Form No. 3365-925 Rev A TimeCutter® Z4235 Riding Mower Model No. 74365—Serial No. 310000001 and Up Model No. 74366—Serial No. 310000001 and Up Model No. 74376—Serial No. 310000001 and Up To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com.
Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service Dealer or Toro Customer Service and have the model and serial numbers of your product ready. Figure 1 identifies the location of the model and serial numbers on the product. Write the numbers in the space provided. This machine is a ride-on, rotary-blade lawnmower intended to be used by homeowners in residential applications. It is primarily designed for cutting grass on well-maintained lawns.
Contents Washing the Underside of the Mower .................. 40 Storage....................................................................... 41 Cleaning and Storage .......................................... 41 Troubleshooting......................................................... 43 Schematics ................................................................. 45 Introduction................................................................. 2 Safety ....................................................
Safety • Never leave a running machine unattended. Always turn off blades, set parking brake, stop engine, and remove key before dismounting. • Turn off blades when not mowing. Stop the engine and wait for all parts to come to a complete stop before cleaning the machine, removing the grass catcher or unclogging the discharge chute. • Operate the machine only in daylight or good artificial light. • Do not operate the machine while under the influence of alcohol or drugs.
Towing • Remove or mark obstacles such as rocks, tree limbs, etc. from the mowing area. Tall grass can hide obstacles. A hitch kit is available for this machine and can be obtained by contacting an Authorized Toro Dealer. Do not tow without first installing this manufacturer approved hitch. The following guidelines apply when towing with the approved hitch kit installed. • Tow only with a machine that has a hitch designed for towing. Do not attach towed equipment except at the hitch point.
General Service: • Battery gases can explode. Keep cigarettes, sparks and flames away from battery. • Never operate a machine inside a closed area. Engine exhaust contains carbon monoxide, which is an odorless, deadly poison that can kill you. • Keep nuts and bolts tight, especially the blade attachment bolts. Keep equipment in good condition. • Never tamper with safety devices. Check their proper operation regularly. • Keep the machine free of grass, leaves, or other debris build-up.
Slope Indicator G011841 Figure 3 This page may be copied for personal use. 1. The maximum slope you can safely operate the machine on is 15 degrees. Use the slope chart to determine the degree of slope of hills before operating. Do not operate this machine on a slope greater than 15 degrees. Fold along the appropriate line to match the recommended slope. 2. Align this edge with a vertical surface, a tree, building, fence pole, etc. 3. Example of how to compare slope with folded edge.
Safety and Instructional 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. 114-1606 1. Entanglement hazard, belt—keep all guards in place. 93-7009 1. Warning—don’t 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. 99-3943 1. Engine Manufacturer’s Mark 1.
112-9750 110-6691 1. Parking position 2. Fast 3. Slow 1. Thrown object hazard—keep bystanders a safe distance from the machine. 2. Thrown object hazard, mower—do not operate without the deflector, discharge cover, or grass collection system in place. 3. Cutting/dismemberment of hand or foot—stay away from moving parts. 4. Neutral 5. Reverse 112-9751 1. Parking position 2. Fast 3. Slow 4. Neutral 5. Reverse 112-9802 112-9840 1. Height-of-cut 3.
114-8532 1. Bypass lever position for operating the machine Battery Symbols Some or all of these symbols are on your battery 2. Bypass lever position for pushing the machine 1. Explosion hazard 2. No fire, open flame, or smoking. 3. Caustic liquid/chemical burn hazard 4. Wear eye protection 5. Read the Operator’s Manual. 6. Keep bystandersa safe distance from the battery. 7. Wear eye protection; explosive gases can cause blindness and other injuries 8. Battery acid can cause blindness or severe burns.
7-7221 1. Fuel 2. Full 3. Half 4. Empty 117-7222 1. Fuel 2. Full 3. Half 11 4.
