Toro 31598 Operator's Manual
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Toro 31598 Operator's Manual

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Original Instructions (EN)
Groundsmaster
Rotary Mower
Model No. 31598—Serial No. 315000001 and Up
Model No. 31598TE—Serial No. 315000001 and Up
Model No. 31599—Serial No. 315000001 and Up
Model No. 31599TE—Serial No. 315000001 and Up
Form No. 3394-110 Rev B
®
5900 and 5910
*3394-110* B

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Summary of Contents for Toro 31598

  • Page 1 Form No. 3394-110 Rev B Groundsmaster ® 5900 and 5910 Rotary Mower Model No. 31598—Serial No. 315000001 and Up Model No. 31598TE—Serial No. 315000001 and Up Model No. 31599—Serial No. 315000001 and Up Model No. 31599TE—Serial No. 315000001 and Up *3394-110* B Register at www.Toro.com.
  • Page 2 This product complies with all relevant European directives; Whenever you need service, genuine Toro parts, or additional for details please see the separate product specific Declaration information, contact an Authorized Service Dealer or Toro of Conformity (DOC) sheet. Customer Service and have the model and serial numbers of your product ready.

  • Page 3: Table Of Contents

    Servicing the Fuel System ........46 Safety ................4 Servicing the Water Separator ........46 Safe Operating Practices........... 4 Replacing the Fuel Filter..........47 Toro Mower Safety ..........6 Electrical System Maintenance ........48 Sound Power Level ..........7 Fuses ..............48 Sound Pressure Level..........7 Battery Care............49...

  • Page 4: Safety

    Safety • Thoroughly inspect the area where the equipment is to be used and remove all objects which may be thrown by the machine. This machine has been designed in accordance with EN • Replace faulty silencers/mufflers. ISO 5395:2013 and ANSI B71.4-2012. •...
  • Page 5 start the engine from the operators position. Use seat – before making height adjustment unless adjustment belts, if provided. can be made from the operators position. • Remember there is no such thing as a safe slope. Travel • Reduce the throttle setting before stopping engine and, if on grass slopes requires particular care.

  • Page 6: Toro Mower Safety

    • Turn off the blades when not mowing. The following list contains safety information specific to Toro products or other safety information that you must know that • For operating environments exceeding 43 degrees C (110 is not included in the CEN, ISO, or ANSI standards.

  • Page 7: Sound Power Level

    Authorized Toro Distributor. • To ensure optimum performance and continued safety certification of the machine, use only genuine Toro replacement parts and accessories. Replacement parts and accessories made by other manufacturers could be dangerous, and such use could void the product warranty.

  • Page 8: Safety And Instructional Decals

    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. 121–3883 1. Disengage the PTO 3. Read the Operator’s Manual 2.
  • Page 9 106-6754 1. Warning—do not touch the hot surface. 2. Cutting/dismemberment hazard, fan and entanglement hazard, belt—stay away from moving parts. 93-7818 1. Warning—read the Operator's Manual for instructions on torquing the blade bolt/nut to 115-149 N-m (85-110 ft-lb). 114-0844 1. Left hand turn signal 4.
  • Page 10 120-6604 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. 114-0848 3. Cutting/dismemberment hazard of foot, mower blade—stay 1. High range 6. Low idle away from moving parts, keep all guards and shields in place.
  • Page 11 114-0974 1. Belt routing 114-0133 1. Headlights 7. Traction assist—engage 2. On 8. Traction assist—disengage 3. Off 9. Lower cutting units—left 4. Headlight switch location 10. Lower cutting units—center 5. Cruise control—engage 11. Lower cutting units—right 114-4883 6. Cruise control—disengage 1.
  • Page 12 117–2754 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.
  • Page 13 115-5489 (Model 31599 only) 1. Warning—when the cab windows are open wear hearing protection. Battery Symbols 2. Close the rear window before attempting to open the hood. Some or all of these symbols are on your battery 1. Explosion hazard 6.
  • Page 14 130–2449 1. Read the Operator’s Manual for information on maintenance. 125–5263 114-0846 1. Read the Operator’s Manual for information on fuses. 1. Read the Operators Manual; to start the engine, move the traction pedal to Neutral, apply the brake, move the throttle switch to low, turn the ignition key to Preheat.

