Form No. 3352-999 Dingo) TX 420 and TX 425 Compact Utility Loader Model No. 22306—250000401 and Up Model No. 22307—250000401 and Up Operator’s Manual Register your product at www.Toro.
Warning Checking the Oil Level . . . . . . . . . . . . . . . . . . . . Removing Debris from the Traction Unit . . . . . . Checking the Hydraulic Fluid . . . . . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Traction Unit Overview . . . . . . . . . . . . . . . . . . . . Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting and Stopping the Engine . . . . . . . . . . . . Stopping the Traction Unit . . . . . . . . . . . . . . . .
or Service Representative provide exact information about your specific product. The two numbers are stamped into a plate mounted under the hood near the belt drive. Warning Engine exhaust contains carbon monoxide, an odorless, deadly poison that can kill you. For your convenience, write the product model and serial numbers in the space below. Do not run the engine indoors or in an enclosed area. Model No: Serial No. Training • Read the Operator’s Manual and other training material.
Operation • Do not carry a load with the arms raised. Always carry loads close to the ground. • Never run an engine in an enclosed area. • Do not over-load the attachment and always keep the load level when raising the loader arms. Logs, boards, and other items could roll down the loader arms, injuring you. • Only operate in good light, keeping away from holes and hidden hazards. • Be sure all drives are in neutral and parking brake is engaged before starting the engine.
• Disconnect the battery or remove the spark plug wires before making any repairs. Disconnect the negative terminal first and the positive last. Reconnect positive first and negative last. • 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. • Removing an attachment on a slope will make the rear of the traction unit heavy.
• Battery gases can explode. Keep cigarettes, sparks and flames away from the battery. • 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; never use your hands. Hydraulic fluid escaping under pressure can penetrate skin and cause injury requiring surgery within a few hours by a qualified surgeon or gangrene may result.
Slope Chart MĆ4402 7
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.
7-9309 1. Warning—read the Operator’s Manual for information on charging the battery; contains lead; do not discard. 2. Read the Operator’s Manual.
108-4670 108-4671 93-9084 1. Lift point 2.
Setup Charging the Battery Warning Warning Charging the battery produces gases that can explode. CALIFORNIA Never smoke near the battery and keep sparks and flames away from battery. 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. 4.
Specifications Attachments Many attachments are available for use with the traction unit. These attachments allow you to 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. Specifications and design are subject to change without notice.
Stability Data The following tables list the maximum slope recommended for the traction unit in the positions listed in the tables. Slopes over the listed degree may cause the traction unit to become unstable. The data in the tables assume that the loader arms are fully lowered; raised arms may affect the stability. In each attachment manual is a set of three stability ratings, one for each hill position.
Before Operating Important Do not use methanol, gasoline containing methanol, or gasohol containing more than 10% ethanol because the fuel system could be damaged. Do not mix oil with gasoline. Before operating, check the fuel and oil level, and remove debris from the traction unit. Also, ensure that the area is clear of people and debris. You should also know and have marked the locations of all utility lines.
6. Clean any debris build-up on the engine and in the oil cooler fins with a brush or blower. 2 Important It is preferable to blow dirt out, rather than washing it out. If water is used, keep it away from electrical items and hydraulic valves. Do not use a high-pressure washer. High-pressure washing can damage the electrical system and hydraulic valves or deplete grease. 1 m-5232 m–3219 7. Clean debris from the cooler fan grill on the hood. Figure 2 1. Oil dipstick 8. Close the hood. 2.
Operation Traction Unit Overview Figure 5 contains a front and back view of the traction unit. Familiarize yourself with all of the traction unit components listed in Figure 5. 6 5 11 10 7 4 8 3 14 2 m-4732 1 9 13 m-8216 12 Figure 5 1. 2. 3. 4. Track Track adjustment chamber Lift cylinder Cylinder lock 5. 6. 7. 8. Loader arms Hood Auxiliary hydraulic couplers Tilt cylinder 9. Mount plate 10. Tie-down/lift loop 11. Control panel 12. Rear access cover 13. Fuel tank 14.
Key Switch Loader Arm/Attachment Tilt Lever The key switch, used to start and stop the engine, has three positions: off, run, and start. To tilt the attachment forward, slowly move the lever to the right (Fig. 8). 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. To tilt the attachment rearward, slowly move the lever to the left (Fig. 8). To stop the engine, rotate the key to the off position.
1 2 After 50 hours and then every 100 hours thereafter (that is at 150, 250, 350, etc.) the screen displays CHG OIL to remind you to change the engine oil. After every 100 hours, the screen displays SVC to remind you to perform the other maintenance procedures based on a 100, 200, or 400 hour schedule. These reminders come on starting three hours prior to the service interval time and flash at regular intervals for six hours. 3 m–8218 Starting and Stopping the Engine Figure 9 1.
Stopping the Traction Unit Using the Cylinder Lock To stop the traction unit, release the traction control, move the throttle lever to slow (turtle), lower loader arms to the ground, and stop the engine. Set the parking brake and remove the key. Warning The loader arms may lower when in the raised position crushing anyone under them. Caution Install the cylinder lock before performing maintenance that requires raised loader arms.
Using Attachments Warning Important If you are using an attachment with a serial number of 200999999 or earlier, the manual for the attachment may contain information specific to the use of the attachment with other Dingo models, such as settings for the flow divider control and speed selector lever and the use of a counterweight on the traction unit. These systems are built into the Dingo TX, and you should ignore any references to them.
2. Stop the engine. Note: When you connect the attachment male connector first, you will relieve any pressure build up in the attachment. 3. Disengage the quick attach pins by turning them to the outside. 4. If the attachment uses hydraulics, move the auxiliary hydraulics lever forward, back and forth, and back to neutral to relieve pressure at the hydraulic couplers. Warning Hydraulic fluid escaping under pressure can penetrate skin and cause injury.
Maintenance Recommended Maintenance Schedule Maintenance Service Interval Maintenance Procedure Grease the traction unit Check engine oil level Check for loose fasteners Inspect the tracks for damage or wear 8 hours • • • • 25 hours • Clean the foam pre-filter and the paper air filter1 • Check hydraulic oil level6 • Inspect hydraulic lines for leaks 100 hours • • • • • Change engine oil1, 2 Check battery electrolyte level Replace the paper air filter1 Adjust the track tension Check battery cable con
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 wire from the spark plug before you do any maintenance. Set the wire aside so that it does not accidentally contact the spark plug. Accessing the Engine and Internal Components 2 3 Before opening any of the covers, stop the engine and remove the key.
Removing the Front Screen Caution If the engine has been running the heat shield will be very hot and could burn you. 1 Allow the traction unit cool completely before touching the heat shield. 1. Open the hood and remove both side screens. m–7675 Figure 17 2. Loosen the bolts securing the front weight (Fig. 19). 1. Hand knob 3 4 Closing the Rear Access Cover 1 1. Move the rear access cover in place over the back of the traction unit making sure the tabs line up in the slots. 2.
7. Remove the front screen. 1 2 4 4 1 2 3 m–7878 m–5921 Figure 22 Figure 21 1. Nut 2. Oil cooler 1. Front of the control, out of alignment 3. Front screen 4. Shoulder bolts 2. Reference bar 4. If the front of the traction control does not rest square and flush with the reference bar, loosen the flange nut and bolt in the stem of the traction control (Fig. 23). 8. When finished, install the front screen with the 4 bolts removed previously. 9.
1. Drive the traction unit with the traction control against the reference bar, noting which direction the traction unit veers. 1. Lift/support the traction unit so that both tracks are off of the ground. 2. Open the rear access cover; refer to Opening the Rear Access Cover, page 24. 2. Release the traction control. 3. If the traction unit veers to the left, loosen the right jam nut and adjust the tracking set screw on the front of the traction control (Fig. 26). 3.
5. Lightly tap the paper filter on a flat surface to remove dust and dirt (Fig. 29). 1 2 6. Inspect the paper filter for tears, an oily film, and damage to the rubber seal. 4 3 Important Never clean the paper element with pressurized air or liquids, such as solvent, gas, or kerosene. Replace the paper element if it is damaged, or cannot be cleaned thoroughly (i.e., after approximately 100 operating hours). 5 6 7 9 8 1 2 m–7883 m–1213 Figure 27 1. 2. 3. 4. 5.
USE THESE SAE VISCOSITY OILS Note: Dispose of the used oil at a certified recycling center. 6. Remove the oil fill cap and slowly pour approximately 80% of the specified amount of oil in through the valve cover. 10W-30, 10W-40 5W-20, 5W-30 –20 °F 0 –30 °C –20 20 7. Check the oil level; refer to Checking the Oil Level, page 15. 32 40 –10 0 80 60 10 20 8. Slowly add additional oil to bring the level to the F (full) mark on the dipstick. 100 30 9. Replace the fill cap.
8. Fill the crankcase with the proper type of new oil; refer to Changing the Oil, page 29. m–4775 1 Servicing the Tracks Check the tracks for excessive wear and clean them periodically. If the tracks are worn, replace them. Check the road wheels yearly. Cleaning the Tracks Figure 33 1. With a bucket on the loader arms, lower the bucket to the ground so that the front of the traction unit lifts off of the ground a few inches. 1. 2-3/4 inches (7 cm) 1.
Replacing the Tracks (TX 425, Model 22307) 3. Remove the locking bolt and nut (Fig. 34). 4. Using a 1/2 inch drive socket, release the drive tension by turning the tensioning screw clockwise (Fig. 34 and 35). 1 When the tracks are badly worn, replace them. 1. Lower the loader arms, stop the engine, and remove the key. 3 2. Lift/support the side of the unit to be worked on so that the track is 3 to 4 inches (7.6 to 10 cm) off of the ground. 4 8 3. Remove the locking bolt and nut (Fig. 34). 4.
