Form No. 3417-819 Rev B Z Master® Professional 7000 Series Riding Mower With 52in, 60in, or 72in TURBO FORCE® Side Discharge Mower Model No. 74266—Serial No. 401900000 and Up Model No. 74267—Serial No. 402100000 and Up Model No. 74274—Serial No. 402090000 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 residential homeowners or professional, hired operators.
Contents Model No. Safety ....................................................................... 4 General Safety ................................................... 4 Slope Indicator ................................................... 5 Safety and Instructional Decals .......................... 6 Product Overview ................................................... 14 Controls ........................................................... 14 Before Operation .................................................
Safety Servicing the Engine Oil.................................... 40 Fuel System Maintenance ................................... 44 Servicing the Fuel Filter and Water Seperator ...................................................... 44 Servicing the Fuel Tank..................................... 45 Electrical System Maintenance ........................... 46 Electrical System Safety ................................... 46 Servicing the Battery.........................................
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 a safe distance away from the battery. 2.
decal107-2114 107-2114 decal107-1860 107-1860 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 fully raised and locked position and wear the seat belt. Lower the roll bar only when absolutely necessary; do not wear the seat belt when the roll bar is down. 3. Read the Operator's Manual; drive slowly and carefully.
decal107-3963 107-3963 1. Cutting/dismemberment hazard, mower blade—do not carry passengers and keep bystanders away. 3. Thrown object 2. Cutting/dismemberment hazard—keep bystanders hazard of hand or foot, a safe distance away from mower blade—remove the the machine and keep the key from the key switch and deflector in place. read the instructions before servicing or performing maintenance; stay away from moving parts. 4.
decal107-7719 107-7719 1. Cutting/dismemberment hazard, fan and entanglement hazard, belt—stay away from moving parts. 2. Before starting the engine, clean grass and debris from the mower belt and pulleys, insert the key, and start the engine. decal107-3968 107-3968 1. Disengage 3. Parking brake 2. Engage decal107-9309 107-9309 1. Warning—read the Operator's Manual for information on charging the battery; contains lead; do not discard. 2. Read the Operator's Manual.
decal110-0820 110-0820 1. Fast 5. Warning—read the Operator's Manual. 2. Slow 6. Poison and caustic liquid/chemical burn hazard—keep children a safe distance away from the battery. 3. Neutral 7. Explosion hazard—no fire, open flames, or smoking; avoid sparks. 4. Reverse 8. To unlock the traction drive, turn the bypass valve 1 complete revolution counterclockwise using a 16 mm (5/8 inch) wrench. decal110-3852 110-3852 decal110-2067 110-2067 1.
decal114-9600 114-9600 1. Read the Operator's Manual. decal117-3848 117-3848 1. Thrown object hazard—keep bystanders a safe distance away from the machine. 2. Thrown object hazard, mower—do not operate the machine without the deflector, discharge cover, or grass collection system in place. 3. Cutting/dismemberment of hand or foot—stay away from moving parts; keep all guards and shields in place. decal115-4212 115-4212 1. Hydraulic-fliud level 3. Warning—do not touch the hot surface. 2.
decal127-0326 127-0326 3. Remove the key and read the Operator's Manual before performing maintenance or servicing the machine. 1. Read the Operator's Manual. decal121-7562 121-7562 1. Push to start 4. Variable speed control 2. Read the Operator’s Manual for more information on preheating the engine. 5. Fast 2. Height of cut 3. Slow decal126-2055 126-2055 1. Wheel lug nut torque 129 N∙m (95 ft-lb) (4x) 2. Wheel hub nut torque 319 N∙m (235 ft-lb) 3.
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.
Controls Product Overview Become familiar with all the controls before you start the engine and operate the machine. Control Panel g208514 Figure 4 g010363 Figure 5 1. Height of cut deck-lift pedal 7. Fuel cap 2. Parking-brake lever 8. Seat belt 2. Key switch 7. Engine-temperature light 3. Transport lock 9. Controls 3. Fuel-selector valve 4. Audible alarm 5. Glow-plug switch 8. Throttle control 9. PTO switch 4. Motion-control lever 5. Roll bar 6. Engine screen 1. Hour meter 10.
