Form No. 3400-922 Rev B Z Master® Professional 5000 Series Riding Mower with 48in TURBO FORCE® Side Discharge Mower Model No. 74904—Serial No. 316000001 and Up Register at www.Toro.com.
This spark ignition system complies with Canadian ICES-002. 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.
Contents Safety ....................................................................... 4 Safe Operating Practices.................................... 4 Toro Mower Safety.............................................. 6 Slope Indicator ................................................... 8 Safety and Instructional Decals .......................... 9 Product Overview ................................................... 15 Controls ........................................................... 15 Specifications ...
Safety Adjusting the Tracking ...................................... 48 Checking the Tire Pressure............................... 48 Checking the Wheel-Lug Nuts .......................... 48 Checking the Wheel Hub Slotted Nut ................ 48 Adjusting the Caster-Pivot Bearing ................... 49 Using the Clutch Shim ...................................... 49 Cooling System Maintenance .............................. 51 Cleaning the Engine Screen and Engine-Oil Cooler .................................
Preparation • Keep your hands and feet away from the cutting unit. • Evaluate the terrain to determine what accessories • • • and attachments are needed to properly and safely perform the job. • Look behind and down before backing up to Note: Use only accessories and attachments • Keep pets and bystanders away from an operating ensure a clear path. approved by the manufacturer. Wear appropriate clothing, including eye protection, substantial, slip-resistant shoes, and hearing protection.
Maintenance and Storage This product is designed for cutting and recycling grass, or, when equipped with a grass bagger, for catching cut grass. Any use for purposes other than these could prove dangerous to the user and bystanders. • Disengage drives, set the parking brake, shut off the engine, and remove the key or disconnect spark-plug wire. Wait for all movement to stop before adjusting, cleaning, or repairing. • Park the machine on a level surface.
Using the Rollover-Protection System (ROPS) General Operation • Be sure that the area is clear of bystanders before • • • • • • • • • • mowing. Stop the machine if anyone enters the area. Do not touch equipment or attachment parts which may be hot from operation. Allow all of the parts to cool before attempting to maintain, adjust, or service the machine. Use only Toro-approved attachments. Warranty may be voided if used with any unapproved attachments. Check carefully for overhead clearances (i.e.
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.
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. decal58-6520 58-6520 decal106-2655 1. Grease 106-2655 1. Warning—do not touch or approach moving belts; remove the ignition key and read the instructions before servicing or performing maintenance. decal93-7818 93-7818 1.
decal110-2068 110-2068 1. Read the Operator's Manual. decal114-4466 114-4466 1. Main, 25 A 3. Charge, 25 A 2. PTO, 10 A 4. Auxiliary, 15 A decal107-3069 107-3069 1. Warning—there is no rollover protection when the roll bar is down. 2. To avoid injury or death from a rollover accident, keep the roll bar in the raised and locked position and wear the seat belt. Lower the roll bar only when absolutely necessary; do not wear the the seat belt when the roll bar is down. 3.
decal116-1716 116-1716 1. Fuel 2. Empty 6. Hour meter 7. PTO 3. Half 8. Parking brake 4. Full 5. Battery 9. Neutral 10. Operator-presence switch decal117-0346 117-0346 1. Fuel leak hazard—read the Operator's Manual; do not attempt to remove the roll bar; do not weld, drill or modify the roll bar in any way. decal116-4858 116-4858 decal116-5988 decal117-3848 116-5988 1. Parking brake—engaged 117-3848 2. Parking brake—disengaged 1.
decal117-3864 117-3864 1. Read the Operator’s Manual. 2. Fill to bottom of filler neck; warning—do not overfill the tank. decal126-4398 126-4398 1. Read the Operator’s manual. 2. Lock 3. Unlock decal121-7586 121-7586 1. Fast 2. Variable-speed control 3. Slow 4. Power takeoff (PTO) decal126-2055 126-2055 1. Wheel lug nut torque 95 ft-lb (129 N-m) (4x) 2. Wheel hub nut torque 235 ft-lb (319 N-m) 3.
