Form No. 3351–990 Z557 Z Masterr with 152cm TURBO FORCEt Side Discharge Mower Model No. 74246TE—250000001 & Up Operator’s Manual Register your product at www.Toro.
This spark ignition system complies with Canadian ICES-002. Using the Z Stand . . . . . . . . . . . . . . . . . . . . . . . . . Tips for Mowing Grass . . . . . . . . . . . . . . . . . . . . Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended Maintenance Schedule . . . . . . . . Servicing the Cutting Blades . . . . . . . . . . . . . . . . Servicing the Air Cleaner . . . . . . . . . . . . . . . . . . Servicing the Engine Oil . . . . . . . . . . . . . . . . . . .
Introduction Safety 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. Safe Operation Practices for Ride-on (riding) Rotary Lawnmower Machines This machine meets or exceeds European Standards in effect at the time of production.
• lack of awareness of the effect of ground conditions, especially slopes; – use slow speeds on slopes and during tight turns; – stay alert for humps and hollows and other hidden hazards; • incorrect hitching and load distribution. • Use care when pulling loads or using heavy equipment. Preparation – Use only approved drawbar hitch points. • While mowing, always wear substantial footwear and long trousers. Do not operate the equipment when barefoot or wearing open sandals.
Slope Operation • Reduce the throttle setting during engine run-out and, if the engine is provided with a shut-off valve, turn the fuel off at the conclusion of mowing. • Do not mow slopes greater than 15 degrees. • Do not mow near drop–offs, ditches, steep banks or water. Wheels dropping over edges can cause rollovers, which may result in serious injury, death or drowning. Maintenance and Storage • Keep all nuts, bolts and screws tight to be sure the equipment is in safe working condition.
Sound Pressure This unit has a maximum sound pressure level at the operator ’s ear of 90 dBA, based on measurements of identical machines per Directive 98/37/EC. Sound Power This unit has a guaranteed sound power level of 105 dBA, based on measurements of identical machines per Directive 2000/14/EC. Vibration This unit does not exceed a hand/arm vibration level of 2.15 m/s2, based on measurements of identical machines per Directive 98/37/EC. This unit does not exceed a whole body vibration level of 0.
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. 98-4387 1. Warning—wear hearing protection. 1-643339 58-6520 1. Grease 93-7010 1. Thrown object hazard—stay a safe distance from the machine. 2. Thrown object hazard, mower—keep the deflector in place. 3. Cutting/dismemberment of hand or foot—stay away from moving parts. 99-8939 1. Read the Operator’s Manual. 2.
93-7828 1. Thrown object hazard, mower—do not operate the mower with the deflector up or removed; keep the deflector in place. 2. Cutting/dismemberment hazard of hand or foot, mower blade—stay away from moving parts. Battery Symbols Some or all of these symbols are on your battery. 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. 7.
107-2131 1. Hydraulic oil level 2. Warning—do not touch the hot surface. 107-3962 1. Height of cut in millimeters 107-3961 1. Height of cut in millimeters 107-3965 1. 2. 3. 4. 11 Engine—stop Engine—run Engine—start Power take-off (PTO) 5. Fast 6. Continuous variable setting 7.
107-3968 1. Disengage 2. Engage 3. Parking brake 107-3969 1. Warning—read the Operator’s Manual. 2. Crushing hazard, mower—engage the parking brake, stop the engine, and remove the ignition key before working under the mower. 107-3984 1. Read the instructions before servicing or performing maintenance. 2. Grease every 25 operating hours. 3. Engine 4. Check the tire pressure every 25 operating hours. 5. Check the hydraulic oil level every 25 operating hours. 107-3978 1.
Manufacturers Mark 1. Indicates the blade is identified as a part from the original machine manufacturer. 107-3996 1. Engine 2. Cutting blade 107-3963 1. Cutting/dismemberment hazard, mower blade—do not carry passengers and keep bystanders away. 2. Cutting/dismemberment hazard of hand or foot, mower blade— remove the ignition key and read the instructions before servicing or performing maintenance; stay away from moving parts. 13 3.
