Form No. 3356-136 Rev C Z334 Z Master with a 34in 7-Gauge Side Discharge Mower or Z340 Z Master with a 40in 7-Gauge Side Discharge Mower Model No. 74408—Serial No. 270000001 and Up Model No. 74408CP—Serial No. 270000001 and Up Model No. 74409—Serial No. 270000001 and Up Model No. 74409CP—Serial No. 270000001 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.
Product Overview ............................................. 11 Controls ........................................... 11 Operation.......................................................... 12 Adding Fuel ...................................... 12 Checking the Engine Oil Level ........... 13 Think Safety First .............................. 13 Operating the Parking Brake .............. 14 Starting and Stopping the Engine .............................. 14 Operating the Power Take Off (PTO) ...................
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.
• Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals. • Never fill containers inside a vehicle or on a truck or trailer with a plastic liner. Always place containers on the ground away from your vehicle before filling. • Use only Toro approved attachments. Warranty may be voided if used with unapproved attachments. • Keep the nozzle in contact with the rim of the fuel tank or container opening at all times until the fueling is complete.
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. 68-8340 1-403005 98-5954 54-9220 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. 66-1340 9. 10.
112-3830 109-2356 1. Fast 2. Slow 3. 4.
112-3833 10
Product Overview Using the Hour Meter The hour meter (Figure 5) records the number of hours the engine has operated. It operates when the engine is running. Use these times for scheduling regular maintenance. Figure 3 1. 2. 3. 4. Side discharge chute Height-of-cut selection pin Controls Motion control lever 5. 6. 7. 8. Fuel cap (both sides) Parking brake lever Mower deck Front caster wheel Figure 5 1.
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 Operating on wet grass or steep slopes can cause sliding and loss of control. Important: Do not use fuel additives containing methanol or ethanol. Wheels dropping over edges can cause rollovers, which may result in serious injury, death or drowning. Add the correct amount of gas stabilizer/conditioner to the gas. There is no rollover protection when the roll bar is down.
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. Use protective equipment for your eyes, hearing, feet, and head. Figure 9 1. Parking brake – Set/ON 2. Parking brake – Released/OFF Figure 8 1.
Note: A warm or hot engine may not require choking. After engine starts, move choke control to Run position. 5. Move the throttle control to the fast position before starting a cold engine (Figure 11). Stopping the Engine 1. Push the PTO to the off position (Figure 10). 2. Move the throttle lever midway between the slow and fast positions (Figure 11). 3. Let the engine idle for 60 seconds. 4. Turn the ignition key to the off position and remove the key (Figure 12). 5.
Testing the Safety Interlock System 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. 1. Sitting on the seat, engage the parking brake and move the PTO to on. Try starting the engine; the engine should not crank. Figure 13 1. PTO-On (knob out) 2. 2. Sitting on the seat, engage the parking brake and move the PTO to off.
Machine can spin very rapidly. Operator may lose control of machine and cause personal injury or damage to machine. • Use caution when making turns. • Slow the machine down before making sharp turns. Driving Forward 1. Release the parking brake; refer to Releasing the Parking Brake in Operation, page 12. 2. Move the levers to the center, the un-locked position. 3. To go forward, slowly push the motion control levers forward (Figure 14).
page 12. 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. Adjusting the Height-of-Cut The height-of-cut is adjusted from 1 to 5 inch (25 to 127 mm) in 1/4 inch (6 mm) increments by relocating the clevis pin into different hole locations. 1.
Adjusting the Anti-Scalp Rollers 1. Raise the seat and loosen the adjustment bolts (Figure 18). 2. Move the seat to the desired position and tighten the bolts. Whenever you change the height-of-cut, adjust the height of the anti-scalp rollers. 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.
2 1 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. Contact with rotating mower blade(s) and thrown debris will cause injury or death. 1 • Never remove the grass deflector from the mower because the grass deflector routes material down toward the turf. If the grass deflector is ever damaged, replace it immediately. • Never put your hands or feet under the mower.
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 20). The lower rear section of the tractor frame extends back between the rear wheels and serves as a stop for tipping backward. Having a full width ramp provides a surface for the frame members to contact if the unit starts to tip backward.
Operating Tips Long Grass Fast Throttle Setting If the grass is ever allowed to grow slightly longer than normal, or if it contains a high degree of moisture, raise the cutting height higher than usual and cut the grass at this setting. Then cut the grass again using the lower, normal setting. For best mowing and maximum air circulation, operate the engine at the fast throttle position.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the rst 8 operating hours • • • • After the rst 250 operating hours Before each use or daily Check for any loose fasteners and tighten them. Change the engine oil. Tighten the wheel lug nuts. Check the hydraulic uid. • Change the hydraulic lters and oil. • • • • • • Check the safety system. Check the engine oil level. Clean the air intake screen. Check the brake. Check the mower blades.
