Form No. 3328–239 Z253 and Z257 Z Master with 62 SFS Side Discharge Mower Model No. 74225–230000001 & Up Model No.
Warning Checking the Side Discharge Chute . . . . . . . . . . Checking the Level of the Mower . . . . . . . . . . . . Checking the Engine Oil Level . . . . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Think Safety First . . . . . . . . . . . . . . . . . . . . . . . . Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating the Parking Brake . . . . . . . . . . . . . . . . Starting and Stopping the Engine . . . . . . . . . . . .
Replacing the PTO Drive Belt . . . . . . . . . . . . . . . Replacing the Grass Deflector . . . . . . . . . . . . . . . Mercury Tilt Switch . . . . . . . . . . . . . . . . . . . . . . . Disposing the Mercury Tilt Switch . . . . . . . . . . . Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . Cleaning and Storage . . . . . . . . . . . . . . . . . . . . . . Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . The Toro Total Coverage Guarantee . . . . . . . . . . . . .
• The owner/user can prevent and is responsible for accidents or injuries occurring to himself or herself, other people or property. • Do not change the engine governor setting or overspeed the engine. • Stop on level ground, lower implements, disengage drives, engage parking brake (if provided), shut off engine before leaving the operator’s position for any reason including emptying the catchers or unclogging the chute.
• 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. • Stop the engine before removing the grass catcher or unclogging the chute. • 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. • Watch for traffic when operating near or crossing roadways.
• Check carefully for overhead clearances (i.e. branches, doorways, electrical wires) before driving under any objects and do not contact them. DO NOT • Do not mow slopes exceeding 15 degrees. • Avoid turning on slopes. If you must turn, turn slowly and gradually downhill, if possible. • Do not mow near drop-offs, ditches, or embankments. The machine could suddenly turn over if a wheel goes over the edge of a cliff or ditch, or if an edge caves in. • Do not mow on wet grass.
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.
1-633818 93-1122 43-8480 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.). 66-1340 98-3798 67-5360 98-4387 1. Warning—wear hearing protection.
98-5954 103-0368 104-4163 1. Explosion hazard 2. No fire, open flames, or smoking. 3. Caustic liquid/chemical burn hazard 99-4632 1. Engine—stop 2. Engine—run 4. Wear eye protection 5. Read the Operator’s Manual. 6. Keep bystanders a safe distance from the battery. 3.
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 5. Sulfuric acid can cause blindness or severe burns. 6. Flush eyes immediately with water and get medical help fast. 103-2433 100-4311 12 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.
Setup Loose Parts Note: Use the chart below to verify all parts have been shipped. DESCRIPTION QTY.
3. Place the seat retaining rod to the outside of the mounting tab of the seat frame and secure with a bolt (5/16 x 1 inch) bolt and locknut 5/16 inch (Fig. 3). 4. Tighten until snug, then loosen so the rod pivots freely. 2 1 1 4 2 5 6 3 m–5596 Figure 4 1. Mounting plate 2. Bolt, 3/8 x 1 inch 3. Spring washer, 3/8 inch 4. Top hole 5. Middle hole 6. Bottom hole 3 5.
Danger Battery electrolyte contains sulfuric acid which is a deadly poison and causes severe burns. 2 • 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. 3 1 m–5004 Figure 6 1. Filler caps 2. Upper line 3. Lower line 1.
1 4. Install the valve cover screws into air cleaner bracket and the valve covers (Fig. 7). Important Tighten the valve cover screws to 70 in–lb (5 N m) torque. 5. Remove the plastic plugs from air intake elbow on engine and air cleaner hose (Fig. 7). 6. Install hose to air intake elbow and air cleaner. Tighten hose clamps to secure the hose connections (Fig. 7). 1 2 2 M–5035 Figure 8 1.
Operation 3 2 Note: Determine the left and right sides of the machine from the normal operating position. 1 6 8 7 4 Think Safety First Please read all safety instructions and symbols in the safety section. Knowing this information could help you, your family, pets or bystanders avoid injury. The use of protective equipment for eyes, ears, feet and head is recommended.
