Form No. 3364-240 Rev A Z Master® G3 Riding Mower with a 48in or 52in TURBO FORCE® Side Discharge Mower Model No. 74901—Serial No. 310000001 and Up Model No. 74903—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.
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 rotary-blade, riding lawn mower is intended to be used by residential homeowners or professional, hired operators. It is designed primarily for cutting grass on well-maintained lawns on residential or commercial properties. It is not designed for cutting brush or for agricultural uses.
Safety and Instructional Decals ............................. 7 Product Overview ...................................................... 12 Controls ............................................................. 12 Specifications ..................................................... 13 Operation................................................................... 14 Adding Fuel ....................................................... 14 Checking the Engine Oil Level............................
Safety • Use extra care when handling gasoline and other fuels. They are flammable and vapors are explosive. Improper use or maintenance by the operator or owner can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety alert symbol, which means CAUTION, WARNING, or DANGER-“personal safety instruction." Failure to comply with the instruction may result in personal injury or death.
• Be aware there is no rollover protection when the roll bar is down. • 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. • Be aware of the mower discharge direction and do not point it at anyone.
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. 68-8340 1-403005 98-5954 103-2076 54-9220 58-6520 1.
109-7232 109-7929 107-2102 109-9477 107-2112 110-2067 8
110-2068 1. Read the Operator’s Manual. 115-7445 1. Grease pulleys 2. Maintenance interval—50 114-4466 1. Main, 25A 2. PTO, 10A 3. Charge, 25A 4. Auxiliary, 15A 115-2765 1. 2. 3. 4. 5. Fuel Empty Half Full Battery 6. 7. 8. 9. 10.
116-0205 117-0876 1. PTO (Power Take-off) 2. Choke 3. Fast 4. Continuous variable setting 5. Slow 116-0211 117–2718 116-2643 Battery Symbols Some or all of these symbols are on your battery 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. 10 6. Keep bystanders a safe distance from the battery. 7. Wear eye protection; explosive gases can cause blindness and other injuries 8.
Manufacturer’s Mark 1. Indicates the blade is identified as a part from the original machine manufacturer.
Product Overview Use these times for scheduling regular maintenance (Figure 6). Fuel Gauge The fuel gauge is located with the hour meter and the bars light up when the ignition switch is on (Figure 6). The indicator light appears when the fuel level is low (approximately one gallon remaining in the fuel tank). Safety Interlock Indicators There are symbols on the hour meter and the indicate with a black triangle that the interlock component is in the correct position (Figure 6).
switch up to engage the blades and release. To disengage the blades, push the blade control switch (PTO) down or move a motion control lever into the neutral lock position. Length: Ignition Switch 48 inch Deck 52 inch Deck Roll Bar - Up 79.2 inches (201.2 cm) 79.2 inches (201.2 cm) Roll Bar - Down 80.9 inches (205.5 cm) 80.9 inches (205.5 cm) 60 inch Deck 72 inch Deck Roll Bar - Up 83.1 inches (211.1 cm) 86.1 inches (218.7 cm) Roll Bar - Down 84.8 inches (215.4 cm) 87.8 inches (223.
Operation DANGER In certain conditions during fueling, static electricity can be released causing a spark which can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can damage property. • Always place gasoline containers on the ground away from your vehicle before filling.
Breaking In a New Machine Note: A fuel stabilizer/conditioner is most effective when mixed with fresh gasoline. To minimize the chance of varnish deposits in the fuel system, use fuel stabilizer at all times. New engines take time to develop full power. Mower decks and drive systems have higher friction when new, placing additional load on the engine. Allow 40 to 50 hours of break-in time for new machines to develop full power and best performance.
DANGER Operating on wet grass or steep slopes can cause sliding and loss of control. Wheels dropping over edges can cause rollovers, which may result in serious injury, death or drowning. There is no rollover protection when the roll bar is down. Always keep the roll bar in the raised and locked position and use the seat belt. Read and follow the rollover protection instructions and warnings. To avoid loss of control and possibility of rollover: • Do not operate near drop-offs or near water.
CAUTION 1 This machine produces sound levels in excess of 85 dBA at the operators ear and can cause hearing loss through extended periods of exposure. 2 Wear hearing protection when operating this machine. The use of protective equipment for eyes, ears, feet and head is recommended. 1 3 2 G008944 G009027 Figure 12 Figure 10 1. Wear safety glasses 2.
