Form No. 3374-336 Rev A Groundsmaster® 5900 and 5910 Rotary Mower Model No. 31598N—Serial No. 313000001 and Up Model No. 31599N—Serial No. 313000001 and Up To register your product or download an Operator's Manual or Parts Catalog at no charge, go to www.Toro.com.
WARNING CALIFORNIA Proposition 65 Warning Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm. Because in some areas there are local, state, or federal regulations requiring that a spark arrester be used on the engine of this machine, a spark arrester is incorporated with the muffler assembly. Genuine Toro spark arresters are approved by the USDA Forestry Service.
Contents Air Cleaner Maintenance .................................... 45 Servicing the Engine Oil ..................................... 46 Adjusting the Valve Clearance............................. 47 Fuel System Maintenance ....................................... 48 Servicing the Fuel System ................................... 48 Servicing the Water Separator ............................. 48 Replacing the Fuel Filter ..................................... 49 Electrical System Maintenance...................
Safety Cleaning the Air Conditioning Coil ..................... 68 Cleaning the A/C Condenser Screen ................... 68 Storage....................................................................... 69 Preparing for Seasonal Storage............................ 69 Schematics ................................................................. 70 This machine meets or exceeds ISO standard 5395:1990 and ANSI B71.4-2004 specifications in effect at the time of production.
Preparation • While mowing, always wear substantial footwear, long trousers, hard hat, safety glasses, and ear protection. Long hair, loose clothing or jewelry may get tangled in moving parts. Do not operate the equipment when barefoot or wearing open sandals. • Thoroughly inspect the area where the equipment is to be used and remove all objects which may be thrown by the machine. • Warning–fuel is highly flammable.
throttle switch to the low idle position, stop engine and remove ignition key. Wait for all movement to stop before adjusting, cleaning or repairing. • Stop the engine and disengage drive to attachment: – before refuelling; – before making height adjustment unless adjustment can be made from the operators position. • Reduce the throttle setting before stopping engine and, if the engine is provided with a fuel shut-off valve, turn the fuel off at the conclusion of mowing.
Operation • Before operating the machine be certain that the seat belts are attached. • For operating environments exceeding 110 degrees F (43 degrees C), consult Toro for special machine needs. • Know how to stop the machine and engine quickly. • Do not operate the engine below 1350 rpm. • Do not operate the machine while wearing tennis shoes or sneakers. Maintenance and Storage • Do not touch equipment or attachment parts which may be hot from operation.
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. 114-0134 1. Disengage the power take-off (PTO) 4. Engine—stop 2. Engage the power take-off (PTO). 5. Engine—run/preheat 3. Read the Operators Manual. 6. Engine—start 114-0846 1.
114-0135 1. Raise cutting units—left 3. Raise cutting units—right 2. Raise cutting units—center 114-0848 1. High range 6. Low idle 2. Transmission 7. Increase engine speed 3. Low range 8. Engine 4. High idle 5. Mid idle 114-0844 1. Left hand turn signal 4. To lock the brakes, close latch, press the brake pedal and pull up on the parking brake knob. 2. Right hand turn signal 5. To unlock the parking brake, press the brake. 3. Read the Operators Manual. 6. Parking brake 9 9.
120-6604 1. Thrown object hazard—keep bystanders away from the machine. 2. Cutting/dismemberment hazard of hand, mower blade—stay away from moving parts, keep all guards and shields in place. 3. Cutting/dismemberment hazard of foot, mower blade—stay away from moving parts, keep all guards and shields in place. 114-0847 1. Read the Operator’s Manual.
0-6007 1. Read the Operator's manual for fuse information. 114-0133 1. Headlights 7. Flow divider—engage 2. On 8. Flow divider—disengage 3. Off 9. Lower cutting units—left 4. Headlight switch location 5. Cruise control—engage 10. Lower cutting units—center 11. Lower cutting units—right 114-0163 6. Cruise control—disengage 1. Read the Operator's Manual for information on fuses. 2. Cab, 60A fuse 3. Controllers, 60A fuse 4. Main power, 60A fuse 93-7818 115-5459 1.
