Form No. 3357-794 Rev A Z558 Z Master, with 60in or 72in TURBO FORCE® Side Discharge Mower Model No. 74272CP—Serial No. 270002001 and Up Model No. 74273CP—Serial No. 270002001 and Up Register your product at www.Toro.
Warning CALIFORNIA Proposition 65 Warning The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. Important: This engine is not equipped with a spark arrester muffler. It is a violation of California Public Resource Code Section 4442 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land. Other states or federal areas may have similar laws. Figure 1 1.
Using the Rollover Protection System (ROPS).................. 16 Think Safety First .............................. 17 Operating the Parking Brake .............. 18 Starting and Stopping the Engine .............................. 18 Operating the Power Take Off (PTO) ............................... 20 The Safety Interlock System............... 20 Driving Forward or Backward ............ 21 Stopping the Machine ........................ 22 Adjusting the Control Lever Resistance .........................
Safety hair, loose clothing or jewelry may get tangled in moving parts. Improper use or maintenance by the operator or owner can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety alert symbol, which means CAUTION, WARNING, or DANGER-“personal safety instruction." Failure to comply with the instruction may result in personal injury or death.
• Keep hands and feet away from the cutting units. • Never carry passengers and keep pets and bystanders away. • Be alert, slow down and use caution when making turns. Look behind and to the side before changing directions. • Slow down and use caution when crossing roads and sidewalks. Stop blades if not mowing. • Be aware of the mower discharge direction and do not point it at anyone. • Do not operate the mower under the influence of alcohol or drugs.
• Carefully release pressure from components with stored energy. • Disconnect battery or remove spark plug wire before making any repairs. Disconnect the negative terminal first and the positive last. Reconnect positive first and negative last. • Use care when checking blades. Wrap the blade(s) or wear gloves, and use caution when servicing them. Only replace blades. Never straighten or weld them. • Keep hands and feet away from moving parts. If possible, do not make adjustments with the engine running.
Slope Chart 7
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.
8-4387 1. Warning—wear hearing protection.
110-2068 1. Read the Operator’s Manual.
Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. 2. No re, open ame, or smoking. 7. 3. Caustic liquid/chemical burn hazard 4. Wear eye protection 8. 5. Read the Operator’s Manual. 9. 10. Keep bystanders a safe distance from the battery. Wear eye protection; explosive gases can cause blindness and other injuries Battery acid can cause blindness or severe burns. Flush eyes immediately with water and get medical help fast. Contains lead; do not discard.
110-5731 1. 2. 3. 4. Engine—stop Engine—run Engine—start Fast 5. 6. 7.
106-9989 107-8076 1. Fast 2. Slow 3. Neutral 13 4.
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. 2. 3. 4. Motion control lever Parking brake lever Height-of-cut lever Fuel cap (both sides) 5. 6. 7. 1. Gas cap 2. Choke 3. Ignition switch Controls Seat belt Roll bar 4. 5. 6. Throttle Power take off (PTO) Hour meter Hour Meter The hour meter records the number of hours the engine has operated. It operates when the engine is running.
Operation In certain conditions during fueling, static electricity can be released causing a spark which can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can damage property. Note: Determine the left and right sides of the machine from the normal operating position. Adding Fuel • Always place gasoline containers on the ground away from your vehicle before filling. Use unleaded regular gasoline suitable for automotive use (85 pump octane minimum).
• Cleans the engine while it runs • Eliminates gum-like varnish buildup in the fuel system, which causes hard starting There is no rollover protection when the roll bar is in the down position. Important: Do not use fuel additives containing methanol or ethanol. • Lower the roll bar only when absolutely necessary. Add the correct amount of gas stabilizer/conditioner to the gas. • Do not wear the seat belt when the roll bar is in the down position.
