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Series Riding Mower with 48in or 52in TURBO FORCE ® Side Discharge Mower Model No. 74922—Serial No. 313000001 and Up Model No. 78922—Serial No. 313000001 and Up Model No. 78924—Serial No. 313000001 and Up g019887 *3375-616* A Register at www.Toro.com.
Whenever you need service, genuine Toro parts, or additional WARNING information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of CALIFORNIA your product ready. Figure 1 identifies the location of the Proposition 65 Warning model and serial numbers on the product.
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 by the operator or owner can the machine; seek shelter. result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety •...
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Safe handling of fuels • Use care when checking blades. Wrap the blade(s) or wear gloves, and use caution when servicing them. Only • To avoid personal injury or property damage, use replace blades. Never straighten or weld them. extreme care in handling gasoline. Gasoline is extremely •...
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.
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...
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Battery Symbols 116-1654 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 116-2643 cause blindness and other injuries 3.
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 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).
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. Specifications Note: Specifications and design are subject to change without notice.
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.
Filling the Fuel Tank Breaking In a New Machine Note: Do not fill the fuel tank completely full. Fill the fuel New engines take time to develop full power. Mower decks tank to the bottom of the filler neck. The empty space in the and drive systems have higher friction when new, placing tank allows the gasoline to expand.
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.
Operating the Mower Blade The use of protective equipment for eyes, ears, feet and head is recommended. Control Switch (PTO) The blade control switch (PTO) starts and stops the mower blades and any powered attachments. Engaging the Blade Control Switch G009027 (PTO) Figure 10...
Operating the Throttle Important: Do not engage starter for more than 5 seconds at a time. If the engine fails to start allow The throttle control can be moved between Fast and Slow a 15 second cool-down period between attempts. positions (Figure 15).
Starting and Stopping the Engine Starting the Engine 1. Raise the ROPS up and lock into place, sit on the seat and fasten the seat belt. 2. Move the motion controls to neutral locked position. G008947 3. Set the parking brake; refer to Setting the Parking Figure 20 Brake.
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.
Testing the Safety Interlock System Using the Motion Control Levers Service Interval: Before each use or daily Test the safety interlock system before you use the machine each time. If the safety system does not operate as described below, have an Authorized Service Dealer repair the safety system immediately.
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.
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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.
Adjusting the Anti-Scalp Rollers Whenever you change the height-of-cut, it is recommended to adjust the height of the anti-scalp rollers. 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake. 2.
Positioning the Flow Baffle The following figures are only recommendations for use. Adjustments will vary by grass type, moisture content, and height of grass. Note: If the engine power draws down and the mower ground speed is the same, open up the baffle. Position A This is the full rear position.
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Use in tall, dense grass mowing conditions. • Use in wet conditions. • Lowers the engine power consumption. • Allows increased ground speed in heavy conditions. • This position is similar to the benefits of the Toro SFS mower. Figure 33 Figure 34...
Positioning the Seat Changing the Seat Suspension The seat can move forward and backward. Position the seat The seat is adjustable to provide a smooth and comfortable where you have the best control of the machine and are most ride. Position the seat where you are most comfortable. comfortable.
Using the Drive Wheel Release Valves WARNING Hands may become entangled in the rotating drive components below the engine deck, which could result in serious injury. Stop the engine, remove the key, and allow all moving parts to stop before accessing the drive wheel release valves.
Using the Side Discharge Transporting Machines The mower has a hinged grass deflector that disperses Use a heavy-duty trailer or truck to transport the machine. clippings to the side and down toward the turf. Ensure that the trailer or truck has all necessary brakes, lighting, and marking as required by law.
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 40). The lower rear section of the machine frame extends back between the rear wheels and serves as a stop for tipping backward.
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.
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 (more often in dirty or dusty conditions). • Check the battery.
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 Where to Grease the Mower Service Interval: Every 50 hours—Grease the mower deck Greasing and Lubrication spindles and idler arm.
Lubricate 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 43 Figure 45 1. Seal guard 2. Spacer nut with wrench flats 6. Remove the dust cap and adjust the caster pivots. Keep the dust cap off until greasing is done.
