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Table of Contents
Related Manuals for Toro 74271
Summary of Contents for Toro 74271
- Page 1 Form No. 3357-693 Rev A Z558 Z Master, with 52in, 60in or 72in TURBO FORCE® Side Discharge Mower Model No. 74271—Serial No. 270000001 and Up Model No. 74272—Serial No. 270000001 and Up Model No. 74273—Serial No. 270000001 and Up Register your product at www.Toro.com...
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Page 2: Table Of Contents
finding a dealer, or to register your product. Contents Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service Dealer or Toro Customer Service and have Introduction ............2 the model and serial numbers of your product Safety ..............4 ready. - Page 3 Using the Rollover Protection Cleaning the Engine Screen and the System (ROPS)....16 Oil Cooler ......40 Think Safety First ......17 Cleaning the Engine Fins ....41 Operating the Parking Brake ....18 Brake Maintenance ........41 Starting and Stopping the Adjusting the Parking Brake ....
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Page 4: Safety
Safety hair, loose clothing or jewelry may get tangled in moving parts. Improper use or maintenance by the operator or • Inspect the area where the equipment is to be owner can result in injury. To reduce the potential used and remove all objects such as rocks, toys for injury, comply with these safety instructions and wire which can be thrown by the machine. - Page 5 • Keep hands and feet away from the cutting • Always avoid sudden starting or stopping on units. a slope. If tires lose traction, disengage the blades and proceed slowly off the slope. • Never carry passengers and keep pets and bystanders away.
- Page 6 Wear protective clothing and use insulated tools. • 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.
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Page 7: Slope Chart
Slope Chart... -
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. 1-403005 54-9220 1-523552 58-6520 1. Grease 1-633462 66-1340 1-643339 68-8340... - Page 9 98-4387 1. Warning—wear hearing protection. 98-5954 103-5881 107-1621 105-7798 107-1622 105-7797...
- Page 10 107-1857 107-1861 107-2112 107-1864 107-1613 107-1860...
- 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. 2. No re, open ame, or 7. Wear eye protection; smoking. explosive gases can cause blindness and other injuries 3.
- Page 12 110-5731 1. Engine—stop 5. Continuous variable setting 2. Engine—run 6. Slow 3. Engine—start 7. Power take-off (PTO) 4. Fast 106-7492...
- Page 13 106-9989 107-8076 1. Fast 2. Slow 3. Neutral 4. Reverse...
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Page 14: Product Overview
Product Overview Controls Become familiar with all the controls before you start the engine and operate the machine (Figure 3 and Figure 4). Figure 4 Figure 3 1. Gas cap 4. Throttle 1. Motion control lever 5. Controls 2. Choke 5. -
Page 15: 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 16: Checking The Engine Oil Level
• Cleans the engine while it runs • Eliminates gum-like varnish buildup in the fuel There is no rollover protection when the roll system, which causes hard starting bar is in the down position. Important: Do not use fuel additives •... -
Page 17: Think Safety First
Think Safety First 5. To raise the roll bar, remove the hairpin cotter pins and remove the two pins (Figure 6). Please read all safety instructions and symbols 6. Raise the roll bar to the upright position and in the safety section. Knowing this information install the two pins and secure them with the could help you or bystanders avoid injury. -
Page 18: Operating The Parking Brake
Setting the Parking Brake 1. Move the motion control levers (Figure 16) out to the neutral lock position. 2. Pull up and back on the parking brake lever to set the parking brake (Figure 10). The parking brake lever should stay firmly in the engaged position. - Page 19 3. Move the PTO (power take off) switch to the Off position (Figure 11). Figure 13 Figure 11 1. Throttle—fast 2. Throttle—slow 1. PTO—on 2. PTO—off 6. Turn the ignition key to Start (Figure 14). 4. Move the choke control to the on position When the engines starts, release the key.