4. To raise the roll bar, remove the hairpin cotter pins and remove the two pins (Figure 6). Operating on wet grass or steep slopes can cause sliding and loss of control. 5. Raise the roll bar to the upright position and install the two pins and secure them with the hairpin cotter pins (Figure 6). Wheels dropping over edges can cause rollovers, which may result in serious injury, death or drowning. Important: Always use the seat belt with the roll bar in the raised position.
This machine produces sound levels in excess of 85 dBA at the operators ear and can cause hearing loss through extended periods of exposure. Wear hearing protection when operating this machine. Wear protective equipment for your eyes, ears, feet, and head when using this machine. Figure 9 1. Parking brake-ON 2. Parking brake-OFF Figure 8 3. Brake Stop Starting and Stopping the Engine 1. Warning— wear hearing protection Starting the Engine Operating the Parking Brake 1.
Note: A warm or hot engine may not require choking. After engine starts, move choke control to Run position. Figure 13 1. 2. 2. 3. Start 7. After the engine starts, move the choke to off (Figure 11). If the engine stalls or hesitates, move the choke back to on for a few seconds, then move the throttle lever to desired setting. Repeat this as required. Figure 11 1. Choke—on Off Run Stopping the Engine Choke—off 1. Push the PTO to the off position (Figure 10). 5.
The Safety Interlock System Operating the Power Take Off (PTO) The power take off (PTO) switch starts and stops the mower blades and any powered attachments. Engaging the PTO If safety interlock switches are disconnected or damaged the machine could operate unexpectedly causing personal injury. 1. If the engine is cold, allow the engine to warm up 5 to 10 minutes before engaging the PTO. • Do not tamper with the interlock switches. 2.
PTO and rise slightly from the seat; the engine should stop. 4. Sitting on the seat, engage the parking brake, move the PTO switch to off and move the motion control levers to neutral lock position. Now start the engine. While the engine is running, center either motion control and move (forward or reverse); the engine should stop. Repeat for other motion control. 5. Sitting on the seat, disengage the parking brake, move the PTO switch to off and move the motion control levers to neutral lock position.
Stopping the Machine by relocating the clevis pin into different hole locations. To stop the machine, move the traction control levers to neutral and move to locked position, disengage the power take off (PTO), and turn the ignition key to off. 1. Raise the height-of-cut lever to the transport position (also the 5 inch (127 mm) cutting height position) (Figure 17). Set the parking brake when you leave the machine; refer to Setting the Parking Brake. Remember to remove the key from the ignition switch.
Figure 19 1. 2. 3. Figure 18 1. Outer roller 2. Spacer 3. Bushing 4. 5. Bolt Nut Outer roller Spacer Bushing 4. 5. Bolt Nut 4. Select a hole so that the center rollers are positioned to the nearest corresponding height-of-cut desired (Figure 19). 4. Select a hole so that the outer roller is positioned to the nearest corresponding height-of-cut desired (Figure 18). Note: Do not adjust the rollers to support the mower housing. 5. Install the outer roller, bushing, spacer, bolt, and nut (Figure 18).
the cam lock. Adjust the cam lock until the desired locking pressure is achieved. Figure 20 1. Cam lock 3. 2. Lever 4. Rotate cam to increase or decrease locking pressure Slot Figure 22 Positioning the Flow Bafe Position C The following figures are only recommendations for use. Adjustments will vary by grass type, moisture content, and height of grass. This is the full open position. The suggested use for this position is as follows. • Use in tall, dense grass mowing conditions.
Using the Lift Assist Lever The lift assist lever is used along with the height-of-cut lever for raising the mower. This allows for easier raising of the mower. 1. Place your foot onto lift assist lever. 2. Press on the lift assist lever while pulling up on the height-of-cut lever (Figure 24). Figure 24 1. Lift Assist Lever Figure 25 1. Positioning the Seat Seat suspension knob 2. Seat position adjustment lever Changing the Seat Position 2.
Pushing the Machine by Hand Important: Always push the machine by hand. Never tow the machine because hydraulic damage may occur. Pushing the Machine 1. Disengage the power take off (PTO) and turn the ignition key to off. Move the levers to neutral locked position and apply parking brake. Remove the key. 2. Rotate the by-pass valves counterclockwise 1 turn to push. This allows hydraulic fluid to by-pass the pump enabling the wheels to turn (Figure 28).
