Form No. 3323–196 Compact Series Z147 with 44I SFS Side Discharge Mower Model No.
Introduction Thank you for purchasing a Toro product. All of us at Toro want you to be completely satisfied with your new product, so feel free to contact your local Authorized Service Dealer for help with service, genuine replacement parts, or other information you may require. Whenever you contact your Authorized Service Dealer or the factory, always know the model and serial numbers of your product.
Contents Page Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Safe Operation Practices for Ride-on (riding) Rotary Lawnmower Machines . . . . . . . . 3 Safe Operating Practices . . . . . . . . . . . . . . 3 Sound Pressure Level . . . . . . . . . . . . . . . . . 5 Sound Power Level . . . . . . . . . . . . . . . . . . 5 Vibration Level . . . . . . . . . . . . . . . . . . . . . 5 Slope Chart . . . . . . . . . . . . . . . . . . . . . . . . . 7 Symbols Glossary . . . . . . . . . . . .
Contents Replacing the Grass Deflector . . . . . . . . . . Adjusting Motion Controls . . . . . . . . . . . . Adjustment Parking Brake . . . . . . . . . . . . . Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . Waste Disposal . . . . . . . . . . . . . . . . . . . . . . Wiring Diagram . . . . . . . . . . . . . . . . . . . . . Cleaning and Storage . . . . . . . . . . . . . . . . . Troubleshooting . . . . . . . . . . . . . . . . . .
Safety Safe Operation Practices for Ride-on (riding) Rotary Lawnmower Machines • This machine meets or exceeds European Standards in effect at the time of production. However, 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.
Safety • • • Add fuel before starting the engine. Never remove the cap of the fuel tank or add petrol while the engine is running or when the engine is hot. If petrol is spilled, do not attempt to start the engine but move the machine away from the area of spillage and avoid creating any source of ignition until petrol vapors have dissipated. Replace all fuel tanks and container caps securely.
Safety • • stop the engine and remove the key. Disengage drive to attachments, stop the engine, and disconnect the spark plug wire(s) or remove the ignition key • before clearing blockages or unclogging chute; To reduce the fire hazard, keep the engine, silencer, battery compartment and petrol storage area free of grass, leaves, or excessive grease. • Check the grass catcher frequently for wear or deterioration. • Replace worn or damaged parts for safety.
Safety 6
Safety Slope Chart Read all safety instructions on pages 3–11.
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Safety Symbols Glossary Safety alert triangle– symbol within triangle indicates a hazard Fire, open light & smoking prohibited Safety alert symbol Fire or open flame Explosion Read operator’s manual Keep children away from battery Consult technical manual for proper service procedures Do not dispose of lead battery in garbage Shut off engine & remove key before preforming maintenance or repair work Stay a safe distance from the machine Caustic liquids, chemical burns to fingers or hand Stay a safe dist
Safety Symbols Glossary Do not open or remove safety shields while engine is running Dismemberment in Rearward Motion Do not carry passengers Thrown or flying objects, whole body exposure Dismemberment in forward motion Thrown or flying objects, whole body exposure o 15 Machine rollover greater than 15 degrees Keep guards and safety sheilds in place Do Not mow on side hill greater than 15 degrees Severing of toes & fingers, rotary mower blade Mow down hill, do not use on down hill slope greater than 1
Safety Symbols Glossary Fast Parking brake Slow Battery Decreasing/Increasing continuous variable, linear Grease Lubrication Point Engine start Power take off (PTO) Engine run Engage Disengage Engine stop Elapsed Operating Hours Engine Fuel Valve shut off Choke Tire Pressure Shut off engine & remove key before leaving machine Fuel Valve open to right tank Fuel Valve open to left tank Hydraulic oil level Pull lever rearward to engage parking brake Machine movement Chok wheels and set parki
Petrol and Oil Recommended Petrol Use UNLEADED Regular Petrol suitable for automotive use (85 pump octane minimum). Leaded regular petrol may be used if unleaded regular is not available. IMPORTANT: Never use methanol, petrol containing methanol, or gasohol containing more than 10% ethanol because the fuel system could be damaged. Do not mix oil with gasoline. POTENTIAL HAZARD • In certain conditions petrol is extremely flammable and highly explosive.
