Form No. 3352-208 Z380 and Z420 TimeCutter) Z with Side Discharge Mower Model No. 74301—Serial No. 250000001 and Up Model No. 74330—Serial No. 250000001 and Up Operator’s Manual Register your product at www.Toro.
Warning Testing the Safety Interlock System . . . . . . . . . . . . Driving Forward or Backward . . . . . . . . . . . . . . . . Stopping the Machine . . . . . . . . . . . . . . . . . . . . . . Adjusting the Height of Cut . . . . . . . . . . . . . . . . . . Positioning the Seat . . . . . . . . . . . . . . . . . . . . . . . . Adjusting the Motion Control Levers . . . . . . . . . . Pushing the Machine by Hand . . . . . . . . . . . . . . . . Adjusting the Footrest . . . . . . . . . . . . . . . . . . . . . .
Safe Operating Practices 1 The following instructions are from ANSI standard B71.1—2003. This product is capable of amputating hands and feet and throwing objects. Always follow all safety instructions to avoid serious injury or death. General Operation m–7865 • Read, understand, and follow all instructions in the operator’s manual and on the machine before starting. Figure 1 1. Model and serial number plate • Do not place hands or feet near rotating parts or under the machine.
Children • Always wear safety goggles or safety glasses with side shields when operating mower. Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the machine and the mowing activity. Never assume that children will remain where you last saw them. • Data indicates that operators, age 60 years and above, are involved in a large percentage of riding mower–related injuries.
• Do not touch equipment or attachment parts which may be hot from operation. Allow to cool before attempting to maintain, adjust or service. • If fuel is spilled on clothing, change clothing immediately. • Never overfill the fuel tank. Replace gas cap and tighten securely. • Never run a machine inside a closed area. • Battery acid is poisonous and can cause burns. Avoid contact with skin, eyes, and clothing. Protect your face, eyes, and clothing when working with a battery.
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. Note: If needed, a Decal Kit, 108–6110, and French manual are available. Order the Decal Kit from the Toro Parts Department and the French manual from either the Toro Parts Department or online at www.toro.com. 68-3650 68-3660 105-7015 79-3140 108-2392 93-1122 106-2224 1. 2. 3. 4.
6-8743 1. Height of cut 108-6109 1. To push the machine, move tow levers forward and then out to lock them into position 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. 106-8716 106-8742 1. Parking brake 107-7398 10 7.
Gasoline and Oil Recommended Gasoline Warning Use UNLEADED Regular Gasoline suitable for automotive use (87 pump octane minimum). Leaded regular gasoline may be used if unleaded regular is not available. Gasoline is harmful or fatal if swallowed. Long–term exposure to vapors can cause serious injury and illness. Important Never use methanol, gasoline containing methanol, or gasohol containing more than 10% ethanol because the fuel system could be damaged. Do not mix oil with gasoline.
Operation Controls Become familiar with all of the controls (Fig. 3 and 4) before you start the engine and operate the machine. Note: Determine the left and right sides of the machine from the normal operating position. 2 Think Safety First 3 Please carefully read all of the safety instructions and decals in the safety section. Knowing this information could help you, your family, pets or bystanders avoid injury. 1 Danger Mowing on wet grass or steep slopes can cause sliding and loss of control.
2. Move the PTO to Off (Fig. 5). 2. Move the PTO (power take off) to Off (Fig. 5). 3. Turn the ignition key to Off (Fig. 7). 2 1 4. Pull the wire off of the spark plug(s) to prevent the possibility of someone accidentally starting the machine before transporting or storing the machine. 5. Close the fuel shut-off valve under the front of the fuel tank before transporting or storing the machine. m–4201 Figure 5 1.
Understanding the Safety Interlock System Forward 1. Move the levers to the center, unlocked position. The safety interlock system is designed to prevent the engine from starting unless: 2. To go forward, slowly push the motion control levers forward (Fig. 9). • The PTO is disengaged. 2 • The motion control levers are in the brake position.
Positioning the Seat Warning The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable. Children or bystanders may be injured if they move or attempt to operate the mower while it is unattended. 1. Raise the seat and loosen the adjustment knobs enough to move the seat (Fig. 11).
Adjusting the Motion Control Levers The motion control levers can be adjusted higher or lower for maximum operator comfort. 3 1. Remove the 2 bolts holding the control lever to the control arm shaft (Fig. 12). 1 2. Move the control lever to the next set of holes. Secure the lever with the 2 bolts (Fig. 12). 2 m–7873 1 Figure 13 1. Bypass levers 2. Lever position for pushing the machine 2 3 3.
Removing and Installing the Engine Hood 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. To remove the hood, loosen the knobs and then pull the hood back and up (Fig. 15). m–6480 1 • Never remove the grass deflector from the mower because the grass deflector routes material down toward the turf.