114-0975 1. Height-of-cut 114-0922 114-4883 114-0922 1. Belt routing 1. Belt routing 114-0974 1.
117–2754 1. Warning—read the Operator's Manual. 2. Warning—do not operate this machine unless you are trained. 3. Warning—wear the seat belt when seated in the operator's position. 4. Warning—wear hearing protection. 5. Thrown object hazard—keep bystanders a safe distance from the machine. 6. Cutting hazard of hand or foot—stay away from moving parts; keep all guards in place. 7. Tipping hazard—lower the cutting unit when driving down slopes; slow machine before turning, do not turn at high speeds 8.
115-5489 (Model 31599 only) 1. Warning—when the cab windows are open wear hearing protection. 2. Close the rear window before attempting to open the hood. 114-0865 1. Height of cut adjustment Battery Symbols Some or all of these symbols are on your battery 114-9600 1. Read the Operator's Manual. 117–2718 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.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description Qty. Use 1 No parts required – Remove the side deck straps and brace 2 Deck cover R.H. Deck cover L.H. V-Belt 1 1 2 Lower the front deck winglets No parts required – Level the front center deck No parts required – Level winglet decks to front center deck No parts required – Check the Tire Pressure No parts required – Check Fluid Levels No parts required – Grease the machine.
1 Remove Side Deck Shipping Strap and Brace No Parts Required Procedure Remove the strap and brace securing the side decks for shipping. 2 Figure 3 Lower Front Deck Winglets Parts needed for this procedure: 1 Deck cover R.H. 1 Deck cover L.H. 2 V-Belt 1. Winglet 4. Eccentric 2. Hinge pin 5. Upper hole 3. Stop bolt 6. Deck mounts 4. Install the front and rear stop bolts through the upper mounting holes and eccentrics. Make sure the stop bolt engages the tab on the hinge pin. 5.
Note: Make sure to slide the cover under the front center deck cover tabs before inserting it onto the mounting hooks and post. 9. Repeat the procedure on the other winglet. Figure 6 Figure 4 1. Cover 1. Winglet 4. Eccentric 2. Hinge pin 5. Lower hole 2. Rubber latch 3. Front center deck cover tabs 4. Mount hooks 3. Bolt 3 7. Install the winglet belts as follows: • Start the belt around the winglet spindle pulley and the front deck spindle pulley (Figure 5).
4 Level Winglet Decks to Front Center Deck No Parts Required Procedure Figure 8 Level the winglet decks to the front deck as follows: 1. Eccentric notch • Rotate the blade on each winglet so that it points side to side. • Tighten the bolt and nut for this eccentric to 110 ft-lb (149 N-m). • Loosen the bolts and nuts securing the two eccentric spacers to the winglets (Figure 7). • Adjust the forward eccentric until it just makes contact with the inner slot surface of the winglet pivot brackets.
Product Overview Controls Note: Determine the left and right sides of the machine from the normal operating position. CAUTION This machine produces sound levels in excess of 85 dBA at the operators ear and can cause hearing loss through extended periods of exposure. Figure 9 Wear hearing protection when operating this machine. Traction Pedal 6 No Parts Required The traction pedal (Figure 10) controls forward and reverse operation.
Lift Switches traveling at a very slow speed, less than 2 mph, to shift to Hi or Lo. The lift switches (Figure 11) raise and lower the cutting units. Press the switches forward to lower the cutting unit and backward to raise the cutting units. Horn Button Press the horn button (Figure 10) to activate the horn. Note: The decks will not lower while in the Hi speed range. and the decks will not raise or lower if the operator is out of the seat when the engine is running.
Cruise Control Switch The cruise control switch (Figure 11) sets the speed of the machine. Pressing the rear of the switch turns off the cruise control, the middle position of the switch enables the cruise control function and the front of the switch sets the desired ground speed. Note: Pressing either brake pedal or moving the traction pedal into the reverse position, for one second, will also disengage the cruise control. Light Switch Press the lower edge of the switch (Figure 11) to turn on the lights.