Gasoline and Oil Filling the Fuel Tank POTENTIAL HAZARD • Petrol is harmful or fatal if swallowed. Long–term exposure to vapors has caused cancer to laboratory animals. 1. Shut the engine off and set the parking brake. 2. Clean around each fuel tank cap and remove the cap. Add unleaded regular gasoline to both fuel tanks, until the level is 1/4 to 1/2 inch (6 mm to 13 mm) below the bottom of the filler neck. This space in the tank allows petrol to expand. Do not fill the fuel tanks completely full. 3.
Assembly Loose Parts Note: Use the chart below to verify all parts have been shipped. DESCRIPTION QTY.
Assembly Install Drive Wheels Install Seat Retaining Rod 1. Uncrate mower. 4. 1. Remove wheel bolts or nuts from rear wheel hubs. Tilt seat up. Remove 5/16” (8mm) locknut from bolt attaching seat retaining rod to seat frame (Fig. 2). 5. 2. Align holes. Mount drive wheels with the valve stem to the outside of the traction unit. 3. Secure using wheel bolts or nuts provided. Torque to 95ft–lbs (128 NSM).
Assembly Install Motion Control Levers 1. Remove the (4) 3/8–16 x 1” (26 mm) bolts and (4) 3/8” spring washers which attach the motion control levers to the control arm shafts for shipping (Fig. 3). 2. Place the levers (with the mounting plate towards the rear) on the outside of the control arm shaft and secure with (4) 3/8–16 x 1” (26 mm) bolts and (4) 3/8” spring washers (Fig. 3). 3. Position the lever so the bolts are in the center of the slots on the lever mounting plate and tighten until snug.
Assembly Activate the Battery 2. Bulk electrolyte with 1.260 specific gravity must be purchased from a local battery supply outlet. Remove filler caps from the battery. Slowly pour electrolyte into each cell until the electrolyte level is up to the lower part of the tube (Fig. 5). 1 1. Remove the battery from the machine. IMPORTANT: Be careful not to damage the long vent tube when removing the battery box.
Assembly Install Battery POTENTIAL HAZARD • Charging battery produces gasses. WHAT CAN HAPPEN • Battery gasses can explode causing serious injury. HOW TO AVOID THE HAZARD • Keep cigarettes, sparks and flames away from battery. • Make sure the ignition switch is in the “OFF” position. • Ventilate when charging or using battery in an enclosed space. • Make sure venting path of battery is always open when battery is filled with acid. 4. 5. 6.
Assembly Hydraulic System 1 Checking the Hydraulic Fluid Check the hydraulic fluid level before engine is first started. 2 3 Fluid Type: Mobil 1 15W–50 synthetic motor oil. IMPORTANT: Use only oil specified. Other fluids could cause system damage. Figure 8 Hydraulic System Oil Capacity: 2.1 qt. (2.0 l) 1. Position machine on a level surface and set the parking brake. 2. Clean area around filler neck of hydraulic tank (Fig. 8). 3. Remove cap from filler neck.
Assembly Greasing the Bearings Check Side Discharge Chute Make sure cutting unit spindles are full of grease before engine is first started. Remove plastic tie holding side discharge chute up and lower into place. Grease with No. 2 general purpose lithium base or molybdenum base grease. 1. Grease the fittings on the three spindle bearings. Grease until it comes out lower seals (Fig. 9). 1 m-4721 Figure 9 1.
Operation Think Safety First Controls Please carefully read all the safety instructions on pages 3–11. Knowing this information could help you, your family, pets or bystanders avoid injury. Become familiar with all the controls (Fig. 1) before you start the engine and operate the machine. 1 8 8 2 2 POTENTIAL HAZARD • Loud sound can cause ear damage and loss of hearing. WHAT CAN HAPPEN • Ear damage or hearing loss may occur. HOW TO AVOID THE HAZARD • Wear ear protection when operating this machine.