Using the Side Discharge Important: Do not use the motion control levers as anchors for tieing the machine down. The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. • Secure a trailer to the towing vehicle with safety chains. Without the grass deflector, discharge cover, or complete grass catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris.
Using the Z Stand® The Z Stand raises the front end of the machine to allow you to clean the mower and remove the blades. Loading a unit onto a trailer or truck increases the possibility of backward tip-over and could cause serious injury or death. • Use extreme caution when operating a unit on a ramp. The machine could fall onto someone and cause serious injury or death. • Use only a single, full width ramp; Do Not use individual ramps for each side of the unit.
Figure 31 1. Z Stand (Positioned in slot) 3. 2. Crack in side walk or turf Latch resting on pivot tab Figure 32 1. 2. 4. Set the foot of stand on the ground and rest the latch on the pivot tab (Figure 31). 5. Start the engine and put it at half throttle. Z Stand Latch 3. 4. Locked position Unlocked position 3. Start the engine and place it at half throttle. Disengage the parking brake. Note: For best results, place the foot of stand into seams in sidewalks or into the turf (Figure 31). 4.
Mowing Direction tearing or shredding the grass blades. Tearing and shredding turns grass brown at the edges, which slows growth and increases the chance of disease. 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. Alternate mowing direction to keep the grass standing straight.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the rst 8 operating hours • Change the engine oil. • Check the hydraulic uid level. After the rst 25 operating hours Before each use or daily • Change the hydraulic lter and oil. • • • • Check the safety interlock system. Check the engine oil. Check the mower blades. Clean the mower deck. Every 25 hours • Check the hydraulic uid level. Every 50 hours • Grease the mower bearings.
Lubrication Greasing and Lubrication Lubricate the machine when shown on the Check Service Reference Aid decal (Figure 33). 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. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Figure 33 3.
6. Remove the safety filter only if you intend to replace it. Never attempt to clean the safety filter. If the safety filter is dirty, then the primary filter is damaged and you should replace both filters. 7. Inspect the primary filter for damage by looking into the filter while shining a bright light on the outside of the filter. Holes in the filter will appear as bright spots. If the filter is damaged discard it. Figure 34 4. Grease the idler pulley pivot (Fig. 38).
3. Carefully slide the primary filter over the safety filter (Figure 35). Ensure that it is fully seated by pushing on the outer rim of the filter while installing it. Note: Do not press on the soft inside area of the filter. 4. Install the air cleaner cover with the side indicated as UP facing up and secure the latches (Figure 35). Servicing the Engine Oil Change the engine oil as follows: • After the first 8 operating hours. • After every 100 operating hours.
Note: Dispose of the used oil at a recycling center. Figure 39 1. 3. Pour new oil of the proper type into the center hole in the new oil filter. Stop pouring when the oil reaches the bottom of the threads. Allow a minute or two for the oil to be absorbed by filter material. 4. Apply a thin coat of new oil to the rubber gasket on the replacement filter (Figure 40). 5. Install the replacement oil filter to the filter adapter.
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 the parking brake. Figure 42 1. Canter electrode insulator 2. Side electrode 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Air gap (not to scale) 2.
4. Loosen the hose clamp at the fuel filter and slide it up the fuel line away from the fuel filter (Figure 43). 5. Disconnect the fuel line from the fuel filter (Figure 43). 6. Open the fuel shutoff valve. Note: Allow gasoline to drain into a fuel container can or drain pan (Figure 43). Note: Now is the best time to install a new fuel filter because the fuel tank is empty. 7. Install the fuel line onto the fuel filter. Slide the hose clamp close to the fuel filter to secure the fuel line (Figure 43).
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. • Do not allow metal tools to short between the battery terminals and metal parts of the machine. Figure 44 1. 2. 3. 4. 5. 6.
