Form No. 3354–670 Rev. B Groundsmaster 3320 Traction Unit Model No.
Greasing the Bearings And Bushings . . . . . . . . . . Service Interval Chart . . . . . . . . . . . . . . . . . . . . . . Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Recommended Maintenance Schedule . . . . . . . . . Daily Maintenance Checklist . . . . . . . . . . . . . . . . Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Air Cleaner Maintenance . . . . . . . . . . . . Servicing the Air Cleaner . . . . . . . . . . . . . . . . . . .
Introduction This manual uses two other words to highlight information. Important calls attention to special mechanical information and Note: emphasizes general information worthy of special attention. Read this manual carefully to learn how to operate and maintain your product properly. The information in this manual can help you and others avoid injury and product damage. Although Toro designs and produces safe products, you are responsible for operating the product properly and safely.
• insufficient wheel grip; • Mow only in daylight or in good artificial light. • being driven too fast; • Before attempting to start the engine, disengage all blade attachment clutches, shift into neutral, and engage the parking brake. • inadequate braking; • the type of machine is unsuitable for its task; • Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times.
• Be certain the seat belt can be released quickly in the event of an emergency. Warning • Be aware there is no rollover protection when the roll bar is down. Engine exhaust contains carbon monoxide, which is an odorless, deadly poison that can kill you. Do not run engine indoors or in an enclosed area. • Check the area to be mowed and never fold the ROPS in the areas where there are slopes, drop offs or water.
• Disconnect battery and remove spark plug wire before making any repairs. Disconnect the negative terminal first and the positive last. Reconnect positive first and negative last. • Do not touch the engine, silencer/muffler, or exhaust pipe while the engine is running or soon after it has stopped because these areas could be hot enough to cause burns. • Keep hands and feet away from moving parts. If possible, do not make adjustments with the engine running.
Sound Pressure Level Vibration Level This unit has an equivalent continuous A-weighted sound pressure at the operator ear of: 90 dB(A), based on measurements of identical machines per Directive 98/37/EC and amendments. Hand-Arm Sound Power Level Whole Body This unit does not exceed a vibration level of 2.5 m/s@ at the hands based on measurements of identical machines per ISO 5349 procedures. This unit does not exceed a vibration level of .
106-5976 1. Engine coolant under pressure 2. Explosion hazard—read the Operator’s Manual. 3. Warning—do not touch the hot surface. 4. Warning—read the Operator’s Manual. 1. Unlocked 2. Locked 3. Lower the cutting units 4. Raise the cutting units 5. Engine speed 6. Fast 108-9691 7. Slow 8. Choke 9. Hopper control 10. Lower the hopper 11. Raise the hopper 82-8940 1. Locked 2. Tilt steering 3. Unlocked 105-7179 1. Read the Operator’s Manual. 8 2.
108-2018 1. PTO—Off 2. PTO—On 3. Optional Equipment 4. Optional Equipment 5. Engine—Run 6. Engine—Stop 1. Warning—read the Operator’s Manual, all operators should be trained before operating the machine. 2. Thrown object hazard—keep bystanders a safe distance from the machine and keep the deflector in place. 3. Cutting/dismemberment hazard of hands or feet, mower blade—stay away from moving parts. 7. Engine—Start 108-6585 4.
8-6584 1. Read the Operator’s Manual for more information 106-9290 1. 2. 3. 4. Inputs Backlap High temperature shutdown High temperature warning 5. 6. 7. 8. In seat Power Take–off (PTO) Parking brake Off Neutral 9. Outputs 10. Power Take–off (PTO) 11. Start 10 12. Energize to Run (ETR) 13. Start 14.
108-2073 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. Read the Operator’s Manual; drive slowly and carefully. 93–7834 1. 2. 3. 4. 11 No step Traction pedal Traction–forward Traction–reverse 5. Danger – Shut off PTO prior to raising decks 6.
Battery Symbols Some or all of these symbols are on your battery. 1. Explosion hazard 2. No fire, open flames, or smoking. 3. Caustic liquid/chemical burn hazard 4. Wear eye protection 5. Read the Operator’s Manual. 6. Keep bystanders a safe distance from the battery. 7. Wear eye protection; explosive gases can cause blindness and other injuries 8. Battery acid can cause blindness or severe burns. 9. Flush eyes immediately with water and get medical help fast. 10. Contains lead; do not discard.