Operation Parking Brake Installing or Removing Baffles Always set the parking brake when you stop the machine or leave it unattended. The following instructions are for removing and installing baffles. The baffles are used for mulching only. It is written as though you were to install the baffles. Reverse the procedures to remove them. IMPORTANT: Do not park on slopes unless wheels are chocked or blocked. Pre–Installation Setting the Parking Brake 1. Move the motion control levers (Fig.
Operation 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Remove belt covers from mower deck. 3. Remove mower unit. 4. Tip mower deck upside down and block up ends to ease installation of baffle components. 5. Thoroughly clean mower deck. All debris must be removed to ensure baffle will fit properly against mower deck. 6. Repair all bent or damaged areas of mower deck and replace any missing parts.
Operation 3. Tighten all mounting hardware securely. 4. 4 3 Rotate the blades to ensure that there is at least 1/8” clearance between the blades and baffles. 5. 1 2 Using existing hardware, make sure all holes in deck are plugged with a nut and bolt. POTENTIAL HAZARD • Open holes in the mower exposes you and others to thrown debris. WHAT CAN HAPPEN • Debris thrown out of holes in the mower can cause injury.
Operation Note: If a kicker interferes with a blade, reposition it further up into the mower. 6. Turn mower deck over and install belt covers. 7. Install mower deck onto traction unit. POTENTIAL HAZARD • A blade that is bent or damaged could break apart and pieces could be thrown at bystanders or at you as you use the mower. Installing and Removing Blowout Baffles The following instructions are for removing and installing blowout baffles. The blowout baffles are used for side discharge only.
Operation Note: The baffle edges need to be centered between front roller brackets (Fig. 7). 8. Install screws and tighten securely (Fig. 7). 9. Rotate blades to ensure the blades do not hit the blowout baffles. 10. Turn deck over, reinstall deck and deck covers. 7 1 3 5 2 6 4 M-4530 Figure 7 1. Baffles Centered between brackets 2. Righthand Baffle 3. Lefthand Baffle 4. 5. 6. 7.
Operation Starting and Stopping the Engine 2 1 Starting 2 1. Sit down on the seat and move the motion controls to neutral locked position. 2. Set the parking brake; refer to Setting the Parking Brake, page 22. 3. Move the PTO (power take off) to “OFF” (Fig. 8). 4. Move the choke control to “ON” position before starting a cold engine (Fig. 9). Note: 5. 6. m–4201 Figure 8 m–2719 Figure 9 1. PTO-On 2. PTO-Off A warm or hot engine may require choking.
Operation 1. Move the throttle lever to “SLOW” (Fig. 10). Operating the Power Take Off (PTO) 2. Move the PTO (power take off) to “OFF” (Fig. 8). The power take off (PTO) switch engages and disengages power to the electric clutch. 3. Turn the ignition key to “OFF” (Fig. 11). Stopping Note: If the engine has been working hard or is hot, let it idle for a minute before turning the ignition key “OFF.” This helps cool the engine before it is stopped.
Operation The Safety Interlock System Understanding the Safety Interlock System The safety interlock system is designed to prevent the engine from starting unless: • You are sitting on the seat • The parking brake is on “ENGAGED” • The power take off (PTO) is disengaged “OFF” • The motion control levers are in neutral lock position The safety interlock system also is designed to stop the engine when the traction controls are moved with the parking brake on “ENGAGED” or if you rise from the seat whe
Operation 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 The farther you move the traction control levers in either direction, the faster the machine will move in that direction. To stop pull the motion control levers to neutral.