Audible Alarm The battery light turns on when the ignition is turned on and when the charge is below the correct operating level (Figure 6). This machine has an audible alarm that alerts the user to shut off the engine; otherwise, engine damage can occur from over heating. Refer to Cooling System Maintenance (page 52). Fuel-Selector Valve The fuel-selector valve is located behind the seat. Close the fuel-selector valve when transporting or storing the machine.
Operation • Note: Determine the left and right sides of the machine from the normal operating position. Before Operation • Before Operation Safety • General Safety • Never allow children or untrained people to • • • • • • • operate or service the machine. Local regulations may restrict the age of the operator. The owner is responsible for training all operators and mechanics. Become familiar with the safe operation of the equipment, operator controls, and safety signs.
Biodiesel Ready This machine can also use a biodiesel blended fuel of up to B20 (20% biodiesel, 80% petrodiesel). The petrodiesel portion should be low or ultra low sulfur. Observe the following precautions: • The biodiesel portion of the fuel meet specification ASTM D6751 or EN14214. • The blended fuel composition should meet ASTM D975 or EN590. • Painted surfaces may be damaged by biodiesel blends. • Use B5 (biodiesel content of 5%) or lesser blend in cold weather.
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 that 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. g000962 • Do not wear the seat belt when the roll bar is in the down position. Figure 8 1. Left fuel tank 2.
Using the Safety-Interlock System WARNING 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. g004954 Figure 9 1. Full-down position Understanding the Safety-Interlock System 2.
Unlatching the Seat operate as described below, have an Authorized Service Dealer repair the safety system immediately. 1. 2. 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 the NEUTRAL-LOCK position. Now start the engine. While the engine is running, disengage the parking brake, engage the blade-control switch (PTO), and rise slightly from the seat; the engine should shut off. 4.
During Operation • Never run an engine in an area where exhaust During Operation Safety • • General Safety • The owner/operator can prevent and is responsible • • • • • • • • • • • • • • • for accidents that may cause personal injury or property damage. Wear appropriate clothing, including eye protection; long pants; slip-resistant, substantial footwear; and hearing protection. Tie back long hair and do not wear loose jewelry. Use your full attention while operating the machine.
injury or death. The operator is responsible for safe slope operation. Operating the machine on any slope requires extra caution. Before using the machine on a slope, do the following: – Review and understand the slope instructions in the manual and on the machine. – Use an angle indicator to determine the approximate slope angle of the area. – Never operate on slopes greater than 15 degrees. – Evaluate the site conditions of the day to determine if the slope is safe for machine operation.
Engaging the Blade-Control Switch (PTO) Operating the Parking Brake Note: Engaging the blade-control switch (PTO) with the throttle position at half or less causes excessive wear to the drive belts. Always engage the parking brake when you stop the machine or leave it unattended. Engaging the Parking Brake Park the machine on a level surface.
Starting the Engine in Normal Weather Starting the Engine in Cold Weather (Below 23°F or -5°C) Important: Use starting cycles of no more than 30 seconds per minute to avoid overheating the starter motor. Use the correct engine oil for the starting temperature; refer to Servicing the Engine Oil (page 40). Note: Additional starting cycles may be required when starting the engine for the first time after the fuel system has been completely without fuel.
Using the Motion-Control Levers 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. g004532 Figure 25 1. Motion-control lever—NEUTRAL-LOCK position 4. Backward 2. Center, unlocked position 5. Front of machine 3.
Driving Backward WARNING The machine can spin very rapidly. You may lose control of the machine and cause personal injury or damage to the machine. 1. Move the levers to the center, unlocked position. 2. To go backward, slowly pull the motion-control levers rearward (Figure 27). • Use caution when making turns. • Slow the machine down before making sharp turns. Driving Forward Note: The engine shuts off when you move the traction-control with the parking brake engaged.
