Toro 74253 Operator's Manual
With a 60in or 72in turbo force side discharge mower
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Also See for 74253:
- Setup instructions (13 pages) ,
- Operator's manual (60 pages) ,
- Service manual (272 pages)
Related Manuals for Toro 74253
Summary of Contents for Toro 74253
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Page 1: Side Discharge
Form No. 3358-911 Rev A Z580 Z Master ® with a 60in or 72in TURBO FORCE Side Discharge ® Mower Model No. 74253—Serial No. 280000001 and Up Model No. 74254—Serial No. 280000001 and Up Register at www.Toro.com. Original Instructions (EN) -
Page 2: Table Of Contents
Figure 1 1. Model and serial number location Genuine Toro spark arresters are approved by the USDA Forestry Service. Important: This engine is equipped with a spark Model No. - Page 3 Using the Rollover Protection System Replacing the Mower Belt for 72in Mower (ROPS) ............15 Decks............. 45 Think Safety First ..........17 Adjusting the Mower Belt Tension for 72 inch Operating the Parking Brake ....... 18 Mower Decks ..........46 Starting and Stopping the Engine ......
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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: Slope Operation
• Be certain that the seat belt can be released quickly decals. in the event of an emergency. • Be aware there is no rollover protection when the • Use only Toro approved attachments. Warranty may roll bar is down. be voided if used with unapproved attachments. -
Page 6: Slope Chart
Slope Chart... -
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 1-403005 66-1340 1-523552 65-2690 1-643253 68-8340 98-4387 1. - Page 8 98-5954 105-7798 107-1860 1. Height of cut 107-1613 107-1857 107-1861 107-1864...
- Page 9 107-2449 107-2102 108-5981 107-2112 110-2067 107-2114...
- Page 10 110-3853 1. Cutting/dismemberment 2. Remove the ignition key hazard, fan and and read the instructions 110-2068 before servicing or entanglement hazard, belt. performing maintenance. 1. Read the Operator’s Manual. 110-5772 1. Engine—stop 5. Continuous variable setting 2. Engine—run 6. Slow 3.
- Page 11 Manufacturer’s Mark 1. Indicates the blade is identified as a part from the original 110-6220 machine manufacturer. 110-6221 106-7492...
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Page 12: Product Overview
106-9989 107-9309 1. Warning—read the Operator’s Manual for information on charging the battery; contains lead; do not discard. 2. Read the Operator’s Manual. 110-0819 Product Overview... -
Page 13: Controls
Use these times for scheduling regular maintenance (Figure 4). Temperature Light The temperature light comes on when the engine is over heating (Figure 4). Audible Alarm This machine has an audible alarm that alerts the user to turn off the engine or engine damage can occur from over heating. -
Page 14: Operation
Operation In certain conditions during fueling, static Note: Determine the left and right sides of the electricity can be released causing a spark machine from the normal operating position. which can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and Adding Fuel others and can damage property. -
Page 15: Checking The Engine Oil Level
Important: Do not use fuel additives containing methanol or ethanol. Add the correct amount of gas stabilizer/conditioner to the gas. Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline. To minimize the chance of varnish deposits in the fuel system, use fuel stabilizer at all times. - Page 16 Important: Lower the roll bar only when absolutely necessary. 1. Remove the hairpin cotter pins and remove the two pins (Figure 7). 2. Lower the the roll bar to the down position. There are two down positions. See Figure 6 for the positions.