  • Page 15: Setup

    Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure Description Qty. – No parts required Remove the side deck straps and brace. Deck cover, right Deck cover, left Lower the front deck winglets. V-Belt –...
  • Page 16 Figure 4 Figure 3 1. Winglet 4. Eccentric 2. Hinge pin 5. Lower hole 1. Winglet 4. Eccentric 3. Bolt 2. Hinge pin 5. Upper hole 3. Stop bolt 6. Deck mounts 7. Install the winglet belts as follows: • Start the belt around the winglet spindle pulley and 4.

  • Page 17: Level Front Center Deck

    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. Level Winglet Decks to Front Center Deck No Parts Required Procedure Level the winglet decks to the front deck as follows: 1.

  • Page 18: Checking Tire Pressure

    Checking Fluid Levels No Parts Required Procedure 1. Check the engine oil level before starting the engine, Figure 8 refer to Checking the Engine Oil Level (page 27) Engine Maintenance. 1. Eccentric notch 2. Check the hydraulic fluid level before starting the engine, refer to Checking the Hydraulic Fluid (page 56) 4.

  • Page 19: Product Overview

    Horn Button Product Overview Press the horn button (Figure 10) to activate the horn. Controls Parking Brake Latch Note: Determine the left and right sides of the machine from the normal operating position. The knob on the left side of the console actuates the parking brake lock (Figure 10).

  • Page 20: Cab Controls

    Light Switch Note: The decks will not lower while in the High speed range. and the decks will not raise or lower if the operator is Press the lower edge of the switch (Figure 11) to turn on the out of the seat when the engine is running. lights.
  • Page 21 Fore and Aft Adjusting Lever Temperature Control Rotate the temperature control knob to regulate the air Pull out on the lever to slide the seat fore or aft. temperature in the cab (Figure 12). Seat Back Adjusting Lever Wind Shield Wiper Switch Move the lever to adjust the seat back angle.
  • Page 22 Top Right Gauge-Fuel Level Left to Right on the Bottom Half 1. PTO Engaged 2. Parking Brake Engaged 3. Fan Reversing 4. Cruise Control Engaged 5. H/L (Hi/Low speed range) Bottom Left Corner-Air Intake Heater Active Bottom Middle-Traction Assist Engaged Bottom Right-Machine Hours Figure 15 Screen 2 will display:...
  • Page 23 open) to return to the main screen, or press cancel to exit. Engine Air Filter Restriction Indicator This display (Figure 17) indicates when the engine air filter is restricted. Figure 16 1. Tachometer 3. Battery voltage 2. Hydraulic oil temperature 4.
  • Page 24 Figure 18 Fault Example 1. Fault screen Advisories Advisories provide the operator additional information to operate certain functions on the machine (Figure 19). Figure 19 Advisory Example 1. Advisory screen...
  • Page 25 To Set the Cruise Control 2. Disengage the PTO. 3. Move the traction pedal to neutral. Increase the ground speed. 4. Insert the jumper in teach plug. To Float the Deck 5. Engine running. Lower the decks. 6. Operator must be seated or set the parking brake. To Lower the Deck 7.

  • Page 26: Specifications

    Contact your Authorized Service Dealer or Distributor or go to www.Toro.com for a list of all approved attachments and accessories. To best protect your investment and maintain optimal performance of your Toro equipment, count on Toro genuine parts.

  • Page 27: Operation

    Operation Note: Determine the left and right sides of the machine from the normal operating position. G009027 CAUTION Figure 20 This machine produces sound levels in excess of 85 1. Wear safety glasses. 2. Wear hearing protection. dBA at the operators ear and can cause hearing loss through extended periods of exposure.