Using the Side Discharge Adjusting the Height of Cut The mower has a hinged grass deflector that disperses clippings to the side and down toward the turf. Adjust the height of cut from 38 to 127 mm (1-1/2 to 5 inches) in 6 mm (1/4 inch) increments by moving the clevis pin into different hole locations. 1. DANGER Without a grass deflector, discharge cover, or a complete grass-catcher assembly mounted in place, you and others are exposed to blade contact and thrown debris.
Adjusting the Anti-Scalp Rollers Whenever you change the height-of-cut, adjust the height of the anti-scalp rollers. 1. Park the machine on a level surface, disengage the blade-control switch, 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. g029957 Figure 31 Adjust the anti-scalp rollers as shown in Figure 29, Figure 30, and Figure 31. 1. Anti-scalp roller 4. Flange nut 2. Spacer 5. Bolt 3.
g027727 Figure 32 g005833 Figure 34 Positioning the Flow Baffle The following figures are only recommendations for use. Adjustments vary by grass type, moisture content, and the height of the grass. Position C Note: If the engine power draws down and the This is the full open position. The suggested use for this position is as follows: mower ground speed is the same, open up the baffle.
Operating with the Overheat Sensor more often in early spring. As the grass growth rate slows in mid summer, mow less frequently. If you cannot mow for an extended period, first mow at a high cutting height, then mow again 2 days later at a lower height setting. This machine has a sensor that turns off the mower deck when the engine overheats. When the engine overheats, the audible alarm and light alarm turns on along with the mower deck turning off.
Pushing the Machine by Hand After Operation After Operation Safety Important: Always push the machine by hand. Never tow the machine because hydraulic damage may occur. After Operation Safety Pushing the Machine General Safety • Clean grass and debris from the cutting units, 1. Park the machine on a level surface, disengage the blade-control switch, 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.
Changing to Machine Operation Transporting the Machine Rotate the bypass valves clockwise 1 turn to operate machine (Figure 37). 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.
1. If using a trailer, connect it to the towing vehicle and connect the safety chains. 2. If applicable, connect the trailer brakes and lights. 3. Lower the ramp, ensuring that the angle between the ramp and the ground does not exceed 15 degrees (Figure 38). 4. Back the machine up the ramp (Figure 39). g028043 Figure 39 1. Back the machine up the ramp. 2. Drive the machine forward down the ramp. 5. Shut off the engine, remove the key, and engage the parking brake. 6.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Check the engine cooling system level. • Adjust the mower belt tension (for 72-inch mowers only). • Check the hydraulic fluid. After the first 25 hours • Change the hydraulic filter. After the first 50 hours • Replace the engine oil. • Change the engine-oil filter. • Change the engine oil. After the first 100 hours • Check the wheel-hub slotted nut. • Change the gearbox oil.
Maintenance Service Interval Every 500 hours Yearly Maintenance Procedure • • • • Check the wheel-hub slotted nut. Adjust the caster-pivot bearing. Adjust the electric clutch. Change the hydraulic filter and hydraulic fluid when using Toro® HYPR-OIL™ 500 hydraulic fluid. • • • • Grease the front caster pivots (more often in dirty or dusty conditions). Lubricate the caster-wheel hubs. Change the gearbox oil. Change the engine coolant.
Lubrication Adding Grease Lubricate the grease fittings as shown on the Check Service Reference Aid decal (Figure 41). Greasing the Machine Grease more frequently when operating conditions are extremely dusty or sandy. Grease Type: No. 2 lithium or molybdenum grease 1. Park the machine on a level surface, disengage the blade-control switch, 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.
Greasing the Mower Deck and Belt Idlers Service Interval: Every 25 hours—Grease the mower deck and spindles. Grease with No. 2 lithium or molybdenum grease. Important: Make sure that the cutting-unit spindles are full of grease weekly. 1. Park the machine on a level surface, disengage the blade-control switch, 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 belt covers. 4.