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Page 20: Operating The Power Take Off
4. Turn the ignition key to the off position and remove the key (Figure 14). 5. Close the fuel shut off valve before transporting or storing the machine. Refer to Fuel System Maintenance, page 35. Important: Make sure that the fuel shut off valve is closed before transporting or storing the machine, as fuel leakage may occur. -
Page 21: Driving Forward Or Backward
engaged or if you rise from the seat when the PTO is engaged. Machine can spin very rapidly. Operator Testing the Safety Interlock System may lose control of machine and cause personal injury or damage to machine. Test the safety interlock system before you use •... -
Page 22: Stopping The Machine
Set the parking brake when you leave the machine; refer to Setting the Parking Brake. Remember to remove the key from the ignition switch. 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. -
Page 23: Adjusting The Anti-Scalp
Figure 18 1. Height of cut lever 2. Clevis Pin Figure 19 2. To adjust, remove the clevis pin from the 1. Outer roller 4. Bolt height-of-cut bracket (Figure 18). 2. Spacer 5. Nut 3. Bushing 3. Select a hole in the height-of-cut bracket corresponding to the height-of-cut desired and, insert the clevis pin (Figure 18). -
Page 24: Adjusting The Flow Baffle
the cam lock. Adjust the cam lock until the desired locking pressure is achieved. Figure 21 1. Cam lock 3. Rotate cam to increase or decrease locking pressure Figure 20 2. Lever 4. Slot 1. Outer roller 4. Bolt 2. Spacer 5. -
Page 25: Using The Lift Assist Lever
• This position is similar to the benefits of the Important: To adjust, move the lever Toro SFS mower. sideways to unlock seat (Figure 26). Slide the seat to the desired position and release... -
Page 26: Unlatching The Seat
by-pass the pump enabling the wheels to turn (Figure 28). Important: Do not rotate by-pass valves more than 1 turn. This prevents valves from coming out of the body and causing fluid to run out. Figure 26 1. Adjustment lever Unlatching the Seat Push the seat latch rearward to unlatch the seat. -
Page 27: Breaking In A New Machine
Important: Do not use the motion control levers as anchors for tieing the machine down. Without the grass deflector, discharge cover, or complete grass catcher assembly • Secure a trailer to the towing vehicle with mounted in place, you and others are safety chains. -
Page 28: Operating Tips
Operating Tips Fast Throttle Setting Loading a unit onto a trailer or truck increases the possibility of backward For best mowing and maximum air circulation, tip-over and could cause serious injury or operate the engine at the fast throttle position. Air death. - Page 29 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.
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Page 30: Maintenance
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Maintenance Procedure Interval • Change the engine oil. After the rst 8 operating • Check the hydraulic uid level. hours After the rst 25 • Change the hydraulic lter and oil. operating hours • Check the safety interlock system. •... -
Page 31: Lubrication
Lubrication Greasing and Lubrication Lubricate the machine when shown on the Check Service Reference Aid decal (Figure 30). Grease more frequently when operating conditions are extremely dusty or sandy. Grease Type: General-purpose grease. How to Grease 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. -
Page 32: Engine Maintenance
5. Gently slide the primary filter out of the air cleaner body (Figure 32). Avoid knocking the filter into the side of the body. 6. Remove the safety filter only if you intend to replace it. Never attempt to clean the safety filter. -
Page 33: Servicing The Engine Oil
2. If the safety filter is being replaced, carefully 3. Clean around the oil dipstick (Figure 34) so slide it into the filter body (Figure 32). dirt cannot fall into engine. 3. Carefully slide the primary filter over the safety filter (Figure 32). -
Page 34: Servicing The Spark Plug
7. When oil has drained completely, close the drain valve. 8. Remove the drain hose (Figure 35). Note: Dispose of the used oil at a recycling center. Figure 36 1. Engine oil lter 3. Pour new oil of the proper type into the center hole in the new oil filter. -
Page 35: Fuel System Maintenance
tool/feeler gauge to check and adjust the air gap. Install a new spark plug(s) if necessary. • Type: NGK ® BPR4ES or equivalent • Air Gap: 0.030 inch (0.75 mm) Removing the Spark Plug 1. Disengage the PTO, move the motion control levers to the neutral locked position and set Figure 39 the parking brake. -
Page 36: Servicing The Fuel Tank
4. Loosen the hose clamp at the fuel filter and slide it up the fuel line away from the fuel filter (Figure 40). 5. Disconnect the fuel line from the fuel filter (Figure 40). 6. Open the fuel shutoff valve. Note: Allow gasoline to drain into a fuel container can or drain pan (Figure 40). - Page 37 Removing the Battery Battery terminals or metal tools could short against metal machine components causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. • When removing or installing the battery, do not allow the battery terminals to touch any metal parts of the machine.
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Page 38: Servicing The Fuses
Charging the Battery The fuses are as follows: • Main F1-30 amp, blade-type • Alternator F2-25 amp, blade-type Charging the battery produces gasses that 1. Unlatch the seat and raise the seat to gain can explode. access to fuse holder (Figure 43). Never smoke near the battery and keep sparks and flames away from battery. -
Page 39: Drive System Maintenance
Drive System Checking the Tire Pressure Maintenance Check the pressure at the valve stem after every 50 operating hours or monthly, whichever occurs first (Figure 45). Adjusting the Tracking Maintain the air pressure in the rear tires at 13 psi Note: Determine the left and right sides of the (90 kPa). -
Page 40: Adjusting The Caster Pivot
Figure 46 1. Slotted Nut 3. Hole in threaded shaft 2. Two threads or less 4. Washer (if needed) showing 5. Check the distance from bottom of slot in nut to inside edge of hole. Two threads or less should be showing (Figure 46). Figure 47 6. -
Page 41: Cleaning The Engine Fins
Figure 48 Figure 50 1. Oil cooler 1. Brake lever 4. Collar on brake rod 2. Spring (2-3/4 inches/70 5. 3/16–1/4 inch (5–7 mm) 3. Adjusting nuts 6. Jam nut and yoke Cleaning the Engine Fins 3. If adjustment is necessary, loosen the jam nut Every 100 hours clean the engine cylinder and below the spring and tighten the nut directly cylinder head cooling fins. - Page 42 the mower belt if any of these conditions are evident. 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.