  • Page 28: Checking The Tire Pressure

    WARNING DANGER Fuel is harmful or fatal if swallowed. Long-term In certain conditions, fuel is extremely flammable exposure to vapors can cause serious injury and and highly explosive. A fire or explosion from fuel illness. can burn you and others and can damage property. •...

  • Page 29: Checking The Torque Of Wheel Lug Nuts

    Figure 23 Figure 22 1. Castor arm height of cut 3. Castor fork height of cut mounting holes spacers 2. Castor fork height of cut mounting holes Checking the Torque of Wheel Lug Nuts Note: When operating at 64 mm (2-1/2 inch) height of cut or higher, the axle bolt should be installed in Service Interval: After the first 10 hours the bottom castor fork hole to prevent grass buildup...
  • Page 30 Figure 26 Note: When mowing at height-of-cuts below 51 mm Figure 24 (2–1/2 inches), move the skids, gage wheels and rollers to the highest holes. 1. Tensioning cap 4. Top axle mounting hole 2. Spacers (4) 5. Castor wheel 7. To attain the 102 to 153 mm (5 to 6 inch) height of cut 3.

  • Page 31: Adjusting The Skids

    Adjusting the Skids The skids should be mounted in the lower position when operating at heights of cut greater than 64 mm (2-1/2 inch) and in the higher position when operating at heights of cut lower than 2-1/2 inches (64 mm). Note: When the skids become worn, you can switch the skid to the opposite sides of the mower, flipping them over.

  • Page 32: Checking The Mismatch Between Cutting Units

    Checking the Mismatch Between Cutting Units 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. 1. Set all cutting units to the desired height of cut; refer to Adjusting the Height-of-Cut (page 29).

  • Page 33: Adjusting The Mirrors

    Note: The side cutting unit castor wheels should remain on the ground with counterbalance applied. Note: If adjustments need to be made to match the cut between the front and side cutting units, make the adjustments to the side cutting units only. 3.

  • Page 34: Aiming The Headlights

    Aiming the Headlights Checking the Interlock Switches 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. CAUTION 2. Place a flat piece of sheet metal over the face of the If safety interlock switches are disconnected or headlight.

  • Page 35: Jacking Points

    Jacking Points • On the front of the machine on the frame on the inside of each drive tire (Figure 38). Figure 36 Figure 38 1. Bypass valves (2) 1. Front jacking point (2) 2. Rotate each valve 3 turns counter-clockwise to open •...

  • Page 36: Tie Downs

    Tie Downs • Under the front of the operator's platform (2 places) (Figure 40). Figure 40 1. Front tie down (2) • The rear bumper (2 places) (Figure 41). Figure 41 1. Rear tie down (2)

  • Page 37: Operating Characteristics

    Operating Characteristics Before stopping the engine, disengage all controls and move the throttle to the slowest position. Moving the throttle to the Practice driving the machine because it has a hydrostatic slowest position reduces high engine speed rpm, noise, and transmission and its characteristics are different than many vibration.

  • Page 38: Operating Tips

    Operating Tips Select the Proper Height-of-Cut Setting to Suit Conditions Remove approximately 25 mm (1 inch) 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.

  • Page 39: Maintenance

    Note: Determine the left and right sides of the machine from the normal operating position. Note: Looking for an Electrical Schematic or Hydraulic Schematic for your machine? Download a free copy of the schematic by visiting www.Toro.com and searching for your machine from the Manuals link on the home page. Recommended Maintenance Schedule(s)

  • Page 40: Service Interval Chart

    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. Service Interval Chart Figure 46 Premaintenance Procedures Inner Wing Deck Covers Removal...