Engine Maintenance Reinstall the seal guards over the wheel hub and insert wheel into caster fork. Reinstall caster bolt and tighten nut fully. WARNING Important: To prevent seal and bearing damage, check Contact with hot surfaces may cause personal the bearing adjustment often. Spin the caster tire. The tire should not spin freely (more than 1 or 2 revolutions) injury.
Servicing the Engine Oil Oil Type: Detergent oil (API service SF, SG, SH, SJ, or SL) Oil Capacity: with a filter change, 71 ounces (2.1 L); without a filter change, 61 ounces (1.8 L) Viscosity: See the table below. Figure 46 1.
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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.
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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 50). G008804 G008796 Figure 50 5. Start the engine and drive to a flat area. Check the oil level again.
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.
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 comes Hot exhaust system components may ignite first) (more often in dirty or dusty gasoline vapors even after the engine is stopped. conditions).
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...
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WARNING Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. G008804 • Always Disconnect the negative (black) battery cable before disconnecting the positive (red) cable. •...
Servicing the Fuses Important: Always keep the battery fully charged (1.265 specific gravity). This is especially important to The electrical system is protected by fuses. It requires prevent battery damage when the temperature is below no maintenance, however, if a fuse blows check the 32°F (0°C).
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.
Checking the Wheel Lug Nuts Check and torque the wheel lug nuts to 90-95 ft-lb (122-129 N-m). Checking the Wheel Hub Slotted Nut Service Interval: After the first 100 hours Every 500 hours See Figure 63 to determine which slotted nut has been installed on the unit.
Using the Clutch Shim 6. Then tighten nut until the next set of slots line up with the cross hole in shaft. Do not loosen nut to Some later model year units have been built with clutches that align the slot. If required, tighten to the next set contain a brake shim.
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A. Loosen both brake mounting bolts one-half to one full turn as shown below. Note: Do Not remove the brake pole from the field shell/armature. The brake pole has worn to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque.
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 72). G008804 Figure 73 1. Engine guard 4. Fan housing 2.
Check and Clean the Hydraulic Brake Maintenance Unit Shrouds 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.
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.
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Figure 78 1. Position the belt cover 3. Ensure the tab is under the metal catch 2. Slide belt cover under the side catches Figure 77 1. Clutch pulley 5. Square hole in the idler arm for the ratchet 2. Mower belt 6.
Replacing the Hydraulic Pump Controls System Drive Belt Maintenance 1. Disengage the PTO and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving Adjusting the Control Handle parts to stop before leaving the operating position. Position 3.
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.
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 83 Each Hydraulic System Oil Capacity: 52 ounces (1.5 l) per...
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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 under Servicing the Hydraulic System for the correct oil.
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.
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10. Fine-tune the adjustment nut on the front deck lift assembly by turning it (Figure 90). To increase the height, turn the adjustment nut clockwise; to decrease, turn counterclockwise. G017027 Figure 88 1. Deck lift pedal 3. Transport lock 2. Height of cut pin 6.
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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 89). 16. Fine-tune the adjustment nut on the front deck lift assembly by turning it (Figure 90).
If a blade is damaged or worn, replace the cutting edge, position A, of the blades (Figure 94). it immediately with a genuine Toro replacement blade. For Note this dimension. convenient sharpening and replacement, you may want to keep extra blades on hand.
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(Figure 98). Repeat this procedure genuine Toro replacement blades. Replacement blades made until the blade is balanced. by other manufacturers may result in non-conformance with safety standards.
Installing the Blades Removing the Mower Deck 1. Install the blade onto the spindle shaft (Figure 98). 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 mower to WARNING ensure proper cutting.
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Figure 100 1. Right stabilizer Figure 99 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.
Replacing the Grass Deflector Cleaning WARNING Cleaning Under the Mower An uncovered discharge opening could allow the lawn mower to throw objects in the operator's or Service Interval: Before each use or daily bystander's direction and result in serious injury. 1.
Storage C. Stop the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank in the Maintenance Section. Cleaning and Storage D. Restart the engine and run it until it stops. 1. Disengage the power take off (blade control switch E.
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.
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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.
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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.