Product Overview Figure 4 1. Footrest 2. Height of cut lever 3. Fuel gauge 7. Rear drive wheel 8. Washout fitting 9. Mower deck 4. Control panel 5. Motion control levers 6. Operator seat 10. Anti-scalp roller 11. Front caster wheel 1 3 2 4 5 G013760 Figure 5 1. Motion control levers 2. Height of cut lever 3. Gas tank cap 4. Engine 5.
Controls Blade Control Switch (Power Take-Off) Become familiar with all of the controls in Figure 4, Figure 5, and Figure 6 before you start the engine and operate the machine. The blade control switch, represented by a power take-off (PTO) symbol, engages and disengages power to the mower blades (Figure 6). 3 2 4 Motion Control Levers and Park Position 1 The motion control levers are speed sensitive controls of independent wheel motors.
Operation Note: Determine the left and right sides of the machine from the normal operating position. Think Safety First 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. DANGER Figure 8 Mowing on wet grass or steep slopes can cause sliding and loss of control. 1. Safe Zone-use the TimeCutter here 2. Use walk behind mower and/or hand trimmer near drop-offs and water. 3.
DANGER WARNING 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. Gasoline is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness. • Avoid prolonged breathing of vapors. • Fill the fuel tank outdoors, in an open area, when the engine is cold. Wipe up any gasoline that spills. • Keep face away from nozzle and gas tank or conditioner opening.
Checking the Engine Oil Level Before you start the engine and use the machine, check the oil level in the engine crankcase; refer to Checking the Oil Level in the Engine Maintenance section. Starting and Stopping the Engine Starting the Engine 1. Sit down on the seat and move the motion controls outward to the park position. Figure 9 2. Disengage the blades by moving the blade control switch to Off (Figure 11) 1. Fuel gauge window Filling the Fuel Tank 1.
7 6 2 2 3 1 1 3 4 G005183 5 6 2 4 G005184 Figure 13 1. 2. 3. 4. 5 5. Run Control panel Ignition key—run position 6. Start Ignition key—start position 7. Choke control Off Figure 12 1. Control panel 2. Throttle 3. Fast 4. Continuous variable setting 5. Slow 6. Choke control 5. After the engine starts, push down on the Choke control (Figure 13). If the engine stalls or hesitates, pull up on the Choke control and let the engine run for a few seconds. Then push down on the Choke control.
The Safety Interlock System WARNING If safety interlock switches are disconnected or damaged the machine could operate unexpectedly causing personal injury. 2 • Do not tamper with the interlock switches. • Check the operation of the interlock switches daily and replace any damaged switches before operating the machine. G005185 1 Figure 14 1. Control panel Understanding the Safety Interlock System 2.
Driving Forward or Backward The throttle control regulates the engine speed as measured in rpm (revolutions per minute). Place the throttle control in the Fast position for best performance. Always operate in the full throttle position. WARNING The machine can spin very rapidly. The operator may lose control of the machine and cause personal injury or damage to the machine. • Use caution when making turns. • Slow the machine down before making sharp turns.
To turn, release the pressure on the motion control lever toward the direction you want to turn. 1. Raise the seat and loosen the adjustment knob just enough that seat can move (Figure 20). To stop, push the motion control levers to neutral. Stopping the Machine To stop the machine, move the motion control levers to neutral and outward to the park position, disengage the blade control switch, ensure the throttle is in the fast position, and turn the ignition key to off.
1 4. Move the bypass levers rearward and then down to lock them in place as shown in Figure 22 to disengage the wheel motors. Repeat this on each side of the machine. 2 3 4 5. Move the motion control levers inward to the neutral position. The machine is now able to be pushed by hand. G005062 Figure 21 1. Control arm shaft 2. Control lever 3. Slotted, upper hole 4. Bolt 3. Repeat the adjustment for the opposite control lever. Figure 22 Right side shown Adjusting the Tilt 1.
Grass Deflector Mowing Direction The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. Alternate mowing direction to keep the grass standing straight. This also helps disperse clippings which enhances decomposition and fertilization. DANGER Mow at Correct Intervals 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.
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.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Change the engine oil. Before each use or daily • • • • • • Check the safety interlock system. Check the engine oil level. Clean the air intake screen. Check the cutting blades. Inspect the grass deflector for damage Clean the mower housing.
