground. New engines take time to develop full power. Mower decks and drive systems have higher friction when new, placing 2. Shut the engine off and set the parking brake. additional load on the engine.

  • Page 18: 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 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.

  • Page 19: Operating The Parking Brake

    Releasing the Parking Brake CAUTION This machine produces sound levels in excess of 85 dBA at the operator’s 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, hands, feet, and head is recommended.

  • Page 20: Operating The Throttle

    Operating the Throttle Operating the Ignition Switch 1. Turn the ignition key to the Start position (Figure 17). The throttle control can be moved between Fast and Slow When the engine starts, release the key. positions (Figure 15). Important: Do not engage the starter for more Always use the fast position when turning on the mower deck than 5 seconds at a time.

  • Page 21: Starting And Stopping The Engine

    Starting and Stopping the Stopping the Engine Engine CAUTION Children or bystanders may be injured if they Starting the Engine move or attempt to operate the machine while it is 1. Raise the ROPS up and lock into place, sit on the seat unattended.

  • Page 22: The Safety-Interlock System

    The Safety-Interlock System 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. CAUTION 2. Sitting on the seat, engage the parking brake and move If safety-interlock switches are disconnected or the blade-control switch (PTO) to off.
  • Page 23 Using the Motion-Control levers G008952 Figure 23 Driving Backward Figure 22 1. Motion-control 4. Backward 1. Move the levers to the center, unlocked position. lever—neutral-lock 2. To go backward, slowly pull the motion-control levers position rearward (Figure 24). 2. Center, unlocked position 5.

  • 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 (page 19).

  • Page 25: 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 moving 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

    Adjusting the Flow Baffle Cam Positioning the Flow Baffle Locks The following figures are only recommendations for use. Adjustments will vary by grass type, moisture content, and This procedure is applicable only to machines with the flow height of grass. baffle locks.

  • Page 27: Positioning The Seat

    Use to allow increased ground speed in heavy conditions. Stop the engine, remove the key, and allow all • This position offers benefits similar to those of the Toro moving parts to stop before accessing the drive SFS mower. wheel release valves.

  • Page 28: Using The Side Discharge

    Transporting the Machine 4. Rotate the release valve levers horizontally to run the machine (Figure 35). Use a heavy-duty trailer or truck to transport the machine. Ensure that the trailer or truck has all necessary brakes, Using the Side Discharge lighting, and marking as required by law.

  • Page 29: 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 37). g028043 Figure 37 1.

  • Page 30: Operating Tips

    File down any nicks and sharpen the it is late fall when grass grows more slowly. blades as necessary. If a blade is damaged or worn, replace it immediately with a genuine TORO replacement blade. Mowing Direction Alternate mowing direction to keep the grass standing straight.

  • Page 31: Maintenance

    Every 500 hours • Adjust the caster pivot bearing. • 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). • Check the battery.

  • 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 Lubricating the Mower Service Interval: Every 50 hours—Grease the mower deck Greasing and Lubrication spindles and idler arm.

  • Page 33: Lubricating The Caster-Wheel Hubs

    Figure 43 1. Seal guard 2. Spacer nut with wrench flats 2. Raise the front of the machine up, and support it with jack stands (or equivalent support) just high enough to Figure 41 allow the front wheels to turn freely. 3.

  • Page 34: Engine Maintenance

    Engine Maintenance Important: To prevent seal and bearing damage, check the bearing adjustment often. Spin the caster wheel. The wheel should not spin freely (more than 1 or 2 revolutions) or have any side play. If the wheel spins WARNING freely, adjust the torque on spacer nut until there is a Contact with hot surfaces may cause personal slight amount of drag.

  • Page 35: Servicing The Engine Oil

    Servicing the Engine Oil Oil Type: Detergent oil (API service SG, SH, SJ, or SL) Crankcase Capacity: with a filter change, 2.1 L (2.2 US qt); without a filter change, 1.8 L (1.9 US qt) Viscosity: See the table below. Figure 44 1.

  • Page 36: 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. Park the machine so that the rear is slightly lower than the front to ensure the oil drains completely.
  • Page 37 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). G008804 g027660 Figure 48 5. Start the engine and drive to a flat area. Check the oil level again.

  • Page 38: Servicing The Spark Plugs

    Servicing the Spark Plugs Service Interval: Every 100 hours Make sure that the air gap between the center electrode and the side electrode is correct before installing each spark plug. Use a spark-plug wrench for removing and installing the spark plugs and a gapping tool/feeler gauge to check and adjust the G008803 air gap.

  • Page 39: Checking The Spark Arrester (If Equipped)

    Installing the Spark Plugs Fuel System Tighten the spark plugs to 24.4 to 29.8 N-m (18 to 22 ft-lb). Maintenance Replacing the Fuel Filter Service Interval: Every 500 hours/Yearly (whichever comes first) (more often in dirty or dusty conditions). The fuel filter is located near the engine on the front or rear side of the engine.