Disengaging the Blade Control Switch (PTO) 1 G009174 Figure 14 Operating the Throttle 2 The throttle control can be moved between Fast and Slow positions (Figure 15). G008959 Always use the fast position when turning on the mower deck with the blade control switch (PTO). Figure 16 1. On 2. Off Operating the Ignition Switch 1. Turn the ignition key to the Start position (Figure 17). When the engines starts, release the key. G008946 Important: Do not engage starter for more than 5 seconds at a time.
Close the fuel shut-off valve for transport, maintenance, and storage. Ensure the fuel shut-off valve is open when starting the engine. Figure 18 1. On 2. Off 3. Hose going to the engine Figure 19 Starting and Stopping the Engine 6. Turn the ignition key to the Start position (Figure 17). When the engines starts, release the key. Starting the Engine Important: Do not engage starter for more than 5 seconds at a time. If the engine fails to start allow a 15 second cool-down period between attempts.
Stopping the Engine The Safety Interlock System CAUTION CAUTION Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended. If safety interlock switches are disconnected or damaged the machine could operate unexpectedly causing personal injury. • Do not tamper with the interlock switches. • Check the operation of the interlock switches daily and replace any damaged switches before operating the machine.
Using the Motion Control Levers 1. Sitting on the seat, engage the parking brake and move the blade control switch (PTO) to on. Try starting the engine; the engine should not crank. 2. Sitting on the seat, engage the parking brake and move the blade control switch (PTO) to off. Move either motion control lever (out of neutral locked position). Try starting the engine; the engine should not crank. Repeat for other control lever. 3.
Stopping the Machine To stop the machine, move the traction control levers to neutral and move to locked position, disengage the power take off (blade control switch (PTO), and turn the ignition key to off. Set the parking brake when you leave the machine; refer to Setting the Parking Brake in Operation. Remember to remove the key from the ignition switch. CAUTION Children or bystanders may be injured if they move or attempt to operate the tractor while it is unattended.
Adjusting the Height-of-Cut Pin The height-of-cut is adjusted from 1 to 5-1/2 inches (25 to 140 mm) in 1/4 inch (6 mm) increments by relocating the clevis pin into different hole locations. 1. Move the transport lock to the lock position. 2. Push on the deck lift pedal with your foot and raise the mower deck to the transport position (also the 5-1/2 inch (140 mm) cutting height position) (Figure 27). 3. To adjust, rotate the pin 90 degrees and remove the pin from the height-of-cut bracket (Figure 27). 4.
Adjusting the Flow Baffle The mower discharge flow can be adjusted for different types of mowing conditions. Position the nut and baffle to give the best quality of cut. 1. Disengage the PTO, move the motion control levers to the neutral locked position and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Figure 28 1. Anti-scalp roller 2. Spacer 3. Bushing 3. To adjust the baffle, loosen the nut (Figure 31). 4.
G012120 Figure 32 Position B G012122 Figure 34 Use this position when bagging. 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. To adjust, move the lever sideways to unlock seat (Figure 35). G012121 Figure 33 Position C G008962 Figure 35 This is the full open position. The suggested use for this position is as follows. • Use in tall, dense grass mowing conditions.
Using the Drive Wheel Release Valves WARNING Hands may become entangled in the rotating drive components below the engine deck, which could result in serious injury. Stop the engine, remove the key, and allow all moving parts to stop before accessing the drive wheel release valves. WARNING The engine and hydraulic drive units can become very hot. Touching a hot engine or hydraulic drive units can cause severe burns. Figure 37 1.
Transporting Machines Loading Machines Use a heavy-duty trailer or truck to transport the machine. Ensure that the trailer or truck has all necessary brakes, 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. Use extreme caution when loading units on trailers or trucks.
Mowing Direction Alternate mowing direction to keep the grass standing straight. This also helps disperse clippings which enhances decomposition and fertilization. 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.
increases the chance of disease. 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.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Change the engine oil. After the first 100 hours • Check the wheel hub slotted nut torque. • Check the torque for wheel lug nuts. • Check the park brake adjustment. Before each use or daily • • • • • • • • Check the safety system. Check the engine oil level. Check the seat belt. Check the rollover protection system (ROPS) knobs. Clean the engine screen and the oil cooler.
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 before you do any maintenance. Lubrication Greasing and Lubrication Grease more frequently when operating conditions are extremely dusty or sandy. Grease Type: No. 2 general purpose lithium base or molybdenum base grease How to Grease 1.