Operation Fuel Tanks POTENTIAL HAZARD • Someone could move or attempt to operate the tractor while it is unattended. WHAT CAN HAPPEN • Children or bystanders may be injured if they use the tractor. HOW TO AVOID THE HAZARD • Always remove the ignition key and set the parking brake when leaving the machine, even if just for a few minutes. The unit has two fuel tanks, one located on the left side and one on the right side. Each tank connects to the fuel shut off valve in the control panel.
Operation Adjusting Height-of-Cut Adjusting Anti-Scalp Rollers The height-of-cut is adjusted from 38 to 114 mm (1-1/2” to 4-1/2”) in 6 mm (1/4”) increments by relocating clevis pin in different hole locations. Whenever you change the height-of-cut it is recommended to adjust the height of the anti-scalp rollers. 1. Raise the height-of-cut lever to the transport position (also the 114 mm (4-1/2”) cutting height position) (Fig. 16). 1.
Operation Positioning the Seat Center Rollers 1. Disengage the power take off (PTO) and turn the ignition key to “OFF”. Move controllers to neutral locked position and apply parking brake. 2. After adjusting height-of-cut, remove bolt and nut (Fig. 18). 3. Select hole so gage wheel is positioned to the nearest corresponding height-of-cut desired (Fig. 18). Note: 4. The seat can move forward and backward. Position the seat where you have the best control of the machine and are most comfortable. 1.
Operation Pushing the Machine by Hand IMPORTANT: Always push the machine by hand. Never tow the machine because hydraulic damage may occur. Side Discharge The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. To Push the Machine 1. Disengage the power take off (PTO) and turn the ignition key to “OFF” to stop the engine. 2. Rotate the by-pass valves counterclockwise 1 turn to push.
Operation Transporting Machines Loading Machines Use a heavy–duty trailer or truck to transport the machine. Ensure that the trailer or truck has all necessary lighting and marking as required by law. Please carefully read all the safety instructions on pages 3–13. Knowing this information could help you, your family, pets or bystanders avoid injury. Use extreme caution when loading units on trailers or trucks.
Operation POTENTIAL HAZARD • Loading a unit on a trailer or truck increases the possibility of backward tip–over. WHAT CAN HAPPEN • Backward tip–over of the unit could cause serious injury or death. HOW TO AVOID THE HAZARD • Use extreme caution when operating a unit on a ramp. • Use only a single, full width ramp; DO NOT use individual ramps for each side of the unit. • If individual ramps must be used, use enough ramps to create an unbroken ramp surface wider than the unit.
Operation Tips for Mowing Grass Fast Throttle Setting Cutting Speed To improve cut quality, use a slower ground speed. For best mowing and maximum air circulation, operate the engine at “FAST.” Air is required to thoroughly cut grass clippings, so do not set the height-of-cut so low as to totally surround the mower by uncut grass. Always try to have one side of the mower free from uncut grass, which allows air to be drawn into the mower.
Maintenance Service Interval Chart Service Operation Each Use 8 Hours 25 Hours Hydraulic fluid–check level Initial Initial X Oil—check level 50 Hours 100 Hours 300 Hours X Initial X Oil Filter–change (200 hours or every other oil change) Hydraulic filter–change Storage Service X X Oil—change* Safety System—check 200 Hours Initial X X X X X X X Chassis—grease* X X Linkage bushings—oil* X X Foam Air Cleaner—service* X X Paper Air Cleaner—service* X X Paper Air Cleaner—re
Maintenance POTENTIAL HAZARD • If you leave the key in the ignition switch, someone could start the engine. WHAT CAN HAPPEN • Accidental starting of the engine could seriously injure you or other bystanders. HOW TO AVOID THE HAZARD • Remove the key from the ignition switch and pull the wire(s) off the spark plug(s) before you do any maintenance. Also push the wire(s) aside so it does not accidentally contact the spark plug(s).