Lubricating the Caster-Wheel Hubs 12. Insert the assembled nut and axle into the wheel on the side of the wheel with the new seal and bearing. Service Interval: Yearly 13. With the open end of the wheel facing up, fill the area inside the wheel around the axle full of general-purpose grease. 14. Insert the second bearing and new seal into the wheel. 15. Apply a thread-locking adhesive to the second spacer nut, and thread it onto the axle with the wrench flats facing outward. 16.
Engine Maintenance Engine Safety • Shut off the engine before checking the oil or adding oil to the crankcase. • Keep your hands, feet, face, clothing, and other body parts away the muffler and other hot surfaces. Servicing the Air Cleaner Note: Check the filters more frequently if operating conditions are extremely dusty or sandy. Removing the Air Filter Service Interval: Every 250 hours (more often in dirty or dusty conditions). 1.
g001061 Figure 47 Preparing to Service the Engine Oil Important: The fasteners for the front engine panel are designed to remain on the machine after cover removal. Loosen all of the fasteners a few turns so that the panel is loose but still attached, then go back and loosen them until the panel comes free. This prevents you from accidentally stripping the bolts free of the retainers. g001048 Figure 46 1. Air-filter body 3. Air-cleaner cover 2. Air filter 4.
Checking the Engine-Oil Level Important: Add the oil very slowly and do not block the opening of the filler hole (Figure 40). If you add oil too fast or block the hole, the oil could back up and foul the air intakes, causing engine damage. Service Interval: Before each use or daily Note: Check the oil when the engine is cold. 1. Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. 2.
Changing the Engine-Oil Filter Service Interval: After the first 50 hours Every 200 hours 1. Drain the oil from the engine; refer to Draining the Engine Oil (page 41). 2. Change the engine-oil filter (Figure 52). g032646 g032649 g032642 Figure 51 Note: Dispose of the used oil at a recycling center. g032644 Figure 52 3. 42 Add oil; refer to Adding Engine Oil (page 43).
Changing the Engine Oil Adding Engine Oil 1. Service Interval: After the first 50 hours Every 100 hours 1. Tilt the seat forward and remove the front engine panel (Figure 54). Start the engine and let it run for 5 minutes. Note: This warms the oil so it drains better. 2. Park the machine on a level surface. 3. Disengage the blade-control switch (PTO), move the motion-control levers to the NEUTRAL-LOCK position, and engage the parking brake. 4.
Fuel System Maintenance WARNING Fuel-system components are under high pressure. The use of improper components can result in system failure, fuel leakage, and possible explosion. Use only approved fuel lines and fuel filters. Servicing the Fuel Filter and Water Seperator g001163 Figure 56 1. Engine oil Service Interval: Every 40 hours—Drain the water separator. 2. Funnel and hose Every 400 hours/Yearly (whichever comes first)—Replace the fuel filter (more often in dirty or dusty conditions).
g007169 Figure 58 1. Drain valve 2. Water separator 3. Back of machine Changing the Fuel Filter Never install a dirty fuel filter if it is removed from the fuel line. 1. Allow the machine to cool down. 2. Park the machine on a level surface, disengage the blade-control switch, and engage the parking brake. 3. g007697 Figure 59 1. Fuel filter 2. Hose clamp Shut off the engine, remove the key, and wait for all moving parts to stop before leaving the operating position. 4. Left side of machine 5.
Electrical System Maintenance WARNING Incorrectly removing the cables from battery could damage the machine and cables, causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. Electrical System Safety • Disconnect the battery before repairing the • Always disconnect the negative (black) battery cable before disconnecting the positive (red) cable. machine. Disconnect the negative terminal first and the positive last.