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Page 43: Adjusting The Mower Belt
Adjusting the Mower Belt Tension 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 44: Replacing The Pump Drive
Controls System Maintenance Adjusting the Control Handle Neutral Position If motion control levers do not align, or move easily into the console notch, adjustment is required. Adjust each lever, spring and rod separately. Note: Motion control levers must be installed Figure 56 correctly. -
Page 45: Hydraulic System Maintenance
centered allowing lever to pivot outward to the • Before the engine is first started. neutral lock position. • After the first 8 operating hours. 8. If adjustment is needed, loosen the nut and • After every 25 operating hours. jam nut against the yoke (Figure 59). -
Page 46: Replacing The Hydraulic Filter And Oil
Hydraulic fluid escaping under pressure can penetrate skin and cause injury. • If hydraulic fluid is injected into the skin it must be surgically removed within a few hours by a doctor familiar with this type of injury. Gangrene Figure 61 may result if this is not done. -
Page 47: Bleeding The Hydraulic System
Bleeding the Hydraulic System Hydraulic fluid escaping under pressure can The traction system is self bleeding, however, it penetrate skin and cause injury. may be necessary to bleed the system if fluid is • If hydraulic fluid is injected into the skin changed or after work is performed on the system. - Page 48 This adjustment must be made with drive wheels 3. Move the motion control lever forward and turning. reverse, then back to neutral. The wheel must stop turning or slightly creep in reverse. 1. Raise the frame and use jack stands to hold up the machine so drive wheels can rotate freely.
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Page 49: Mower Deck Maintenance
4. Move the motion control lever forward and 5. Lower the mower to the 3 inch (76 mm) reverse, then back to neutral. The wheel must height-of-cut position. stop turning or slightly creep in reverse. 6. Inspect the four chains. The chains need to 5. - Page 50 7. If the measurements at positions B or C are not correct, loosen the bolt attaching the rear chain to the rear support arm (Figure 66). Figure 67 1. Measure here from blade 2. Measure at A and B to hard surface Figure 66 1.
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Page 51: Servicing The Cutting Blades
2. Check the distance between the two large genuine Toro replacement blade. For convenient washers, it needs to be 11-1/8 inches (28.2 cm) sharpening and replacement, you may want to for 52 inch mower decks, 10-1/2 inches keep extra blades on hand. - Page 52 A, of safety conformance of the machine, use genuine the blades (Figure 70). Note this dimension. Toro replacement blades. Replacement blades made by other manufacturers may result in non-conformance with safety standards. Contact with a sharp blade can cause serious injury.
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Page 53: Replacing The Grass Deflector
Sharpening the Blades When sharpening blade, pieces of blade could be thrown and cause serious injury. Wear proper eye protection when sharpening blade. 1. Use a file to sharpen the cutting edge at both ends of the blade (Figure 71). Maintain the Figure 73 original angle. -
Page 54: Cleaning
Important: The grass deflector must be able to lower down into position. Lift the deflector up to test that it lowers into the full down position. Figure 74 1. Bolt 5. Spring installed 2. Spacer 6. Grass Deector 3. Locknut 7. -
Page 55: Storage
Storage stabilizer manufacture. Do not use an alcohol based stabilizer (ethanol or methanol). 1. Disengage the power take off (PTO), set the Note: A fuel stabilizer/conditioner is parking brake and turn the ignition key to off. Remove spark plug wire. Remove the key. most effective when mixed with fresh gasoline and used at all times. -
Page 56: Troubleshooting
Troubleshooting Problem Possible Cause Corrective Action Starter does not crank 1. Blade control (PTO) is 1. Move blade contro (PTO) engaged. 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 57 Problem Possible Cause Corrective Action Machine does not drive. 1. By pass valve is not 1. Tighten the by pass closed tight. valve. 2. Drive or pump belt is 2. Change the belt. worn, loose or broken. 3. Drive or pump belt is off 3.
- Page 58 Problem Possible Cause Corrective Action Blades do not rotate. 1. Drive belt is worn, loose 1. Check the belt tension. or broken. 2. Drive belt is off pulley. 2. Install drive belt and check adjusting shafts and belt guides for correct position.
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Page 59: Schematics
Schematics Wire Diagram (Rev. A) - Page 63 The use of any add-on or modied parts will be grounds for disallowing a warranty claim made in accordance with this article. The Toro® Company will not be liable under this Article to warrant failures of warranted parts caused by the use of an add-on or modied part.
- Page 64 (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. If all other remedies fail, you may contact us at Toro Warranty Company.