Maintenance Inspecting the Blades Checking for Bent Blades 1. 1. Stop the engine, set the parking brake, remove the key and disconnect the spark plug wire(s) from the spark plug(s). 2. Rotate the blades until the ends face forward and backward (Fig. 22). Measure from a level surface to the cutting edge of the blades (Fig. 23). Note this dimension. 2. Inspect the cutting edges (Fig 21). If the edges are not sharp or have nicks, remove and sharpen the blades.
Maintenance Sharpening the Blades 1. POTENTIAL HAZARD • A blade that is bent or damaged could break apart and pieces could be thrown at bystanders or at you as you use the mower. Use a file to sharpen the cutting edge at both ends of the blade (Fig. 25). Maintain the original angle. The blade retains its balance if the same amount of material is removed from both cutting edges. WHAT CAN HAPPEN • Pieces of blade that may be thrown could seriously injure or kill you or bystanders.
Maintenance Air Cleaner 3. Carefully remove the foam element from the paper element (Fig. 27). Foam Element: Clean and re-oil after every 25 operating hours. 4. Unscrew the wing nut and remove the paper element (Fig. 27). Paper Element: Clean after every 100 operating hours. Replace after every 300 operating hours or yearly. Which ever comes first.
Maintenance 2. Cleaning the Cooling System Paper Element A. Lightly tap the element on a flat surface to remove dust and dirt (Fig. 29). B. 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. Replace the paper element if it is damaged or cannot be cleaned thoroughly.
Maintenance Engine Oil Checking Oil Level Change oil: • After the first 8 operating hours. • After every 100 operating hours. Note: 1. Park the machine on a level surface, disengage the power take off (PTO) and turn the ignition key to “OFF” to stop the engine. Remove the key. 2. Clean around the oil dipstick (Fig. 31) so dirt cannot fall into the filler hole and damage the engine. 3. Unscrew the oil dipstick and wipe the end clean (Fig. 31). 4.
Maintenance Changing/Draining Oil Change Oil Filter 1. Start the engine and let it run five minutes. This warms the oil so it drains better. Replace the oil filter every 200 hours or every other oil change. 2. Park the machine so that the drain side is slightly lower than the opposite side to assure the oil drains completely. Then disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key. 3. Place a pan below the oil drain.
Maintenance Spark Plug Checking the Spark Plug Check the spark plug(s) after every 100 operating 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. 1. IMPORTANT: Never clean the spark plug(s).
Maintenance Fuel Filter Fuel Tank Replace the fuel filter after every 200 operating hours or yearly, whichever occurs first. Draining The Fuel Tank Replacing the Fuel Filter POTENTIAL HAZARD • In certain conditions gasoline is extremely flammable and highly explosive. Never install a dirty filter if it is removed from the fuel line. 1. Disengage the power take off (PTO), set the parking brake, and turn the ignition key to “OFF” to stop the engine. Remove the key.
Maintenance Greasing and Lubrication 4. Pull the fuel line off fuel filter (Fig. 37). 5. Open fuel shut-off valve for left and right tanks. Allow gasoline to drain into a gas can or drain pan. (Fig. 37). Note: 6. Now is the best time to install a new fuel filter because the fuel tank is empty. Install the fuel line onto the fuel filter. Slide the hose clamp close to the fuel filter to secure the fuel line (Fig. 37). 3 1 4 2 Figure 37 1. Fuel shut-off valve 2. Fuel filter 3.
Maintenance Grease Front Castor Pivots Lubricate the front castor pivots once a year. 1. Remove hex plug and cap. Thread a grease zerk into hole. 2. Pump grease into zerk until it oozes out around top beraring. 3. Remove grease zerk in hole. Reinstall hex plug and cap. Greasing the Bearings The cutting unit must be lubricated regularly. Refer to the Service Interval Chart on page 38. Grease with No. 2 general purpose lithium base or molybdenum base grease. 1.