Installing the Battery Note: Position the battery in the tray with the terminal posts opposite from the hydraulic tank. g000960 Figure 62 1. Positive battery post 3. Red (+) charger lead 2. Negative battery post 4. Black (-) charger lead Servicing the Fuses The electrical system is protected by fuses. It requires no maintenance, however, if a fuse blows check component/circuit for malfunction or short. 1. Unlatch the engine hood and raise the engine hood to gain access to fuse holder (Figure 63). 2.
Drive System Maintenance Adjusting the Tracking The machine has a knob for adjusting the tracking located under the seat. Important: Adjust the handle neutral and hydraulic pump neutral before adjusting the tracking; refer to Adjusting the Control Handle Neutral Position (page 58) and Setting the Hydraulic Pump Neutral Position (page 62). 1. Push both control levers forward the same distance. 2. Check if the machine pulls to 1 side. If it does, shut off the machine and engage the parking brake. 3.
Checking the Wheel-Hub Slotted Nut Service Interval: After the first 100 hours—Check the wheel-hub slotted nut. Every 500 hours—Check the wheel-hub slotted nut. Torque the slottled nut to 286 to 352 N∙m (211 to 260 ft-lb). Note: Do not use anti-seize compound on the wheel hub. Adjusting the Caster-Pivot Bearing g001297 Figure 66 Service Interval: Every 500 hours/Yearly (whichever comes first) 1.
Adjusting the Electric Clutch Service Interval: Every 500 hours The clutch is adjustable to ensure proper engagement and proper braking. 1. Park the machine on a level surface, disengage the blade-control switch, 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. Unlatch the seat and tip it forward. 4. Loosen the front engine panel knobs and remove the panel. 5.
g007166 Figure 69 1. Clutch 2. 2 bolts and nuts for clutch strap 4. Clutch center bolt 5. Electrical connection 3. Rubber clutch strap 9. Insert a 0.381 to 0.533 mm (0.015 to 0.021 inch) feeler gauge through an inspection slot in the side of the assembly (Figure 70). Note: Make sure that it is between the armature and the rotor friction surfaces. 10. Tighten the locknuts until there is slight binding on the feeler gauge but it can be moved easily within the air gap (Figure 70). 11.
Cooling System Maintenance Note: Do not open the radiator cap. Doing this may induce air into the cooling system. Servicing the Cooling System DANGER Discharge of hot pressurized coolant or touching hot radiator and surrounding parts can cause severe burns. • Do not remove the radiator cap when the engine is hot. Always allow the engine to cool at least 15 minutes or until the radiator cap is cool enough to touch without burning your hand before removing the radiator cap. 1.
Cleaning the Hydraulic-Fluid Cooler and Radiator Screen Brake Maintenance Service Interval: Before each use or daily Adjusting the Parking Brake Before each use, check and clean the radiator screen and oil cooler. Remove any buildup of grass, dirt or other debris from the oil cooler and radiator screen with compressed air (Figure 72). Service Interval: Every 25 hours Every 200 hours 1. Engage the parking brake. 2. Measure the length of the spring (Figure 73).
Belt Maintenance Inspecting the Belts Service Interval: Every 100 hours 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. Replace the mower belt if any of these conditions are evident. Replacing the Mower Belt Squealing when the belt is rotating, blades slipping when cutting grass, frayed belt edges, burn marks and cracks are signs of a worn mower belt.
8. While holding the belt tension and spring length, tighten the idler plate bolts that secure the idler plate (Figure 77). g006535 Figure 76 g006478 1. Belt cover 2. Latch 3. Insert slot into the tab Figure 77 Adjusting the Mower Belt Tension Service Interval: After the first 8 hours Important: To ensure proper mower belt tension, which will result in a longer belt life, check the mower belt tension after the 8 hours and every 8 hours, thereafter.