Cab Controls Model 31599 only Wind Shield Wiper Switch Press front of switch to activate the wind shield wipers (Figure 13) and rear of switch to turn off the wipers. Air Conditioning Switch Press front of switch to activate the air conditioning (Figure 13) and rear of switch to turn off the air conditioning. Figure 14 1. Wind shield latch Fan Control Rotate the fan control knob to regulate the speed of the fan (Figure 13). Rear Window Latch Lift up on latches to open the rear window.
Info Center 4. Cruise Control Engaged 5. H/L (Hi/Low speed range) Screen Functions Bottom Left Corner-Air Intake Heater Active • Press the corresponding button to view screen 1 or screen 2, to stop audible alarm, to view fault screen or to exit (Figure 15). Bottom Middle-Traction Assist Engaged Bottom Right-Machine Hours • If a fault appears on the screen, press any key to view the active fault advisory. Contact your supervisor or mechanic to relay fault advisory and determine course of action.
Figure 16 1. Engine coolant temperature indicator 2. 3. 4. 5. Figure 17 6. Fan reverse indicator Fuel indicator 7. PTO indicator 8. Air intake heater indicator 9. Parking brake indicator 10. Traction assist indicator Cruise control indicator Machine hours indicator H / L (Hi / Low) indicator 1. Tachometer 3. Battery voltage 2. Hydraulic oil temperature 4. Service due Tachometer This display shows the engine operating speed in RPM (Figure 17).
Alarm (InfoCenter) Advisories The InfoCenter's alarm sounds when: Advisories provide the operator additional information to operate certain functions on the machine (Figure 19).
Fuel Level For Traction Assist Add fuel 1. Must be in low range 2. Operator must be seated To Engage PTO 1. 2. 3. 4. 5. 6. Solve engine fault Let engine warm up Let hydraulic oil warm Lower decks Must be in low range Operator must be seated Traction Derate Due To 1. Requires service 2. Engine or hydraulics too hot 3. Traction pedal sensor needs calibration 4. Reserved 1 5. Reserved 2 To Set High Range 1. 2. 3. 4. 5. 6. 6.
Specifications Note: Specifications and design are subject to change without notice.
Operation WARNING Fuel is harmful or fatal if swallowed. Long-term exposure to vapors can cause serious injury and illness. Note: Determine the left and right sides of the machine from the normal operating position. • Avoid prolonged breathing of vapors. CAUTION • Keep face away from nozzle and gas tank or conditioner opening. This machine produces sound levels in excess of 85 dBA at the operators ear and can cause hearing loss through extended periods of exposure.
Important: Maintain pressure in all tires to ensure a good quality-of-cut and proper machine performance. Do not under-inflate. Check the air pressure in all the tires before operating the machine. or container opening at all times until fueling is complete. DANGER In certain conditions, fuel is extremely flammable and highly explosive. A fire or explosion from fuel can burn you and others and can damage property. • Fill the fuel tank outdoors, in an open area, when the engine is cold.
2. Position the castor wheel axles in the same holes in all castor forks. Refer to the chart (Figure 22) to determine the correct holes for the setting. Figure 23 Figure 22 1. Castor arm height of cut mounting holes 3. Castor fork height of cut spacers 1. Tensioning cap 4. Top axle mounting hole 2. Spacers (4) 5. Castor wheel 3. Shims (2 top & 2 bottom 2. Castor fork height of cut mounting holes 5.
determine the correct holes for the height of cut setting. 6. Mount the height-of-cut chains to the desired height-of-cut hole (Figure 25) with the clevis pin and hairpin cotter. Figure 27 Figure 25 Note: When operating at 2-1/2 inch (64 mm) height of cut or higher, the axle bolt should be installed in the bottom castor fork hole to prevent grass buildup between the wheel and the fork.
Adjusting the Roller spacers onto the shaft. Install the tensioning cap to secure the assembly. 1. Remove the screw and nut securing the roller shaft to the deck bracket (Figure 30). Adjusting the Skids The skids should be mounted in the lower position when operating at heights of cut greater than 2-1/2 inches (64 mm) and in the higher position when operating at heights of cut lower than 2-1/2 inches (64 mm).
