Form No. 3351-679 Dingo) 320-D Compact Utility Loader Model No. 22303—250000001 and Up Operator’s Manual Register your product at www.toro.com.
Warning Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Attachments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stability Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . Before Operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . Adding Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Draining Water from the Fuel Filter . . . . . . . . . . Checking the Oil Level . . . . . . . . . . . . . . . . . . . .
Safety or Service Representative provide exact information about your specific product. You will find the model and serial number plate at the location shown in Figure 1. Improper use or maintenance by the operator or owner can result in injury. To reduce the potential for injury, comply with these safety instructions and always pay attention to the safety alert symbol, which means CAUTION, WARNING, or DANGER—“personal safety instruction.
• Do not exceed the rated operating capacity, as the traction unit may become unstable which may result in loss of control. • Raising the loader arms on a slope will affect the stability of the machine. Whenever possible, keep the loader arms in the lowered position when on slopes. • Do not carry a load with the arms raised. Always carry loads close to the ground. Do not step off of the platform with the load raised. • Removing an attachment on a slope will make the rear of the traction unit heavy.
• Before and while backing, look behind and down for small children. • Battery gases can explode. Keep cigarettes, sparks and flames away from the battery. • Never carry children. They may fall off and be seriously injured or interfere with safe traction unit operation. • Keep your body and hands away from pin hole leaks or nozzles that eject high pressure hydraulic fluid. Use cardboard or paper to find hydraulic leaks.
Slope Chart 6
Safety and Instruction 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. 98-9051 99-3157 93-6680 98-8220 105-8432 93-6681 1. Cutting/dismembermenthazard, fan—stay away from moving parts.
1 1 93-7814 1. Entanglement hazard—stay away from moving parts 98-8219 1. Fast 2. Throttle 3. Slow 93-9084 1. Lift point 98-8235 1. Fast 2. Traction drive 2. Tie-down point 98-4677 3. Slow 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.
100–9979 1. No fire, open flames, or smoking. 2. Wear eye protection 3. Keep bystanders a safe distance from the battery. 4. Caustic liquid/chemical burn hazard 5. Read the Operator’s Manual. 6. Explosion hazard 7. Contains lead; do not discard. 8. Recycle 9. Wear eye protection; explosive gases can cause blindness and other injuries 10. No sparks, flame, or smoking 11. Sulfuric acid can cause blindness or severe burns. 12. Flush eyes immediately with water and get medical help fast.
2. Remove the rear access cover; refer to Removing the Rear Access Cover, page 24. 1 3. Remove and discard the plastic cap from the negative battery terminal. 4. Connect a charger to the battery (Fig. 3) and charge it for a minimum of 1 hour at 6 to 10 amps. Do not overcharge the battery. 4 m–3883 Figure 2 2 1. Speed selector lever 1 3 Charging and Connecting the Battery m- Warning Figure 3 1. Positive Battery Post 2. Negative Battery Post CALIFORNIA 3. Red (+) Charger Lead 4.
Specifications Specifications and design are subject to change without notice. Overall width 40.5 in. (103 cm) Overall length 60 in. (152 cm) Overall height 49 in. (125 cm) Weight Many attachments are available for use with the traction unit. These attachments allow you to perform many different functions with the traction unit such as hauling materials, digging holes, grading, and more. Contact your Toro dealer for a list of all approved attachments and accessories. 1722 lb.
Example: If the attachment installed on the traction unit has a Front Uphill rating of B, a Rear Uphill rating of D, and a Side Uphill rating of C, then you could drive forward up an 18° slope, rearward up a 10° slope, or sideways on a 14° slope, as listed in the above table.
Before Operating 4. Use a funnel and add diesel fuel to the fuel tank, until the level is 1/4 to 1/2 inch (6 mm to 13 mm) below the bottom of the filler neck. Before operating, check the fuel and oil level, remove debris from the traction unit, and check the tire pressure. Also, ensure that the area is clear of people and debris. You should also know and have marked the locations of all utility lines. Note: This space in the tank allows fuel to expand. Do not fill the fuel tank completely full. 5.
2. Allow the engine to cool. 5. Pull out the dipstick and wipe the metal end clean (Fig. 5). 6. Slide the dipstick fully into the dipstick tube (Fig. 5). 3. Remove the radiator filler cap and check the coolant level (Fig. 6). The coolant should be up to filler neck. 7. Pull the dipstick out and look at the metal end. 4. If coolant level is low, replenish the system. 8. If the oil level is low, clean around the oil filler cap and remove the cap (Fig. 5). Important Do not over fill the radiator. 5.
Checking the Hydraulic Fluid 1 Check the hydraulic fluid level before the engine is first started and after every 25 operating hours. Hydraulic Tank Capacity: 17.25 gal. (67 l) Use 10W-30 or 15W-40 detergent, diesel engine oil (API service CH-4 or higher). m–1872 Figure 8 1. Remove the attachment, if one is installed; refer to Removing an Attachment, page 22. 1. Valve stem 2.