Lubrication Greasing and Lubrication Lubricate the machine when shown on the Check Service Reference Aid decal (Figure 21). 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. Figure 21 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3.
3. Raise the front of the machine and support it with jack stands. 4. Remove then nut and bolt holding the caster wheel to the front caster fork (Figure 25). 5. Remove the seal guard from the wheel hub (Figure 25). Figure 23 Figure 25 1. 2. 3. Caster fork Bolt Seal guard 4. 5. Caster wheel Nut 6. Remove one of the spacer nuts (with wrench flats) from the axle (Figure 27). Note: Thread locking adhesive has been applied to the spacer nuts. 7.
Figure 27 1. Spacer nut 2. Bearing seal (new seals required) 3. Bearing Figure 26 4. 5. Caster wheel Nut and axle assembled Engine Maintenance 1. 1/8 inch (3 mm) of the nut past the axle Servicing the Air Cleaner 12. Install the assembled nut and axle into the wheel on the side with the bearing and a new seal (Figure 27). Service Interval/Specication Foam element: Clean it after every 25 operating hours. 13.
5. Remove the 2 wing nuts and remove the air cleaner assembly (Figure 28). 2. Inspect the element for tears, an oily film, or damage to the rubber seal. 6. Carefully pull the foam element off the paper element (Figure 28). 3. Replace the paper element if it is damaged. Installing the Foam and Paper Elements Important: To prevent engine damage, always operate the engine with the complete foam and paper air cleaner assembly installed. 1.
Important: Do not overfill the crankcase with oil and run the engine; engine damage can result. Changing the Oil 1. Start the engine and let it run five minutes. This warms the oil so it drains better. 2. Park the machine so that the drain side is slightly lower than the opposite side to assure the oil drains completely. 3. Disengage the PTO and set the parking brake. Figure 29 4. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position.
3. Disconnect the wires from the spark plugs (Figure 33). Figure 32 1. Oil lter 2. Adapter Figure 33 1. 3. Apply a thin coat of new oil to the rubber gasket on the replacement filter (Figure 32). 4. Install the replacement oil filter to the filter adapter, turn the oil filter clockwise until the rubber gasket contacts the filter adapter, then tighten the filter an additional 3/4 turn (Figure 32). 5. Fill the crankcase with the proper type of new oil; refer to Servicing the Engine Oil. 6.
Important: Always replace the spark plugs when it has a black coating, worn electrodes, an oily film, or cracks. 3. Check the gap between the center and side electrodes (Figure 34). Bend the side electrode (Figure 34) if the gap is not correct. 6. Pull the fuel line off of the fuel filter (Figure 35). Installing the Spark Plugs 1. Install the spark plugs and the metal washer. Ensure that the air gap is set correctly. 2. Tighten the spark plugs to 16 ft-lb (22 N•m). 3.
Electrical System Maintenance Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. Servicing the Battery Warning • Always Disconnect the negative (black) battery cable before disconnecting the positive (red) cable. CALIFORNIA Proposition 65 Warning • Always Reconnect the positive (red) battery cable before reconnecting the negative (black) cable.
Charging the Battery Charging the battery produces gasses that can explode. 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. Charge battery for 10 to 15 minutes at 25 to 30 amps or 30 minutes at 4-6 amps. 2.
Drive System Maintenance • Main, F1-20 amp, blade-type • Charge circuit, F2-20 amp, blade-type 1. Raise the seat to gain access to the fuses on the left side of the machine (Figure 38). Checking the Tire Pressure 2. To replace the fuses, pull out on the fuse to remove it. Check the pressure at the valve stem after every 50 operating hours or monthly, whichever occurs first (Figure 39). 3. Install a new fuse (Figure 38). Maintain the air pressure in the rear tires at 13 psi (90 kPa).
Important: Make sure spring washers are installed correctly as shown in Figure 40. 4. Clean the debris and grass from the engine parts. 5. Install air intake screen, recoil starter and fan housing (Figure 41). 5. Install the dust cap (Figure 40). Figure 40 1. Spring Washers 2. Lock Nut 3. Dust Cap Cooling System Maintenance Figure 41 1. Air intake screen 2. Fan housing 3. Recoil starter Cleaning the Air Intake Screen 4. 5.
4. If the wheels do not lock, see an Authorized Service Dealer for maintenance. 5. Release the brakes and move the neutral/brake locks to the neutral position. The wheels should rotate freely, if not; see an Authorized Service Dealer for maintenance. Belt Maintenance Inspecting the Belts Inspect all belts every 100 hours. Figure 42 Check belts for cracks, frayed edges, burn marks or any other damage. Replace damaged belts. 34 inch Mower 1. 2.