decalbatterysymbols Battery Symbols Some or all of these symbols are on your battery 1. Explosion hazard 6. Keep bystanders a safe distance from the battery. 2. No fire, open flame, or smoking. 7. Wear eye protection; explosive gases can cause blindness and other injuries 3. Caustic liquid/chemical burn hazard 4. Wear eye protection 8. Battery acid can cause blindness or severe burns. 9. Flush eyes immediately with water and get medical help fast. 5. Read the Operator's Manual. 10.
decal132-0871 132-0871 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 as well as the conditions in which you would operate the machine to determine whether you can operate the machine in those conditions on that day and at that site.
Hour Meter Product Overview The hour meter records the number of hours the engine has operated. It operates when the engine is running. 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 in the On position (Figure 6). The indicator light appears when the fuel level is low (approximately one gallon remaining in the fuel tank).
Note: When the engines starts, release the key. 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. Failure to follow these instructions can burn out the starter motor. Note: You may need multiple attempts to start the engine the first time after adding fuel to an empty fuel system.
Specifications Note: Specifications and design are subject to change without notice. Width 48-inch Deck Without Deck 116.1 cm (45.7 inches) Deflector Up 137.2 cm (54 inches) Deflector Down 161.4 cm (63.6 inches) Length 48-inch Deck g008948 Figure 11 1. On position 2. Off position Roll Bar—Up 201.2 cm (79.2 inches) Roll Bar—Down 205.5 cm (80.
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.
Add the correct amount of gas stabilizer/conditioner to the gas. 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. g009189 Filling the Fuel Tank 1. Park the machine on level ground. 2. Shut the engine off and set the parking brake. 3. Clean around the fuel-tank cap and remove it.
Using the Rollover-Protection System (ROPS) WARNING To avoid injury or death from rollover, keep the roll bar in the fully raised locked position and use the seat belt. Ensure the seat is secured to the machine. WARNING There is no rollover protection when the roll bar is in the down position. • Lower the roll bar only when absolutely necessary. • Do not wear the seat belt when the roll bar is in the down position. • Drive slowly and carefully. • Raise the roll bar as soon as clearance permits.
Think Safety First Please read all safety instructions and symbols in the safety section. Knowing this information could help you or bystanders avoid injury. DANGER Operating the machine on wet grass or steep slopes can cause sliding and loss of control. • Do not operate on slopes greater than 15 degrees. • Reduce speed and use extreme caution on slopes. g000963 Figure 14 • Do not operate the machine near water. 1. Safe Zone—use the Z Master here on slopes less than 15 degrees or flat areas. 2.
Setting the Parking Brake Starting and Stopping the Engine WARNING Parking brake may not hold machine parked on a slope and could cause personal injury or property damage. Starting the Engine 1. Do not park on slopes unless the wheels are chocked or blocked. 2. 3. 4. 5. Raise the ROPS up and lock into place, sit on the seat, and fasten the seat belt. Move the motion controls to NEUTRAL-LOCK position. Set the parking brake; refer to Setting the Parking Brake (page 22).
time after the fuel system has been without fuel completely. g008947 Figure 19 Stopping 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 ignition key and set the parking brake when leaving the machine unattended, even if just for a few minutes. g027337 Figure 20 Let the engine idle at slow throttle (turtle) for 60 seconds before turning the ignition switch off.
Understanding the Safety-Interlock System 3. Sitting on the seat, engage the parking brake, move the blade-control switch (PTO) to the OFF position, and move the motion-control levers to NEUTRAL-LOCK position. Now start the engine. While the engine is running, release the parking brake, engage the blade-control switch (PTO) and rise slightly from the seat; the engine should shut off. 4.
