Form No. 3351-711 Z453 Z Master With 48in or 52in TURBO FORCE Side Discharge Mower Model No. 74416—Serial No. 250000001 and Up Model No. 74417—Serial No. 250000001 and Up Operator’s Manual Register your product at www.Toro.
Warning Driving Forward or Backward . . . . . . . . . . . . . . . . Stopping the Machine . . . . . . . . . . . . . . . . . . . . . . Adjusting the Height-of-Cut . . . . . . . . . . . . . . . . . Adjusting the Anti-scalp Rollers . . . . . . . . . . . . . . Positioning the Seat . . . . . . . . . . . . . . . . . . . . . . . . Pushing the Machine by Hand . . . . . . . . . . . . . . . . Operating with the Side Discharge . . . . . . . . . . . . Transporting the Machine . . . . . . . . . . . . . . . . . . .
This manual uses 2 other words to highlight information. Important calls attention to special mechanical information and Note: emphasizes general information worthy of special attention. Introduction Read this manual carefully to learn how to operate and maintain your product properly. The information in this manual can help you and others avoid injury and product damage. Although Toro designs and produces safe products, you are responsible for operating the product properly and safely.
• Do not operate the mower under the influence of alcohol or drugs. • Inspect the area where the equipment is to be used and remove all objects such as rocks, toys and wire which can be thrown by the machine. • Use extreme care when loading or unloading the machine into a trailer or truck. • Use extra care when handling gasoline and other fuels. They are flammable and vapors are explosive. • Use care when approaching blind corners, shrubs, trees, or other objects that may obscure vision.
• Keep all parts in good working condition and all hardware tightened. Replace all worn or damaged decals. Using the Rollover Protection System (ROPS) • Keep the roll bar in the raised and locked position and use the seat belt when operating the machine. • Use only Toro-approved attachments. Warranty may be voided if used with unapproved attachments. • Be certain that the seat belt can be released quickly in the event of an emergency. • Be aware there is no rollover protection when the roll bar is down.
Slope Chart Fold along appropriate line Example: Compare slope with folded edge. Align this edge with a vertical surface (Tree, Building, Fence post, pole, etc.
Safety and Instruction 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.
98-5954 98-4387 1. Warning—wear hearing protection.
107-1687 107-1688 107-2100 107-2102 11
107-2112 107-2148 107-8445 12
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. 108-1050 108-1052 1. Height of cut adjustment Battery Symbols Some or all of these symbols are on your battery. 108-1051 1. Explosion hazard 2. No fire, open flames, or smoking. 3. Caustic liquid/chemical burn hazard 4. Wear eye protection 5. Read the Operator’s Manual. 6. Keep bystanders a safe distance from the battery. 13 7.
Gasoline and Oil Warning Recommended Gasoline Gasoline is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness. Use unleaded regular gasoline suitable for automotive use (85 pump octane minimum). You may use leaded regular gasoline if unleaded regular is not available. • Avoid prolonged breathing of vapors. • Keep your face away from the nozzle and fuel tank or conditioner opening. • Keep gasoline away from eyes and skin.
2. Remove the hairpin cotter pins and remove the 2 pins (Fig. 3). Operation Note: Determine the left and right sides of the machine from the normal operating position. 1 Using the Rollover Protection System (ROPS) 2 Warning To avoid injury or death from a rollover, keep the roll bar in the raised locked position and use the seat belt. 3 Ensure that the rear part of the seat is secured with the seat latch. 4 m-7431 Warning Figure 3 1. Roll bar 2.
7. Tighten the front handles against the center roll bar ends (Fig. 2). 2 1 Think Safety First Read all safety instructions and symbols in the safety section. Knowing this information could help you or bystanders avoid injury. Danger Operating the machine on wet grass or steep slopes can cause sliding and loss of control. 3 Wheels dropping over the edges can cause rollovers, which may result in serious injury, death, or drowning.
Controls Using the Fuel Shutoff Valve Become familiar with all the controls (Fig. 7) before you start the engine and operate the machine. The machine has 2 fuel tanks, one on the left side and the other on the right side. Each tank connects to a check valve and then to a tee. From there a common fuel line leads to the engine (Fig. 9). 2 9 5 8 1 4 1 7 3 m–7702 6 Figure 9 m–7701 1. Fuel shutoff valve Figure 7 1. 2. 3. 4. 5. 6. 7. 8. 9.
Releasing the Parking Brake 5. Move the throttle control to Fast before starting a cold engine (Fig. 13). Push forward and down on the parking brake lever to release the parking brake (Fig. 10). 1 Starting and Stopping the Engine 1 2 3 2 Starting the Engine 1. Sit on the seat and move the motion controls to the neutral locked position. 2. Set the parking brake; refer to Setting the Parking Brake on page 17. Figure 13 1. Fast 2. Slow 3. Move the PTO (power takeoff) to Off (Fig. 11).
