Form No. 3357-140 Rev A TX 420 and TX 425 Compact Utility Loader Model No. 22331—Serial No. 280000001 and Up Model No. 22332—Serial No. 280000001 and Up Register at www.Toro.com.
Contents This spark ignition system complies with Canadian ICES-002. Introduction................................................................. 2 Safety ........................................................................... 3 Safe Operating Practices ....................................... 3 Sound Pressure..................................................... 6 Sound Power ........................................................ 6 Vibration...........................................................
Safety Belt Maintenance.................................................... 38 Inspecting/Replacing the Drive Belt ................... 38 Controls System Maintenance................................. 40 Adjusting the Traction Control Alignment ...................................................... 40 Adjusting the Traction Control Neutral Position.......................................................... 40 Adjusting the Tracking of the Traction Control, Full Forward Position........................
• Inspect the area where the equipment is to be used and remove all objects such as rocks, toys, and wire which can be thrown by the machine. • Use extra care when handling gasoline and other fuels. They are flammable and vapors are explosive. – Use only an approved container – Never remove the gas cap or add fuel with the engine running. Allow the engine to cool before refueling. Do not smoke. – Never refuel or drain the machine indoors.
• • • • • • • • • • • those in the attachment Operator’s Manual. See also the Slope Chart , page 7. Operate up and down slopes with the heavy end of the traction unit uphill. Weight distribution changes. An empty bucket will make the rear of the traction unit the heavy end, and a full bucket will make the front of the traction unit the heavy end. Most other attachments will make the front of traction unit the heavy end. Raising the loader arms on a slope will affect the stability of the machine.
– Keep container nozzle in contact with the tank during filling. • Stop and inspect the equipment if you strike an object. Make any necessary repairs before restarting. • Use only genuine Toro replacement parts to ensure that original standards are maintained. • Battery acid is poisonous and can cause burns. Avoid contact with skin, eyes, and clothing. Protect your face, eyes, and clothing when working with a battery. • Battery gases can explode. Keep cigarettes, sparks and flames away from the battery.
Slope Chart 7
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. 108-4635 5. Throttle 9. Fuel 13. Engine—run 1. Read the Operator’s Manual. 2. Fast 3. Continuous variable setting 6. On 7. Choke 10. Hydraulic oil temperature 11. Hour meter 4. Slow 8. Off 12. Engine—start 14. Engine—stop 15. Warning—read the Operator’s Manual. 16.
104-9950 104-9954 1. Warning—read the Operator’s Manual; maximum load rating of 500 lb. (228 Kg). 1. Crushing hazard of hands or feet—install the cylinder lock. 104-9951 1. Hot surface/burn hazard—wear protective gloves when handling the hydraulic couplers and read the Operator’s Manual for information on handling hydraulic components. 108-4636 1. Auxiliary hydraulics 2. Locked reverse (detent) 3. Forward 4. Neutral (off) 108-4634 3. Reverse 4. Turn right or left 1. Traction Control 2.
93-7814 104-9983 1. Entanglement hazard, belt—stay away from moving parts. 1. Hot surface/burn hazard—stay a safe distance from the hot surface. 93-6686 1. Hydraulic oil 2. Read the Operator’s Manual. 93-9084 1. Lift point 2.
Setup Important: Do not allow the battery posts to touch the frame or hydraulic lines or it may cause sparks. 1 4. Clean the top of the battery and remove the vent caps (Figure 3). 5. Slowly pour electrolyte into each battery cell until the level is up to the lower part of the tube (Figure 3). Activating the Battery Important: Do not overfill the battery because electrolyte (sulfuric acid) can cause severe corrosion and damage to the chassis.
Note: Ensure that the battery cables do not contact any sharp edges or each other. Charging the battery produces gasses that can explode. 12. Close the rear access cover. 2 Never smoke near the battery and keep sparks and flames away from battery. 7. When the battery is fully charged, unplug the charger from the electrical outlet, then disconnect the charger leads from the battery posts (Figure 4). Checking Fluid Levels No Parts Required 8.
Product Overview Figure 6 1. 2. 3. 4. Track Track adjustment chamber Lift cylinder Cylinder lock 5. 6. 7. 8. Loader arms 9. Mount plate Hood 10. Tie-down/lift loop Auxiliary hydraulic couplers 11. Control panel Tilt cylinder 12. Rear access cover 13. Fuel tank 14. Reverse safety plate Controls To stop the engine, rotate the key to the off position. Become familiar with all the controls (Figure 7) before you start the engine and operate the traction unit.
Traction Control G008131 Figure 11 Figure 8 • To turn left, rotate the traction control counterclockwise (Figure 12). 1. Reference bar (does not move to give you a reference point and a fixed handle to hold while operating the traction unit) 2. Traction control (moves to control the machine) • To move forward, move the traction control forward (Figure 9). G008132 Figure 12 • To stop, release the traction control (Figure 8).
To operate a hydraulic attachment in reverse direction, rotate the hydraulics lever rearward, then move it left into the upper slot (Figure 15, number 2). If you release the lever while in the forward position, the lever will automatically return to the neutral position (Figure 15, number 3). If it is in the reverse position, it will remain there until you pull it out of the slot. Figure 13 1. Lower the loader arms 2. Raise the loader arms 3. Tilt the attachment rearward 4. Tilt the attachment forward 5.