Using the Motion-Control Levers g008952 Figure 23 g004532 Driving Backward Figure 22 1. Motion-control lever (NEUTRAL-LOCK position) 4. Backward 1. Move the levers to the center, unlocked position. 2. Center, unlocked position 5. Front of machine 2. To go backward, slowly pull the motion-control levers rearward (Figure 24). 3. Forward Driving Forward Note: The engine will shut off if you move the traction-control levers with the parking brake engaged.
Stopping the Machine To stop the machine, move the traction-control levers to neutral, and then move them to the LOCKED position, disengage the power takeoff (blade-control switch (PTO), and turn the ignition key to the OFF position. Set the parking brake when you leave the machine; refer to Setting the Parking Brake (page 22). Remember to remove the key from the ignition switch. CAUTION Children or bystanders may be injured if they move or attempt to operate the machine while it is unattended.
Adjusting the Height-of-Cut Pin The height-of-cut is adjusted from 25 to 140 mm (1 to 5-1/2 inches) in 6 mm (1/4 inch) increments by relocating the clevis pin into different hole locations. g008955 Figure 25 Transport-Lock Positions 1. Transport lock 3. UNLOCK position—does not lock the mower deck into transport position 2. LOCK position—release the lock from the locked position 27 1. Move the transport lock to the LOCK position. 2.
g000942 Figure 27 1. Anti-scalp roller 4. Flange nut 2. Spacer 5. Bolt 3. Bushing g027343 Figure 26 1. Deck-lift pedal 3. Transport lock 2. Cut-of-height pin Adjusting the Anti-Scalp Rollers Whenever you change the height of cut, adjust the height of the anti-scalp rollers. 1. g000943 Figure 28 Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and set the parking brake. 2.
Adjusting the Flow-Baffle-Cam Locks Position A This is the full rear position. The suggested use for this position is as follows: • Short, light grass mowing conditions • Dry conditions • Smaller grass clippings • Propels grass clippings farther away from the mower This procedure is applicable only to machines with the flow-baffle locks. Certain models have nuts and bolts in place of the flow-baffle locks and you can adjust them the same.
Changing the Seat Suspension The seat adjusts to provide a smooth and comfortable ride. Position the seat where you are most comfortable. To adjust the seat, turn the knob in front either direction to provide the best comfort (Figure 36). g005834 Figure 33 Positioning the Seat The seat moves forward and backward. Position the seat where you have the best control of the machine and are most comfortable. g019768 Figure 36 1.
Using the Side Discharge Note: Ensure that the release valves are in the fully horizontal position when operating the machine or severe damage to the hydraulic system can occur. 1. 2. The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. Disengage the PTO (blade-control switch), turn the ignition key to the OFF position, move the levers to NEUTRAL-LOCK position, apply the parking brake, and remove the key.
Transporting the Machine Loading the Machine Use a heavy-duty trailer or truck to transport the machine. 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, your family, pets, or bystanders avoid injury. Use extreme caution when loading or unloading machines onto a trailer or a truck. Use a full-width ramp that is wider than the machine for this procedure.
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. • Ensure that the ROPS is in the up position and use the seat belt when loading or unloading the machine. Ensure that the ROPS will clear the top of an enclosed trailer. • Use only a full-width ramp; do not use individual ramps for each side of the machine.
Cutting Long Grass Operating Tips If the grass is ever allowed to grow slightly longer than normal, or if it contains a high degree of moisture, raise the cutting height higher than usual and cut the grass at this setting. Then cut the grass again using the lower, normal setting. Using the Fast Throttle Setting For best mowing and maximum air circulation, operate the engine at the FAST throttle position.
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 torque on the wheel-lug-nuts. • Check the wheel hub slotted-nut torque. • Check the parking brake adjustment. After the first 250 hours • Change the hydraulic filters and hydraulic fluid when using any type of fluid. Before each use or daily • • • • • • • • Check the safety system. Check the engine-oil level.
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 the Mower Greasing and Lubrication Service Interval: Every 50 hours—Grease the mower-deck spindles and the idler arm. Grease more frequently when operating conditions are extremely dusty or sandy. Yearly—Grease the pump-belt-idler arm.