  • Page 41: Lubrication

    Lubrication Greasing the Bearings and Bushings Service Interval: Before each use or daily—Lubricate castor arm bushings. Every 50 hours—Lubricate all grease fittings. The machine has grease fittings that must be lubricated Figure 48 regularly with no. 2 general-purpose lithium-base grease. If 1.
  • Page 42 Figure 50 Figure 51 Figure 53 Front Cutting Unit • 2 castor fork shaft bushings (Figure • 5 spindle shaft bearings (located on spindle housing) (Figure • 3 idler arm pivot bushings (located on the idler pivot shaft) (Figure Figure 52...
  • Page 43 Figure 54 Figure 56 Front Lift Assemblies • 2 lift arm bushings (Figure Side Lift Assemblies (per side) • 2 lift arm ball joints (Figure • 3 main lift arm bushings (Figure • 2 front deck lift cylinder pivots (Figure •...

  • Page 44: Engine Maintenance

    Engine Maintenance pressure air which could force dirt through the filter into the intake tract. This cleaning process prevents debris from migrating into the intake when the primary Air Cleaner Maintenance filter is removed. 2. Remove the primary filter (Figure 59).

  • Page 45: Servicing The Engine Oil

    Preferred oil: SAE 15W-40 (above 0°F) • Alternate oil: SAE 10W-30 (below 23°F) Toro Premium Engine Oil is available from your distributor in either 15W-40 or 10W-30 viscosity. See the parts catalog for part numbers. Also, refer to the Engine Operator's Manual, included with the machine, for further recommendations.

  • Page 46: Adjusting The Valve Clearance

    Fuel System Maintenance 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 Figure 63 can cause property damage. 1. Engine oil drain plug •...

  • Page 47: Replacing The Fuel Filter

    Replacing the Fuel Filter Service Interval: Every 500 hours—Replace the fuel filter element 1. Clean the area around the fuel filter head (Figure 65). Figure 64 1. Water separator filter 4. Flow check valve canister 2. Priming pump 5. Vent plug Figure 65 3.

  • Page 48: Electrical System Maintenance

    (Figure 71). 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 The traction unit fuses...

  • Page 49: Battery Care

    (Figure 68). Recalibrate Traction Pedal Service Interval: Every 1,000 hours—Recalibrate traction pedal Contact your local Toro distributor or refer to the Toro Service Manual for the assistance. Figure 71 1. Cab fuse box 2. Fuses...

  • Page 50: Drive System Maintenance

    Drive System Maintenance Adjusting the Traction Pedal Angle The traction pedal operating angle can be adjusted for g019500 operator comfort. Figure 73 1. Loosen the 2 nuts and bolts securing the left side of the 1. Check/drain plug (3 o'clock position) traction pedal to the bracket (Figure 72).

  • Page 51: Checking The Rear Wheel Toe-In

    g021 156 Figure 75 Figure 77 1. Drain plug 2. Brake housing 1. Center to center distance 2. Tie rod clamps 4. When all of the oil has drained from both locations, re-install the plug in the brake housing. 2. To adjust, loosen the clamps at both ends of the tie rods (Figure 77).

  • Page 52: Cooling System Maintenance

    Cooling System DANGER Maintenance The rotating fan and drive belt can cause personal injury. • Do not operate the machine without the covers CAUTION in place. Discharge of hot pressurized coolant or touching • Keep fingers, hands and clothing clear of hot radiator and surrounding parts can cause severe rotating fan and drive belt.

  • Page 53: Servicing The Engine Cooling System

    Servicing the Engine Cooling Brake Maintenance System Adjusting the Service Brakes Service Interval: Every 100 hours—Inspect the cooling system hoses. Adjust the service brakes when there is more than 50 mm (2 Every 2 years—Flush the cooling system and replace inches) of “free travel”...

  • Page 54: Belt Maintenance

    Belt Maintenance the belt will show signs of wear. Signs of a worn belt are: squealing when belt is rotating, blades slipping when cutting grass, frayed edges, burn marks and cracks. Replace the belt if Servicing the Alternator Belt any of these conditions are evident. Service Interval: After the first 10 hours—Check the Front Cutting Unit alternator belt tension.