Operation Traction Unit Overview Note: Determine the left and right side of the machine from the normal operating position. Figure 9 contains a front and back view of the traction unit. Familiarize yourself with all of the traction unit components listed in Figure 9. 17 6 4 14 5 15 14 6 4 13 12 3 2 18 7 11 10 16 mĆ4592 9 8 1 mĆ4599 18 Figure 9 1. 2. 3. 4. 5. Mount plate Tilt cylinder Auxiliary hydraulic couplers Loader arms Front access cover 6. 7. 8. 9. 10.
Key Switch Speed Selector Lever The key switch, used to start and stop the engine, has three positions: stop, run, and start. Move the speed selector lever to the fast (rabbit) position to set the traction drive, loader arms, and attachment tilt to high speed and the auxiliary hydraulics to low speed. To start the engine, rotate the key to the start position. Release the key when engine starts and it will move automatically to the run position.
1 1 3 2 5 3 2 4 4 m–4603 Figure 12 Figure 11 1. Flow divider control 2. Knob 3. 12 o’clock position 1. Oil pressure light 2. Battery light 4. 10 to 11 o’clock position 5. 9 o’clock position 3. Engine temperature light 4. Glow plug light Engine Temperature Light • Move the flow divider control to the twelve o’clock position to provide maximum speed to the traction unit hydraulics. If the engine temperature light is on, the engine is overheating.
Starting and Stopping the Engine To drive the traction unit, complete the following actions as necessary: Starting the Engine • To move forward, move the traction control levers forward. Important Do not use ether or starting fluid to start the engine; severe engine damage may occur. • To move rearward, move the traction control levers rearward. • To go straight, move both traction control levers equally. 1. Stand on the platform. 2. Move the auxiliary hydraulics valve lever to neutral. 3.
Moving a Non-functioning Traction Unit Using the Cylinder Locks Warning Important Do not tow or pull the traction unit without first opening the tow valves, or the hydraulic system will be damaged The loader arms may lower when in the raised position crushing anyone under them. 1. Stop the engine. Install the cylinder locks before performing maintenance that requires raised loader arms. 2. Remove the plug covering each tow valve (Fig. 13). Installing the Cylinder Locks 1. Start the engine. 2.
7. Install the cylinder locks over the hydraulic hoses and secure them with the clevis pins and cotter pins (Fig. 15). 1 3 5. Raise the loader arms while tilting back the mount plate at the same time. Important The attachment should be raised enough to clear the ground, and the mount plate should be tilted all the way back. 4 6. Stop the engine. 2 7. Engage the quick attach pins, ensuring that they are fully seated in the mount plate (Fig. 17).
Connecting the Hydraulic Hoses Removing an Attachment If the attachment requires hydraulics for operation, connect the hydraulic hoses as follows: 1. Lower the attachment to the ground 2. Stop the engine. 1. Stop the engine. 3. Disengage the quick attach pins by turning them to the outside. 2. Move the auxiliary hydraulics lever forward, backward, and back to neutral to relieve pressure at the hydraulic couplers. 4.
Maintenance Note: Determine the left and right side of the machine from the normal operating position. Recommended Maintenance Schedule Maintenance Service Interval Maintenance Procedure 8 hours3 • • • • • 25 hours • Check hydraulic oil level • Inspect hydraulic lines for leaks 75 hours • Change engine oil1, 2 • Check wheel lug nut torque (50 ft.-lb.
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 and disconnect the negative battery cable before you do any maintenance. Opening the Access Covers 2. Release the two locking tabs on top of the rear access cover (Fig. 19). Removing the Front Access Cover 3. Grasping the handle, pull the cover up and back to swing it open (Fig. 19). 1.
5. Gently slide the primary filter out of the air cleaner body (Fig. 22). Avoid knocking the filter into the side of the body. Do not remove the safety filter, unless you intend to replace it as well. 6. Inspect the primary filter for damage or excessive dirt by looking into the filter while shining a bright light on the outside of the filter. Holes in the filter will appear as bright spots. If the filter is dirty or damaged, replace it with a new one. Important Never attempt to clean the safety filter.
Oil Type: Diesel engine oil (API service CD or higher) Crankcase Capacity: w/filter, 0.84 gal. (3.2 l) Viscosity: See table below USE THESE SAE VISCOSITY OILS 1 10W-30, 15W-40 2 mĆ4593 5W-20, 5W-30 Figure 23 1. Clamp 2. Oil drain tube –20 °F 0 –30 °C –20 20 32 40 –10 3 0 80 60 10 20 3. Plug 100 30 7. Open the rear access cover; refer to Opening the Rear Access Cover, page 24. 40 Changing the Oil 8.
parts water and one part baking soda. Apply a light coating of grease to the battery terminals to reduce corrosion. 3 Warning Battery terminals or metal tools could short against metal components, causing sparks. Sparks can cause the battery gasses to explode, resulting in personal injury. 1 2 • When removing or installing the battery, do not allow the battery terminals to touch any metal parts of the traction unit.