Lubricating the Caster-Wheel Hubs Service Interval: Yearly 1. Shut off the engine, wait for all moving parts to stop, remove the key, and engage the parking brake. g009030 Figure 43 g006115 6. Figure 45 Remove the dust cap and adjust the caster pivots. 1. Seal guard Note: Keep the dust cap off until greasing is done; refer to Adjusting the Caster-Pivot Bearing (page 49). 2. Raise the mower for access. 7. Remove the hex plug. 3. Remove the caster wheel from the caster forks. 8.
Engine Maintenance 12. With the open end of the wheel facing up, fill the area inside the wheel around the axle full of general-purpose grease. 13. Insert the second bearing and new seal into the wheel. 14. Apply a thread-locking adhesive to the second spacer nut, and thread it onto the axle with the wrench flats facing outward. Every 300 hours/Yearly (whichever comes first)—Replace the primary air filter (more often in dusty or sandy conditions). 15.
Note: Avoid knocking the filter into the side of 1. If you are installing new filters, check each filter for shipping damage. Do not use a damaged filter. 2. If you are replacing the inner filter, carefully slide it into the filter body (Figure 47). 3. Carefully slide the primary filter over the inner filter (Figure 47). the body. 9. Remove the inner filter only if you intend to replace it. Important: Never attempt to clean the inner filter.
Servicing the Engine Oil Oil Type: Detergent oil (API service SF, SG, SH, SJ, or SL) Crankcase Capacity: with a filter change, 2.1 L (71 oz); without a filter change, 1.8 L (61 oz) g008804 Viscosity: See the table below. g004216 Figure 48 Note: Use of multi-grade oils (5W-20, 10W-30, or 10W-40) will increase oil consumption. Check the oil level more frequently when using them. Checking the Engine-Oil Level Service Interval: Before each use or daily Note: Check the oil when the engine is cold.
Changing the Engine Oil 5. Service Interval: After the first 8 hours Every 100 hours (more often in dirty or dusty conditions). 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 51). Note: Dispose of the used oil at a recycling center. 1. Start the engine and let it run for 5 minutes. Note: This warms the oil so that it drains better. 2. 3. 4.
Changing the Engine-Oil Filter Servicing the Spark Plugs Service Interval: Every 200 hours Service Interval: Every 500 hours/Yearly (whichever comes first)—Check and gap the spark plug. Note: Change the engine-oil filter more frequently when operating conditions are extremely dusty or sandy. 1. Drain the oil from the engine; refer to Changing the Engine Oil (page 41). 2. Change the engine-oil filter (Figure 52).
5. Install the left hydraulic-unit shroud (Figure 53). Checking the Spark Plugs Important: Replace the spark plugs when they have a black coating, worn electrodes, an oily film, cracks, or if reuse is questionable. g009922 If you see light brown or gray on the insulator, the engine is operating properly. A black coating on the insulator usually means that the air cleaner is dirty. Set the gap to 0.76 mm (0.030 inch).
Checking the Spark Arrester Fuel System Maintenance For a Model with a Spark Arrester WARNING Service Interval: Every 50 hours Fuel system components are under high pressure. The use of improper components can result in system failure, gasoline leakage, and possible explosion. WARNING Hot exhaust system components may ignite gasoline vapors even after the engine is stopped. Hot particles exhausted during engine operation may ignite flammable materials.
Electrical System Maintenance Servicing the Battery Service Interval: Monthly DANGER Battery electrolyte contains sulfuric acid, which is a deadly poison and causes severe burns. Do not drink electrolyte and avoid contact with skin, eyes, or clothing. Wear safety glasses to shield your eyes and wear rubber gloves to protect your hands. g008963 Figure 57 1. Fuel filter 2. Hose clamp 3. Fuel line 5. Squeeze the ends of the hose clamps together and slide them away from the filter (Figure 57). 6.