Specifications Note: Specifications and design subject to change without notice. General Specifications Engine Air Cleaner Fuel Tank Capacity Fuel Pump Cooling System Briggs & Stratton/Daihatsu, 4 cycle liquid cooled gasoline engine. 24.9 hp @ 2900. Engine governed to 3200–3250 rpm high idle, no load. Low idle is 1600–1650 rpm. Heavy duty remote mounted. 12.8 gal. (48.5 l) Equipped with a fuel filter. 12 volt electric (transistor type) w/replaceable fuel filter. 4 qt (3.7 l) capacity.
Measurements Length Width (Rear Wheels) Height w/o ROPS Weight 83.5 in. 47 in. 56 in. 1340 lb. Setup Note: Determine the left and right sides of the machine from the normal operating position. Note: Use this chart as a checklist to ensure that all parts necessary for assembly have been received. Without these parts, total set-up cannot be completed. Some parts may have already been assembled at the factory. Description Qty.
Install the Handle to the Hood Warning 1. Remove and discard the (2) screws and nuts securing the hood cable bracket and to the underside of the hood (Fig. 3). • PTO universal shaft is attached to traction unit frame. DO NOT ENGAGE PTO without first removing universal shaft or coupling it to a suitable implement. Install the Steering Wheel 1. Remove steering wheel from seat plate. Remove cap from steering wheel (Fig. 2). 2. Remove jam nut from steering shaft.
Install the Seat Belt 3. Loosely mount the R–clamps to the seat bracket studs with the 2 nuts previously removed (Fig. 6). The R–clamps are to be positioned under the seat suspension tabs. 1. Install each end of the seat belt in the holes in the back of the seat with (2) 7/16 x 20 – 1” lg. capscrews, 7/16 flatwashers and 7/16 lockwashers (Fig. 5). Tighten securely. The latch side of the belt is to be mounted to the left side of the seat. 4.
Warning CALIFORNIA Proposition 65 Warning Battery posts, terminals, and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and reproductive harm. Wash hands after handling. 1 Warning Figure 8 1. Electrolyte Battery terminals or metal tools could short against metal tractor components causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. 4.
Checking the Tire Pressure The tires are over–inflated for shipping. Therefore, release some of the air to reduce the pressure. Correct air pressure in front and rear tires is 20 psi. 1 Front of machine 2 Figure 9 1. Positive (+) 2. Negative (–) Warning • Connecting cables to the wrong post could damage the electrical system and result in personal injury. Note: Make sure battery cables are routed away from any sharp edges or moving parts. Adjusting the ROPS 1.
Rear Weight The Groundsmaster 3320 Series Traction Units comply with CEN standard EN 836:1997, ISO standard 5395:1990 and the ANSI B71.4–2004 Standard when equipped with rear weight. 215 lb. of rear weight is installed at the factory. Use charts below to determine combinations of additional weight required. Order parts from your local Authorized &ToroShort; Distributor. Rear Weight Required Left Side Weight Required Weight Part Number Weight Description Qty. 52” Side Discharge Deck (Model 30555) 0 lb.
Adjust Counterbalance Pressure For best performance, the cutting unit bounce on uneven turf is minimal and it does not ride heavily over flat terrain. If scalping occurs or the cut is uneven from side to side, there may be too much weight on the deck and the weight may have to be transferred to the traction unit: i.e. increased counterbalance pressure. 1 2 By contrast, if too much weight is transferred to the traction unit, the deck will bounce excessively and the cut will be uneven.
Before Operating 1 Checking the Crankcase Oil The engine is shipped with oil in the crankcase; however, the oil level must be checked before and after the engine is first started. Crankcase capacity is approximately 3.2 qt. (3 l) with the filter. Use high-quality engine oil that meets the following specifications: Figure 14 1. Oil fill API Classification Level Required: SJ, SK, SL or higher.
Checking the Hydraulic System The machines reservoir is filled at the factory with approximately 5 quarts (4.7 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: 1 Toro Premium Transmission/Hydraulic Tractor Fluid (Available in 5 gallon pails or 55 gallon drums. See parts catalog or Toro distributor for part numbers.