Checking the Mismatch Between Cutting Units compare. These numbers should be within 1/8 inch (3 mm) of each other. Make no adjustment at this time. Due to differences in grass conditions and the counterbalance setting of the traction unit, it is advised that grass be cut and appearance checked before formal cutting is started. 2. Position blade side to side on inside spindle of side cutting unit and corresponding outside spindle of front cutting unit.
Figure 34 1. Side view mirrors 2. Rear view mirror Figure 32 1. Tensioning cap 4. Top axle mounting hole 2. Spacers (4) 5. Castor wheel 3. Lever Aiming the Headlights 3. Shims (2 top and 2 bottom) 1. Loosen the mounting nuts and position each headlight so that it points straight ahead. Tighten the mounting nut just enough to hold the headlight in position. 2. Place a flat piece of sheet metal over the face of the headlight. 3. Mount a magnetic protractor onto the plate.
Pushing or Towing the Machine When the temperature is below 20°F (-75°C), let the machine warm up for a minimum of 10 minutes. 5. To stop the engine, set the throttle switch to low idle, move the PTO switch to the Off position, set the parking brake, and rotate the ignition key to Off. Remove the key from the switch to prevent accidental starting. In an emergency, the machine can be moved forward by actuating the bypass valves in the variable displacement hydraulic pump and pushing or towing the machine.
Jacking Points 4. To disengage the tow valves, loosen the jam nuts, thread the bypass stems all the way out and tighten the jam nuts. • On the front of the machine on the frame on the inside of each drive tire (Figure 37). 5. Make sure to close the bypass valves before starting the engine. However, do not exceed 5 to 8 ft-lb (7 to 11 N⋅m) torque to close the valves. Important: Using the tow option bypasses high pressure relief valves.
Tie Downs Operating Characteristics • Under the front of the operator's platform (2 places) (Figure 39). Practice driving the machine because it has a hydrostatic transmission and its characteristics are different than many turf maintenance machines. Some points to consider when operating the traction unit, cutting unit, or other implements are the transmission, engine speed, load on the cutting blades or other implement components, and the importance of the brakes.
WARNING G010392 This product is designed to drive objects into the ground where they lose energy quickly in grass areas. However, careless operation, combined with terrain angle, ricochets, or improperly positioned safety guard can lead to thrown object injuries. • When a person or pet appears suddenly in or near the mowing area, stop mowing. • Do not resume mowing until the area is cleared. Before stopping the engine, disengage all controls and move the throttle to the slowest position.
Operating Tips Select the Proper Height-of-Cut Setting to Suit Conditions Remove approximately 1 inch (25 mm) or no more than 1/3 of the grass blade when cutting. In exceptionally lush and dense grass, you may have to raise the height-of-cut to the next setting. Figure 44 1. Transport latch After Operating To ensure optimum performance, clean the underside of the mower housing after each use. If residue is allowed to build up in the mower housing, cutting performance will decrease.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 10 hours • • • • After the first 250 hours • Adjust the valve clearance • Change the front planetary gear oil. Before each use or daily • • • • • • • • Torque the wheel lug nuts. Check the alternator belt tension. Check the compressor belt tension.
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.
Premaintenance Procedures Inner Wing Deck Covers Removal 1. Lower the wing deck onto a level surface. 2. Disengage the cover latch. 3. Remove the bolt securing the belt cover, if so equipped. Figure 48 4. Lift the rear and inside cover edges off the mounting posts (Figure 46). 1. Slide cover out between lift arm and roller Installation 1. Lower the wing deck onto a level surface. 2. Slide the cover into position by guiding the rear edge between the lift arm and roller. 3.
Lubrication The grease fitting locations and quantities are: Traction Unit Greasing the Bearings and Bushings • Impact arms (2) (Figure 49) • Front Deck Lift cylinder pivots (2) (Figure 49) Service Interval: Before each use or daily—Lubricate castor arm bushings. • Side Deck Lift cylinder pivots (2) (Figure 49) • Steering cylinder ball joints (4) (Figure 50) Every 50 hours—Lubricate all grease fittings.