Installing the Battery Note: Position battery in the tray with the terminal posts opposite from the hydraulic tank (Figure 59). g010168 g032526 Figure 59 g027728 Figure 58 Charging the Battery WARNING Charging the battery produces gasses that can explode. Never smoke near the battery and keep sparks and flames away from battery. Important: Always keep the battery fully charged (1.265 specific gravity). This is especially important to prevent battery damage when the temperature is below 0°C (32°F). 1.
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 the seat belt before operating the machine if the belt is damaged. g000960 Checking the Rollover-Protection System (ROPS) Knobs Figure 60 1. Positive battery post 3. Red (+) charger lead 2. Negative battery post 4.
g001055 Figure 63 Checking the Wheel-Lug Nuts Check and torque the wheel lug nuts to 122 to 129 N-m (90 to 95 ft-lb). Checking the Wheel Hub Slotted Nut Service Interval: After the first 100 hours Every 500 hours Check and ensure that the torque of the slotted nut is 286 to 352 N-m (211 to 260 ft-lb). g008943 Figure 62 1. ROPS knob (locked position) 3. Roll bar in the upright position 2. Pull the ROPS knob out and rotate it 90 degrees to change the roll bar position. 4.
g001297 Figure 65 1. Spring washers 3. Dust cap 2. Locknut g024121 Figure 64 Using the Clutch Shim 1. Slotted nut Some later model year units have been built with clutches that contain a brake shim. When the clutch brake has worn to the point where the clutch no longer engages consistently, you can remove the shim to extend the life of the clutch. Adjusting the Caster-Pivot Bearing Service Interval: Every 500 hours/Yearly (whichever comes first) 1.
2. Using an air compressor, blow out any debris from under the brake pole and around the brake spacers. g010871 Figure 69 1. Shim g010868 C. Using a pneumatic line, blow out any debris from under the brake pole and around the brake spacers. D. Torque each bolt (M6 x 1) to 13 N-m (10 ft-lb) +/-0.7 N-m (0.5 ft-lb). E. Using a 0.25 mm (0.01 inch) thick feeler gauge, verify that a gap is present between the rotor and the armature face on both sides of the brake pole as shown. Figure 67 3.
Cooling System Maintenance • If the gap is less than 0.25 mm (0.01 inch), then install the shim and refer to Troubleshooting (page 69). • If the gap is sufficient, proceed to the safety check in step F. F. Cleaning the Engine Screen and Engine-Oil Cooler Perform the following safety check: i. Sit on the seat and start the engine. ii. Ensure that the blades do not engage with the PTO switch in the OFF position, and that the clutch is disengaged.
Checking and Cleaning the Hydraulic-Unit Shrouds Service Interval: Before each use or daily 1. Disengage the PTO and set 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. Move the seat forward. 4. Clean the debris and grass from the hydraulic-unit shrouds (Figure 74). 5. Position the seat. g004218 Figure 73 1. Engine guard 4. Fan housing 2. Engine air-intake screen 5. Screw g009922 3.
Brake Maintenance Adjusting the Parking Brake Service Interval: After the first 100 hours Every 500 hours thereafter Note: Follow this procedure after you remove or replace a brake component. 1. Move the machine onto a level surface. 2. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 3. 4. g026961 Figure 75 Left Side Shown Shut off the engine, wait for all moving parts to stop, and remove the key.
Belt Maintenance Inspecting the Belts Service Interval: Every 50 hours Check the belts for squealing when the belt is rotating; the blades are slipping when cutting grass; frayed belt edges; burn marks; and cracks, which are signs of a worn mower belt. Replace the mower belt if any of these conditions occur. Replacing the Mower Belt 1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and set the parking brake. 2.
Replacing the Hydraulic Pump-Drive Belt 1. Disengage the PTO and set 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 mower belt; refer to Replacing the Mower Belt (page 54). 4. Raise the machine and support it with jack stands (Figure 79). g027730 Figure 78 g009039 Figure 79 1. Idler pulley 5. Left hydraulic-pump pulley 2. Clutch pulley 6. Square hole in the idler arm 7. Idler spring 3.
