Form No. 3329–875 Z148 Z Master with 44in SFS Side Discharge Mower Model No. 74162—Serial No. 240000001 and Up Operator’s Manual Register your product at www.Toro.
Warning Operating the Power Take Off (PTO) . . . . . . . . . The Safety Interlock System . . . . . . . . . . . . . . . . Testing the Safety Interlock System . . . . . . . . . . Driving Forward or Backward . . . . . . . . . . . . . . . Stopping the Machine . . . . . . . . . . . . . . . . . . . . . Adjusting the Height-of-Cut . . . . . . . . . . . . . . . . Adjusting Anti-Scalp Rollers . . . . . . . . . . . . . . . . Positioning the Seat . . . . . . . . . . . . . . . . . . . . . . .
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. Improper use or maintenance by the operator or owner can result in injury.
• 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. • Use only an approved container • Never remove gas cap or add fuel with engine running. Allow engine to cool before refueling. Do not smoke. Slope Operation • Never refuel or drain the machine indoors.
• Check the area to be mowed and never fold the ROPS in areas where there are slopes, drop offs or water. • Lower the rollbar only when absolutely necessary. Do not wear the seat belt with the roll bar folded down. • Check carefully for overhead clearances (i.e. branches, doorways, electrical wires) before driving under any objects and do not contact them. Maintenance and storage • Disengage drives, lower implement, set parking brake, stop engine and remove key or disconnect spark plug wire.
Slope Chart 7
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.
98-5954 67-5360 103–0262 93-1122 104-4163 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. 93-7818 1. Warning—read the Operator’s Manual for instructions on torquing the blade bolt/nut to 115–149 N⋅m (85–110 ft-lb). 104-8569 98-3798 65–2690 98-4387 1. Warning—wear hearing protection.
99-3943 1.
106-6586 103-1997 104-4164 1. Contains lead; do not discard. 2. Recycle 3. Wear eye protection; explosive gases can cause blindness and other injuries 4. No sparks, flame, or smoking 12 5. Sulfuric acid can cause blindness or severe burns. 6. Flush eyes immediately with water and get medical help fast. 7. Maximum fill line 8. Minimum fill line 9.
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 Using the Rollover Protection System (ROPS) 1 Warning m–6836 Figure 2 To avoid injury or death from rollover: keep the roll bar in the raised locked position and use the seat belt. 1. Full down position Ensure that the rear part of the seat is secured with the seat latch. 2. Down position with bagger installed Important Always use the seat belt with the roll bar in the raised position. Important 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 To use the right side fuel tank rotate the fuel shut off valve 1/4 turn to the right from the off location. This uses fuel from the right side tank only. When the right fuel tank is empty, move the fuel shut off valve 1/4 turn to the left from the off position. Become familiar with all the controls (Fig. 7) before you start the engine and operate the machine. 1 8 8 Close fuel shut off valve, on front panel before transporting or storing machine. 2 2 1 Figure 9 1.
Using the Blowout Baffles 7. After the engine starts, move the choke to off (Fig. 13). 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. Blowout baffles are used when in side discharge mode only. Important Do not use blowout baffles while in recycling mode. 2 1 1. To install or remove blowout baffles, install or remove bolts as shown in Figure 11. 2 1 2 m–4201 m–2719 Figure 13 Figure 12 1.
The Safety Interlock System Important Make sure that the fuel shut off valve is closed before transporting or storing the machine, as fuel leakage may occur. Set the parking brake before transporting. Make sure to remove the key as the fuel pump may run and cause the battery to lose charge. Caution If safety interlock switches are disconnected or damaged the machine could operate unexpectedly causing personal injury. Caution • Do not tamper with the interlock switches.
the engine is running, center either motion control and move (forward or reverse); the engine should stop. Repeat for other motion control. 2 3 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. Try starting the engine; the engine should not crank. 1 4 Driving Forward or Backward m–2715 Figure 17 The throttle control regulates the engine speed as measured in rpm (revolutions per minute).
1. Raise the height-of-cut lever to the transport position (also the 4-1/2 inch (114 mm) cutting height position) (Fig. 18). 2. To adjust, remove hairpin cotter and clevis pin from height-of-cut bracket (Fig. 18). 1 3. Select hole in height-of-cut bracket corresponding to the height-of-cut desired, and insert clevis pin (Fig. 18). 1 4 4. Secure clevis pin with hairpin cotter (Fig. 18). 3 2 1 5 m–4167 Figure 19 2 1. Gage wheel 2. Stud 3. Washer 4. Nut 5. Wheel nut and washer. Do not remove.