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 can explode. 1. Unlatch the seat and raise the seat to gain access to fuse holder (Figure 46). 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). 1.
Drive System Maintenance Checking the Tire Pressure Check the pressure at the valve stem after every 50 operating hours or monthly, whichever occurs first (Figure 48). Adjusting the Tracking Maintain the air pressure in the rear tires at 13 psi (90 kPa). Uneven tire pressure can cause uneven cut. Check the tires when they are cold to get the most accurate pressure reading. Note: Determine the left and right sides of the machine from the normal operating position.
Figure 49 1. Slotted Nut 2. Two threads or less showing 3. 4. Hole in threaded shaft Washer (if needed) 5. Check the distance from bottom of slot in nut to inside edge of hole. Two threads or less should be showing (Figure 49). Figure 50 6. If more than two threads are showing remove nut and install washer between hub and nut. 1. 2. 7. Torque the slotted nut to 125 ft-lb. (170 N⋅m) (Figure 49). Spring Washers Lock Nut 3. Dust Cap 4.
Figure 51 Figure 53 1. Oil cooler 1. Brake lever 2. Spring (2-3/4 inches/70 mm) 3. Adjusting nuts Cleaning the Engine Fins 4. 5. Collar on brake rod 3/16–1/4 inch (5–7 mm) 6. Jam nut and yoke 3. If adjustment is necessary, loosen the jam nut below the spring and tighten the nut directly below the yoke (Figure 53). Turn the nut until the correct measurement is obtained. Tighten the two nuts together and repeat on opposite side of unit. 4.
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. 3. Remove the belt covers. 4. Loosen the nut securing the idler plate and move the idler plate to relieve the belt tension on the idler pulley (Figure 54). 5. Remove the nut, washer and belt guide from the rear leftside pulley. 6.
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. 3. Raise the mower to the transport position. Important: Check the amount of twist in the belt between the pulleys. Make sure it is only what is specified in Figure 54.
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 correctly. See Installing the Motion Control Levers in the set up instructions. 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. 2.
centered allowing lever to pivot outward to the neutral lock position. 8. If adjustment is needed, loosen the nut and jam nut against the yoke (Figure 62). 9. Apply slight rearward pressure on the motion control lever, turn the head of the adjustment bolt in the appropriate direction until the control lever is centered in the neutral lock position (Figure 62). • Before the engine is first started. • After the first 8 operating hours. • After every 25 operating hours.
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 may result if this is not done. Figure 64 1. • Keep body and hands away from pin hole leaks or nozzles that eject high pressure hydraulic fluid. Hydraulic lter 4. Apply a thin coat hydro fluid to the rubber gasket on the replacement filter (Figure 65).
Bleeding the Hydraulic System Hydraulic fluid escaping under pressure can penetrate skin and cause injury. The traction system is self bleeding, however, it may be necessary to bleed the system if fluid is changed or after work is performed on the system. • 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 may result if this is not done. 1.
This adjustment must be made with drive wheels turning. 3. Move the motion control lever forward and 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. 4. Open the throttle to fast. Make sure wheel remains stopped or slightly creeps in reverse, adjust if necessary. 2. Unlatch the seat, tilt the seat forward and disconnect electrical connector from the seat safety switch.
Note: Adjust the rear chains to the top of the slot, where they are attached to the mower. 6. Tighten the locknuts at the ball joints (Figure 67). Electrical system will not perform proper safety shut off with jumper wire installed. • If one rear chain is loose, lower (loosen) the front support arm on the same side. Refer to Adjusting the Front-to-Rear Mower Pitch. • Remove jumper wire from wire harness connector and plug connector into seat switch when adjustment is completed.