Close fuel shut off valve, on front panel before transporting or storing machine. 1 1 2 Figure 12 1. Shut off valve Operating the Parking Brake 3 m–4163 Always set the parking brake when you stop the machine or leave it unattended. Figure 13 1. Parking brake-ON 2. Parking brake-OFF Setting the Parking Brake 1. Move the motion control levers (Fig. 10) out to the neutral lock position. 3. Brake Stop Starting and Stopping the Engine 2.
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. 2 1 2 Caution 1 Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended. m–4201 m–2719 Figure 14 Figure 15 1. PTO-On 2.
The Safety Interlock System the engine is running, release the parking brake, engage the PTO and rise slightly from the seat; the engine should stop. Caution 4. Sitting on the seat, engage the parking brake, move 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.
To stop pull the motion control levers to neutral. 1. Raise the height-of-cut lever to the transport position (also the 5 inch (127 mm) cutting height position) (Fig. 20). 2. To adjust, remove hairpin cotter and clevis pin from height-of-cut bracket (Fig. 20). 2 3 3. Select hole in height-of-cut bracket corresponding to the height-of-cut desired and, insert clevis pin (Fig. 20). 1 4 4. Secure clevis pin with hairpin cotter (Fig. 20). m–2715 5. Move lever to selected height. Figure 19 1.
Adjusting the Anti-Scalp Rollers 2. Slide the seat to the desired position and release lever to lock in position. Whenever you change the height-of-cut it is recommended to adjust the height of the anti-scalp rollers. 1. Disengage the power take off (PTO) and turn the ignition key to off. Move levers to neutral locked position and apply parking brake. Remove the key. 2. After adjusting height-of-cut remove flange nut and spring disk while holding stud with wrench (Fig. 22).
Transporting Machines 1 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. To transport the machine: • Lock brake and block wheels. • Securely fasten the machine to the trailer or truck with straps, chains, cable, or ropes.
Warning 4 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. • Use only a single, full width ramp; DO NOT use individual ramps for each side of the unit. • If individual ramps must be used, use enough ramps to create an unbroken ramp surface wider than the unit. • Do not exceed a 15 degree angle between ramp and ground or between ramp and trailer or truck.
8. Perform maintenance. Mowing Direction 9. Remove chocks or blocks. Alternate mowing direction to keep the grass standing straight. This also helps disperse clippings which enhances decomposition and fertilization. Driving off the Z Stand 1. Remove the chocks or blocks. Mow at Correct Intervals 2. Raise latch to unlocked position (Fig. 27). Normally, mow every four days. But remember, grass grows at different rates at different times.
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.
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.
Sharpening the Blades Warning MEASURE FROM CUTTING EDGE TO A LEVEL SURFACE When sharpening blade, pieces of blade could be thrown and cause serious injury. m–2539 Wear proper eye protection when sharpening blade. Figure 30 2. Rotate the opposite ends of the blades forward. 1. Use a file to sharpen the cutting edge at both ends of the blade (Fig. 31). Maintain the original angle. The blade retains its balance if the same amount of material is removed from both cutting edges. 3.
3 3 5 4 4 1 2 1 3 4 5 M–4226 2 Figure 33 1. Sail Area of Blade 2. Blade 3. Spring Disk 1 4. Blade Bolt 5. Cone Towards Bolt Head m–4815 Figure 34 1. Latches 2. Air cleaner cover 3. Air filter body 4. Primary filter 5. Safety filter Servicing the Air Cleaner Servicing the Primary Filter Primary Filter: Clean or replace after every 200 operating hours. Blow compressed air from the inside to the outside of the primary filter. Safety Filter: Replace after every 600 operating hours.
Servicing the Engine Oil 2 1 3 Change oil: • After the first 8 operating hours. • After every 100 operating hours. Note: Change oil more frequently when operating conditions are extremely dusty or sandy. Oil Type: Detergent oil (API service SG or SH) Crankcase Capacity: w/filter, 67 oz. (2.0 l) m–4811 Figure 35 Viscosity: See table below 1. Oil dipstick 2. Filler tube USE THESE SAE VISCOSITY OILS 10W–30, 10W–40 0 –30 C –20 20 –10 3. Metal end Changing the Oil 1.
Change the Oil Filter 2. Pull the wire(s) off the spark plug(s) (Fig. 38). Now clean around the spark plug(s) to prevent dirt from falling into the engine and potentially causing damage. Replace the oil filter every 200 hours or every other oil change. 3. Remove the spark plug(s) and metal washer. Note: Change oil filter more frequently when operating conditions are extremely dusty or sandy. 1. Drain the oil from the engine; refer to Changing/Draining Oil, page 31. 2.
Servicing the Fuel Tank 2. Tighten the spark plug(s) to 20 ft-lb (27 N.m). 3. Push the wire(s) onto the spark plug(s) (Fig. 38). Draining The Fuel Tank Servicing the Fuel Filter Danger Replace the fuel filter after every 200 operating hours or yearly, whichever occurs first. 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.
Greasing and Lubrication Lubricate the machine when shown on the Check Service Reference Aid decal (Fig. 42). Grease more frequently when operating conditions are extremely dusty or sandy. Grease Type: General-purpose grease. How to Grease 1. Disengage the power take off (PTO) and turn the ignition key to off. Move levers to neutral locked position and apply parking brake. Remove the key. 2. Clean the grease fittings with a rag. Make sure to scrape any paint off the front of the fitting(s). 3.
1 3 2 m–5616 m–3801 Figure 45 1. Panel 2. Engine shroud 3. Screws M–5035 Figure 43 Checking the Tire Pressure Maintain the air pressure in the front and rear tires as specified. Uneven tire pressure can cause uneven cut. Check the pressure at the valve stem after every 50 operating hours or monthly, whichever occurs first (Fig. 46). Check the tires when they are cold to get the most accurate pressure reading.
5. If more than two threads are showing remove nut and install washer between hub and nut (Fig. 47). 3 2 6. Torque the slotted nut to 125 ft–lb. (170 N m) (Fig. 47). 1 7. Tighten nut until the next set of slots line up with the hole in the shaft (Fig. 47). 8. Replace cotter pin. M–4640 1 Figure 48 4 1. Spring Washers 2. Lock Nut 3 2 3. Dust Cap Servicing the Hydraulic System m–4638 Figure 47 1. Slotted Nut 2. Two threads or less showing Checking the Hydraulic Fluid 3. Hole in threaded rod 4.
6. Recheck the fluid level while the fluid is warm. If required, add fluid to the reservoir until it reaches the hot level of the baffle. • After the first 8 operating hours. Note: The fluid level should be to the top of the hot level of the baffle, when the fluid is warm (Fig. 49). 1. Disengage the power take off (PTO) and turn the ignition key to off. Move levers to neutral locked position and apply parking brake. Remove the key. • After every 200 operating hours. 7. Install cap on filler neck.
Warning 1 3 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. • 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 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 52 1. Neutral locked position 2. Control lever • Use jack stand when supporting machine. • Do not use hydraulic jacks. 3. Neutral potion Warning 6. If adjustment is needed, loosen the nut and jam nut against the yoke (Fig. 53). 7.
2 1 Warning 4 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. 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. 9. Reinstall prop rod and lower the seat into position.
2. Measure the length of the spring. Measurement should be 2-3/4 inch (70 mm) between washers (Fig. 57). 2 3. If adjustment is necessary, loosen the jam nut below the spring and tighten the nut directly below the yoke (Fig. 57). Turn the nut until the correct measurement is obtained. Tighten the two nuts together and repeat on opposite side of unit. 3 4 4. Turn nuts clockwise to shorten spring length and turn counter–clockwise to lengthen the spring. 1 5. Engage parking brake, lever up. A.
2 Danger Battery electrolyte contains sulfuric acid which is a deadly poison and causes severe burns. 1 • 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. m–3653 Figure 58 1. Main-30 amp 2.
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 Leveling the Mower 1. Position mower on a flat surface. Stop the engine, set the parking brake, remove the key and disconnect the spark plug wire(s) from the spark plug(s). Warning Charging the battery produces gasses that can explode. 2. Check tire pressure of all four tires. If needed, adjust to 13 psi (90 kPa) Never smoke near the battery and keep sparks and flames away from battery. 3. Set anti–scalp rollers to top holes or remove them completely for this adjustment. 4.
Warning 1 Unit could fall onto someone and cause serious injury or death. 3 4 2 • Use extreme caution when operating unit on Z Stand. • Use only for cleaning deck and removing blades. • Do not keep unit on Z Stand for extended periods of time. • Always shut engine off and set parking brake before performing any maintenance to deck. 2 m–3747 Figure 63 1. 19–17/32 inch (496 mm) outside swivels 2. Top chain bolt 3. Front swivel 4.
4 1 6 6 4 5 7 m–4451 2 3 2 3 1 M–4312 M–4373 Figure 64 Figure 65 Top View 1. Deck Belt 2. Idler Arm 1. 2. 3. 4. 3. Idler nuts 4. Idler adjusting nut 6. Reinstall the PTO drive belt. Refer to Replacing the PTO Drive Belt, page 46. Clutch Clutch retaining strap clutch Terminal PTO belt 5. Machine Frame 6. 1/4 inch Belt Twist 7. 1/8 inch Belt Twist 6. Check belt tension. The center bolt of spring loaded idler must be between the two alignment holes in left support plate (Fig 66).
7. If adjustment is required, loosen the fixed idler on right support plate and move up or down in adjustment slot. To relieve belt tension lift up on spring loaded idler. 11. Rotate the belt guide, on rear of the mower, so it is 1/8–1/4 inch (3–7 mm) away from the vertical side of the PTO belt (Fig. 69). 1 1 2 2 3 M–4374 Figure 69 1. Belt guide 2. PTO Drive belt m–3746 3. 1/8–1/4 inch (3–7 mm) Figure 67 1. Fixed Idler 2. Adjustment slot Replacing the Grass Deflector 8. Check belt tension again.
Return the switch to your Toro dealer if it is faulty and is being replaced or if the unit containing the switch is no longer operating and is being scrapped. If the switch is damaged or broken open use extreme caution in handling. Call your local waste management authority or Toro Customer Service for instructions. 8 6 4 2 3 5 1 Caution The mercury contained in the tilt switch is poisonous and exposure to mercury can cause severe illness. 7 • Never attempt to open or repair the tilt switch.
BK BK BN GND PTO CLUTCH VIO (NEUTRAL) SW5 W VIO Y SHOWN WITH LEVER IN NEUTRAL POSITION SHOWN WITH LEVER IN NEUTRAL POSITION Y SHOWN IN OFF POSITION GY SW4 (NEUTRAL) SHOWN WITH PARK BRAKE DISENGAGED SW3 (BRAKE) BN SW2 (PTO) OR BK P1–B T K2 (START RELAY) P2–C Y SW6 (SEAT SW) SHOWN WITH OPERATOR IN SEAT SW7 (TILT SW) SWITCH OPENS WHEN TILTED PAST 60 DEGREES FROM VERTICAL P1–A DELAY MODULE 100–6186 P1–C PK B KEY SW S I TERMINAL VIEW FROM BACK OF SWITCH A Y X NO CONNECTION B
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 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.
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. Cutting blade(s) is/are bent or unbalanced. 1. Install new cutting blade(s). 2. Blade mounting bolt is loose. 2. Tighten blade mounting bolt. 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.