Maintenance Hydraulic System 1 Checking the Hydraulic Fluid Check the hydraulic fluid level: • Before engine is first started. • After first 8 operating hours. • After 25 operating hours. 2 3 Fluid Type: Mobil 1 15W–50 synthetic motor oil. IMPORTANT: Use only oil specified. Other fluids could cause system damage. Figure 40 1. Cap 2. Baffle 3. Fluid level-Full System Capacity: 2.0 l (2.1 qt.) 1. Position machine on a level surface, stop the engine and set the parking brake. 2.
Maintenance Replacing the Hydraulic Filter Change the hydraulic filter: 1 • After the first 8 operating hours. • After every 200 operating hours. 1. Position machine on a level surface, stop the engine, and remove key from ignition switch. 2 IMPORTANT: Do not substitute automotive oil filter or severe hydraulic system damage may result. 2. 3 Remove hydro cap and temporarily cover opening with a plastic bag and rubber band to prevent all hydro fluid from draining out. A.
Maintenance Check Hydraulic Lines After every 100 operating hours, check hydraulic lines and hoses for leaks, loose fittings, kinked lines, loose mounting supports, wear, weather and chemical deterioration. Make necessary repairs before operating. 1 m–1872 Figure 43 1. Valve stem POTENTIAL HAZARD • Hydraulic fluid escaping under pressure can penetrate skin and cause injury.
Maintenance Wheel Hub Slotted Nut Mower Leveling Check after every 500 operating hours. 1. Position mower on a flat surface. Stop the engine, set the parking brake, remove the key and disconnect the spark plug wire(s) from the spark plug(s). 2. Check tire pressure of all four (4) tires. If needed, adjust to 90 kPa (13 psi). 3. Set anti–scalp rollers to top holes or remove them completely for this adjustment. 4. Raise the deck to the transport position (Fig. 46).
Maintenance Note: 8. When hardware is loose, deck will rotate the lift handle up out of position. When hardware is loosened, remaining tension in the large support springs will tend to rotate the deck lift handle up, out of the 38mm (1–1/2”) position. Press down on the rear deck support arm to firmly return the deck lift handle to the 38mm (1–1/2”) position (Fig. 47). Note: 9.
Maintenance Adjusting Push Arms Throttle Lever Adjustment 1. To adjust push arms, loosen jam nut and rotate ball joint counterclockwise, one turn at a time. (Fig. 48). The tension can be adjusted by adjusting the tightness of lever pivot bolt. Do this when needed. 1. Stop engine, remove ignition key. 1. Adjust each side the same amount. Each push arm should have a nominal length of 389 mm (15–5/16”) (Fig. 48). 2. Remove console from machine to gain access to throttle lever. Note: 3.
Maintenance Clean Under Deck Remove grass build up under deck daily. 1. Position mower on a flat surface. Stop the engine, set the parking brake, remove the key and disconnect the spark plug wire(s) from the spark plug(s). 2. Raise deck to the transport position. 3. Lift the front of unit and support unit using jack stands. POTENTIAL HAZARD • Mechanical or hydraulic jacks may not support machine WHAT CAN HAPPEN • Weight of machine can cause hydraulic jacks to fail and cause an injury.
Maintenance Replacing the Deck Belt Squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks and cracks are signs of a worn deck belt. Replace the deck belt if any of these conditions are evident. 1. POTENTIAL HAZARD • Spring is under tension when installed. WHAT CAN HAPPEN • Stored spring energy can cause personal injury. Stop the engine, set the parking brake, remove the key and disconnect the spark plug wire(s) from the spark plug(s). 2.
Maintenance Replacing the Pump Drive Belt Replacing the Grass Deflector Check pump drive belt for wear after every 50 hours of operation. 1. Stop the engine, set the parking brake, remove the key and disconnect the spark plug wire(s) from the spark plug(s). 2. Remove the locknuts, bolts and springs holding the deflector mounts to the pivot brackets (Fig. 53). 3.
Maintenance Adjusting Motion Controls 5. Apply slight rearward pressure on the motion control lever, turn the head of the adjustment bolt in the appropriate direction until lever is centered in neutral lock position (keeping rearward pressure on the lever will keep the pin at the end of the slot and allow the adjustment bolt to move the lever to the appropriate position (Fig. 55). 6. Tighten nut and jam nut. 7. Repeat on opposite side of unit.