Figure 69 1. 2. 3. 4. Rear chain Rear support arm Bolt Jam Nut 5. 6. 7. Figure 70 Adjustment bolt Front swivel Front support arm 1. 8. Loosen the jam nut under the rear support arm and adjust the adjustment bolt to get a measurement of 3-1/8 to 3-1/4 inches (Figure 69). Measure here from blade to hard surface 2. Measure at A and B 2. Measure the right blade at the A location, from a level surface to the cutting edge of the blade tip (Figure 70). 3. Record this measurement.
Adjusting the Compression Spring 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. For convenient sharpening and replacement, you may want to keep extra blades on hand. 1. Raise the mower lift lever to the transport position. 2. Check the distance between the two large washers, it needs to be 11-1/8 inches (28.
2. Rotate the opposite ends of the blades forward. 3. Measure from a level surface to the cutting edge of the blades at the same position as in step 1 above. The difference between the dimensions obtained in steps 1 and 2 must not exceed 1/8 inch (3 mm). If this dimension exceeds 1/8 inch (3 mm), the blade is bent and must be replaced; refer to Removing the Blades and Installing the Blades. Figure 72 1. Cutting Edge 2. Curved Area 3.
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 74). Maintain the original angle. The blade retains its balance if the same amount of material is removed from both cutting edges. Figure 76 1. Sail Area of Blade 2. Blade 3. Spring Disk 4. 5. Blade Bolt Cone Towards Bolt Head 3.
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 77 1. Bolt 2. Spacer 3. Locknut 5. 6. 7. 4. Spring 8. Spring installed Grass Deector L end of spring, place behind deck edge before installing bolt J hook end of spring Cleaning Cleaning Under the Mower Remove the grass buildup under the mower daily. 1.
Storage stabilizer manufacture. Do not use an alcohol based stabilizer (ethanol or methanol). 1. Disengage the power take off (PTO), set the parking brake and turn the ignition key to off. Remove spark plug wire. Remove the key. Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline and used at all times. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine and hydraulic system.
Troubleshooting Problem Starter does not crank Possible Cause Corrective Action 1. Blade control (PTO) is engaged. 2. Parking brake is not on. 3. Operator is not seated. 4. Battery is dead. 5. Electrical connections are corroded or loose. 1. Move blade contro (PTO) to disengaged. 2. Set the parking brake. 3. Sit on the seat. 4. Charge the battery. 5. Check the electrical connections for good contact. 6. Replace fuse. 7. Contact an Authorized Service Dealer. 6. Fuse is blown. 7.
Problem Machine does not drive. Abnormal vibration. Possible Cause 1. By pass valve is not closed tight. 2. Drive or pump belt is worn, loose or broken. 3. Drive or pump belt is off a pulley. 4. Broken or missing idler spring. 5. Hydraulic uid level is low or too hot. 1. Tighten the by pass valve. 2. Change the belt. 1. Cutting blade(s) is/are bent or unbalanced. 2. Blade mounting bolt is loose. 3. Engine mounting bolts are loose. 4. Loose engine pulley, idler pulley, or blade pulley. 5.
Problem Blades do not rotate. Possible Cause 1. Drive belt is worn, loose or broken. 2. Drive belt is off pulley. 3. Deck belt is worn, loose or broken. 4. Deck belt is off pulley. 5. Broken or missing idler spring. 59 Corrective Action 1. Check the belt tension. 2. Install drive belt and check adjusting shafts and belt guides for correct position. 3. Install new deck belt. 4. Install deck pulley and check the idler pulley, idler arm and spring for correct position and function. 5. Replace the spring.
Schematics Wire Diagram (Rev.
Evaporative Emission Control Warranty Statement California Evaporative Emission Control Warranty Statement Your Warranty Rights and Obligations Introduction The California Air Resources Board and The Toro® Company are pleased to explain the evaporative emission control system’s warranty on your 2007 model year equipment. In California, new equipment that use small off-road engines must be designed, built, and equipped to meet the State’s stringent anti-smog standards.
LCE The Toro Total Coverage Guarantee A Limited Warranty Conditions and Products Covered Items and Conditions Not Covered The Toro® Company and its afliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair the listed Toro Products if defective in materials or workmanship.