  • Page 55: Side Cutting Decks

    Figure 83 1. Hydraulic motor 2. Mounting bolts 5. Remove the old belt from around the spindle pulleys Figure 85 and idler pulley. 1. Idler pulleys 6. Route the new belt around the spindle pulleys and idler pulley assembly as shown in Figure 4.

  • Page 56: Hydraulic System Maintenance

    Toro Premium All Season Hydraulic Fluid (Available in 2. On the right side of the machine, raise the access cover 5 gallon pails or 55 gallon drums. See parts catalog or Toro to expose the hydraulic tank cap (Figure 88).

  • Page 57: Changing The Hydraulic Fluid And Filters

    Use Toro replacement filters (Part No. 86–6110 for the left throughout the system. Also check for leaks; then stop side of the machine and 75-1310 for the right side of the the engine.

  • Page 58: Hydraulic System Test Ports

    • Seek immediate medical attention if fluid is injected into skin. Hydraulic System Test Ports The test ports are used to test the pressure in the hydraulic circuits. Contact your local Toro distributor or refer to the Toro Service Manual for assistance. Figure 91 1. Damper assembly 2.

  • Page 59: Pivoting The Front Cutting Unit Down

    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 7.5 mm (0.300 inch). That is the back of the blade plane is 7.5 mm (0.300 inch) higher than...

  • Page 60: Servicing The Castor Arm Bushings

    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. If the castor spindle is loose inside the bushings, the bushings are worn and must be replaced.

  • Page 61: Servicing The Castor Wheels And Bearings

    Always use genuine other bearing into the open end of the wheel hub to Toro replacement blades to be sure of safety and optimum captivate the bearing spacer inside the wheel hub.

  • Page 62: Inspecting And Sharpening The Cutter Blade(S)

    Note: After striking a foreign object, torque all the 2. Examine the cutting ends of the blade carefully, spindle pulley nuts to 176 to 203 N-m (130 to 150 ft-lb) especially where the flat and curved parts of the blade and the blade bolts to 115 to 149 N-m (85 to 110 ft-lb).

  • Page 63: Correcting The Cutting Unit Mismatch

    Miscellaneous the anti-scalp cup and blade bolt; refer to Removing and Installing the Cutter Blade(s). Maintenance Correcting the Cutting Unit Servicing the Spark Arrestor Mismatch Muffler If there is mismatch between the blades, on a single cutting unit, the grass will appear streaked when it is cut. This Service Interval: Every 250 hours—Service the spark problem can be corrected by making sure that the blades are arrestor.

  • Page 64: Cleaning The Air Conditioning Coil

    1. Stop the engine and remove the key. 2. Remove the 6 nuts and washers from the bottom of the rear of the cab (Figure 105). g028378 Figure 103 1. Filter 3. Screw g028380 2. Grate Figure 105 1. Washer 2.

  • Page 65: Storage

    B. Clean the battery, terminals, and posts with a wire brush and baking soda solution. C. Coat the cable terminals and battery posts with Grafo 112X skin-over grease (Toro Part No. 505-47) or petroleum jelly to prevent corrosion. D. Slowly recharge the battery every 60 days for 24 hours to prevent lead sulfation of the battery.
  • Page 66 Notes:...
  • Page 67 The Way Toro Uses Information Toro may use your personal information to process warranty claims, to contact you in the event of a product recall and for any other purpose which we tell you about. Toro may share your information with Toro's affiliates, dealers or other business partners in connection with any of these activities. We will not sell your personal information to any other company.
  • Page 68 Countries Other than the United States or Canada Customers who have purchased Toro products exported from the United States or Canada should contact their Toro Distributor (Dealer) to obtain guarantee policies for your country, province, or state. If for any reason you are dissatisfied with your Distributor's service or have difficulty obtaining guarantee information, contact the Toro importer.

This manual is also suitable for:

31598te3159931599teGroundmaster 5900Groundsmaster 5910

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