The Safety Interlock System Caution Caution Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. If safety interlock switches are disconnected or damaged, the machine could operate unexpectedly, causing personal injury. Always remove the ignition key and set the parking brake when leaving the machine unattended, even for a few minutes. • Do not tamper with the interlock switches.
Driving Backward 5. While sitting on the seat, disengage the parking brake, disengage the PTO, and move the motion control levers to the neutral lock position. Try starting the engine; the engine should not crank. 1. Move the levers to the center, unlocked position. 2. To go backward, slowly pull the motion control levers rearward (Fig. 16). Driving Forward or Backward Driving Tips The throttle control regulates the engine speed as measured in RPM (revolutions per minute).
Adjusting the Height-of-Cut 3. After adjusting the height-of-cut, remove the flange nut, bushing, spacer, and bolt (Fig. 18). The height-of-cut adjusts from 1-1/2 to 4-1/2 inches (38 to 114 mm) in 1/4 inch (6 mm) increments by relocating the clevis pin in different hole locations. 1. Raise the height-of-cut lever to the transport position (also the 4-1/2 inch [114 mm] cutting height position) (Fig. 17). 1 5 2 2 1 4 3 Figure 18 m–4122 1. Outer roller 2. Spacer 3. Bushing Figure 17 1.
3. After adjusting the height-of-cut, remove the flange nut, bushing, and bolt (Fig. 19). 2. Slide the seat to the desired position and release the lever to lock the seat in position. Pushing the Machine by Hand Important Always push the machine by hand. Never tow the machine, because hydraulic damage may occur. To Push the Machine 1. Disengage the power takeoff (PTO) and turn the ignition key to Off. 2. Rotate the bypass valves counterclockwise 1 turn to push.
Operating with the Side Discharge Warning Driving on a street or roadway without turn signals, lights, reflective markings, or a slow moving vehicle emblem is dangerous and can lead to accidents that cause personal injury. The mower has a hinged grass deflector that disperses the clippings to the side and down toward the turf. Danger Do not drive the machine on a public street or roadway.
Mowing Direction the downside of the slope and the ramp extends up the slope. This will minimize the ramp angle. The trailer or truck should be as level as possible. Alternate the mowing direction to keep the grass standing straight. This also helps disperse clippings, which enhances decomposition and fertilization. Important Do not attempt to turn the machine while on the ramp; you may lose control and drive off the side.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule Maintenance Service Interval After First 8 Hours Each Use Maintenance Procedure • Check the hydraulic fluid level. • Change the engine oil. • Change the hydraulic filter. • • • • Check the engine oil level. Check the safety system. Clean the engine air intake1. Clean the mower housing. Every 5 Hours • Check the cutting blades.
Important Refer to your engine operator’s manual for additional maintenance procedures. 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 and disconnect the wire from the spark plug(s) before you do any maintenance. Set the wire aside so that it does not accidentally contact the spark plug.
Checking for Bent Blades Removing the Blades 1. Rotate the blades until the ends face forward and backward (Fig. 24). Measure from a level surface to the cutting edge of the blades (Fig. 25). Note this dimension. Replace any blade if it hits a solid object, is out of balance, or is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine Toro replacement blades.
Sharpening the Blades Cleaning the Cooling System Clean the air intake screen from grass and debris before each use. Warning Check and clean the cooling fins and the engine shrouds every 100 hours or yearly, which ever comes first. When you sharpen the blade, pieces of the blade could be thrown and cause serious injury. 1. Disengage the PTO and set the parking brake. Wear proper eye protection when you sharpen the blade. 2.
Servicing the Air Cleaner Servicing the Primary Filter Primary Filter: Check and/or replace it after every 200 operating hours or more often in dusty conditions. • Check and/or replace the primary filter after 200 operating hours. Safety Filter: Replace it after every 600 operating hours. • If the primary filter is dirty, bent, or damaged, replace it. Note: Check the filters more frequently if the operating conditions are extremely dusty or sandy. • Do not clean the primary filter.
Servicing the Engine Oil 5. Unscrew the oil dipstick and wipe the end clean (Fig. 31). Service Interval/Specification 6. Slide the oil dipstick fully into the filler tube, but do not thread it onto the tube (Fig. 31). Change the engine oil: • After every 100 operating hours 7. Pull the dipstick out and look at the end. If the oil level is low, slowly pour only enough oil into the filler tube to raise the level to the Full mark.