7. Remove the belt from the hydraulic unit drive pulleys and the engine pulley. 8. Install the new belt around engine pulley and the 2 drive pulleys. 9. Using a ratchet in the square hole in the idler arm, install the idler spring to the frame (Figure 79). 10. Controls System Maintenance Adjusting the Control-Handle Position Install the mower belt; refer to Replacing the Mower Belt (page 54). There are 2 height positions for the control levers—high and low.
4. Remove the electrical connection from the seat safety switch, located under the bottom cushion of the seat. Note: The switch is a part of the seat assembly. 5. Temporarily install a jumper wire across the terminals in the connector of the main wiring harness. 6. Start the engine and run it at full throttle and release the brake. Note: The brake must be engaged and the motion-control levers must be out to start the engine. You do not have to be in the seat because of the jumper wire being used. 7.
Adjusting the Motion Control Neutral-Lock Pivot the lever, allow the reverse-indicator springs to bring the levers back to neutral. Note: The wheels must stop turning or slightly creep in reverse. You can adjust the flanged nut to obtain a more desired motion-control lever resistance when moving it to the NEUTRAL-LOCK position. See Figure 84 for adjustment options. 11. Shut off the unit, remove the jumper wire from the wire harness, and plug the connector into the seat switch. 12.
Hydraulic System Maintenance Servicing the Hydraulic System Hydraulic Fluid Type: Toro® HYPR-OIL™ 500 hydraulic fluid or Mobil® 1 15W-50. Important: Use the specified fluid. Other fluids could cause system damage. Each Hydraulic System Fluid Capacity: 1.5 L (52 oz) per side with filter change Checking the Hydraulic Fluid Service Interval: Every 50 hours—Check the hydraulic fluid level. 1. Position the machine on a level surface. 2.
Replacing the Hydraulic Filters and Hydraulic Fluid Service Interval: After the first 250 hours—Change the hydraulic filters and hydraulic fluid when using any type of fluid. Every 250 hours—Change the hydraulic filters and hydraulic fluid when using Mobil® 1 fluid (more often in dirty or dusty conditions). Every 500 hours—Change the hydraulic filters and hydraulic fluid when using Toro® HYPR-OIL™ 500 hydraulic fluid (more often in dirty or dusty conditions).
Mower Deck Maintenance Leveling the Mower Deck Setting up the Machine Note: Ensure that the mower deck is leveled before matching the height of cut (HOC). 1. Position the mower on a flat surface. 2. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and set the parking brake. 3. Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 4. Check tire pressure of the drive tires. 5.
12. To adjust the single-point system, loosen the 2 bolts at the bottom of the height-of-cut plate (Figure 91). g009196 Figure 89 1. 7.6 cm (3 inches) at position A is correct 2. 8.3 cm (3-1/4 inches) at position B is correct 3. Measure here from the blade tip to the hard surface 4. Measure at position A and B on both sides g027345 Figure 91 10. If needed, loosen the whizlock nut on the side of the yoke and the jam nut on top (Figure 90). 11. Fine tune the screw adjuster by turning it to get 7.
Servicing the Cutting Blades Note: In most conditions, the back blade tip should be adjusted 6.4 mm (1/4 inch) higher than the front. 15. Torque the 2 bolts to 37 to 45 N-m (27 to 33 ft-lb). 16. On both sides of the deck, measure from the level surface to the back tip of the blade (postion B) as shown in Figure 89. To ensure a superior quality of cut, keep the blades sharp. For convenient sharpening and replacement, you may want to keep extra blades on hand.
Removing the Blades Checking for Bent Blades 1. Disengage the PTO, move the motion-control levers to the NEUTRAL-LOCK position, and set 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. Rotate the blades until the ends face forward and backward. 1. Hold the blade end using a rag or a thickly-padded glove. 4. Measure from a level surface to the cutting edge, position A, of the blades (Figure 94 ). 2.