Premaintenance Procedures Lubrication Raising the Seat Service Interval: Every 25 hours—Grease all lubrication points. Greasing the Bearings Make sure the motion control levers are locked in the park position. Lift the seat forward. Grease Type: No. 2 General Purpose Lithium Base Grease The following components can be accessed by raising the seat: 1. Park the machine on a level surface and disengage the blade control switch. • Serial plate 2.
Engine Maintenance 4. Connect a grease gun to each fitting (Figure 24 and Figure 25). Pump grease into the fittings until grease begins to ooze out of the bearings. Servicing the Air Cleaner 5. Wipe up any excess grease. Note: Service the air cleaner more frequently (every few hours) if operating conditions are extremely dusty or sandy. Removing the Element 1. Park the machine on a level surface and disengage the blade control (PTO). 2.
1. Lightly tap the element on a flat surface to remove dust and dirt. 2. Inspect the element for tears, an oily film, and damage to the seal. 2. Make sure the engine is stopped, level, and is cool so the oil has had time to drain into the sump. 3. To keep dirt, grass clippings, etc., out of the engine, clean the area around the oil fill cap/dipstick before removing it. Important: Never clean the paper element with pressurized air or liquids, such as solvent, gas, or kerosene.
Every 100 hours—Change the engine oil. (more often in dusty, dirty conditions) 5. Slowly pour approximately 80% of the specified oil into the filler tube and slowly add the additional oil to bring it to the Full mark (Figure 30). Note: Dispose of the used oil at a recycling center. 1. Start the engine and let it run five minutes. This warms the oil so it drains better. 1 2 3 4 5 6 2.
Removing the Spark Plug 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. G012157 1 2 3 4 5 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. G013793 6 Figure 32 Note: Due to the deep recess around the spark plug, blowing out the cavity with compressed air is usually the most effective method for cleaning.
Installing the Spark Plug Fuel System Maintenance Tighten the spark plug(s) to 16 ft-lb (22 N-m). 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. • Perform any fuel related maintenance when the engine is cold. Do this outdoors in an open area. Wipe up any gasoline that spills.
Electrical System Maintenance 6 WARNING CALIFORNIA Proposition 65 Warning Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling. 1 3 5 G005071 2 4 Charging the Battery Figure 35 1. Fuel line from tank 2. Hose clamp 3. Filter 4. Fuel line to engine 5. Flow direction arrow 6. Fuel tank Removing the Battery WARNING 4.
WARNING Incorrect battery cable routing could damage the machine and cables causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. • Always connect the positive (red) battery cable before connecting the negative (black) cable. Figure 37 1. Positive battery post 2. Negative battery post 5. Slide the rubber cover up the positive (red) cable.
Drive System Maintenance 30 Checking the Tire Pressure 25 Service Interval: Every 25 hours—Check tire pressure. 30 1 25 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 (Figure 39). Check the tires when they are cold to get the most accurate pressure reading. 2 g012173 Figure 38 1. Main-30 amp Tire Pressures 2. Charge circuit-25 amp Model 4. Return the control panel to its original position.
Mower Maintenance Servicing the Cutting Blades 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. Figure 40 1. Cutting edge 2. Curved area Check the cutter blades daily for sharpness, and for any wear or damage. File down any nicks and sharpen the blades as necessary.
3. Measure from the tip of the blade to the flat surface here. 1 1 G009680 3 2 G009680 3 Figure 44 Figure 42 1. Opposing blade edge, in position for measuring 2. Level surface 3. Second measured distance between blade and surface (B) 2 1. Blade, in position for measuring 2. Level surface 3. Measured distance between blade and surface (A) WARNING A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders. 4.
Leveling the Mower Deck Check to ensure the mower deck is level any time you install the mower or when you see an uneven cut on your lawn. The mower deck must be checked for bent blades prior to leveling; any bent blades must be removed and replaced. Refer to the Checking for Bent Blades procedure before continuing. Figure 45 The mower deck must be leveled side-to-side first then the front to rear slope can be adjusted. 4. Blade bolt 5. Blade stiffener 1. Sail area of blade 2. Blade 3.