Mow at Correct Intervals Normally, mow every four days. But remember, grass grows at different rates at different times. So to maintain the same cutting height, which is a good practice, mow more often in early spring. As the grass growth rate slows in mid summer, mow less frequently. If you cannot mow for an extended period, first mow at a high cutting height; then mow again two days later at a lower height setting. Cutting Speed To improve cut quality, use a slower ground speed.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule Maintenance Service Interval Each use After first 5 hours Maintenance Procedure • Check the engine oil level. • Check the safety system. • Clean the mower housing. • Change the engine oil. Every 5 hours • Check the cutting blades. Every 25 hours • • • • • • Every 50 hours • Change the engine oil.2 Every 100 hours • • • • • Clean the cooling system.
Servicing the Engine Oil 1 2 Check the oil level daily or after every 8 hours. Change the oil after the first 5 operating hours and every 50 operating hours thereafter. Oil Type: Detergent oil (API service SF, SG, SH, SJ, or higher) Crankcase Capacity: 3 • 48 oz./1-1/2 qt. (1400 cc/1.4 l) when the filter is not changed; • 56 oz./1-3/4 qt. (1700 cc/1.7 l) when the filter is changed (Model 74330 only) m–6439 Figure 17 1. Oil dipstick 2. Filler tube Viscosity: See the table below. 3.
2. Remove the old filter and wipe the filter adapter gasket surface (Fig. 20). 3. Disengage the PTO and set the parking brake. 4. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Apply a thin coat of clean oil to the rubber gasket on the replacement filter (Fig. 20). 5. Slide the drain hose over the drain valve. 6. Place a pan below the drain hose. Rotate oil drain valve to allow oil to drain (Fig. 19). 3 7.
Important worn. 2 1 Replace the foam element if it is torn or Cleaning the Paper Element: 1. Lightly tap the element on a flat surface to remove dust and dirt. 2. Carefully clean the rubber seal on the paper element to prevent debris from entering the engine. 3. Inspect the element for tears, an oily film, and damage to the rubber seal. Important Never clean the paper element with pressurized air or liquids, such as solvent, gas, or kerosene.
Servicing the Cutting Blades 1 Maintain sharp blades throughout the cutting season because sharp blades cut cleanly without 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 Check the cutter blades daily for sharpness, and for any wear or damage. File 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.
Checking for Bent Blades 1. Rotate the blades until the ends face forward and backward (Fig. 26). Measure from a level surface to the cutting edge, position A, of the blades (Fig. 26). Note this dimension. 2 m–6427 A 1 5 3 A 4 m–6430 Figure 27 1. Sail area of blade 2. Blade 3. Curved washer Sharpening the Blades 3 3 4. Blade bolt 5. Blade stiffener 1. Use a file to sharpen the cutting edge at both ends of the blade (Fig. 28). Maintain the original angle.
2. Install the blade stiffener, the curved washer (cupped side toward the blade) and the blade bolt (Fig. 27). Torque the blade bolt to 35–65 ft-lb (47–88 N⋅m). Greasing and Lubrication Lubricate the machine when shown on the Check Service Reference Aid decal (Fig. 30) located beneath the seat. Grease more frequently when operating conditions are extremely dusty or sandy. 1 Grease with No. 2 general purpose lithium base or molybdenum base grease. How to Grease m–6435 1.
Removing the Battery 3 2 Warning 1 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. 5 • When removing or installing the battery, do not allow the battery terminals to touch any metal parts of the machine. • Do not allow metal tools to short between the battery terminals and metal parts of the machine. 6 4 m–6414 Figure 32 1.
1. Remove the battery from the chassis; refer to Removing the Battery, page 26. 1. Tip the seat forward to see the battery. 2. Look at the side of the battery. The electrolyte must be up to the Upper line (Fig. 33). Do not allow the electrolyte to fall below the Lower line (Fig. 33). 2. Check the electrolyte level; refer to Checking the Electrolyte Level, page 26. 3. Make sure that the vent caps are installed in the battery. Charge the battery for 1 hour at 25 to 30 amps or 6 hours at 4–6 amps.
3. Close the fuel shut-off valve located under the front of the fuel tank. 6. Install a new filter and move the hose clamps close to the filter (Fig. 35). 4. Loosen the hose clamp at the fuel filter and slide it up the fuel line away from the fuel filter (Fig. 35). 7. Open the fuel shut-off valve. 5. Pull the fuel line off of the fuel filter (Fig. 35). Checking the Tire Pressure Maintain the air pressure in the front and rear tires as specified. Uneven tire pressure can cause uneven cut.
1 2 m–6426 3 3 2 2 1 4 3 m–6432 3 Figure 39 3 1. Hairpin cotter and washer 2. Leveling bracket—38 inch model shown Figure 37 1. Blades side to side 2. Outside cutting edges 3. Front hole 4. Rear hole 3. Measure here 8. Check the front-to-rear blade slope; refer to Adjusting the Front-to-Rear Blade Slope, page 29. 6. Remove the hairpin cotter and washer from the leveling bracket (Fig. 38). Adjusting the Front-to-Rear Blade Slope 7.