Positioning the Seat The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable. 1. To adjust, move the lever sideways to unlock seat (Fig. 21). 1 2. Slide the seat to the desired position and release lever to lock in position. m–6279 Figure 22 1. By-pass valve Using a Rollover Protection System (ROPS) A ROPS is available and its use is recommended for areas where there are slopes, drop–offs or water.
Transporting Machines Warning 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. 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.
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 fast.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule Maintenance Service Interval Each Use Maintenance Procedure • • • • • Check the engine oil level. Check the safety system. Clean the cooling system.1 Clean the mower housing. Check the air cleaner. Every 5 Hours • Check the cutting blades.
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. Servicing the Cutting Blades Maintain sharp blades throughout the cutting season because sharp blades cut cleanly without tearing or shredding the grass blades.
1 MEASURE FROM CUTTING EDGE TO A LEVEL SURFACE 2 3 4 5 m–2539 m–4318 Figure 26 Figure 27 1. Sail area of blade 2. Blade 3. Flat washer 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.
2 Installing the Blades 1. Install the blade onto the spindle shaft (Fig. 27). 1 Important The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. 2. Install the flat washer, lock washer and blade bolt (Fig. 27). Torque the blade bolt to 85–110 ft-lb (115–150 N m). Important Make sure blade is torqued to 85–110 ft-lb (115–150 N m). m–6723 Engine Oil Figure 30 Change the oil after every 100 operating hours. 1.
2. Park the machine so that the drain side is slightly lower than the opposite side to ensure that the oil drains completely. Then disengage the PTO, set the parking brake, stop the engine, and remove the key. 2. Remove the old filter and wipe the filter adapter (Fig. 33) gasket surface. 1 3. Place a pan below the oil drain. Remove the oil drain cap (Fig. 32). 2 2 3 m–1256 Figure 33 1 1. Oil filter 2. Gasket 3. Adapter m–6722 Figure 32 1. Oil drain cap 3.
Important 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. 3 4 1 Installing the Filters Important To prevent engine damage, always operate the engine with both air filters and cover installed. 1. If installing new filters, check each filter for shipping damage. Do not use a damaged filter. 5 2 2. If the safety filter is being replaced, carefully slide it into the filter body (Fig. 34).
Draining the Fuel Tank 3. Remove the spark plug(s) and metal washer. Danger In certain conditions, gasoline is extremely flammable and highly explosive. A fire or explosion from gasoline can burn you and others and can damage property. 1 • Drain gasoline from the fuel tank when the engine is cold. Do this outdoors in an open area. Wipe up any gasoline that spills. • Never smoke when draining gasoline, and stay away from an open flame or where a spark may ignite the gasoline fumes.
Replacing the Fuel Filter Replace the fuel filter after every 200 operating hours or yearly, whichever occurs first. Never install a dirty filter if it is removed from the fuel line. 1. Disengage the PTO, set the parking brake, stop the engine, and remove the key. 2. Allow the machine to cool down. 3. Close the fuel shut-off valve located under the front of the fuel tank. 4. Squeeze the ends of the hose clamps together and slide them away from the filter (Fig. 37). 5. Remove the filter from the fuel lines.
2. Grease the fittings on the three spindle bearings (Fig. 39). 1 3. Grease the idler pulley pivot (Fig. 39). 4. Grease the fittings on the push arms (Fig. 39). m–1872 Figure 40 1 1. Valve stem Adjusting the Wheel Hub Slotted Nut Check after every 500 operating hours. The slotted nut needs to be torqued to 125 ft-lb (170 N m). 1. Stop the engine, set the parking brake, remove the key and disconnect the spark plug wire(s) from the spark plug(s). 2. Remove cotter pin. M–4269 3.
Adjusting the Caster Pivot Bearing Note: Motion control levers must be installed correctly. See Installing the Motion Control Levers in the set–up instructions. Check after every 500 operating hours or at storage, which ever comes first. 1. Stop the engine, remove ignition key and tilt seat forward. 1. Stop the engine, set the parking brake, remove the key and disconnect the spark plug wire(s) from the spark plug(s). 2. Begin with either the left or right motion control lever. 3.
9. Repeat on the opposite side of unit. Warning Engine must be running so motion control adjustment can be performed. Contact with moving parts or hot surfaces may cause personal injury. 8 1 4 3 Keep hands, feet, face, clothing and other body parts away from rotating parts, muffler and other hot surfaces. 9 This adjustment must be made with drive wheels turning. 1. Raise the frame and block up the machine so drive wheels can rotate freely. 2 6 2 2.
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. • Never operate this unit with jumper installed and seat switch bypassed. 1 7. After both pump neutrals are set, shut off the machine. 8. Remove jumper wire from wire harness connector and plug connector into seat switch. 3 2 9. Reinstall prop rod and lower the seat into position. 10.
2 3 4 5 7 6 1 4 1 3 m–6280 M–4120 Figure 47 Figure 46 1. Pump rod 2. Turn this way to track left 2 1. 2. 3. 4. 3. Tracking knob 4. Turn this way to track right Brake lever Spring 2–3/4 inch (70 mm) Adjusting nuts Collar on brake rod 5. 3/16 –1/4 inch (5–7 mm) 6. Jam nut and yoke 7. Trunion Adjusting the Parking Brake Check parking brake for proper adjustment. Servicing the Fuse 1. Disengage brake lever (lever down). Service Interval/Specification 2. Measure the length of the spring.
Servicing the Battery Danger Warning Battery electrolyte contains sulfuric acid which is a deadly poison and causes severe burns. CALIFORNIA • 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.
9 5 4 11 Warning 2 Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. 7 6 7 • Always Disconnect the negative (black) battery cable before disconnecting the positive (red) cable. • Always Reconnect the positive (red) battery cable before reconnecting the negative (black) cable. 3 8 10 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to off.
Charging the Battery Servicing the Hydraulic System Warning Checking the Hydraulic Fluid Charging the battery produces gasses that can explode. Check the hydraulic fluid level: Never smoke near the battery and keep sparks and flames away from battery. • Before the engine is first started. 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). • After every 25 operating hours.
Important Do not substitute automotive oil filter or severe hydraulic system damage may result. 1 2 3. Place drain pan under filter, remove the old filter and wipe the filter adapter gasket surface clean (Fig. 53). 4 3 1 m–5615 Figure 52 1. Cap 2. Baffle M–4763 3. Cold fluid level—full 4. Hot fluid level—full Figure 53 1. Hydraulic filter 4. Apply a thin coat hydro fluid to the rubber gasket on the replacement filter (Fig. 54).
Checking the Hydraulic Lines 1 After every 100 operating hours, check hydraulic lines and hoses for leaks, loose fittings, kinked lines, loose mounting supports, wear, weather and chemical deterioration. Make necessary repairs before operating. 3 2 Note: Keep areas around hydraulic system clean from grass and debris build up. Adjusting the Push Arms m–1256 Figure 54 1. Hydraulic filter 2. Gasket 1. To adjust push arms, loosen jam nut and rotate ball joint counterclockwise, one turn at a time. (Fig.
Inspecting the Belts 5. Remove spring loaded idler pulley (Fig. 56). 6. Route new belt through idler arm (Fig. 56). Inspect all belts every 100 hours. 7. Reinstall idler pulley and route belt onto other pulleys (Fig. 57). 1. Check belts for cracks, frayed edges, burn marks or any other damage. Replace damaged belts. 8. Retighten outer nut on spring eye bolt (Fig. 56). Replacing the Deck Belt Note: Check spring length. The spring should measure 9–3/8 inch ± 1/8 inch (238 mm ± 3 mm) when installed.
4 5 8 1 3 6 4 2 3 5 1 6 2 7 m–4119 Figure 58 1. Clutch strap 2. Bolt 3. Clutch electrical wire m–5037 4. Belt 5. Idler 6. Clutch Figure 59 1. 2. 3. 4. 5. Replacing the Grass Deflector Warning Bolt Spacer Locknut Spring Spring installed 6. Grass Deflector 7. Place behind deck edge before installing bolt 8. Hook end of spring Waste Disposal 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.
Mercury Tilt Switch Disposal 8. Charge the battery; refer to Servicing the Battery page 37. Several states have passed laws concerning the disposal of devices containing mercury. In all the remaining states it is advisable to follow similar procedures. The laws state that these sealed devices contain mercury and should not be placed in the garbage until the mercury is removed and reused, recycled or otherwise managed to insure that it does not become part of solid waste or waters.
GND BK BK LT.BU LT.BU DK.GN DK.GN SHOWN WITH SW5 LEVER IN (NEUTRAL) NEUTRAL POSITION LT.
Troubleshooting Problem Starter does not crank Engine will not start, starts hard, or fails to keep running. Engine g loses power. Engine g overheats. Possible Causes Corrective Action 1. Blade control (PTO) is engaged. 1. Move blade control (PTO) to disengage. 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. 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. 3. Engine pulley is damaged. 2. Tighten the appropriate pulley. 3.
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.