Figure 50 Figure 53 Front Lift Assemblies • Lift arm bushings (2) (Figure 54) • Lift arm ball joints (2) (Figure 54) • Front Deck Lift cylinder pivots (2) (Figure 54) Figure 51 Figure 54 Figure 52 Side Cutting Units (per side) • Castor fork shaft bushing (4) (Figure 55) Front Cutting Unit • Castor fork shaft bushings (2) (Figure 53) • Spindle shaft bearings (3 each) (located on spindle housing) (Figure 55) • Spindle shaft bearings (5) (located on spindle housing) (Figure 53) • Idler arm pivot bushi
Engine Maintenance Air Cleaner Maintenance • Check the air cleaner body for damage which could cause an air leak. Replace if damaged. Check the whole intake system for leaks, damage or loose hose clamps. • Service the air cleaner filter only when the service indicator requires it. Changing the air filter before it is necessary only increases the chance of dirt entering the engine when the filter is removed. • Be sure the cover is seated correctly and seals with the air cleaner body.
Servicing the Engine Oil Checking the Engine Oil Level Service Interval: Before each use or daily—Check the engine oil level. The engine is shipped with oil in the crankcase; however, the oil level must be checked before and after the engine is first started. The crankcase capacity is 8.5 qt (8.04 l) with the filter. Use high-quality engine oil that meets the following specifications: Figure 57 1. Air cleaner indicator 4. Air cleaner primary filter 2. Air cleaner latch 3. Air cleaner body 5.
Figure 61 1. Engine oil drain plug Figure 59 1. Oil filter 2. Remove the oil filter (Figure 59). Apply a light coat of clean oil to the new filter seal before screwing it on. Do not overtighten. 2. Dipstick 3. Add oil to the crankcase; refer to Checking the Engine Oil. 3. If the oil is below the Low mark, remove the fill cap (Figure 60) and add oil until the level reaches the Full mark. Do not overfill.
Draining the Water Separator Fuel System Maintenance 1. Place a clean container under the water separator (Figure 62). 2. Open the drain plug and operate the pump to drain off contaminates (Figure 62). Servicing the Fuel System DANGER Under certain conditions, diesel fuel and fuel vapors are highly flammable and explosive. A fire or explosion from fuel can burn you and others and can cause property damage.
10. Connect the water sensor (electrical connector) from the bottom of the water separator. 11. With the vent plug still loosened, operate the primer pump until fuel purges at the vent plug. Close the vent plug, start the engine and check for leaks. Correct as necessary with the engine off. Replacing the Fuel Filter Service Interval: Every 500 hours—Replace the fuel filter element 1. Clean the area around the fuel filter head (Figure 63). Figure 64 1. Fuel filter 3. Water Separator 2. Banjo fitting 4.
Electrical System Maintenance WARNING If installing an auxiliary accessory to the machine, the only approved locations to source power are the traction unit fuse block (Figure 68) or the cab fuse block (Figure 70). A maximum of 10 amps is available from either location. Contact your local Toro distributor for assistance. Note: Make sure the key is off and removed from the switch before removing fuses. Fuses Figure 67 The traction unit fuses (Figure 68) are located in the power center console (Figure 67).
engine, InfoCenter and machine controllers must be disconnected before welding on the machine. The cab fuses are located in the fuse box on the cab headliner (Figure 70). Note: Check the battery condition weekly or after every 50 hours of operation. Keep the terminals and the entire battery case clean because a dirty battery will discharge slowly. To clean the battery, wash the entire case with a solution of baking soda and water. Rinse with clear water.
Drive System Maintenance Adjusting the Traction Pedal Angle The traction pedal operating angle can be adjusted for operator comfort. Figure 72 1. Check/drain plug (3 o'clock position) 1. Loosen the two nuts and bolts securing the left side of the traction pedal to the bracket (Figure 71). 2. Remove the check plug on the planetary (Figure 72) and on the brake housing (Figure 73). Gear oil should be within 1/8 inch of the check plug on the brake housing and the planetary. Figure 71 1. Traction pedal 2.