11. To raise the front of the mower, tighten the adjustment nuts. To lower the front of the mower, loosen the adjustment nuts. 7. Install the end of the rod into the hole in the mower mount and secure it with the washer and hairpin cotter. Repeat steps 5 through 7 for the opposite side of the mower. 12. After adjusting both adjustment nuts evenly, check the front-to-rear slope again. Continue adjusting the nuts until the front blade tip is 1/16–5/16 inch (1.6–7.9 mm) lower than the rear blade tip (Fig.
4. Remove the belt covers over the outside spindles and loosen the belt guide (Fig. 43). 5 5. Pull the idler pulley in the direction shown in Figure 43 and roll the belt off of the pulleys. 6 1 1 3 Warning 6 The spring is under tension when installed and can cause personal injury. Be careful when removing the spring. 3 6. Route the new belt around the engine pulley and mower pulleys (Fig. 43). 2 7.
Installing the Mower 4. Remove the hairpin cotter and clevis pin from the front support rod on each side of the mower.(Fig. 44). 1. Park the machine on a level surface and disengage the blade control (PTO). 2. Move the motion control levers to the brake position, stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Slide the mower under the machine. 4. Lower the height-of-cut lever to the lowest position. 5.
Washing the Underside of the Mower Warning A broken or missing washout fitting could expose you and others to thrown objects or blade contact. Contact with blade or thrown debris can cause injury or death. After each use, wash the underside of the mower to prevent grass buildup for improved mulch action and clipping dispersal. 1. Park the machine on a level surface and disengage the blade control (PTO). • Replace broken or missing washout fitting immediately, before using mower again.
Important The grass deflector must be spring loaded in the down position. Lift the deflector up to test that it snaps to the full down position. 5 3 4 2 1 6 7 m–6461 Figure 48 1. 2. 3. 4. Grass deflector Grass deflector bracket Spring Rod 5. Nut, 3/8 inch 6. Rubber o–ring 7.
BK BN GREEN GREY ORANGE GN GY OR PTO CLUTCH BLUE BU BK Y W GY BN BROWN BN Y W VIO T R PK SW2 (PTO) 4 Y GN W SHOWN WITH PARK BRAKE DISENGAGED SW5 (BRAKE) SHOWN WITH PARK BRAKE DISENGAGED SW3 (BRAKE) PK YELLOW WHITE VIOLET TAN RED PINK SHOWN IN OFF POSITION 7 BLACK 1 GND WIRE COLOR CODES 5 2 4 3 35 1 I OR OR X K1 (KILL RELAY) W Y SW4 (SEAT) SHOWN WITH OPERATOR IN SEAT PK Y BU BU S A VIO B R SOLENOID F1 SW1 (IGNITION) BK Y F2 GND 10A F3 25A X
Cleaning and Storage crank the engine and distribute the oil inside the cylinder. Install the spark plug(s). Do not install the wire on the spark plug(s). 1. Disengage the PTO, set the parking brake, stop the engine, and remove the key. 12. Clean any dirt and chaff from the top of the mower. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine. Clean dirt and chaff from the outside of the engine cylinder head fins and blower housing. 13.
Troubleshooting Problem The engine g overheats. The starter does not crank. The engine g will not start, starts h d or fails hard, f il to t keep k running. i Possible Causes Corrective Action 1. The engine load is excessive. 1. Reduce ground speed. 2. The oil level in the crankcase is low. 2. Add oil to the crankcase. 3. The cooling fins and air passages under the engine blower housing are plugged. 3. Remove the obstruction from the cooling fins and air passages. 4. The air cleaner is dirty. 4.
Problem The engine g loses power. p The machine does not drive. There is abnormal vibration. Uneven cutting g height. g Possible Causes Corrective Action 1. The engine load is excessive. 1. Reduce ground speed. 2. The air cleaner is dirty. 2. Clean the air cleaner element. 3. The oil level in the crankcase is low. 3. Add oil to the crankcase. 4. The cooling fins and air passages under the engine blower housing are plugged. 4. Remove the obstruction from the cooling fins and air passages. 5.
Problem The blades do not rotate. Possible Causes Corrective Action 1. The drive belt is worn, loose or broken. 1. Install a new drive belt. 2. The drive belt is off of the pulley. 2. Install the drive belt and check the adjusting shafts and belt guides for the correct position. 3. The mower belt is worn, loose, or broken. 3. Install a new mower belt.
Consumer TimeCutter The Toro Total Coverage Guarantee A Two-Year Full Warranty (Limited Warranty for Commercial Use) 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 any Toro Product used for normal residential purposes* if defective in materials or workmanship.