8. Pump grease into the zerk until it oozes out around the top bearing. 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position, and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Grease the mower deck idler pulley pivot until grease come out the bottom (Figure 41). 4.
Engine Maintenance Note: The seals must be replaced. 8. If the axle assembly has had both spacer nuts removed (or broken loose), apply a thread locking adhesive to one spacer nut and thread onto the axle with the wrench flats facing outward. Do Not thread spacer nut all of the way onto the end of the axle. Leave approximately 1/8 inch (3 mm) from the outer surface of the spacer nut to the end of the axle inside the nut. Contact with hot surfaces may cause personal injury. 9.
1. If installing new filters, check each filter for shipping damage. Do not use a damaged filter. 2. Install the precleaner (ensure it is oiled) onto the air filter element (Figure 45). 3. Install the air filter element onto the base (Figure 45). Ensure that it is fully seated. 4. Install the air filter element cover and secure it with the element cover nut (Figure 45). 5. Install the cover and secure it with the cover nut.
Checking the Engine Oil Level Service Interval: Before each use or daily Note: Check the oil when the engine is cold. WARNING G008804 Contact with hot surfaces may cause personal injury. 1 2 3 4 6 7 8 9 Keep hands, feet, face, clothing and other body parts away from the muffler and other hot surfaces. Important: Do not overfill the crankcase with oil because damage to the engine may result. Do not run engine with oil below the low mark because the engine may be damaged. 5 1.
Changing the Engine Oil 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 49). Service Interval: After the first 8 hours Every 100 hours (more often in dirty or dusty conditions) 1 2 3 4 5 6 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. 2.
Servicing the Spark Plug Service Interval: Every 100 hours Make sure the air gap between the center and side electrodes is correct before installing the spark plug. Use a spark plug wrench for removing and installing the spark plug(s) and a gapping tool/feeler gauge to check and adjust the air gap. Install a new spark plug(s) if necessary. G008804 2 1 Type : Champion® RC12YC or equivalent Air Gap: 0.030 inch (0.76 mm) 3 Removing the Spark Plug 4 1.
Checking the Spark Plug 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. If you see light brown or gray on the insulator, the engine is operating properly. A black coating on the insulator usually means the air cleaner is dirty. Set the gap to 0.030 inches (0.76 mm). 1 2 G008794 Figure 53 Installing the Spark Plug Tighten the spark plug(s) to 18-22 ft.-lb (24.4–29.8 N-m). Figure 51 1.
Check Spark Arrester (if equipped) Fuel System Maintenance Service Interval: Every 50 hours Replacing the Fuel Filter WARNING Service Interval: Every 500 hours/Yearly (whichever comes first) (more often in dirty or dusty conditions). Hot exhaust system components may ignite gasoline vapors even after the engine is stopped. Hot particles exhausted during engine operation may ignite flammable materials. Fire may result in personal injury or property damage.
Electrical System Maintenance installed at the factory to keep the fuel line away from components that could cause fuel line damage. Servicing the Fuel Tank Servicing the Battery Do not attempt to drain the fuel tank. Ensure that an Authorized Service Dealer drains the fuel tank and services any components of the fuel system.
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. G008804 • Always Disconnect the negative (black) battery cable before disconnecting the positive (red) cable. 1 2 3 4 - + 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. - 1.
Servicing the Fuses 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). The electrical system is protected by fuses. It requires no maintenance, however, if a fuse blows check the component/circuit for a malfunction or short. 1. Charge battery for 10 to 15 minutes at 25 to 30 amps or 30 minutes at 10 amps. 1. The fuses are located on right hand console next to the seat (Figure 58). 2.
Drive System Maintenance Checking the Seat Belt Service Interval: Before each use or daily Visually inspect seat belt for wear, cuts, and proper operation of retractor and buckle. Replace before operating if damaged. Checking the Rollover Protection System (ROPS) Knobs Service Interval: Before each use or daily Check that both the mounting hardware and the knobs are in good working condition. Make sure the knobs are fully engaged with the ROPS in the raised position.
Checking the Wheel Hub Slotted Nut Service Interval: After the first 100 hours Every 500 hours See Figure 62 to determine which slotted nut has been installed on the unit. Figure 62 1. Style A (black finish) 2. .03 inch (.76 mm) 3. Style B (yellow zinc) 4. .24 inch (6 mm) • Style A (black finish): Torque the slotted nut to 211-260 ft-lb (286-352 N-m). Figure 60 Left control lever shown 1. Control lever 2. Bolt Note: Do Not use anti-seize on wheel hub. • Style B (yellow zinc): 3. Stop plate 1.
nut to align the slot. If required, tighten to the next set of slots. 7. Install a new cotter pin. engages consistently, the shim can be removed to extend the clutch life. Note: Do Not use anti-seize on wheel hub. Adjusting the Caster Pivot Bearing Service Interval: Every 500 hours/Yearly (whichever comes first) 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake. 2.