G005278 2 3 3 1 2 4 4 1 3 4 6 Figure 49 Mower Decks with 3 Blades 1. Blades side to side 2. Sail area of blade 3. Outside cutting edges 4. Measure from the tip of the blade to the flat surface here 2 5 G005074 5. Measure between the outside cutting edges and the flat surface (Figure 48 and Figure 49). If both measurements are not within 3/16 inch (5 mm), an adjustment is required; continue with this procedure. Figure 50 1. Hanger bracket 2. Rear locking nut 3. Side locking nut 6.
2 1 G009658 2 Figure 51 Mower Decks with 2 Blades 1. Blades front to rear 2. Measure from the tip of the blade to the flat surface here 3 2 Figure 53 1. Adjusting rod 2. Adjusting block 1 2 7. To raise the front of the mower, tighten the adjustment nut. To lower the front of the mower, loosen the adjustment nut. 3 G009659 Figure 52 Mower Decks with 3 Blades 1. Blades front to rear 3. Lock nut 8. After adjustment, check the front-to-rear slope again.
Mower Belt Maintenance Inspecting the Belts Service Interval: Every 25 hours—Check the belts for wear/cracks. Check the belts for cracks, frayed edges, burn marks, or any other damage. Replace damaged belts. Replacing the Mower Belt Squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks and cracks are signs of a worn mower belt. Contact an Authorized Service Dealer to replace the mower belt if any of these conditions are evident.
Cleaning 1. Locate items shown in Figure 56. 3 Washing the Underside of the Mower 4 5 Service Interval: Before each use or daily—Clean the mower housing. 6 Wash the underside of the mower after each use to prevent grass buildup for improved mulch action and clipping dispersal. 1. Park the machine on a level surface and disengage the blade control switch. 2.
Storage Note: If the mower is not clean after one washing, soak it and let it stand for 30 minutes. Then repeat the process. Cleaning and Storage 8. Run the mower again for one to three minutes to remove excess water. 1. Disengage the blade control switch, move the motion controls outward to the park position, stop the engine, and remove the key. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine.
Important: Do not store stabilizer/conditioned gasoline over 30 days. 11. Remove the spark plug(s) and check its condition; refer to Servicing the Spark Plug in the Engine Maintenance section. With the spark plug(s) removed from the engine, pour two tablespoons of engine oil into the spark plug hole. Use the starter to 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). 12. Clean any dirt and chaff from the top of the mower.
Troubleshooting Problem The engine overheats. Possible Cause 1. The engine load is excessive. 1. Reduce ground speed. 2. The oil level in the crankcase is low. 3. The cooling fins and air passages under the engine blower housing are plugged. 4. The air cleaner is dirty. 2. Add oil to the crankcase. 3. Remove the obstruction from the cooling fins and air passages. 5. Dirt, water, or stale fuel is in fuel system.
Problem There is abnormal vibration. Uneven cutting height. Possible Cause 1. The engine mounting bolts are loose. 1. Tighten the engine mounting bolts. 2. The engine pulley, idler pulley, or blade pulley is loose. 3. The engine pulley is damaged. 4. The cutting blade(s) is/are bent or unbalanced. 5. A blade mounting bolt is loose. 6. A blade spindle is bent. 2. Tighten the appropriate pulley. 1. The blade(s) is not sharp. 1. Sharpen the blade(s). 2. A cutting blade(s) is/are bent. 3.
Schematics G009744 Electrical Diagram (Rev.
Notes: 46
Notes: 47
The Toro Total Coverage Guarantee A Three-Year Limited Warranty (Limited Warranty for Commercial Use) Conditions and Products Covered under The Toro Total Coverage Guarantee The Toro® Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to repair any Toro Product used for residential purposes*, if defective in materials or workmanship or if it stops functioning due to the failure of a component for the period listed below.