Figure 74 1. Check/drain plug (lowest position) 2. Place a drain pan under the hub, remove the plug, and allow the oil to drain. Figure 75 1. Center to center distance 3. Place a drain pan under the brake housing on the other side of the wheel (Figure 73). 2. Tie rod clamps 4. Remove the plug from the bottom of the housing and allow the oil to drain. 2. To adjust, loosen the clamps at both ends of the tie rods (Figure 75). 5. When all of the oil has drained, install the plug in the housing. 3.
Cooling System Maintenance DANGER The rotating fan and drive belt can cause personal injury. • Do not operate the machine without the covers in place. CAUTION Discharge of hot pressurized coolant or touching hot radiator and surrounding parts can cause severe burns. • Keep fingers, hands and clothing clear of rotating fan and drive belt. • Shut off the engine and remove the ignition key before performing maintenance. • Do not remove the radiator cap when the engine is hot.
Brake Maintenance Servicing the Engine Cooling System Adjusting the Service Brakes Service Interval: Every 100 hours—Inspect the cooling system hoses. Adjust the service brakes when there is more than 2 inches (50 mm) of “free travel” of the brake pedal, or when the brakes do not work effectively. Free travel is the distance the brake pedal moves before braking resistance is felt. Every 2 years—Flush the cooling system and replace fluid.
Belt Maintenance Replacing the Blade Drive Belts Servicing the Alternator Belt Service Interval: Every 50 hours—Inspect the blade drive belts. Service Interval: After the first 10 hours—Check the alternator belt tension. Every 1,000 hours—Replace the drive blade belts Every 1,000 hours—Check the alternator belt tension. Servicing the Compressor Belt The blade drive belt, tensioned by the spring loaded idler pulley, is very durable. However, after many hours of use, the belt will show signs of wear.
4. Remove the bolts securing the hydraulic motor to the cutting unit (Figure 81). Lift the motor off of the cutting unit and lay it on top of the cutting unit. to release the belt tension and allow the belt to be slipped off the pulleys. Figure 81 1. Hydraulic motor 2. Mounting bolts Figure 83 5. Remove the old belt from around the spindle pulleys and idler pulley. 1. Idler pulleys 6. Route the new belt around the spindle pulleys and idler pulley assembly as shown in Figure 82. 4.
Hydraulic System Maintenance Checking the Hydraulic Fluid Service Interval: Before each use or daily—Check the hydraulic fluid level. Figure 85 Left side deck The machines reservoir is filled at the factory with approximately 19 U.S. gallons (71.9 l) of high quality hydraulic fluid. Check the level of the hydraulic fluid before the engine is first started and daily thereafter. The recommended replacement fluid is: Toro Premium All Season Hydraulic Fluid (Available in 5 gallon pails or 55 gallon drums.
Note: Many hydraulic fluids are almost colorless, making it difficult to spot leaks. A red dye additive for the hydraulic system oil is available in 2/3 oz (20 ml) bottles. One bottle is sufficient for 4-6 gallons (15-22 1) of hydraulic oil. Order part no. 44-2500 from your authorized Toro distributor. Note: If ambient operating temperatures exceed 110° F, contact Toro for fluid recommendations. 1. Position the machine on a level surface, lower the cutting units, stop the engine, and remove the key.
Changing the Hydraulic Fluid and Filters Service Interval: Every 1,000 hours—Change the hydraulic fluid and filters. Change the 2 hydraulic filters and the hydraulic fluid after every 1000 operating hours, in normal operating conditions. If the fluid becomes contaminated, contact your local Toro distributor because the system must be flushed. Contaminated fluid looks milky or black when compared to clean oil. Figure 89 1. Yellow plunger Use Toro replacement filters (Part No.
Mower Maintenance Important: Use only the hydraulic fluids specified. Other fluids could cause system damage. Pivoting (Tilting) the Front Cutting Unit Upright 8. Install the reservoir cap. Start the engine and use all of the hydraulic controls to distribute hydraulic fluid throughout the system. Also check for leaks; then stop the engine. Note: Although not needed for normal maintenance procedures, the front cutting unit can be pivoted (tilted) to an upright position.