Replacing the PTO-Drive Belt Service Interval: Every 50 hours—Check the PTO-drive belt. 1. Park the machine on a level surface, disengage the blade-control switch, 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. Loosen the front engine panel knobs and remove the panel (Figure 78). g007176 Figure 79 1. Gearbox 2. Spring 4. Clutch 5. Rubber clutch stop 3. Spring-loaded idler pulley 6.
g007177 Figure 80 1. Clutch 2. Pump drive belt 3. Spring g001295 Figure 81 4. Spring-loaded idler pulley 1. Oil cooler shield 3. Engine straps 2. Bolts Replacing and Tensioning the Alternator Belt 5. Remove the 4 bolts holding the oil cooler and position the oil cooler to the side (Figure 82). 6. Remove the 2 bolts holding the fan and fan plate to the machine (Figure 82). Replacing the Alternator Belt Service Interval: Every 50 hours—Check the alternator belt. 1.
12. Install the oil cooler shield and engine straps to the rear frame with the 4 bolts previously removed (Figure 81). 13. Install the engine straps to the side of the machine (Figure 81). 14. Tighten the bottom bolt and install the upper bolt holding the alternator and cover (Figure 83). Controls System Maintenance Adjusting the Control Handle Neutral Position If the motion-control levers do not align or move easily into the console notch, adjust the levers.
9. Hydraulic System Maintenance While applying slight rearward pressure on the motion-control lever, turn the head of the adjustment bolt in the appropriate direction until the control lever is centered in the NEUTRAL-LOCK position (Figure 85). Hydraulic System Safety Note: Keeping rearward pressure on the lever keeps the pin at the end of the slot and allows the adjustment bolt to move the lever to the appropriate position. • Seek immediate medical attention if fluid is injected 10.
5. If there is no fluid, add fluid to the reservoir until it reaches the cold level of the baffle. 6. Run the machine at low idle for 15 minutes to allow any air to purge out of the system and warm the fluid; refer to Starting the Engine in Normal Weather (page 24). Replacing the Hydraulic Filter and Fluid Service Interval: After the first 25 hours Every 250 hours—Change the hydraulic filter and hydraulic fluid when using Mobil® 1 fluid.
g001313 g001043 Figure 88 1. Right hydraulic line Figure 89 3. Hydraulic tank 1. Hydraulic filter 2. Hydraulic filter 7. Apply a thin coat to the rubber gasket on the replacement filter (Figure 89). 8. Install the replacement hydraulic filter onto the filter adapter. Bleeding the Hydraulic System The traction system is self-bleeding; however, it may be necessary to bleed the system if fluid is changed or after work is performed on the system. Note: Do not tighten. 9. 3. Adapter 2.
Setting the Hydraulic Pump Neutral Position Note: The wheel must stop turning or slightly creep in reverse. 4. Note: Adjust the handle neutral first. That needs Open the throttle to FAST . Note: Make sure that the wheel remains stopped or slightly creeps in reverse; adjust if necessary. to be correct before you can make the following adjustment. This adjustment must be made with drive wheels turning. DANGER Mechanical or hydraulic jacks may fail to support the machine and cause a serious injury.
Setting the Left Hydraulic Pump Neutral Position 1. Loosen the locknuts at the ball joints on the pump control rod (Figure 91). 2. Start the engine, open the throttle 1/2 way and disengage parking brake; refer to Disengaging the Parking Brake (page 23). WARNING The electrical system does not perform proper safety shut off with the jumper wire installed. • Remove the jumper wire from the wire harness connector and plug the connector into the seat switch when you complete the adjustment.
Mower Deck Maintenance Leveling the Mower Side-to-Side 1. Position the right blade side-to-side (Figure 92). Leveling the Mower at 3 Positions Important: There are only 3 measuring positions needed to level the mower. Setting Up the Machine 1. Park the machine on a level surface, disengage the blade-control switch, 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.
g001040 g001041 Figure 93 1. Rear chain 5. Adjustment bolt 2. Rear-support arm 6. Front swivel 3. Bolt 7. Front-support arm Figure 94 1. Measure here from blade to hard surface 4. Jam nut 8. Loosen the jam nut under the rear-support arm and adjust the adjustment bolt to get a measurement of 80 to 83 mm (3-1/8 to 3-1/4 inches); refer to Figure 93. Note: It is recommended that both sides of the mower are adjusted the same distance. 9. 10.