Changing the Oil Filter Removing the Spark Plug(s) Replace the oil filter every 200 operating hours or every other oil change. 1. Disengage the PTO 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. Note: Change the oil filter more frequently when the operating conditions are extremely dusty or sandy. 3. Disconnect the wire(s) from the spark plug(s) (Fig. 34). 1.
7. Remove the filter from the fuel lines. 2. Check the gap between the center and side electrodes (Fig. 35). 8. Install a new filter and move the hose clamps close to the filter (Fig. 36). Note: Bend the side electrode (Fig. 35) if the gap is not correct. 9. Open the fuel shutoff valve. Installing the Spark Plug(s) Draining the Fuel Tank 1. Install the spark plug(s) and the metal washer(s). Danger Note: Ensure that the air gap is set correctly. 2. Tighten the spark plug(s) to 16 ft-lb (22 N m).
Greasing and Lubrication Greasing the Front Caster Pivots Lubricate the machine at the intervals shown on the Check Service Reference Aid decal (Fig. 37). Lubricate more frequently when operating conditions are extremely dusty or sandy. Lubricate the front caster pivots once a year. 1. Remove the dust cap and adjust the caster pivots. Note: Keep dust cap off until greasing is done. Refer to Adjusting the Caster Pivot Bearing on page 38. 2. Remove the hex plug and thread a grease zerk into the hole. 3.
Where to Add Light Oil or Spray Lubrication Important Use the specified oil or equivalent. Other fluids could cause system damage. Lubricate the machine in the following areas with spray type lubricant or light oil. Lubricate every 160 hours. Hydraulic System Oil Capacity: 67 oz. (2.0 l) Note: There are 2 ways of checking the hydraulic oil. One is for warm oil and the other for cold oil. The baffle inside the tank has 2 levels depending on whether the oil is warm or cold.
4. Apply a thin coat hydro fluid to the rubber gasket on the replacement filter (Fig. 42). Warning Hydraulic fluid escaping under pressure can penetrate skin and cause injury. 1 • 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; otherwise, gangrene may result. • Keep your body and hands away from pin hole leaks or nozzles that eject high-pressure hydraulic fluid. • Use cardboard or paper to find hydraulic leaks.
3. Tilt the seat forward. 5. Check hydraulic fluid level and add fluid as required to maintain the proper level. 4. Begin with either the left or right motion control lever. 6. Repeat this procedure on the opposite wheel. 5. Move lever to the neutral position but not locked (Fig. 43). Warning 2 Hydraulic fluid escaping under pressure can penetrate skin and cause injury.
7. Check where the control lever is relative to the notch in the console (Fig. 43). It should be centered, allowing the lever to pivot outward to the neutral lock position. Setting the Left-hand Hydraulic Pump Neutral Position 8. If adjustment is needed, loosen the nut and jam nut against the yoke (Fig. 44). 1. Start the engine, open the throttle halfway and release the parking brake. Refer to Starting and Stopping the Engine on page 18. 9.
3. Adjust the pump rod length by rotating the double nuts on the rod in the appropriate direction until the wheel is still or slightly creeps in reverse (Fig. 44). 4. To make the machine move to the right, turn the knob toward the right side of the machine; refer to Figure 46. 4. Move the motion control lever forward and reverse, then back to neutral. The wheel must stop turning or slightly creep in reverse. 2 3 5. Open the throttle to Fast.
4. Tighten the locknut until the spring washers are flat, then back off 1/4 turn to properly set the pre-load on the bearings (Fig. 47). Leveling the Mower at Three Positions Important Ensure that the spring washers are installed correctly as shown in Figure 47. Important There are only 3 measuring positions needed to level the mower. Checking the Wheel Hub Slotted Nut Setting Up the Machine Check after every 500 operating hours. 2.
2. Measure the right blade at the B location (Fig. 49), from a level surface to the cutting edge of the blade tip (Fig. 50). 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 (79 to 83 mm). Note: It is recommended that both sides of the mower are adjusted the same distance. 9. Tighten the jam nut under the rear support arm and tighten the bolt that secures the chain to the rear support arm.
Adjusting the Push Arms 7. Loosen the front swivel jam nuts, at the front of the right and left swivels, approximately 1/2 inch (13 mm) (Fig. 54). If needed, adjust the push arms to increase or decrease the mower belt tension. 8 1 1. Loosen the jam nut and rotate the ball joint counterclockwise, one turn at a time.(Fig. 55). 8 4 1 6 7 3 4 5 2 2 3 m–7704 Front Figure 55 Figure 54 1. 10-1/2 inch (267 mm) between the large washers 2. Front nut 3. Spring jam nut 4. 5. 6. 7. 8. m–7705 1.
Inspecting the Belts 7. Insert a ratchet with a short extension or a breaker bar into the square hole in the fixed idler arm (Fig. 57). Inspect all belts every 50 hours. 1 Check belts for cracks, frayed edges, burn marks, or any other damage. Replace damaged belts. Replacing the Mower Belt The signs of a worn mower belt are squealing while the belt is rotating, blades slipping while you are cutting grass, frayed belt edges, burn marks, and cracks. Replace the mower belt if you detect any of these signs.
Replacing the Pump Drive Belt Adjusting the Parking Brake Check the pump drive belt for wear after every 50 operating hours. Check the parking brake for proper adjustment. 1. Disengage the brake lever (lever down). 1. Remove the mower belt first; refer to Replacing the Mower Belt on page 42. 2. Measure the length of the spring; the measurement should be 2-3/4 inch (74 mm) between the washers (Fig. 59). 2. Remove the bolt from the clutch stop and unplug the clutch electrical wire (Fig. 58).
Servicing the Fuses Checking the Electrolyte Level Service Interval/Specification 1. Shut off the engine and wait for all moving parts to stop. The electrical system is protected by fuses. It requires no maintenance; however, if a fuse blows, check the component/circuit for a malfunction or short. 2. Open the hood. 3. Look at the side of the battery. The electrolyte must be up to the upper line (Fig. 61).
Installing the Battery Removing the Battery 1. Position the battery in the tray with the terminal posts toward the engine (Fig. 62). 9 5 Warning 4 11 The 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. 2 7 6 • When removing or installing the battery, do not allow the battery terminals to touch any metal parts of the machine.
Adding Water to the Battery 4. When the battery is fully charged, unplug the charger from the electrical outlet, then disconnect the charger leads from the battery posts (Fig. 63). The best time to add distilled water to the battery is just before you operate the machine. This lets the water mix thoroughly with the electrolyte solution. 4 Note: Never fill the battery with distilled water while the battery installed in the machine. The electrolyte could be spilled on other parts and cause corrosion.
Replacing the Grass Deflector Waste Disposal Engine oil, hydraulic oil, engine coolant, and the battery are pollutants to the environment. Dispose of these according to your local regulations. Warning 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. • Never operate the lawn mower unless you install a cover plate, a mulch plate, or a grass chute and catcher.
PTO CLUTCH GND BK BK BN VIO (NEUTRAL) SW5 W SW4 (NEUTRAL) SHOWN WITH PARK BRAKE DISENGAGED SW3 (BRAKE) VIO Y SHOWN WITH LEVER IN NEUTRAL POSITION SHOWN WITH LEVER IN NEUTRAL POSITION Y SHOWN IN OFF POSITION GY BN SW2 (PTO) I S OR BK P1–B T Y K2 (START RELAY) P2–C SW6 (SEAT SW) SHOWN WITH OPERATOR IN SEAT TERMINAL VIEW FROM BACK OF SWITCH B A KEY SW Y X NO CONNECTION BIA AND X Y BIS P1–A DELAY MODULE 100–6186 P1–C PK OFF ON START OR GY BN GN F1 30A Y R R B BK K1
Cleaning and Storage A. Add a petroleum based stabilizer/conditioner to fuel in the tank. Follow mixing instructions from stabilizer manufacture. Do not use an alcohol based stabilizer (ethanol or methanol). 1. Disengage the power takeoff (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.
Troubleshooting Problem Starter does not crank. Engine g will not start, starts hard, or f il to fails t keep k running. i Engine g loses power. Engine g overheats. Possible Causes Corrective Action 1. Blade control (PTO) is engaged. 1. Move blade control (PTO) to Disengaged. 2. Parking brake is not on. 2. Set parking brake. 3. Operator is not seated. 3. Sit on the seat. 4. Battery is dead. 4. Charge the battery. 5. Electrical connections are corroded or loose. 5.
Problem Machine does not drive. Abnormal vibration. Uneven cutting g height. g Blades do not rotate. Possible Causes Corrective Action 1. Traction belt is worn, loose or broken. 1. Contact Authorized Service Dealer. 2. Traction belt is off pulley. 2. Contact Authorized Service Dealer. 3. Hydro fluid level low. 3. Add hydro fluid to reservoir. 1. Engine mounting bolts are loose. 1. Tighten engine mounting bolts. 2. Loose engine pulley, idler pulley, or blade pulley. 2.
The Toro Total Coverage Guarantee LCE A Limited Warranty Conditions and Products Covered Owner Responsibilities The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair the listed Toro Products if defective in materials or workmanship. The following time periods apply from the date of purchase: You must maintain your Toro Product by following the maintenance procedures described in the operator’s manual.