2. Check the balance of the blade by putting it on a blade balancer (Figure 97). Removing the Mower Deck Note: If the blade stays in a horizontal position, Before servicing or removing the mower deck, lock out the spring-loaded deck arms. the blade is balanced and can be used. WARNING Deck-lift-arm assemblies have stored energy. Removing the deck without releasing the stored energy can cause serious injury or death. g000277 Figure 97 1. Blade 2. Balancer 3.
8. Raise the deck struts and secure them in the up position. 9. Slide the deck out to the right side of the machine. Replacing the Grass Deflector WARNING An uncovered discharge opening could allow the lawn mower to throw objects at you or bystanders, resulting in serious injury. Also, contact with the blade could occur. Do not operate the lawn mower unless you install a cover plate, a mulch plate, grass deflector, or bagger. g009038 Figure 99 1. Clutch pulley 2. Mower belt 5.
6. Cleaning Place 1 J-hook end of the spring around the grass deflector (Figure 101). Important: The grass deflector must be able Cleaning under the Mower to rotate. Lift the deflector up to the full-open position and ensure that it rotates into the full down position. Service Interval: Before each use or daily 1. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and set the parking brake. 2.
Storage an alcohol based stabilizer (ethanol or methanol). Cleaning and Storing the Machine Note: A fuel stabilizer/conditioner is most 1. 2. effective when mixed with fresh fuel and used at all times. Disengage the power-take off (blade-control switch (PTO), set the parking brake, and turn the ignition key to the Off position, and remove the key. Remove grass clippings, dirt, and grime from the external parts of the entire machine (especially the engine and hydraulic system).
Troubleshooting Problem The malfunction-indicator light (MIL) comes on. Possible Cause 1. The engine is too hot. 1. Turn the engine off and let it cool. 2. There is old fuel in the fuel tank. 3. The fuel-shutoff valve is not open. 4. The air cleaner is dirty. 2. Use new fuel. 3. Open the fuel-shutoff valve. 4. Ensure that the air cleaner and precleaner are clean. Replace them if necessary. 5. Charge or replace the battery. 6. Contact an Authorized Service Dealer. 5. The battery is not charged. 6.
Problem The engine loses power. The engine overheats. The mower pulls to the left or right (with levers fully forward) The machine does not drive. The machine vibrates abnormally. The machine produces an uneven cutting height. 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.
Problem The clutch does not engage. Possible Cause Corrective Action 1. The fuse is blown. 1. Replace the fuse. Check the coil resistance, battery charge, charging system, and wiring connections, and replace components if necessary. 2. There is low voltage supply at the clutch. 2. Check the coil resistance, battery charge, charging system, and wiring connections and replace parts if necessary. 3. Replace the clutch. 4. Repair or replace the clutch lead wire or electrical system.
GND BK BK + - A C FUEL SENDER S B BU PK (PTO SWITCH) SW2 PK PK 2 3 BN BN BN V 4 5 BK BK U2 BK F4 PK 7 4 9 HOUR METER 7 W PK 12 OR 10 T SW6 (BRAKE) GND 15A 6 2 3 Y 11 LTGR SW4 (NEUT_L) BN 8 B PTO CLUTCH TVS DIODE BK A BN F3 SW5 (NEUT_R) PTO 1 PK FUEL_SOLENOID NEUTRAL 8 SEAT OR BRAKE 5 8 4 7 10A KEY_A 1 GN SW7 (SEAT) BN PK OR GY R OR R GY PK PK GY V SW1 (IGNITION) 2 5 1 3 B I S R 5 GN 2 OPTIONAL ACCESSORIES FUEL GROUND B+ KEY_S 72 MAGNETO
Notes:
Notes:
Notes:
The Toro Warranty Landscape Contractor Equipment (LCE) A Limited Warranty (see warranty periods below) Conditions and Products Covered 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.