1. Check the electrolyte level; refer to Checking the Electrolyte Level, page 27. Danger 2. Make sure the filler caps are installed in the battery. Charge the battery for 10 to 15 minutes at 25 to 30 amps or 30 minutes at 4 to 6 amps. Do not overcharge the battery. Battery electrolyte contains sulfuric acid which is a deadly poison and causes severe burns. • Do not drink electrolyte and avoid contact with skin, eyes or clothing.
6. Remove the drain plug from the bottom of the hydraulic tank and allow the fluid to completely drain out. 8. Install the replacement hydraulic filter onto the filter adapter. Tighten it clockwise until the rubber gasket contacts the filter adapter, then tighten the filter an additional 1/2 turn (Fig. 27). 7. Install the drain plug. 9. Clean up any spilled fluid. 8.
3. Open the bleed screw on top of the fuel filter to fill the bowl with fuel (Fig. 29). 5. Remove the fuel filter with a filter wrench (Fig. 28). 2 1 2 1 m–3708 Figure 29 1. Fuel filter Figure 28 1. Drain valve 2. Bleed screw 2. Fuel filter 4. Close the bleed screw when fuel comes out in a steady stream. 5. On left side of the engine, locate the air vent plug on top of the fuel injection pump and connect a hose to it, leading to a drain pan. 6. Clean the mounting surface. 7.
Cleaning and Storage 3. Open the rear access cover; refer to Opening the Rear Access Cover, page 24. 1. Lower the loader arms and stop the engine. Remove the key. 4. Shut off the fuel valve in the hose near the bottom of the fuel tank as illustrated in Figure 30. 2. Remove dirt and grime from the external parts of the entire traction unit, especially the engine. Clean dirt and chaff from the outside of the engine. 1 Important You can wash the traction unit with mild detergent and water.
Troubleshooting Problem The starter does not crank. The engine cranks, but will not start. Possible Causes Corrective Action 1. The electrical connections are corroded or loose. 1. Check the electrical connections for good contact. 2. A fuse is blown or loose. 2. Correct or replace the fuse. 3. The relay or switch is damaged. 3. Contact your Authorized Service Dealer. 4. The battery is discharged. 4. Charge the battery or replace it. 5. A damaged starter or starter solenoid. 5.
Problem The engine cranks, but will not start (continued). The engine starts, but does not keep running. Possible Causes Corrective Action 8. Slow cranking speed. 8. Check the battery, oil viscosity and starting motor (contact your Authorized Service Dealer). 9. The air cleaner element is dirty. 9. Clean or replace. 10.Low compression. 10.Contact your Authorized Service Dealer. 11. The injection nozzles are damaged. 11. Contact your Authorized Service Dealer. 12.The fuel filter is clogged. 12.
Problem The engine runs, but knocks or misses. The engine will not idle. Possible Causes Corrective Action 1. Dirt, water, stale fuel, or incorrect fuel is in the fuel system. 1. Drain and flush the fuel system; add fresh fuel. 2. Engine overheating. 2. Refer to Engine Overheats. 3. There is air in the fuel. 3. Bleed nozzles and check for air leaks at the fuel hose connections and fittings between the fuel tank and engine. 4. The injection nozzles are damaged. 4.
Problem The engine overheats. The engine loses power. Possible Causes Corrective Action 1. More coolant is needed. 1. Check and add coolant. 2. Restricted air flow to the radiator. 2. Inspect and clean the radiator screen with every use. 3. The crankcase oil level is incorrect. 3. Fill or drain to the full mark. 4. Excessive loading. 4. Reduce load; use lower ground speed. 5. The thermostat is damaged. 5. Contact your Authorized Service Dealer. 6. The fan belt is loose or broken. 6.
Problem Excessive black smoke from exhaust. Excessive white smoke from exhaust. Traction unit does not drive. Possible Causes Corrective Action 1. The air cleaner element is dirty. 1. Clean or replace. 2. The injection pump timing is incorrect. 2. Contact your Authorized Service Dealer. 3. Incorrect fuel is in the fuel system. 3. Drain the fuel system and refill with specified fuel. 4. The injection nozzles are damaged. 4. Contact your Authorized Service Dealer. 5.
Schematics Electrical Schematic 37
Hydraulic Schematic 38
The Toro Dingor Product Line Warranty A One-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 Dingo Product (“Product”) to be free from defects in materials or workmanship.