3. Secure the height-of-cut chains to the rear of the cutting unit. 4. Connect the damper assembly and secure it with the retainer clip. Adjusting the Cutting Unit Pitch Measuring the Cutting Unit Pitch Cutting unit pitch is the difference in height-of-cut from the front of the blade plane to the back of the blade plane. Toro recommends a blade pitch of .300 inch (7.5 mm). That is the back of the blade plane is .300 inch (7.5 mm) higher than the front. 1.
6. Adjust the other set of nuts to raise or lower the rear of the cutting unit and attain the correct cutting unit pitch. 7. Tighten the jam nuts. Figure 96 1. Tensioning cap 4. Top axle mounting hole 2. Spacers 5. Castor wheel 3. Shims Servicing the Castor Arm Bushings The castor arms have bushings pressed into the top and bottom of the tube and after many hours of operation, the bushings will wear. To check the bushings, move the castor fork back and forth and from side to side.
3. Check the bearings, spacer, and inside of the wheel hub for wear. Replace any damaged parts. 4. To assemble the castor wheel, push the bearing into the wheel hub. When installing the bearings, press on the outer race of the bearing. 5. Slide the bearing spacer into the wheel hub. Push the other bearing into the open end of the wheel hub to captivate the bearing spacer inside the wheel hub. Figure 97 1. Castor arm tube 6.
Blade Maintenance Important: The curved part of the blade must be pointing toward the inside of the cutting unit to ensure proper cutting. Checking for a Bent Blade Note: After striking a foreign object, torque all the spindle pulley nuts to 130 to 150 ft-lb (176 to 203 N⋅m) and the blade bolts to 85 to 110 ft-lb (115 to 149 N⋅m). After striking a foreign object, inspect the machine for damage and make repairs before restarting and operating the equipment.
wears down, the quality-of-cut will degrade somewhat, although the cutting edges are sharp. The cutting edge of the blade must be sharp so that the grass is cut rather than torn. A dull cutting edge is evident when the tips of the grass appear brown and shredded. Sharpen the cutting edges to correct this condition. 1. Position the machine on a level surface.
Miscellaneous Maintenance Cleaning the Cab Air Filters Service Interval: Every 250 hours—Clean the cab air filters. (Clean more frequently in extremely dusty or dirty conditions and replace them if they are torn or excessively dirty.) Servicing the Spark Arrestor Muffler 1. Remove the thumb screws and grates from over both the in-cab and rear cab air filters (Figure 103). Service Interval: Every 250 hours—Service the spark arrestor. Every 250 hours operation, clear the muffler of carbon buildup. 1.
Cleaning the Air Conditioning Coil Cleaning the A/C Condenser Screen Service Interval: Every 250 hours—Clean the air conditioning coil. (Clean more frequently in extremely dusty or dirty conditions) Service Interval: Every 50 hours—Clean the air conditioning screen. (Clean more frequently in extremely dusty or dirty conditions) 1. Stop the engine and remove the key. 1. Stop the engine and remove the key. 2. Remove the (4) screws securing the fan and the condenser cover to the fan mount (Figure 104).
Storage 9. Seal the air cleaner inlet and the exhaust outlet with weatherproof tape. Preparing for Seasonal Storage 10. Check the anti freeze protection and add a 50/50 solution of water and ethylene glycol anti-freeze as needed for the expected minimum temperature in your area. Traction Unit 1. Thoroughly clean the traction unit, cutting units, and the engine. Important: Do not use high pressure water near Info Center 2.
Schematics g019363 Hydraulic Schematic (Rev.
g018561 Electrical Schematic (Sheet 1 of 6) (Rev.
Electrical Schematic (Sheet 2 of 6) (Rev.
g018563 Electrical Schematic (Sheet 3 of 6) (Rev.
g018564 Electrical Schematic (Sheet 4 of 6) (Rev.
g018565 Electrical Schematic (5 of 6) (Rev.
g018566 Electrical Schematic (Sheet 6 of 6) (Rev.
Notes: 77
Notes: 78
Notes: 79
The Toro Total Coverage Guarantee A Limited Warranty Conditions and Products Covered The Toro Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrant your Toro Commercial product (“Product”) to be free from defects in materials or workmanship for two years or 1500 operational hours*, whichever occurs first. This warranty is applicable to all products with the exception of Aerators (refer to separate warranty statements for these products).