107-3964 1. Warning—do not use drugs or alcohol. 2. Warning—read the Operator’s Manual and receive training. 3. Warning—engage the parking brake, stop the engine, and remove the ignition key before leaving the machine. 4. Warning—wear hearing protection. 5. Read the Operator’s Manual. 107-8077 1. 2. 3. 4. 5. Fast Slow Neutral Reverse Warning—read the Operator’s Manual. 6. Poison and caustic liquid/chemical burn hazard—keep children a safe distance from the battery. 14 7.
Gasoline and Oil Warning Gasoline is harmful or fatal if swallowed. Long–term exposure to vapors can cause serious injury and illness. Recommended Gasoline Use UNLEADED Regular Gasoline suitable for automotive use (85 pump octane minimum). Leaded regular gasoline may be used if unleaded regular is not available. • Avoid prolonged breathing of vapors. • Keep face away from nozzle and gas tank or conditioner opening. • Keep gas away from eyes and skin.
Operation 2 Note: Determine the left and right sides of the machine from the normal operating position. 1 Using the Rollover Protection System (ROPS) m–7447 Figure 2 Warning 1. Full down position To avoid injury or death from rollover: keep the roll bar in the raised locked position and use the seat belt. Important Always use the seat belt with the roll bar in the raised position. Ensure that the rear part of the seat is secured with the seat latch.
7. Tighten the front handles against the center roll bar ends (Fig. 3). 2 1 1 m–6897 Figure 4 1. Front handle 3 Think Safety First m–6478 Figure 5 Please read all safety instructions and symbols in the safety section. Knowing this information could help you or bystanders avoid injury. 1. Safe Zone—use the Z Master here on slopes less than 15 degrees or flat areas. 2. Use walk behind mower and/or hand trimmer near drop–offs and water. 3.
Controls Unlatch the seat and lift it up to view the hour meter (Fig. 8). Become familiar with all the controls (Fig. 7 and 8) before you start the engine and operate the machine. Operating the Parking Brake 8 7 Always set the parking brake when you stop the machine or leave it unattended. 6 1 Setting the Parking Brake 4 3 1. Move the motion control levers (Fig. 7) out to the neutral lock position. 2. Pull back and up on the parking brake lever to set the parking brake (Fig. 9).
Starting and Stopping the Engine 1 1 2 Starting the Engine 1. Sit on the seat and move the motion controls to neutral locked position. 3 2 2. Set the parking brake; refer to Setting the Parking Brake, page 18. 3. Move the PTO (power take off) switch to the off position (Fig. 10). Figure 12 4. Move the choke control to the on position before starting a cold engine. Figure 13 1. Throttle–Fast 2. Throttle–Slow 1. Off 2. Run 3. Start Note: A warm or hot engine may not require choking.
Engaging the PTO • You are sitting on the seat. 1. While seated in the seat, release pressure on the traction control levers and place in neutral. • The parking brake is engaged. • The power take off (PTO) is disengaged. 2. Place the throttle to the fast position. • The motion control levers are in neutral locked position. 3. Pull out on the power take off (PTO) switch to engage (Fig. 14).
Driving Backward Caution 1. Move the levers to the center, un-locked position. Machine can spin very rapidly. Operator may lose control of machine and cause personal injury or damage to machine. 2. To go backward, slowly pull the motion control levers rearward (Fig. 15). To go straight, apply equal pressure to both motion control levers (Fig. 15). • Use caution when making turns. • Slow the machine down before making sharp turns.
3. Select a hole so the anti–scalp roller is positioned to the nearest corresponding height-of-cut desired (Fig. 18). 1 4. Install the flange nut bushing, spacer, and bolt. Torque to 40–45 ft–lb (54–61 N⋅m) (Fig. 18). 2 5. Repeat this adjustment on the other anti–scalp rollers. m–6820 Figure 16 1. Height of cut lever 2. Clevis Pin 4 Using the Lift Assist Lever 2 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.
Positioning the Flow Baffle The following figures are only recommendations for use. Adjustments will vary by grass type, moisture content, and height of grass. Note: If the engine power draws down and the mower ground speed is the same, open up the baffle. 1 Position A This is the full rear position. The suggested use for this position is a follows. 4 • Use for short, light grass mowing conditions. 2 5 1 3 m–6844 Figure 20 1. Anti–scalp roller 2. Spacer 3. Bushing • Use in dry conditions. 4.
Position C Unlatching the Seat This is the full open position. The suggested use for this position is as follows. Push the seat latch rearward to unlatch the seat. This will allow access to the machine under the seat. • Use in tall, dense grass mowing conditions. 3 • Use in wet conditions. • Lowers the engine power consumption. 2 • Allows increased ground speed in heavy conditions. • This position is similar to the benefits of the Toro SFS mower. 1 Full Forward Position m–6840 Figure 26 1.
1 2 Danger 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.
Transporting Machines Avoid sudden acceleration when driving up a ramp and sudden deceleration when backing down a ramp. Both maneuvers can cause the unit to tip backward. Use a heavy–duty trailer or truck to transport the machine. Ensure that the trailer or truck has all necessary lighting and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you, your family, pets or bystanders avoid injury.
4. Set the foot of stand on the ground and rest the latch on the pivot tab (Fig. 30). Warning 5. Start the engine and put it at half throttle. Unit could fall onto someone and cause serious injury or death. Note: For best results, place the foot of stand into seams in sidewalks or into the turf (Fig. 30). • Use extreme caution when operating unit on Z Stand. • Use only for cleaning mower and removing blades. • Do not keep unit on Z Stand for extended periods of time.
Tips for Mowing Grass 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 Maintenance Service Interval After first 5 hours Each Use Maintenance Procedure • Hydraulic fluid—check level • Hydraulic filter—change • • • • Oil—check level Safety System—check Mower Housing—clean Engine air intake—clean1 Every 8 Hours • Cutting Blades—check Every 25 Hours • • • • • • • • Every 50 Hours • Belts—adjust tension • Belts—check for wear/cracks • Tires—check pressure Every 100 Hours • Engine Oil—change1 • Hydraulic lines—check • Engine Co
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. 33). Measure from a level surface to the cutting edge, position A, of the blades (Fig. 34). Note this dimension. Blades must be replaced if a solid object is hit, if the blade is out of balance or is bent. To ensure optimum performance and continued safety conformance of the machine, use genuine TORO replacement blades.
3. Release the latches on the air cleaner and pull the air cleaner cover off of the air cleaner body (Fig. NO TAG). blade is not balanced, file some metal off the end of the sail area only (Fig. 37). Repeat this procedure until the blade is balanced. 4. Clean the inside of the air cleaner cover with compressed air. 2 1 5. Gently slide the primary filter out of the air cleaner body (Fig. NO TAG). Avoid knocking the filter into the side of the body. m–1855 Figure 36 1. Blade 2. Balancer 6.
2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 1. If installing new filters, check each filter for shipping damage. Do not use a damaged filter. 2. If the safety filter is being replaced, carefully slide it into the filter body (Fig. NO TAG). 3. Clean around the oil dipstick (Fig. 39) so dirt cannot fall into the filler hole and damage the engine. 3. Carefully slide the primary filter over the safety filter (Fig. NO TAG).
Note: Dispose of the used oil at a certified recycling center. 3 1 1 2 Figure 41 1. Oil filter 2. Gasket m–5624 Figure 40 1. Oil drain valve 5. Slowly pour approximately 80% of the specified oil into the filler cap (Fig. 39). Refer to Servicing the Engine Oil, page 33. 6. Check the oil level; refer to Checking the Oil Level, page 33. 7. Slowly add additional oil to bring it to the full mark. Change the Oil Filter Replace the oil filter every 200 hours or every other oil change.
5. 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 1/2 turn (Fig. 41). Important Never clean the spark plug(s). Always replace the spark plug(s) when it has: a black coating, worn electrodes, an oily film, or cracks. 2. Check the gap between the center and side electrodes (Fig. 43). Bend the side electrode (Fig. 43) if the gap is not correct. 6.
5. Install the fuel line onto the fuel filter. Slide the hose clamp close to the fuel filter to secure the fuel line (Fig. 45). 9. Open fuel shut-off valve (Fig. 44). 4 2 1 2 1 3 3 2 m–6842 Figure 44 1. Filter 2. Hose clamp m–6842 3. Fuel shut-off valve Figure 45 1. Fuel shut-off valve 2. Fuel filter 3. Hose clamp 4. Fuel line Servicing the Fuel Tank Draining The Fuel Tank Greasing and Lubrication Danger Lubricate the machine when shown on the Check Service Reference Aid decal (Fig. 46).
Greasing the Spindles 3. Pump grease into the zerk until it oozes out around the top bearing. The cutting unit must be lubricated weekly or every 25 hours. Refer to the Service Interval Chart on page 29. Grease with No. 2 general purpose lithium base or molybdenum base grease. 4. Remove the grease zerk in the hole. Install the hex plug and cap. Where to Add Grease Important Make sure cutting unit spindles are full of grease weekly.
ÓÓ ÓÓ ÓÓ ÓÓ ÓÓ 2 1 1 m–1872 m–3801 Figure 50 Figure 48 1. Engine screen 1. Valve stem 2. Oil cooler Checking the Wheel Hub Slotted Nut Cleaning the Engine Fins Every 100 hours clean engine cylinder and cylinder head cooling fins. Also clean around carburetor, governor levers and linkage. This will make sure adequate cooling to hydraulic pumps, motors and engine and will reduce the possibility of overheating and mechanical damage. Check after every 500 operating hours.
Adjusting the Caster Pivot Bearing • Before the engine is first started. Check after every 500 operating hours or at storage, which ever comes first. • After every 25 operating hours. • After the first 8 operating hours. Fluid Type: Mobil 1 15W-50 synthetic motor oil or equivalent synthetic oil. 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. Important Use oil specified or equivalent. Other fluids could cause system damage. 2.
Replacing the Hydraulic Filter 1 Change the hydraulic filter: 2 • After the first 8 operating hours. • After every 200 operating hours. 4 Use summer filter above 32°F (0°C) 3 Use winter filter below 32°F (0°C) 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. m–5615 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Figure 53 1. Cap 2. Baffle 3. Cold fluid level—full 4.
Warning 1 3 Hydraulic fluid escaping under pressure can penetrate skin and cause injury. 2 • 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. • Keep body and hands away from pin hole leaks or nozzles that eject high pressure hydraulic fluid. • Use cardboard or paper to find hydraulic leaks.
Setting the Hydraulic Pump Neutral 2 3 Note: Adjust the handle neutral first. That has to be correct before the following adjustment can be made. Danger 1 Mechanical or hydraulic jacks may fail to support machine and cause a serious injury. m–6282 Figure 56 1. Neutral locked position 2. Control lever • Use jack stand when supporting machine. • Do not use hydraulic jacks. 3. Neutral position Warning 8. If adjustment is needed, loosen the nut and jam nut against the yoke (Fig. 57). 9.
5. Open the throttle to fast. Make sure the wheel remains stopped or slightly creeps in reverse, re-adjust if necessary. 4. Open the throttle to fast. Make sure wheel remains stopped or slightly creeps in reverse, adjust if necessary. 6. Tighten the locknuts at the ball joints (Fig. 57). 2 1 4 Warning Electrical system will not perform proper safety shut off with jumper wire installed. • Remove jumper wire from wire harness connector and plug connector into seat switch when adjustment is completed.
Adjusting the Parking Brake 2 Check parking brake for proper adjustment. 1. Disengage brake lever (lever down). 3 2. Measure the length of the spring. Measurement should be 2-3/4 inch (70 mm) between washers (Fig. 61). 4 3. If adjustment is necessary, loosen the jam nut below the spring and tighten the nut directly below the yoke (Fig. 61). Turn the nut until the correct measurement is obtained. Tighten the two nuts together and repeat on opposite side of unit. 1 4.
3. Install a new fuse (Fig. 62). Danger 2 Battery electrolyte contains sulfuric acid which is a deadly poison and causes severe burns. • Do not drink electrolyte and avoid contact with skin, eyes or clothing. Wear safety glasses to shield your eyes and robber gloves to protect your hands. • Fill the battery where clean water is always available for flushing the skin. • Follow all instructions and comply with all safety messages on the electrolyte container. 1 m–3653 Figure 62 1. Main-30 amp 2.
Removing the Battery Adding Water to the Battery Note: Never fill the battery with distilled water while the battery installed in the machine. Electrolyte could be spilled on other parts and cause corrosion. Warning 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. The best time to add distilled water to the battery is just before you operate the machine.
Leveling the Mower Side–to–Side 4 1. Position the right blade front-to-rear (Fig. 66). 2 2. Measure the right blade at the B location (Fig. 66), from a level surface to the cutting edge of the blade tip (Fig. 67). 3 1 3. Record this measurement. This measurement needs to be 3–1/8 to 3–1/4 inches. 4. Position the left blade front-to-rear (Fig. 66). 5. Measure the left blade at the C location (Fig. 66), from a level surface to the cutting edge of the blade tip (Fig. 67). Figure 65 1.
Front 2 6 MEASURE FROM CUTTING EDGE TO A LEVEL SURFACE m–2539 Figure 70 2 1 3 Note: Both of the front swivels need to be adjusted the same amount to maintain equal chain tension. 7 4 1 5 7. Loosen the front swivel jam nuts, at the front of the right and left swivels, approximately a 1/2 inch (13 mm) (Fig. 71). m–6830 Figure 68 1. 2. 3. 4. Rear chain Rear support arm Bolt Jam Nut 8.
3. Remove the belt covers (Fig. 73). 3. Adjust this distance, by loosening the spring jam nut and turning the nut in front of each spring (Fig. 71). Turning the nut clockwise will shorten the spring; counter–clockwise will lengthen the spring. 4. Loosen the nut securing the idler plate and move the idler plate to relieve the belt tension on the idler pulley (Fig. 75). 4. Lock the nut into position by tightening the spring jam nut (Fig. 71). 5.
2 3 1 1 3 2 1 3 M–4417 1 Figure 74 1. Center bolt 2. Alignment hole m–7418 Figure 73 1. Belt cover 2. Latch 3. Bolt 3. Left support plate 4. Spring loaded idler 5. If adjustment is required, loosen the mower idler plate and adjust it (Fig. 75). 6. Insert a ratchet or breaker bar into the square hole in the mower idler plate to adjust the tension (Fig. 75). Adjusting the Mower Belt Tension 7. To increase belt tension, rotate the mower idler plate until resistance is felt and rotation stops.
6 4 3 1. Remove the locknut, bolt, spring and spacer holding the deflector to the pivot brackets (Fig. 78). Remove damaged or worn grass deflector. 5 2. Place spacer and spring onto grass deflector. Place the L end of spring behind deck edge. Note: Make sure the L end of spring is installed behind deck edge before installing the bolt as shown in figure 78. 3. Install bolt and nut. Place J hook end of spring around grass deflector (Fig. 78).
Cleaning and Storage B. Run engine to distribute conditioned fuel through the fuel system (5 minutes). 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. C. Stop engine, allow to cool and drain the fuel tank; refer to Servicing the Fuel Tank, page 36. D. Restart engine and run it until it stops. 2.
Wiring Diagram 53
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. p 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. 4. Tension spring is not connected. 4. Connect the tension spring. 1. Cutting blade(s) is/are bent or unbalanced. 1. Install new cutting blade(s). 2.