Note: Do Not remove the brake pole from the field shell/armature. The brake pole has worn to match the armature and needs to continue to match after the shim is removed to ensure proper brake torque. Figure 69 1. Feeler gauge Figure 67 1. Brake mounting bolt B. Using needle nose pliers, or by hand, take hold of the tab and remove the shim (Do Not discard the shim until proper clutch function has been confirmed). Figure 70 1. Feeler gauge • If the gap is less than 0.
Cooling System Maintenance Cleaning the Engine Screen and Engine Oil Cooler Service Interval: Before each use or daily Remove any build-up of grass, dirt or other debris from the oil cooler (Figure 71). G008804 Figure 72 1. Engine guard 2. Engine air intake screen 3. Bolt 4. Fan housing 5. Screw Figure 71 Check and Clean the Hydraulic Unit Shrouds Before each use remove any build-up of grass, dirt or other debris from the engine screen.
Brake Maintenance Adjusting the Parking Brake Service Interval: After the first 100 hours Every 500 hours DANGER Mechanical or hydraulic jacks may fail to support machine and cause a serious injury. • Use jack stand when supporting machine. • Do not use hydraulic jacks. Check to make sure the brake is adjusted properly. 1. Drive the machine onto a level surface. 2. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake. 3.
15. Close the drive wheel release valve. Refer to Using the Drive Wheel Valves in Operation. Belt Maintenance 16. Repeat on the opposite side of the machine. Inspecting the Belts 17. Install the rear tires and torque the lug nuts to 90-95 ft-lb (122-129 N-m). Service Interval: Every 50 hours 18. Remove jack stands. Check the belts for 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.
Figure 77 1. Position the belt cover 3. Ensure the tab is under the metal catch 2. Slide belt cover under the side catches Replacing the Hydraulic Pump Drive Belt Figure 76 1. Clutch pulley 2. Mower belt 3. Spring loaded idler pulley 4. Ratchet 5. Square hole in the idler arm for the ratchet 6. Idler grease zerk 7. Belt guide 1. Disengage the PTO and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 10.
Controls System Maintenance Adjusting the Control Handle Position There are two height positions for the control levers; high and low. Remove the bolts to adjust the height for the operator. 1. Disengage the PTO, move the motion control levers to the neutral locked position, and set the parking brake. 2. Stop the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Figure 78 1. Idler pulley 2. Clutch pulley 3. Pump drive belt 4.
not have to be in the seat because of the jumper wire being used. Run engine at full throttle and release brake. 6. Run the unit at least 5 minutes with the drive levers at full forward speed to bring hydraulic oil up to operating temperature. Note: The motion control lever needs to be in neutral while making any necessary adjustments. 7. Bring the motion control levers into the neutral position.
Adjusting the Motion Control Damper The top damper mounting bolt can be adjusted to obtain a more desired motion control lever resistance. See Figure 82 for mounting options. Figure 83 1. Flanged nut Figure 82 RH Motion Control Shown 1. Torque the lock nut to 200 in-lb (16.7 ft-lb). Bolt must protrude past end of locknut after torque. 2. Least resistance (softest feel) 3. Damper 4. Medium resistance (medium feel) 5.
Hydraulic System Maintenance Servicing the Hydraulic System Hydraulic Oil Type: Toro® HYPR-OIL™ 500 hydraulic oil or Mobil® 1 15W-50. Important: Use oil specified. Other fluids could cause system damage. Each Hydraulic System Oil Capacity: 52 ounces (1.5 l) per side with filter change Checking the Hydraulic Oil Service Interval: Every 50 hours—Check the hydraulic oil level. 1. Position the machine on a level surface. 2.
Replacing the Hydraulic Filters and Hydraulic Oil 1 Service Interval: Every 250 hours—Change the hydraulic filters and hydraulic oil when using Mobil® 1 oil. Every 500 hours—Change the hydraulic filters and hydraulic oil when using Toro® HYPR-OIL™ 500 hydraulic oil. To replace the hydraulic oil, the filters need to be removed. Replace both at the same time. Refer to the oil specifications under Servicing the Hydraulic System for the correct oil. 2 1.