2 Danger 1 Under certain conditions, 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. • Use a funnel and fill the fuel tank outdoors, in an open area, when the engine is off and is cold. Wipe up any fuel that spills. • Do not fill the fuel tank completely full. Add fuel to the fuel tank until the level is to the bottom of the filler neck.
Parking Brake freely return. This will allow the deck to drop at a controlled rate and enables the deck ground following float function. If the lever is held in the forward (LOWER) position, the deck will drop quickly. To raise the deck and hold it in the transport position, pull and hold the lift lever rearward until the deck has fully raised, then release the lever to allow it to return. The deck will now hold in the transport position. The deck must be raised when transporting between mowing locations.
Charge Indicator Illuminates when system charging circuit malfunctions (Fig. 22). Oil Pressure Warning Light The oil pressure warning light (Fig. 22) glows when oil pressure in engine drops below a safe level. If low oil pressure ever occurs, stop engine and determine the cause. Repair the damage before starting the engine again. 1 LIft Lever Lock Lock lift lever (Fig. 22), in raised position, when performing maintenance on deck. Figure 23 1.
Operation 1 Note: Determine the left and right sides of the machine from the normal operating position. 2 3 Using the Rollover Protection System (ROPS) Warning To avoid injury or death from rollover: keep the roll bar in the raised locked position and use the seat belt. Figure 24 1. Roll bar 2. Pin Ensure that the rear part of the seat is secured with the seat latch. Starting/Stopping the Engine Warning 1.
Pushing Or Towing the Traction Unit 5. To stop engine, move throttle control backward to SLOW position, move PTO switch to OFF position and rotate ignition key to OFF. Remove key from switch to prevent accidental starting. Checking Interlock System In an emergency, the traction unit can be pushed or towed for a very short distance. However, Toro does not recommend this as standard procedure.
3. Start the engine momentarily after the repairs are completed and make sure the pins are in the full disengaged (fully up) position. direction of the deck when trimming along fences or similar objects. The other benefit of the brakes is to maintain traction. For example; in some slope conditions, the uphill wheel slips and loses traction.
Backlap PTO Hi Temp Start In Seat ETR PTO Switch Start Inputs Outputs Park Brake Off Power Neutral 5. If specific output LED is illuminated without appropriate output function, check output harness, connections, and component. Repair as required. Here are the logical troubleshooting steps for the SCM device. 1. Determine the output fault you are trying to resolve (PTO, START, or ETR). 6. If specific output LED is not illuminated, check both fuses. 2.
(A) PTO input must be re–initiated after engine cool down (cycle key on–off) N/A Not applicable To troubleshoot, turn on the key without starting the engine. Identify the specific function that does not work and work across the logic chart. Inspect the condition of each input LED’s to ensure it matches the logic chart. If the input LED’s are correct, check the output LED.
Lubrication Greasing the Bearings And Bushings The traction unit has grease fittings that must be lubricated regularly with No. 2 General Purpose Lithium Base Grease. If machine is operated under normal conditions, lubricate all bearings and bushings after every 50 hours of operation. Bearings and bushings must be lubricated daily when operating conditions are extremely dusty and dirty.
Figure 30 Figure 33 Note: Bearings rarely fail from defects in materials or workmanship. The most common reason for failure is moisture and contamination working its way past the protective seals. Bearings that are greased will rely upon regular maintenance to purge harmful debris from the bearing area. Sealed bearings rely on an initial fill of special grease and a robust integral seal to keep contaminants and moisture out of the rolling elements.
Service Interval Chart 33
Maintenance Recommended Maintenance Schedule Maintenance Service Interval Maintenance Procedure Check PTO Belt Tension Check Alternator Belt Tension Change Transmission Filter Torque Wheel Lug Nuts Check Brake Operation After first 10 hours • • • • • After first 50 hours • Change Engine Oil and Filter • Check PTO Belt Tension • Check Brake Operation Every 50 hours • • • • Check Battery Fluid Level Check Battery Cable Connections Lubricate All Grease Fittings Lubricate Brake Cables Every 200 hours
Daily Maintenance Checklist Duplicate this page for routine use. For the week of: Maintenance Check Item Mon. Tues. Wed. Thurs.