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Page 17: 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. 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 18: Operating The Parking Brake
Operating the Parking Brake Starting and Stopping the Engine Always set the parking brake when you stop the machine or leave it unattended. Starting the Engine Setting the Parking Brake Note: This machine does not have a manual choke. This machine is equipped with an direct fuel injection 1. -
Page 19: Operating The Power Take Off (Pto)
Operating the Power Take Off Important: Do not engage starter for more than 5 seconds at a time. If the engine fails (PTO) to start allow a 15 second cool-down period between attempts. Failure to follow these The power take off (PTO) switch starts and stops the instructions can burn out the starter motor. -
Page 20: Driving Forward Or Backward
Understanding the Safety Interlock the throttle control in the fast position for best System performance. Always operate in the full throttle position when mowing. The safety interlock system is designed to prevent the engine from starting unless: • You are sitting on the seat. Machine can spin very rapidly. -
Page 21: Stopping The Machine
Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended. Always remove the ignition key and set the parking brake when leaving the machine unattended, even if just for a few minutes. Adjusting the Height-of-Cut The height-of-cut is adjusted from 1-1/2 to 5 inch (38 to 127 mm) in 1/4 inch (6 mm) increments by... -
Page 22: Adjusting The Flow Baffle
2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. After adjusting the height-of-cut, adjust the rollers by removing the flange nut, bushing, spacer, and bolt (Figure 17 , Figure 18 and Figure 19 ). Note: The two middle rollers will not have a spacer (Figure 18). -
Page 23: Positioning The Flow Baffle
This is the full rear position. The suggested use for this • Allows increased ground speed in heavy conditions. position is a follows. • This position is similar to the benefits of the Toro • Use for short, light grass mowing conditions. SFS mower. -
Page 24: Positioning The Seat
Positioning the Seat Pushing the Machine 1. Disengage the power take off (PTO) and turn the The seat can move forward and backward. Position the ignition key to off. Move the levers to neutral locked seat where you have the best control of the machine position and apply parking brake. -
Page 25: Using The Side Discharge
Using the Side Discharge The mower has a hinged grass deflector that disperses Driving on the street or roadway without turn clippings to the side and down toward the turf. signals, lights, reflective markings, or a slow moving vehicle emblem is dangerous and can lead to accidents causing personal injury. -
Page 26: Operating Tips
to thoroughly cut grass clippings, so do not set the height-of-cut so low as to totally surround the mower by uncut grass. Always try to have one side of the Loading a unit onto a trailer or truck increases mower free from uncut grass, which allows air to be the possibility of backward tip-over and could drawn into the mower. -
Page 27: Blade Maintenance
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 28: Maintenance
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Maintenance Procedure Interval • Change the engine oil. • Check the engine cooling system level. After the first 8 hours • Adjust the mower belt tension for 72 inch mower decks. • Check the hydraulic fluid. •... -
Page 29: Lubrication
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 Lubricate the machine when shown on the Check Service Reference Aid decal (Figure 28). -
Page 30: Greasing The Mower Deck And Belt Idlers
Greasing the Mower Deck and Belt Idlers Service Interval: Every 25 hours—Grease the mower deck and spindles. Every 25 hours—Grease the pump belt idler arm. Grease with No. 2 general purpose lithium base or molybdenum base grease. Important: Make sure cutting unit spindles are full of grease weekly. -
Page 31: Engine Maintenance
Engine Maintenance Contact with hot surfaces may cause personal injury. Keep hands, feet, face, clothing and other body parts away the muffler and other hot surfaces. Servicing the Air Cleaner Note: Check the filters more frequently if operating conditions are extremely dusty or sandy. Figure 31 Removing the Air Filter Service Interval: Every 250 hours (more often in dirty... -
Page 32: Servicing The Engine Oil
Figure 33 Note: Using multi grade oils (5W-20, 10W-30, and 10W-40) will increase oil consumption. Check the oil level more frequently when using them. Figure 32 Checking the Engine Oil Level 1. Air cleaner cover 3. Air filter body 2. Air filter Service Interval: Before each use or daily Note: Check the oil when the engine is cold. -
Page 33: Changing The Oil
Figure 34 1. Muffler 3. Right side fuel cap 2. Dipstick Figure 35 6. Pull the oil dipstick and wipe the metal end clean 1. Oil drain valve 2. Oil drain hose (Figure 34). 7. Slide the oil dipstick fully into the engine. Pull the 9. -
Page 34: Servicing The Spark Plug
Removing the Spark Plug 1. Disengage the 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 35: Fuel System Maintenance
Fuel System Maintenance Servicing the Electronic Fuel Injection System This machine contains an electronic fuel injection Figure 40 system. It controls the fuel flow under different operating conditions. 1. Canter electrode insulator 3. Air gap (not to scale) 2. Side electrode Checking the Malfunction Indicator Light 2. -
Page 36: Servicing The Fuel Tank
Electrical System Maintenance Servicing the Battery Warning CALIFORNIA Proposition 65 Warning Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling. Figure 41 1. -
Page 37: Installing The Battery
Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. • Always Disconnect the negative (black) battery cable before disconnecting the positive (red) cable. • Always Reconnect the positive (red) battery cable before reconnecting the negative (black) cable. -
Page 38: Servicing The Fuses
Charging the Battery • Optional Accessory • Ignition, 30 amp, blade-type 1. Unlatch the engine hood and raise the engine hood to gain access to fuse holder (Figure 45). Charging the battery produces gasses that can explode. 2. To replace the fuses, pull out on the fuse to remove Never smoke near the battery and keep sparks and flames away from battery. -
Page 39: Drive System Maintenance
Drive System Maintenance Adjusting the Tracking The machine has a knob for adjusting the tracking located under the seat. Important: Adjust the handle neutral and hydraulic pump neutral before adjusting the tracking. Refer to Adjusting the Handle Neutral in Controls System Maintenance , page 48 and Adjusting the Hydraulic Pump Neutral in Hydraulic System Maintenance , page 49. -
Page 40: Checking The Wheel Hub Slotted Nut
Checking the Wheel Hub 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating Slotted Nut position. 3. Remove the dust cap from caster and tighten lock Service Interval: Every 100 hours nut (Figure 49). -
Page 41: Adjusting The Electric Clutch
6. Remove the right rear wheel from the machine. 7. Locate the hole in the frame and remove the side plug in the gear box. (Figure 50). 8. The oil needs be up to the opening of the gear box hole. -
Page 42: Cooling System Maintenance
Cooling System 11. Repeat this for the remaining slots. 12. Check each slot again and make slight adjustments Maintenance until the feeler gauge between the rotor and armature with very slight contact between them. Servicing the Cooling System Discharge of hot pressurized coolant or touching hot radiator and surrounding parts can cause severe burns. - Page 43 1. Position the machine on a level surface, stop the engine, and set the parking brake. 2. Unlatch the seat and tilt the seat up. 3. With the engine cool, check the overflow bottle level. The fluid needs to be up to the bump on the outside of the overflow bottle (Figure 54).
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Page 44: Brake Maintenance
Brake Maintenance Belt Maintenance Inspecting the Belts Adjusting the Parking Brake Service Interval: Every 100 hours Service Interval: Every 25 hours Every 200 hours Check the belts for squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, 1. -
Page 45: Replacing The Mower Belt For 72In Mower Decks
Figure 59 Figure 58 1. Belt cover 3. Insert slot into the tab 2. Latch 1. Mower belt 4. Belt guide 2. Mower spindle pulley 5. Gearbox pulley 3. Mower idler pulley 6. Spring 4. Loosen the idler plate bolts holding the idler plate (Figure 62). -
Page 46: Adjusting The Mower Belt Tension For 72 Inch Mower Decks
10. Install the idler spring to the two posts (Figure 58 7. Rotate the ratchet or breaker bar to move the idler and Figure 62). plate until the idler spring is between 10 and 10-1/4 inches (25.4 and 26.0 cm) from post to post as 11. -
Page 47: Replacing The Pump Drive Belt
Replacing the Pump Drive Belt Service Interval: Every 50 hours—Check the pump drive belt. Note: Remove the PTO drive belt first if the pump drive belt needs to be replaced. 1. Tilt the seat forward and remove the front engine panel. -
Page 48: Controls System Maintenance
Controls System 9. Apply slight rearward pressure on the motion control lever, turn the head of the adjustment bolt Maintenance in the appropriate direction until the control lever is centered in the neutral lock position (Figure 67). Adjusting the Control Handle Note: Keeping rearward pressure on the lever will keep the pin at the end of the slot and allow the Neutral Position... -
Page 49: Hydraulic System Maintenance
Hydraulic System Maintenance Servicing the Hydraulic System Fluid Type: Mobil 1 15W-50 synthetic motor oil or equivalent synthetic oil. Figure 68 Important: Use oil specified or equivalent. Other 1. Cap 3. Cold fluid level-full fluids could cause system damage. 2. Baffle 4. -
Page 50: Bleeding The Hydraulic System
Important: Do not substitute automotive oil 12. Start the engine and let it run for about two minutes filter or severe hydraulic system damage may to purge air from the system. Stop the engine and result. check for leaks. If one or both wheels will not drive, refer to Bleeding Hydraulic System. -
Page 51: Setting The Hydraulic Pump Neutral Position
1. Raise the frame and block up the machine so drive wheels can rotate freely. Hydraulic fluid escaping under pressure can 2. Disconnect the electrical connector from the seat penetrate skin and cause injury. safety switch. Temporarily install a jumper wire across terminals in the wiring harness connector. - Page 52 Figure 73 Figure 72 1. Double nuts 4. Locknut 2. Pump rod 5. Ball joint 1. Tracking knob 4. Turn this way to track right 3. Adjustment bolt 6. Pumps 2. Hydraulic tank 5. Turn this way to track left 3.
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Page 53: Mower Deck Maintenance
Mower Deck Maintenance Leveling the Mower at Three Positions Important: There are only three measuring positions needed to level the mower. Setting Up the Machine 1. Position mower on a flat surface. Figure 74 2. Disengage the PTO, move the motion control levers 1. - Page 54 8. Loosen the jam nut under the rear support arm and 8. Adjust the lift nuts on both the left and the right adjust the adjustment bolt to get a measurement of side of the machine to achieve 1/4 to 3/8 inch 3-1/8 to 3-1/4 inches (80 to 83 mm) (Figure 75).
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Page 55: Servicing The Cutting Blades
Figure 78 blades as necessary. If a blade is damaged or worn, 1. Cutting Edge 3. Wear/slot Forming replace it immediately with a genuine Toro replacement 2. Curved Area 4. Crack blade. For convenient sharpening and replacement, you may want to keep extra blades on hand. -
Page 56: Removing The Blades
To ensure optimum procedure until the blade is balanced. performance and continued safety conformance of the machine, use genuine TORO replacement blades. Replacement blades made by other manufacturers may result in non-conformance with safety standards. -
Page 57: Replacing The Grass Deflector
Replacing the Grass Deflector Cleaning Cleaning Under the Mower An uncovered discharge opening could allow Service Interval: Before each use or daily the lawn mower to throw objects in the 1. Disengage the PTO, move the motion control levers operator’s or bystander’s direction and result to the neutral locked position and set the parking in serious injury. -
Page 58: Storage
Storage Note: A fuel stabilizer/conditioner is most effective when mixed with fresh fuel and used at all times. Cleaning and Storage B. Run the engine to distribute conditioned fuel 1. Disengage the power take off (PTO), set the parking through the fuel system (5 minutes). brake, and turn the ignition key to Off. -
Page 59: Troubleshooting
Troubleshooting Problem Possible Cause Corrective Action Starter does not crank 1. Blade control (PTO) is engaged. 1. Move blade contro (PTO) to disengaged. 2. Parking brake is not on. 2. Set the parking brake. 3. Operator is not seated. 3. Sit on the seat. 4. - Page 60 Problem Possible Cause Corrective Action Uneven cutting height. 1. Blade(s) not sharp. 1. Sharpen the blade(s). 2. Cutting blade(s) is/are bent. 2. Install new cutting blade(s). 3. Mower is not level. 3. Level mower from side-to-side and front-to-rear. 4. Underside of mower is dirty. 4.
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Page 61: Schematics
Schematics Wire Diagram (Rev. A) - Page 62 Notes:...
- Page 63 Notes:...
- Page 64 Countries Other than the United States or Canada Customers who have purchased Toro products exported from 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 dissatised with your Distributor’s service or have difculty obtaining guarantee information, contact the Toro importer.