Figure 44 40 inch mower shown 1. Left belt cover 2. Right belt cover 3. 4. Figure 45 Washer Bolt 1. Belt 3. 2. Transmission pump pulleys 4. Replacing the Pump Drive Belt Engine pulley Spring loaded idler pulley Controls System Maintenance Check the pump drive belt for wear after every 50 operating hours. Adjusting the Control Handle Neutral Position 1. Push the seat forwad and locate the pump drive belt. 1.
2. Loosen the bolt located in front of the control lever. 3. Move the stop until the machine drives straight (Figure 48). 4. Tighten the bolt located in front of the control lever (Figure 48). Figure 46 Figure 48 1. Control lever 2. Stop 3. Bolt in front of the control lever Hydraulic System Maintenance Figure 47 Servicing the Hydraulic System 5. If the ends of the levers hit against each other, adjust the levers by rotating them out to the neutral locked position and carefully bend them outward.
• After the first 8 operating hours. • After every 50 operating hours. Hydraulic fluid escaping under pressure can penetrate skin and cause injury. Note: There are two ways of checking the hydraulic oil; when the oil is warm or when the oil is cold. The tank has two levels depending if the oil is warm or cold (Figure 49). • 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.
Important: Before reinstalling new filters, apply a thin coat of oil on the surface of the filters rubber seal. 6. Install the new filters clockwise until rubber seal contacts the filter adapter and then tighten the filter an additional 3/4 to 1 full turn. 7. Remove the vent plug on each transmission and fill through the hydraulic tank, when oil comes out of vent reinstall plug. Torque the plugs to 180 in-lb (244 N⋅m). 8. Add oil until it reaches the cold line on the hydraulic tank (Figure 49). 9.
5. Place two thick blocks under rear left and right lower edge of the mower deck so the weight of the deck rests on the blocks. 6. Lower the mower to the 3 inch (76 mm) height-of-cut position. 7. Loosen the bolts connecting the two chains and the two rear brackets to the mower (Figure 52). 8. Adjust the two rear bolts so they are in the middle of the slot located in the pivot bracket (Figure 52). 9. Adjust the bolts so the end of the bolt is flush with the nut.
Figure 52 Left side shown 1. Pivot bracket 2. Bolt installed in the middle of the slot 3. Rear pivot bracket 4. Front pivot bracket 14. The right blade at the front position (Figure 54 or Figure 55) needs to be the same height as the left blade at the front position. tearing or shredding the grass blades. Tearing and shredding turns grass brown at the edges, which slows growth and increases the chance of disease.
2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. A worn or damaged blade can break, and a piece of the blade could be thrown into the operator’s or bystander’s area, resulting in serious personal injury or death. 3. Rotate the blades until the ends face forward and backward (Figure 54 or Figure 55). Measure from a level surface to the cutting edge at position A, of the blades (Figure 54 or Figure 55). Note this dimension.
Contact with a sharp blade can cause serious injury. Wear gloves or wrap sharp edges of the blade with a rag. 1. Hold the blade end using a rag or thickly-padded glove. 2. Remove the blade bolt, spring disk and blade from the spindle shaft (Figure 58). Sharpening the Blades Figure 55 When sharpening blade, pieces of blade could be thrown and cause serious injury. 40 inch Mower 1. Measure here from blade to hard surface 2. Position A Wear proper eye protection when sharpening blade. 4.
Replacing the Grass Deector Figure 57 1. Blade 2. An uncovered discharge opening could allow the lawn mower to throw objects in the operator’s or bystander’s direction and result in serious injury. Also, contact with the blade could occur. Balancer Installing the Blades 1. Install the blade onto the spindle shaft (Figure 58). • Never operate the lawn mower unless you install a cover plate, a mulch plate, or a grass chute and catcher.
Dispose of these according to your state and local regulations. Figure 59 1. 2. 3. 4. Bolt Grass Deector Spring Spacer 5. 6. 7. Locknut Spring installed Mower deck Cleaning Cleaning Under the Mower Remove the grass buildup under the mower daily. 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.
Storage the stabilizer manufacturer. 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 the key. Note: A fuel stabilizer/conditioner is most effective when mixed with fresh fuel 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 the blade control (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 the 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. 49 Corrective Action 1. Check the belt tension. 2. Install the drive belt and check adjusting shafts and belt guides for correct position. 3. Install a new deck belt. 4. Install the deck pulley and check the idler pulley, idler arm and spring for correct position and function. 5.
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 2006 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.