Maintenance 4. Clean the dirt ejection port located in the removable cover. Remove the rubber outlet valve from the cover, clean the cavity and replace the outlet valve. Note: Determine the left and right sides of the machine from the normal operating position. 5. Install the cover orienting the rubber outlet valve in a downward position – between approximately 5:00 to 7:00 when viewed from the end (Fig. 35).
To thoroughly clean the radiator: 1. Remove the screen. 2. Working from the fan side of the radiator, blow with low pressure (25 p.s.i.) compressed air (Do Not Use Water). Repeat procedure from the front of radiator and again from the fan side. 3. After the radiator is thoroughly cleaned, clean out debris that may have collected in the channel at the radiator base. 1 4. Clean and install the screen. Changing the Engine Oil And Filter Figure 38 1.
Danger Under certain conditions, 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. 2 • Use a funnel and fill the fuel tank outdoors, in an open area, when the engine is off and is cold. Wipe up any fuel that spills. • Do not fill the fuel tank completely full. Add fuel to the fuel tank until the level is to the bottom of the filler neck.
Adjusting the Traction Drive for Neutral 4. Tighten jam nut. To Replace Belt: 1. Turn off the engine and remove the ignition key. Set the parking brake. Raise the hood and allow the engine to cool. If the machine moves when the traction pedal is in the neutral position, the traction cam must be adjusted. 2. Loosen the tensioning rod jam nut (Fig. 41). 1. Park the machine on a level surface and turn the engine off. 3. Using a 1/2” wrench, loosen the belt tensioning spring (Fig. 41) all the way. 2.
4. Start the engine and rotate the cam hex forward until the front wheel starts to rotate, then rotate hex cam backward until front wheel starts to rotate. Determine the mid position of the neutral span and tighten the retaining screw. Do procedure at low speed idle and at high engine speed. 2 .030” 5. Tighten the screw securing the adjustment. Torque to 15–18 ft–lb (20–24 NSm) 1 6. Stop the engine. 7. Adjust the screw on the neutral return arm (Fig.
the listed range for all the following material properties and it meets industry standards. We do not recommend the use of synthetic fluid. Consult with your lubricant distributor to identify a satisfactory product Note: Toro will not assume responsibility for damage caused by improper substitutions, so use only products from reputable manufacturers who will stand behind their recommendation. 3 1 Material Properties: Viscosity, ASTM D445 cSt @ 40_C 55 to 62 cSt @ 100_C 9.1 to 9.
3. If more adjustment is required, adjust traction rod (Fig. 48) as follows: backward until brake pedals have 1/2 to 1 inch (13 mm to 25 mm) of free travel. Tighten front nut after brakes are adjusted correctly. • Remove capscrew and nut securing traction rod end to pedal. • Loosen jam nut securing rod end to traction rod. • Rotate rod until desired length is attained. • Tighten jam nut and secure rod end to traction pedal with capscrew and nut removed to lock the angle of the foot pedal.
2. Slide cover up steering shaft to expose pivot bracket (Fig. 51). Danger Battery electrolyte contains sulfuric acid which is a deadly poison and causes severe burns. 2 1 • Do not drink electrolyte and avoid contact with skin, eyes or clothing. Wear safety glasses to shield your eyes and rubber gloves to protect your hands. • Fill the battery where clean water is always available for flushing the skin.
Storing the Battery Servicing the Fuses If the machine will be stored more than 30 days, remove the battery and charge it fully. Either store it on the shelf on the machine. Leave the cables disconnected if it is stored on the machine. Store the battery in a cool atmosphere to avoid quick deterioration of the charge in the battery. To prevent the battery from freezing, make sure it is fully charged. The specific gravity of a fully charged battery is 1.265–1.299.
Electrical Schematic 45
Storage Engine 1. Drain the engine oil from the oil pan and replace the drain plug. Traction Unit 2. Remove and discard the oil filter. Install a new filter. 1. Thoroughly clean the traction unit, deck and the engine, paying special attention to these areas: 3. Refill the engine with recommended motor oil. Refer to Changing Crankcase Oil. • radiator and radiator screen 4. Start the engine and run at idle speed for two minutes. • underneath the deck 5.
The Toro General Commercial Products Warranty A Two-Year 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.
