Form No. 3326-732 TX 420 Dingo Compact Utility Loader Model No.
Warning Checking the Hydraulic Fluid . . . . . . . . . . . . . . . Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Traction Unit Overview . . . . . . . . . . . . . . . . . . . . Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Starting and Stopping the Engine . . . . . . . . . . . . Driving Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stopping the Traction Unit . . . . . . . . . . . . . . . . . Moving a Non-functioning Traction Unit .
Read this manual carefully to learn how to operate and maintain your product correctly. Reading this manual will help you and others avoid personal injury and damage to the product. Although we design, produce and market safe, state-of-the-art products, you are responsible for using the product properly and safely. You are also responsible for training persons, who you allow to use the product, about safe operation.
• Slow down and use extra care on hillsides. Be sure to travel in the recommended direction on hillsides. Turf conditions can affect the machine’s stability. • Keep hands and feet away from moving parts. If possible, do not make adjustments with the engine running. • Slow down and use caution when making turns and when changing directions on slopes. • Charge batteries in an open well ventilated area, away from spark and flames. Unplug the charger before connecting or disconnecting it from the battery.
Slope Operation Service Slopes and trailer ramps are a major factor related to loss-of-control and tip-over accidents, which can result in severe injury or death. All slopes require extra caution. • If any maintenance or repair requires the loader arms to be in the raised position, secure the arms in the raised position with the hydraulic cylinder lock.
Slope Chart M 4402 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. Part No. 104-2842 Part No. 100-6140 Part No. 100-6132 Part No. 100-6138 Part No. 100-6136 Part No. 100-6141 Part No. 100-6135 Part No.
Part No. 93-9084 Part No. 100-6101 1. Tie-down /lift point Assembly Activating the Battery Warning Part No. 104-2837 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. The traction unit is shipped with a dry battery. Purchase bulk electrolyte with 1.260 specific gravity from a local battery supply outlet. 1.
Important Do not allow the battery posts to touch the frame or hydraulic lines or it may cause sparks. 4 Danger 2 3 Battery electrolyte contains sulfuric acid which is a deadly poison and causes severe burns. 1 • Do not drink electrolyte and avoid contact with skin, eyes or clothing. Wear safety glasses to shield your eyes and robber gloves to protect your hands. • Fill the battery where clean water is always available for flushing the skin. 4. Remove filler caps from the battery.
Note: Ensure that the battery cables do not contact any sharp edges or each other. 12. Close the rear access cover. Specifications Width 34 inches (86 cm) Length 71 inches (180 cm) Height 43 inches (109 cm) Weight 1830 lbs (830 Kg) Operating capacity 500 lbs (227 Kg) Tipping capacity 1480 lbs (671 Kg) Wheelbase 31.
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 4 1. Oil dipstick 8. Close the hood. 2.
Operation Traction Unit Overview Figure 7 contains a front and back view of the traction unit. Familiarize yourself with all of the traction unit components listed in Figure 7. 6 5 11 10 7 4 8 3 14 2 m–4732 1 m 5241 9 13 12 Figure 7 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.
Controls Reference Bar Become familiar with all the controls (Fig. 8) before you start the engine and operate the traction unit. When driving the traction unit, use the reference bar as a handle and a leverage point for controlling the traction control and the auxiliary hydraulics lever. To ensure smooth, controlled operation, do not take both hands off of the reference bar while operating the traction unit. 5 6 7 8 9 10 11 Traction Control 3 To move forward, move the traction control forward.
5 Auxiliary Hydraulics Lever To operate a hydraulic attachment in the forward direction, rotate the auxiliary hydraulics lever rearward and pull it down to the reference bar (Fig. 12, number 2). 1 3 To operate a hydraulic attachment in reverse direction, rotate the hydraulics lever rearward, then move it left into the upper slot (Fig. 12, number 3).
Fuel Gauge Important If the engine is run at high speeds when the hydraulic system is cold (i.e., when the ambient air temperature is near freezing or lower), hydraulic system damage could occur. When starting the engine in cold conditions, allow the engine to run in the middle throttle position for 2 to 5 minutes before moving the throttle to fast (rabbit). This gauge measures the amount of fuel in the fuel tank.
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.
5. Rotate the cylinder lock up to the loader arm and secure it with the clevis pin and hairpin cotter (Fig. 15). 6. Lower the loader arms. 2 Using Attachments 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.
3. Move the auxiliary hydraulics lever into the detent position. 9. Move the auxiliary hydraulics lever to neutral. 4. Remove the protective covers from the hydraulic couplers on the traction unit. Removing an Attachment 1. Lower the attachment to the ground 5. Ensure that all foreign matter is cleaned from the hydraulic connectors. 2. Stop the engine. 6. Push the attachment male connector into the female connector on the traction unit. 3.
Maintenance Recommended Maintenance Schedule Maintenance Service Interval Maintenance Procedure 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 connections 200 hours • • • • Change engine oil filter (every other oil change)1, 4 Change hydraulic filter1, 3,
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 Before opening any of the covers, stop the engine and remove the key. Allow the engine to cool before opening any covers Opening the Hood 1.