12. Install the inner tension wheel and secure it with the nut removed previously (Fig. 36). 1 13. Torque the nut to 300 ft-lb (407 N⋅m). 2 14. Install the new track, ensuring that the lugs in the track fit between the spacers in the middle of the drive sprocket (Fig. 36). 5 4 3 15. Install the outer tension wheel and secure it with the nut removed previously (Fig. 36). 6 16. Torque the nut to 300 ft-lb (407 N⋅m). 17.
Removing the Spark Plugs Installing the Spark Plugs 1. Lower the loader arms, stop the engine, and remove the key. 1. Thread the spark plugs into the spark plug holes. 2. Tighten the spark plugs to 20 ft-lb (27 N.m). 2. Open the hood; refer to Opening the Hood, page 24. 3. Push the wires onto the spark plugs (Fig. 39). 3. Pull the wires off of the spark plugs (Fig. 39). 4. Close the hood. 4. Clean around the spark plugs. Greasing the Traction Unit 5. Remove both spark plugs and metal washers.
Draining the Fuel Tank 1. Lower the loader arms, stop the engine, and remove the key. 2. Open the hood and remove the left side screen; refer to Accessing the Engine and Internal Components, page 24. Danger In certain conditions, gasoline is extremely flammable and highly explosive. A fire or explosion from gasoline can burn you and others and can damage property. 3. Loosen the tank cap to relieve pressure. 4. Clamp the fuel lines on both sides of the fuel filter (Fig. 43).
1. Position the traction unit on a level surface. 6. Apply a thin coat hydraulic fluid to the rubber gasket on the replacement filter. 2. Open the hood, refer to Opening the Hood, page 24. 7. Install the replacement hydraulic filter onto the filter adapter (Fig. 44). Tighten it clockwise until the rubber gasket contacts the filter adapter, then tighten the filter an additional 3/4 turn. 3. Install the cylinder lock, stop the engine, and remove the key. 4. Allow the traction unit to cool completely. 5.
9. Fill the hydraulic tank with approximately 12 US gallons (45.4 l) of 10W-30 detergent, diesel engine oil (API service CH-4 or higher); refer to Checking Hydraulic Fluid, page 16. parts water and one part baking soda. Apply a light coating of grease to the battery terminals to reduce corrosion. Voltage: 12 v, 450 Cold Cranking Amps 10. Start the engine and let it run for a few minutes. 11. Stop the engine. Checking the Electrolyte Level 12.
2. Remove the filler caps from the battery and connect a battery charger to the battery posts (Fig. 1). Charge the battery at a rate of 6 to 10 amperes for a minimum of 1 hour (12 volts). 7. Remove the six nuts and bolts securing the rear panel, removing the panel (Fig. 48). 3. Install the filler caps after the battery is fully charged. 9. Place a clamp on the fuel line, 2 inches from where it comes out of the fuel tank. 8. Loosen the tank cap to relieve pressure. 10.
19. On the right side of the tank, connect the orange wire to the center post and the black wire to the outside post (Fig. 49). A. Add a petroleum based stabilizer/conditioner to fuel in the tank. Follow mixing instructions from stabilizer manufacturer. (1 oz. per US gallon). Do not use an alcohol based stabilizer (ethanol or methanol). 20. Slide the tank all the way into the traction unit. Important The fuel line and wires must be away from the engine pulleys and the frame.
Troubleshooting PROBLEM Starter does not crank POSSIBLE CAUSES CORRECTIVE ACTION 1. Battery is dead. 1. Charge the battery. 2. Electrical connections are corroded or loose. 2. Check electrical connections for good contact. 3. Relay or switch is defective. 3. Contact Authorized Service Dealer. 1. Fuel tank is empty. 1. Fill fuel tank with gasoline. 2. Choke is not on. 2. Move choke lever fully forward. 3. Air cleaner is dirty. 3. Clean or replace air cleaner element. 4.
Schematics Electrical Schematic 40
Hydraulic Schematic 41 16 17 X 1 CV1 10 X 1 P 13 X 2 13 2RV4 A DISPLACEMENT A 16 M1 PORT B 0.73 CU IN 12 CC 0.36 CU IN 6 CC 32.3 CU IN 528 CC 0–1.28 CU IN 21 CC P 10 X 1 10 X 1 16 2465 PSI 3000 PSI 3050 PSI 2900 PSI 5 PSI 170 BARS 207 BARS 210 BARS 200 BARS .35 BARS BARS 13 X 2 T 64 17 LPM 42.4 21.0 11.2 5.5 GPM 10 P 8X1 P ** FLOWRATE CALCULATED AT 3100 RPM AND 98% EFFICIENCY.
The Toro Dingo) 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.