  • Page 40: Servicing The Fuel Tank

    Servicing the Fuel Tank Electrical 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. Servicing the Battery Service Interval: Monthly WARNING CALIFORNIA Proposition 65 Warning Battery posts, terminals, and related...

  • Page 41: Servicing The Fuses

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

  • 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 Figure 57 4.

  • Page 43: Adjusting The Tracking

    g027340 Figure 59 Left control lever shown 1. Control lever 3. Stop plate 2. Bolt Checking the Tire Pressure Figure 58 1. ROPS knob (locked 3. Roll bar in the upright Service Interval: Every 50 hours/Monthly (whichever position) position comes first) 2.

  • Page 44: Checking The Wheel Lug Nuts

    Checking the Wheel Lug Nuts Important: Make sure the spring washers are installed correctly as shown in Figure Check and torque the wheel lug nuts to 122 to 129 N-m (90 5. Install the dust cap (Figure 62). to 95 ft-lb). Checking the Wheel Hub Slotted Nut Service Interval: After the first 100 hours...
  • Page 45 Removing the Clutch Shim 1. Stop the engine, wait for all moving parts to stop, and remove the key. Engage the parking brake. Allow the machine to cool completely before starting these instructions. 2. Using an air compressor, blow out any debris from under the brake pole and around the brake spacers.

  • Page 46: Cooling System Maintenance

    Cooling System F. Perform the following safety check: i. Sit on the seat and start the engine. Maintenance ii. Make sure that the blades do not engage with the PTO switched off and the clutch disengaged. Cleaning the Engine Screen If the clutch does not disengage, install and Engine-Oil Cooler the shim and reference...

  • Page 47: Checking And Cleaning The Hydraulic Units

    Checking and Cleaning the Hydraulic Units Service Interval: Before each use or daily 1. Disengage the PTO 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. 3.

  • Page 48: Brake Maintenance

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

  • 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. These 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

    Replacing the Hydraulic Pump-Drive Belt 1. Disengage the PTO 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. 3. Remove mower belt. Refer to Replacing the Mower Belt (page 49).

  • Page 51: Controls System Maintenance

    Controls System 7. Remove the belt from the hydraulic unit drive pulleys and the engine pulley Maintenance 8. Install the new belt around engine pulley and the two drive pulleys. 9. Using a ratchet in the square hole in the idler arm, Adjusting the Control Handle install the idler spring to the frame (Figure...

  • Page 52: Adjusting The Motion-Control Linkage

    6. Run the unit at least 5 minutes with the drive levers at full forward speed to bring hydraulic oil up to operating temperature. Note: The motion-control lever needs to be in neutral while making any necessary adjustments. 7. Bring the motion-control levers into the neutral position.

  • Page 53: Adjusting The Motion-Control Neutral-Lock Pivot

    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. Figure 80 Each Hydraulic System Oil Capacity: 1.5 L (1.59 US qt)
  • Page 54 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 the oil specifications...

  • Page 55: 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 machine 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 10. If needed, loosen the flanged locknut on the side of the yoke and the jam nut on top. Fine-tune the adjuster screw by turning it to get 7.6 mm (3 inch) height (Figure 87). Note: To increase the height, turn the adjuster screw clockwise;...

  • 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: Removing The Blades

    2. Check the balance of the blade by putting it on a blade and continued safety conformance of the machine, use balancer (Figure 94). If the blade stays in a horizontal genuine Toro replacement blades. Replacement blades made position, the blade is balanced and can be used. If the...

  • Page 59: Removing The Mower Deck

    Removing the Mower Deck blade is not balanced, file some metal off the end of the sail area only (Figure 95). Repeat this procedure Before servicing or removing the mower deck, the until the blade is balanced. spring-loaded deck arms must be locked out. WARNING Deck lift arm assemblies have stored energy.

  • Page 60: Replacing The Grass Deflector

    8. Raise the deck struts and secure them in the up position. Slide the deck out to the right side of the machine. Replacing the Grass Deflector WARNING Operating the machine with the engine running at a speed greater than the factory setting can cause the machine to throw a part of the blade or engine toward the operator or a bystander and result in serious personal injury or death.

  • Page 61: 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 the off position. Remove the key. 1.
  • Page 62 E. Dispose of fuel properly. Recycle as per local codes. Important: Do not store stabilizer/conditioned fuel over 90 days. 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 available from your Authorized Service Dealer.

  • 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 the disengaged position. 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 bypass valves are not closed tight. 1. Tighten the bypass valves. 2. The pump belt is worn, loose, or 2. Change the belt. broken. 3. The pump belt is off a pulley. 3.

  • Page 65: Schematics

    Schematics Wire Diagram (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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