Removing the Front Screen 2. Place the latch over the locking bracket (Fig. 20). 3. Pull the latch rearward and push it in to lock it in place (Fig. 20). Caution Removing a Side Screen If the engine has been running the heat shield will be very hot and could burn you. 1. Open the hood. Allow the traction unit cool completely before touching the heat shield. 2. Pull out and turn the two locking tabs on the inside of the side screen until they line up with the slots in the screen (Fig. 21). 1.
Adjusting the Controls 1 The factory adjusts the controls before shipping the traction unit. However, after many hours of use, you may need to adjust the neutral position of the traction control, the tracking of the traction control in the full forward position, and the reverse flow stop of the auxiliary hydraulics lever.
8. If the right track moves, lengthen or shorten the left traction rod until the track stops moving. 2. Remove the three bolts securing the left control panel cover and remove the cover (Fig. 27). 9. Tighten the jam nuts. 3. Loosen the jam nut on the adjustment bolt (Fig. 27). 10. Close the rear access cover. 11. Stop the engine and lower the traction unit to the ground.
1 2 1 3 4 2 5 m–1213 6 7 Figure 30 1. Paper element 8 2. Rubber seal m–4653 Installing the Filters Figure 28 1. 2. 3. 4. Knob Air cleaner cover Cover nut Cover 5. 6. 7. 8. Foam pre-filter Paper filter Rubber seal Air cleaner base Important To prevent engine damage, always operate the engine with the complete foam and paper air cleaner assembly installed. 1. Carefully slide the foam pre-filter onto the paper filter (Fig. 28). 5.
Changing the Oil Changing the Oil Filter 1. Start the engine and let it run for five minutes. This warms the oil so it drains better. Replace the oil filter every 200 hours or every other oil change. 2. Park the traction unit so that the drain side is slightly lower than the opposite side to ensure that the oil drains completely. Note: Change the oil filter more frequently when operating conditions are extremely hot, dusty, or sandy. 1. Drain the oil from the engine; refer to Changing the Oil, page 26.
Servicing the Tracks Check the tracks for excessive wear and clean them periodically. If the tracks are worn, replace them. 4 3 2 1 Cleaning the Tracks 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. m–4747 2. Stop the engine, and remove the key. Figure 34 3. Using a water hose or pressure washer, remove dirt from each track system. 1. Locking bolt 2. Tensioning screw 3. Fork tube 4.
10. Starting at the bottom of the tension wheel, install the track around the wheel by rotating the track rearward while pushing the lugs into the wheel. 5. Remove both spark plugs and metal washers. 11. Turn the tensioning screw counter-clockwise until the distance between the tension nut and the back of the fork tube (Fig. 36) is 2 3/4 in. (7 cm.). m–4775 1 2 1 m–3876 Figure 37 1. Spark plug wire 2. Spark plug Checking the Spark Plugs 1. Look at the center of both spark plugs (Fig. 38).
2. Open the hood and remove the left side screen; refer to Accessing the Engine and Internal Components, page 21. 3. Push the wires onto the spark plugs (Fig. 37). 4. Close the hood. 3. Loosen the tank cap to relieve pressure. Greasing the Traction Unit 4. Clamp the fuel lines on both sides of the fuel filter (Fig. 41). Grease all pivot joints every 8 operating hours and immediately after every washing. 5. Squeeze the ends of the hose clamps together and slide them away from the filter (Fig. 41).
8. Install the replacement hydraulic filter onto the filter adapter (Fig. 42). Tighten it clockwise until the rubber gasket contacts the filter adapter, then tighten the filter an additional 3/4 turn. 1. Lower the loader arms, stop the engine, and remove the key. 2. Remove the gasoline from the tank using a hand pump. 9. Clean up any spilled fluid. Note: Now is the best time to install a new fuel filter because the fuel tank is empty. 10.
13. Close the hood. Checking Hydraulic Lines 1 After every 100 operating hours, check the hydraulic lines and hoses for leaks, loose fittings, kinked lines, loose mounting supports, wear, weather, and chemical deterioration. Replace all moving hydraulic hoses every 1500 hours or 2 years, which ever comes first. Make necessary repairs before operating. 2 Warning m–5377 Figure 43 1. Filler neck cap 2. Dipstick Hydraulic fluid escaping under pressure can penetrate skin and cause injury.
Cleaning the Chassis 1 2 Over time, the chassis under the engine collects dirt and debris that must be removed. Using a flashlight, open the hood and inspect the area under the engine on a regular basis. When the debris is one to two inches deep, complete the following procedure (refer to Figure 46 throughout this procedure): 3 1262 Figure 45 1. Filler caps 2. Lower part of tube 3. Plates 5 1 3 2.
23. Install the side weights with the bolts, washers, and lock washers removed previously (Fig. 46). 2 24. Close the rear access cover. 1 25. Lower the traction unit to the ground. Storage 1. Lower the loader arms, set the loader valve lock, stop the engine, and remove the key. m–4776 Figure 47 1. Black wire 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’s cylinder head fins and blower housing.
D. Restart the engine and run it until it stops. E. Choke the engine. F. Start and run the engine until it will not start again. G. Dispose of fuel properly. Recycle as per local codes. Important Do not store stabilizer/conditioned gasoline over 90 days. 12. Check and tighten all bolts, nuts, and screws. Repair or replace any part that is damaged or defective. 13. Paint all scratched or bare metal surfaces. Paint is available from your Authorized Service Dealer. 14.
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.
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.