Mower Deck Maintenance 6. Insert the height adjustment pin into the 3 inch (7.6 cm) cutting height location. 7. Release the transport lock and allow the deck to lower to the cutting height. 8. Raise the discharge chute. 9. On both sides of the deck, measure from the level surface to the front tip of the blade (Postion A). The measurement should read 3 inches (7.6 mm) (Figure 88). Leveling the Mower Deck Setting Up the Machine Note: Ensure the mower deck is leveled before matching the height-of-cut (HOC).
11. If the front deck links do not have enough adjustment to achieve accurate cut height , the single point adjustment can be utilized to gain more adjustment. 12. To adjust the single point system, loosen the two bolts at the bottom of the height of cut plate. Refer to Figure 90. Figure 91 1. Single point adjustment bolt 14. Tighten the two bolts at the bottom of the height of cut plate (Figure 90). Torque to 27-33 ft-lb (37-45 N-m).
Servicing the Cutting Blades Checking for Bent 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. 1. Disengage the blade control switch (PTO), move the motion control levers to the neutral locked position and set the parking brake. 2.
performance and continued safety conformance of the machine, use genuine Toro replacement blades. Replacement blades made by other manufacturers may result in non-conformance with safety standards. 1. Hold the blade end using a rag or thickly-padded glove. Figure 95 2. Remove the blade bolt, curved washer, and blade from the spindle shaft (Figure 94). 1. Sharpen at original angle 2. Check the balance of the blade by putting it on a blade balancer (Figure 96).
Installing the Blades Removing the Mower Deck 1. Install the blade onto the spindle shaft (Figure 97). Before servicing or removing the mower deck, the spring loaded deck arms must be locked out. Important: The curved part of the blade must be pointing upward toward the inside of the mower to ensure proper cutting. WARNING Deck lift arm assemblies have stored energy. Removing the deck with out releasing the stored energy can cause serious injury or death. 2. Install the spring disk and blade bolt.
Replacing the Grass Deflector WARNING 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. Also, contact with the blade could occur. • Never operate the lawn mower unless you install a cover plate, a mulch plate, or a grass chute and catcher. • Make sure the grass deflector is in the down position. 1. Remove the locknut, bolt, spring and spacer holding the deflector to the pivot brackets (Figure 100).
Cleaning Storage Cleaning Under the Mower Cleaning and Storage 1. Disengage the power take off (blade control switch (PTO), set the parking brake, and turn the ignition key to Off. Remove the key. 2. Remove grass clippings, dirt, and grime from the external parts of the entire machine, especially the engine and hydraulic system. Clean dirt and chaff from the outside of the engine cylinder head fins and blower housing. Service Interval: Before each use or daily 1.
B. Run the engine to distribute conditioned fuel through the fuel system (5 minutes). C. Stop the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank in the Maintenance Section. D. Restart the engine and run it until it stops. E. Dispose of fuel properly. Recycle as per local codes. Important: Do not store stabilizer/conditioned fuel over 90 days. 13. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged. 14.
Troubleshooting Problem Starter does not crank Engine will not start, starts hard, or fails to keep running Possible Cause 1. Blade control switch (PTO) is engaged. 1. Move blade control switch (PTO) to disengaged. 2. Parking brake is not on. 3. Drive levers are not in neutral lock position. 4. Operator is not seated. 5. Battery is dead. 6. Electrical connections are corroded or loose. 7. Fuse is blown. 8. Relay or switch is defective. 2. Set the parking brake. 3.
Problem Machine does not drive. Abnormal vibration. Uneven cutting height. Possible Cause 1. By pass valves is not closed tight. 1. Tighten the by pass valves. 2. 3. 4. 5. 2. 3. 4. 5. Pump belt is worn, loose or broken. Pump belt is off a pulley. Broken or missing idler spring. Hydraulic oil level is low or too hot. 1. Install new cutting blade(s). 2. Blade mounting bolt is loose. 3. Engine mounting bolts are loose. 4. Loose engine pulley, idler pulley, or blade pulley. 5. Engine pulley is damaged.
Schematics Wire Diagram (Rev.
Notes: 67
The Toro Total Coverage Warranty A Limited Warranty (see warranty periods below) Conditions and Products Covered 3. The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly promise to the original purchaser to repair the Toro Products listed below if defective in materials or workmanship.