Adjusting the Compression Spring 1. Raise the mower lift lever to the transport position. 2. Check the distance between the 2 large washers, it needs to be 28.2 cm (11-1/8 inches) for 52 inch mower decks, 26.7 cm (10-1/2 inches) for 60 inch mower decks, or 29.2 cm (11-1/2 inches) for 72 inch mower decks (Figure 95). Servicing the Cutting Blades Maintain sharp blades throughout the cutting season because sharp blades cut cleanly without tearing or shredding the grass blades.
Note: The difference between the dimensions obtained in steps 4 and 6 must not exceed 3 mm (1/8 inch). Note: If this dimension exceeds 3 mm (1/8 inch), the blade is bent and must be replaced. WARNING A blade that is bent or damaged could break apart and could seriously injure or kill you or bystanders. g006530 Figure 96 1. Cutting edge 3. Wear/slot forming 2. Curved area 4. Crack • Always replace a bent or damaged blade with a new blade.
Installing the Blades Sharpening the Blades 1. 1. Use a file to sharpen the cutting edge at both ends of the blade (Figure 99). Install the blade onto the spindle shaft (Figure 101). Note: Maintain the original angle. Important: The curved part of the blade Note: The blade retains its balance if the same must be pointing upward toward the inside of the mower to ensure proper cutting. amount of material is removed from both cutting edges. 2. Install the spring disk and blade bolt (Figure 101).
Replacing the Grass Deflector WARNING An uncovered discharge opening could allow the machine to throw objects toward you or bystanders, resulting in serious injury. Also, contact with the blade could occur. • Never operate the machine unless you install a cover plate, a mulch plate, or a grass chute and catcher. • Make sure that the grass deflector is in the down position. 1. g002519 Figure 102 Remove the locknut, bolt, spring and spacer holding the deflector to the pivot brackets (Figure 102). 2.
Cleaning Storage Cleaning under the Mower Deck Storage Safety • Shut off the engine, remove the key, wait for all Service Interval: Before each use or daily 1. 2. 3. moving parts to stop, and allow the machine to cool before storing it. Do not store the machine or fuel near flames or drain the fuel indoors. Remove the key and store it in a safe place out of the reach of children. • Park the machine on a level surface, disengage the blade-control switch (PTO), and engage the parking brake.
A. Run the engine to distribute conditioned fuel through the fuel system for 5 minutes. B. Shut off the engine, allow it to cool, and drain the fuel tank; refer to Servicing the Fuel Tank (page 45). Note: Start the engine and run it until it shuts off. C. Dispose of fuel properly. Recycle as per local codes. Important: Do not store stabilizer/conditioned fuel longer than the duration recommended by the fuel-stabilizer manufacturer. 6. Check and tighten all bolts, nuts, and screws.
Troubleshooting Problem The starter does not crank. The engine does not start, starts hard, or fails to keep running. Possible Cause 1. The blade-control switch (PTO) is engaged. 1. Move the blade-control switch (PTO) to disengaged. 2. The parking brake is not engaged. 3. The drive levers are not in the NEUTRAL-LOCK position. 4. You are not in the operator’s seat. 5. The battery is dead. 6. The electrical connections are corroded or loose. 7. The fuse is blown. 8. The relay or switch is broken. 2.
Problem There is abnormal vibration. Mowing is resulting in uneven cutting height. Possible Cause 1. The cutting blade(s) is/are bent or unbalanced. 1. Install new cutting blade(s). 2. The blade mounting bolt is loose. 3. The engine mounting bolts are loose. 4. The engine pulley, idler pulley, or blade pulley is loose. 5. The engine pulley is damaged. 6. The blade spindle is bent. 7. The motor mount is loose or worn. 2. Tighten the blade mounting bolt. 3. Tighten the engine mounting bolts. 4.
Schematics g260151 119-0353 (Rev.
Notes:
