Form No. 3436-617 Rev A Z Master® 8000 Series Riding Mower With 42in or 48in Cutting Unit Model No. 74312—Serial No. 405700000 and Up Model No. 74313—Serial No. 405700000 and Up Model No. 74315—Serial No. 405700000 and Up Register at www.Toro.com.
Introduction It is a violation of California Public Resource Code Section 4442 or 4443 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order or the engine is constructed, equipped, and maintained for the prevention of fire. This rotary-blade, riding lawn mower is intended to be used by professional, hired operators.
Contents Fuel System Maintenance ................................... 42 Servicing the Electronic Fuel-Injection System.......................................................... 42 Replacing the Fuel Filter ................................... 42 Servicing the Fuel Tank..................................... 43 Electrical System Maintenance ........................... 43 Electrical System Safety ................................... 43 Servicing the Battery.........................................
General Safety Safety This machine is capable of amputating hands and feet and of throwing objects. Toro designed and tested this lawn mower to offer reasonably safe service; however, failure to comply with safety instructions may result in injury or death. This machine has been designed in accordance with ANSI standard B71.4-2017.
Slope Indicator g011841 Figure 3 You may copy this page for personal use. 1. The maximum slope you can 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.
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 missing. decal93-7818 93-7818 decalbatterysymbols 1. Warning—read the Operator's Manual for instructions on torquing the blade bolt/nut to 115 to 149 N∙m (85 to 110 ft-lb). Battery Symbols Some or all of these symbols are on your battery. 1. Explosion hazard 6. Keep bystanders away from the battery. 2.
decal112-9028 112-9028 1. Warning—stay away from moving parts; keep all guards and shields in place. decal116-8934 116-8934 1. Warning—disengage the blade clutch, shut off the engine, and remove the key before making adjustments, servicing, or cleaning the deck. decal115-4212 115-4212 3. Warning—do not touch the hot surface. 1. Hydraulic fluid level 2. Height of cut 2. Read the Operator's Manual. decal116-8935 116-8935 2 1 1.
decal116-8946 116-8946 1. Rotate counterclockwise to release. 2. Rotate clockwise to lock. decal116-8941 116-8941 1. 1. PTO belt routing 2. 2. Pump-drive belt routing 3. Unlock to push the machine. 4. Read the Operator’s Manual before servicing or performing maintenance. decal116-9049 116-9049 1. Rotating driveline hazard—keep all driveline shields in place. Securely attach both ends of the driveline. decal116-8943 116-8943 1.
Non-EFI Machines Only decal120-0625 120-0625 1. Pinch point, hand—keep hands away. decal126-4207 126-4207 1. Refer to the Operator’s Manual for adjustment procedure. When PTO is engaged, the idler arm position must be in hatched area or an adjustment is required. decal130-2880 130-2880 1. Engine temperature 7. Retract the piston 2. Fast 8. Extend the piston 3. 4. 5. 6. 9 Slow Neutral Neutral Reverse 9. 10. 11. 12.
EFI Machines Only decal130-2881 130-2881 1. Engine temperature 6. Reverse 2. Fast 7. Retract the piston 3. Slow 8. Extend the piston 4. Neutral 5. Neutral 9. Fast 10. Slow decal126-4159 Molded in Left Console 1. PTO—disengage 3. Park brake—release 2. PTO—engage 4.
decal126-4158 Molded into Front of Hopper Note: This machine complies with the industry standard stability test in the static lateral and longitudinal tests with the maximum recommended slope indicated on the decal. Review the instructions for operating the machine on slopes in the Operator’s Manual and review the conditions in which you will use the machine to determine whether you can operate the machine in the conditions on that day and at that site.
decal116-9044 116-9044 1. Read the Operator’s Manual before performing any maintenance. 2. Check the engine oil every 8 hours. 8. Grease the deck lock mechanism every 100 hours. 9. Grease the deck pivots every 100 hours. 3. Grease the front caster wheel bearings every 8 hours. 10. Check the gearbox oil every 100 hours (use only Mobil 1 75W-90 gear oil). 4. Check the hydraulic fluid level every 40 hours (only use recommended hydraulic fluid). 11. Grease the front caster pivots every 500 hours. 5.
Key Switch Product Overview The key switch, used to start and shut off the engine, has 3 positions: OFF, RUN, and START . Refer to Starting the Engine (page 24). Throttle Control The throttle controls the engine speed, and it has a continuous-variable setting from the SLOW to FAST position (Figure 5). Choke Control Non-EFI Machines Only Use the choke control to start a cold engine. PTO-Engagement Lever g026780 Figure 4 Use the PTO-engagement lever to engage the blades and the blower. 4.
Electronic-Control Unit Malfunction-Indicator Light EFI Machines Only The electronic-control unit (ECU) continuously monitors the operation of the EFI system. If a problem or fault within the system is detected, the malfunction-indicator light (MIL) illuminates. The MIL is the red light located in the right console panel. Once the MIL illuminates, make initial troubleshooting checks; refer to the MIL section under Troubleshooting (page 63). g020563 Figure 6 1.
Specifications Operation Note: Specifications and design are subject to Note: Determine the left and right sides of the machine from the normal operating position. change without notice. Width 42-inch Mower Deck 48-inch Mower Deck Without Mower Deck 108.2 cm (42.6 inches) 108.2 cm (42.6 inches) With Mower Deck 109.7 cm (43.2 inches) 125.0 cm (49.
Fuel Safety DANGER In certain conditions during fueling, static electricity can be released causing a spark which can ignite gasoline vapors. A fire or explosion from gasoline can burn you and others and cause property damage. • Always place gasoline containers on the ground away from your vehicle before filling.
Adding Fuel Note: Do not fill the fuel tank completely full. The empty space in the tank allows the fuel to expand. Recommended Fuel • For best results, use only clean, fresh (less than 30 days old), unleaded gasoline with an octane rating of 87 or higher ((R+M)/2 rating method). • Ethanol: Gasoline with up to 10% ethanol (gasohol) or 15% MTBE (methyl tertiary butyl ether) by volume is acceptable. Ethanol and MTBE are not the same. Gasoline with 15% ethanol (E15) by volume is not approved for use.
Raising the Mower Deck into the Service Position 1. Park the machine on a level surface, disengage the PTO, and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Release the mower deck locking pins on each side (Figure 8). g025155 Figure 9 1. Secure the mower deck in the raised position by securing the mower deck latch onto the hook. 2. Hook 3.
Adjusting the Fill Reduction System (FRS) Baffles The fill reduction system has been designed to allow you to reduce the amount of clippings collected by varying degrees. The advantages include less frequent emptying of the hopper and the return of nutrients to the soil. The following are possible configurations: • Baffles open with standard blades—maximum collection g025242 • Baffles closed with standard blades—partial Figure 11 mulching 1.
10. Slightly tighten the locknuts on the rear studs of the FRS baffles. Note: The locknuts on the rear studs may be left slightly loose if you anticipate adjusting the baffle frequently. 11. Install the PTO guard using the clevis pins and hairpin cotters removed in step 3. Using the Safety-Interlock System g020563 Figure 13 WARNING If the safety-interlock switches are disconnected or damaged, the machine could operate unexpectedly, causing personal injury. • Do not tamper with the interlock switches.
• The owner/user can prevent and is responsible Move the speed-control lever forward; the engine should shut off. for accidents or injuries occurring to himself or herself, other people or property. Unlatching the Seat • This mower was designed for one operator only. Do not carry passengers and keep all others away from machine during operation. To unlatch the seat, remove the bolt and the pin on the left side of the seat (Figure 14).
Slope Safety • Never raise the deck with blades running. • Be aware of the mower discharge path and direct • Slopes are a major factor related to loss of control discharge away from others. Avoid discharging material against a wall or obstruction as the material may ricochet back toward the operator. Stop the blades, slow down, and use caution when crossing surfaces other than grass and when transporting the mower to and from the area to be mowed. • Be alert, slow down and use caution when making turns.
Disengaging the Parking Brake • Avoid starting, stopping or turning the machine on slopes. Avoid making sudden changes in speed or direction; turn slowly and gradually. • Do Not operate a machine under any conditions where traction, steering or stability is in question. Be aware that operating the machine on wet grass, across slopes or downhill may cause the machine to lose traction. Loss of traction to the drive wheels may result in sliding and a loss of braking and steering.
Operating the PTO-Engagement Lever Operating the Throttle You can move the throttle control between FAST and SLOW positions (Figure 20). The PTO-engagement lever starts and stops the mower blades and blower. Always use the FAST position when engaging the PTO. Engaging the PTO-Engagement Lever g232776 Figure 20 Starting the Engine 1. Move the speed-control lever to the NEUTRAL position. 2. Engage the parking brake; refer to Engaging the Parking Brake (page 23). 3.
Shutting Off the Engine CAUTION Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended. Always remove the key and engage the parking brake when leaving the machine unattended. 1. Disengage the PTO. 2. Move the speed-control lever to the NEUTRAL position. 3. Engage the parking brake. 4. Place the throttle in the middle position. 5. Let the engine idle for 15 seconds, then turn the key switch to the OFF position and remove the key.
Driving the Machine Adjusting the Height of Cut 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 when mowing. The cutting height of the mower deck is adjusted from 2.5 to 10.2 cm (1 to 4 inches) in 6.3 mm (1/4 inch) increments. 1.
Emptying the Hopper Mowing at Correct Intervals A full hopper is indicated by a buzzer located behind the seat, in the hopper. Empty the hopper when the buzzer sounds to prevent clogging of the blower or the mower deck. Grass grows at different rates at different times of the year. To maintain the same cutting height, mow more often in early spring. As the grass growth rate slows in mid summer, mow less frequently.
Using the Drive-Wheel Release Valves After Operation After Operation Safety WARNING Hands may become entangled in the rotating drive components below the engine deck, which could result in serious injury. General Safety • Park machine on level ground, disengage drives, set parking brake, stop engine, remove key or disconnect spark plug wire. Wait for all movement to stop and allow the machine to cool before adjusting, cleaning, repairing, or storing. Never allow untrained personnel to service machine.
Transporting the Machine Use a heavy-duty trailer or truck to transport the machine. Use a full-width ramp. Ensure that the trailer or truck has all the necessary brakes, lighting, and marking as required by law. Please carefully read all the safety instructions. Knowing this information could help you or bystanders avoid injury. Refer to your local ordinances for trailer and tie-down requirements.
Loading the Machine WARNING Loading a machine onto a trailer or truck increases the possibility of tip-over and could cause serious injury or death. • Use extreme caution when operating a machine on a ramp. • Back the machine up the ramp and drive it forward down the ramp. • Avoid sudden acceleration or deceleration while driving the machine on a ramp as this could cause a loss of control or a tip-over situation. 1. If using a trailer, connect it to the towing vehicle and connect the safety chains. 2.
Maintenance WARNING Removal or modification of original equipment, parts and/or accessories may alter the warranty, controllability, and safety of the machine. Unauthorized modifications to the original equipment or failure to use original Toro parts could lead to serious injury or death. Unauthorized changes to the machine, engine, fuel or venting system, may violate applicable safety standards such as: ANSI, OSHA and NFPA and/or government regulations such as EPA and CARB.
• Keep hands and feet away from moving parts. • Use jack stands to support the machine and/or If possible, Do Not make adjustments with the engine running. If the maintenance or adjustment procedure require the engine to be running and components moving, use extreme caution. components when required. CAUTION Raising the machine for service or maintenance relying solely on mechanical or hydraulic jacks could be dangerous.
Maintenance Service Interval Maintenance Procedure Every 250 hours • Replace the primary air filter (more often in dirty or dusty conditions). • Check the safety air filter (more often in dirty or dusty conditions). • Change the hydraulic filter and reservoir hydraulic fluid when using Mobil® 1 fluid (more often in dirty or dusty conditions). Every 400 hours • Grease the caster pivots (more often in dirty or dusty conditions).
g020366 Figure 27 1. Rear caster pivot g034248 Figure 28 6. Front caster wheel hub 2. PTO-belt idler arm 7. Deck flip-up pivot 3. Pump-belt idler arm 8. Push-arm tubes 4. Rear caster hub 9. Front caster pivots 3. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 4. Loosen the bolt holding the air cleaner (Figure 29). 5. Loosen the clamp holding the hose and remove the air cleaner (Figure 29). 5.
Lubricating the Brake-Rod Bushings and Steering-Linkage Rod Ends Service Interval: Every 160 hours g034251 Figure 30 1. Plate 2. Bolts 7. Lubricate the pump-belt idler arm (Figure 30). 8. Install the plate and the air cleaner. Park the machine on a level surface, disengage the PTO, and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. Unlatch the seat latch and tilt the seat up. 4.
6. Pump grease into the fitting until it oozes out around the top bearing. 7. Remove the grease fitting from the hole. Install the hex plug and cap. Greasing the Caster-Wheel Hubs Service Interval: Before each use or daily—Grease the front caster wheel hubs (more often in dirty or dusty conditions). g007579 Figure 32 1. Small magnetic plugs (front and back) 3. Small magnetic plug (front only) Yearly—Grease the rear caster wheel hubs (more often in dirty or dusty conditions). 2.
nut and thread it onto the axle with the wrench flats facing outward. Engine Maintenance Note: Do not thread the spacer nut all of the way onto the end of the axle. Leave approximately 3 mm (1/8 inch) from the outer surface of the spacer nut to the end of the axle inside the nut. Engine Safety 12. Insert the assembled nut and axle into the wheel on the side with the new seal and bearing. 13.
4. Clean the inside of the air-cleaner cover with compressed air. 5. Gently slide the primary filter out of the air-cleaner body (Figure 34). Servicing the Engine Oil Service Interval: Before each use or daily Every 100 hours (more often in dirty or dusty conditions). Every 200 hours—Change the engine-oil filter (more often in dirty or dusty conditions). Note: Avoid knocking the filter into the side of the body. 6. Remove the safety filter only to replace it.
4. Changing the Engine Oil To keep dirt, grass clippings, etc., out of the engine, clean the area around the oil-fill cap and dipstick before removing it (Figure 36). Note: Dispose of the used oil at a recycling center. 1. Park the machine so that the rear is slightly lower than the front to ensure that the oil drains completely. 2. Move the speed-control lever to the NEUTRAL position to stop the machine.
Changing the Engine-Oil Filter Servicing the Spark Plug(s) 1. Drain the oil from the engine; refer to Changing the Engine Oil (page 39). 2. Change the engine-oil filter (Figure 38). Service Interval: Every 200 hours—Check the spark plug(s). Every 500 hours—Replace the spark plug(s). Type for EFI engines: Champion® XC12YC or equivalent Type for Non-EFI engines: Champion® RC12YC or equivalent Air Gap: 0.76 mm (0.
Checking the Spark Plug(s) Important: Do not 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. g009922 Set the gap to 0.76 mm (0.03 inch). g206628 Figure 41 Installing the Spark Plug(s) g009919 1. Install the spark plug(s) as shown in Figure 42. 2.
Checking the Spark Arrester Fuel System Maintenance For Machines with a Spark Arrester DANGER In certain conditions, fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property. Service Interval: Every 50 hours WARNING Hot exhaust-system components may ignite fuel vapors even after you shut off the engine. Hot particles exhausted during engine operation may ignite flammable materials, resulting in personal injury or property damage.
2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Allow the machine to cool down. 4. Clamp the hose on the fuel tank side of the fuel filter. 5. Replace the fuel filter (Figure 43). Electrical System Maintenance Electrical System Safety • Disconnect the battery before repairing the Note: Ensure that the markings on the filter follow the fuel flow direction. machine. Disconnect the negative terminal first and the positive last.
4. Slide the red terminal boot off the positive (red) battery terminal and remove the positive (+) battery cable (Figure 44). 5. Remove the wing nuts securing the J-hooks (Figure 44). 6. Remove the clamp (Figure 44). 7. Remove the battery. Note: Do not run the machine with the battery disconnected; electrical damage may occur. g000960 Figure 45 1. Positive (+) battery post 3. Red (+) charger lead 2. Negative (–) battery post 4. Black (–) charger lead g025144 Figure 44 1.
Adjusting the Safety Switches systems. Make sure that the cables are color coded or labeled for the correct polarity. CAUTION Adjust all safety switches so that the plunger extends 4.8 mm to 6.4 mm (3/16 inch to 1/4 inch) from the switch body when the plunger is compressed (Figure 46). Connecting the jumper cables incorrectly (wrong polarity) can immediately damage the EFI system. Be certain of battery-terminal polarity and jumper-cable polarity when hooking up the batteries.
5. Connect the black negative (–) cable to the other terminal (negative) of the booster battery. 6. Make the final connection on the engine block of the stalled machine (not to the negative battery post), away from the battery, and stand back (Figure 48). Drive System Maintenance Adjusting the Tracking Note: The tracking knob is located under the seat. Note: Rotating this knob allows fine tuning adjustments so that the machine tracks straight with the drive levers in the full forward position. 1.
Checking the Tire Pressure 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Remove the dust cap from the caster and tighten the locknut until the spring washers are flat, then back off 1/4 turn to properly set the pre-load on the bearings (Figure 51 and Figure 52). Service Interval: Every 40 hours Maintain the air pressure in the rear tires at 103 kPa (15 psi). Uneven tire pressure can cause uneven cut.
Cleaning the Engine Cooling Fins and Shrouds Cooling System Maintenance Service Interval: Every 100 hours/Yearly (whichever comes first) Cooling System Safety • Swallowing engine coolant can cause poisoning; 1. Park the machine on a level surface, move the speed-control lever to the NEUTRAL position, disengage the PTO, and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3.
Brake Maintenance Adjusting the Parking Brake Service Interval: After the first 100 hours Every 500 hours thereafter Make sure that the brake is adjusted properly. Follow this procedure when you remove or replace a brake component. 1. Park the machine on a level surface, move the speed-control lever to the NEUTRAL position, disengage the PTO, and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3.
Belt Maintenance Inspecting the Belts Service Interval: Every 40 hours Replace the belt if it is worn. The signs of a worn belt include squealing while the belt is rotating; the blades slipping while cutting grass; and frayed edges, burn marks, and cracks on the belt. 1. Park the machine on a level surface, move the speed-control lever to the NEUTRAL position, disengage the PTO, and engage the parking brake. 2.
14. Engage the PTO lever and check the alignment. 15. Check and adjust the belt guides as stated in Adjusting the Belt Guides (page 52). Replacing the Pump-Drive Belt 1. Park the machine on a level surface, move the speed-control lever to the NEUTRAL position, disengage the PTO, and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. Remove the PTO Belts; refer to Replacing the PTO Belts (page 50).
Adjusting the Belt Guides Controls System Maintenance 1. Park the machine on a level surface, move the speed-control lever to the NEUTRAL position, disengage the PTO, and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3. With the engine off, engage the PTO lever. Align the PTO-drive pulley for any of the following conditions: 4. Adjust the belt guides as shown in Figure 59.
Aligning the Pump-Drive Pulley The pump-drive-pulley alignment is necessary for any of the following conditions: • The engine mounting bolts have been loosened or the engine has been moved or replaced. • The pump pulleys have been loosened, moved, or replaced. • The PTO pulley has been aligned; refer to Aligning the PTO-Drive Pulley (page 52). g006846 Figure 60 1. Align the 3 pump-drive pulley surfaces shown with this pattern within 0.8 to 1.6 mm (1/32 inch to 1/16 inch). 9. 2.
Adjusting the Hopper Door Adjusting the PTO Brake Spring Adjust the PTO brake spring only if the blower has been removed or replaced or if the PTO drive idler arm has been disassembled. 1. Park the machine on a level surface, move the speed-control lever to the NEUTRAL position, disengage the blade-control switch (PTO), and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3.
Hydraulic System Maintenance 8. Remove the dipstick and look at the end (Figure 63). If the fluid level is at the add mark, slowly pour only enough fluid into the hydraulic reservoir to raise the level to the full line. Important: Do not overfill the hydraulic Hydraulic System Safety units with fluid, as damage may occur. Do not run the machine with the fluid below the add mark. • Seek immediate medical attention if fluid is injected into skin.
5. 6. 7. Important: Do not change the hydraulic system fluid (except for what can be drained when changing the filter), unless the fluid has been contaminated or been extremely hot. Changing the hydraulic fluid unnecessarily could damage the hydraulic system by introducing contaminates into the system. Mower Deck Maintenance Before installing the new filter, fill it with Toro® HYPR-OIL™ 500 hydraulic fluid and apply a thin coat of fluid on the surface of the rubber seal.
Removing the Blades Replace the blades if they hit a solid object, or if the blade is out of balance or bent. Note: Make note of the red-colored blade position. From the normal user position, it is located on the right side. 1. Lift the mower deck and secure in the raised position. Refer to Raising the Mower Deck into the Service Position (page 18). 2. Hold the blade end using a rag or thickly padded glove. 3.
2. Leveling the Mower Deck Check the balance of the blade by putting it on a blade balancer (Figure 68). Note: If the blade stays in a horizontal position, 1. Park the machine on a level surface, move the speed-control lever to the NEUTRAL position, disengage the blade-control switch (PTO), and engage the parking brake. 2. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 3.
Removing the Mower Deck WARNING Operating this machine without an approved Toro front mount attachment increases the possibility of operator entanglement in the drive wheels or forward tip-over. Entanglement or tip-over could cause serious injury or death. When operating this machine without an approved Toro front mount attachment, observe the following: • Keep feet and clothing away from tires. g006788 Figure 70 • Limit operation to minimum required to install a different front mount attachment. 1.
g006785 Figure 73 g233982 1. Jackshaft Figure 71 1. Push arm 2. Lynch pin 10. 3. Push-arm tube 8. 2. Drive shaft Pull the mower deck forward to remove it from the machine. Installing the Mower Deck Loosen the bolts attached to the rubber guard (Figure 72). Important: Do not transport the machine without an approved Toro front mount attachment. 1.
10. Install the springs onto the spring anchor pins under the left and right consoles and secure it with a washer and hairpin cotter (Figure 70). Cleaning 11. Unlatch the mower deck from the raised position, slowly lower the mower deck to ground, and lock the deck-locking pins on each side. Refer to Lowering the Mower Deck to the Operating Position (page 18). Cleaning under the Mower Deck Service Interval: Before each use or daily Adjusting the Locking-Pin Stop on the Mower Deck 1.
Storage 12. Check the condition of the blades; refer to Servicing the Cutting Blades (page 56). Storage Safety 13. Prepare the machine for storage when non-use occurs over 30 days. Prepare the machine for storage as follows: • Shut off the engine, remove the key, and wait for all moving parts to stop before you leave the operator’s position. Allow the machine to cool before adjusting, servicing, cleaning, or storing it. A.
Troubleshooting Problem The malfunction-indicator light (MIL) comes on. Possible Cause 1. The engine is too hot. 1. Shut off the engine and let it cool. 2. There is old fuel in the fuel tank. 3. The fuel-shutoff valve is not open completely. 4. The air cleaner is dirty. 2. Use new fuel. 3. Open the fuel-shutoff valve. 5. The battery is not charged. 6. Incorrect fuel filters are being used or the fuel filters are dirty. 7.
Problem The engine loses power. The engine overheats. Possible Cause 1. The engine load is excessive. 1. Reduce the ground speed. 2. The air cleaner is dirty. 3. The oil level in the crankcase is low. 4. The cooling fins and the air passages above the engine are plugged. 5. The vent hole in the fuel cap is plugged. 6. There is dirt in the fuel filter. 7. There is dirt, water, or stale fuel in the fuel system. 2. Clean the air-cleaner element. 3. Add oil to the crankcase. 4.
Schematics g020385 Wire Diagram (Non-EFI machines) (Rev.
g020386 Wire Diagram (EFI machines) (Rev.
g020536 Hydraulic Diagram (Rev.
California Proposition 65 Warning Information What is this warning? You may see a product for sale that has a warning label like the following: WARNING: Cancer and Reproductive Harm—www.p65Warnings.ca.gov. What is Prop 65? Prop 65 applies to any company operating in California, selling products in California, or manufacturing products that may be sold in or brought into California.