Maintenance Adjusting Hydraulic Pump Neutral Note: Adjust handle neutral first. That has to be correct before the following adjustment can be made. POTENTIAL HAZARD • Mechanical or hydraulic jacks may not support machine. Note: 5. Start engine, open throttle 1/2 way and release parking brake. Refer to Starting and Stopping the Engine, page 27. 6. Adjust pump rod length by rotating double nuts on rod, in the appropriate direction, until wheel is still or slightly creeps in reverse (Fig. 55). 7.
Maintenance Adjustment Parking Brake Fuse Check parking brake for proper adjustment. Service Interval/Specification 1. Disengage brake lever (lever down). 2. Measure the length of the spring. Measurement should be 70 mm (2.75”) between washers (Fig. 56). The electrical system is protected by fuses. It requires no maintenance: however, if a fuse blows check component/circuit for malfunction or short. 3.
Maintenance Battery Check the electrolyte level in the battery every 25 hours. Always keep the battery clean and fully charged. Use a paper towel to clean the battery case. If the battery terminals are corroded, clean them with a solution of four parts water and one part baking soda. Apply a light coating of grease to the battery terminals to prevent corrosion. IMPORTANT: Do not overfill the battery because electrolyte (sulfuric acid) can cause severe corrosion and damage to the chassis. 4.
Maintenance Wiring Diagram 63
Maintenance Cleaning and Storage 1. Disengage the power take off (PTO), set the parking brake and turn the ignition key to “OFF” to stop the engine. Remove the key. 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’s cylinder head fins and blower housing. B. Run engine to distribute conditioned fuel through the fuel system (5 minutes). C.
Maintenance 13. Clean any dirt and chaff from the top of the mower. 14. Scrape any heavy buildup of grass and dirt from the underside of the mower, then wash the mower with a garden hose. 15. Check the condition of the blades. Refer to Cutting Blades on page 39. 16. Check the condition of the drive and deck belts. 17. Store the machine in a clean, dry garage or storage area. Remove the key from the ignition switch and keep it in a memorable place. Cover the machine to protect it and keep it clean.
Troubleshooting PROBLEM Starter does not crank Engine will not start, starts hard, or fails to keep running. Engine g loses power. 66 POSSIBLE CAUSES CORRECTIVE ACTION 1. Blade control (PTO) is ENGAGED. 1. Move blade control (PTO) to DISENGAGED. 2. Parking brake is not on. 2. Set parking brake. 3. Operator is not seated. 3. Sit on the seat. 4. Battery is dead. 4. Charge the battery. 5. Electrical connections are corroded or loose. 5. Check electrical connections for good contact.
Troubleshooting PROBLEM Engine g overheats. Abnormal vibration. Machine does not drive. Abnormal vibration. POSSIBLE CAUSES CORRECTIVE ACTION 1. Engine load is excessive. 1. Reduce ground speed. 2. Oil level in crankcase is low. 2. Add oil to crankcase. 3. Cooling fins and air passages under engine blower housing are plugged. 3. Remove obstruction from cooling fins and air passages. 1. Engine mounting bolts are loose. 1. Tighten engine mounting bolts. 2.
Troubleshooting PROBLEM Uneven cutting g height. g Blades do not rotate. 68 POSSIBLE CAUSES CORRECTIVE ACTION 1. Blade(s) not sharp. 1. Sharpen blade(s). 2. Cutting blade(s) is/are bent. 2. Install new cutting blade(s). 3. Mower is not level. 3. Level mower from side-to-side and front-to-rear. 4. Gage wheel not set correctly. 4. Adjust gage wheel height. 5. Underside of mower is dirty. 5. Clean the underside of the mower. 6. Tire pressure is incorrect. 6. Adjust tire pressure.
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Troubleshooting 70