Hydraulic Oil Temperature Light (Dingo TX 425 only) If the hydraulic oil gets too hot, this light illuminates and an audible alarm sounds. If this happens, stop the engine and allow the traction unit to cool. Hour Meter/Tachometer When the engine is off, the hour meter/tachometer displays the number of hours of operation that have been logged on the traction unit. When the engine is running, it displays the speed of the engine in revolutions per minute (rpm).
Specifications Note: Specifications and design are subject to change without notice. TX 420, Model 22331 Width 34 inches (86 cm) Length 71 inches (180 cm) Height 46 inches (117 cm) Weight 1880 lb (853 Kg) Operating capacity 500 lb (227 Kg) Tipping capacity 1480 lb (671 Kg) Wheelbase 31.
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.
Operation In certain conditions during fueling, static electricity can be released causing a spark which can ignite the gasoline vapors. A fire or explosion from gasoline can burn you and others and can damage property. Note: Determine the left and right sides of the machine from the normal operating position. Important: 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.
chance of varnish deposits in the fuel system, use fuel stabilizer at all times. Filling the Fuel Tank 1. Park the traction unit on a level surface, lower the loader arms, and stop the engine. 2. Remove the key and allow the engine to cool. 3. Clean around the fuel tank cap and remove it. 4. Add unleaded gasoline to the fuel tank, until the level is just below the bottom of the filler neck. Figure 18 1. Filler cap Important: This space in the tank allows gasoline to expand.
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). Note: If outdoor temperature is below freezing, store the traction unit in a garage to keep it warmer and aid in starting. Stopping the Engine 1. Move the throttle lever to the slow (turtle) position. Figure 19 1. Filler neck cap 2. Lower the loader arms to the ground. 2. Dipstick 3.
1 3 G004182 2 Figure 21 1. Cylinder lock 2. Lift cylinder 3. Clevis pin 4. Hairpin cotter Figure 20 1. Left tow valve (right track) 2. Right tow valve (left track) 4. Tow the traction unit as required. 5. Lower the cylinder lock over the cylinder rod and secure it with the clevis pin and hairpin cotter (Figure 21). 5. When the traction unit has been repaired, close the tow valves before operating it. 6. Slowly lower the loader arms until cylinder lock contacts the cylinder body and rod end.
Installing an Attachment Important: Use only Toro-approved attachments. Attachments can change the stability and the operating characteristics of the traction unit. The warranty of the traction unit may be voided if used with unapproved attachments. Important: Before installing the attachment, ensure that the mount plates are free of any dirt or debris and that the pins rotate freely. If the pins do not rotate freely, grease them. 1.
Important: Connect the attachment hoses together to prevent hydraulic system contamination during storage. 6. Push the attachment male connector into the female connector on the traction unit. Note: When you connect the attachment male connector first, you will relieve any pressure built up in the attachment. 6. Install the protective covers onto the hydraulic couplers on the traction unit. 7. Start the engine, tilt the mount plate forward, and back the traction unit away from the attachment.
Maintenance Note: Determine the left and right sides of the machine from the normal operating position. Recommended Maintenance Schedule(s) Maintenance Service Interval Maintenance Procedure After the first 8 hours • Replace the hydraulic filter. After the first 50 hours • Change the engine oil and filter. • Check and adjust the track tension. Before each use or daily Every 25 hours • • • • • • Check the engine oil level. Grease the traction unit. (Grease immediately after every washing.
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. Premaintenance Procedures 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 If the engine has been running the heat shield will be very hot and could burn you. Allow the traction unit cool completely before touching the heat shield. 1. Open the hood and remove both side screens. Figure 27 2. Loosen the bolts securing the front weight (Figure 29). 1. Hand knob 2. Tilt the rear access cover down and remove to access the internal components (Figure 27). Closing the Rear Access Cover 1.
11. Tighten the bolts securing the front weight (Figure 29). 12. Install the side screens and close the hood. Figure 30 1. Front screen 2. Bolts (left side bolt not shown) 6. Remove the shoulder bolts and nuts securing the oil cooler to the top of the front screen (Figure 31). Figure 31 1. Nut 2. Oil cooler 3. Front screen 4. Shoulder bolts 7. Remove the front screen. 8. When finished, install the front screen with the 4 bolts removed previously. 9.
Lubrication Engine Maintenance Greasing the Traction Unit Servicing the Air Cleaner Service Interval: Before each use or daily (Grease immediately after every washing.) Service Interval: Every 25 hours—Clean the foam air filter element and check the paper element for damage. Every 100 hours—Replace the paper air filter element. Grease Type: General-purpose grease. 1. Lower the loader arms and stop the engine. Remove the key. 2. Clean the grease fittings with a rag.
Cleaning the Foam Pre-filter 3. Install the cover, spacer and secure it with the cover nut (Figure 34). Torque the nut to 95 inch-lb (11 N-m). Important: Replace the foam element if it is torn or worn. 4. Install the air cleaner cover and secure with the knob (Figure 34). 1. Wash the foam pre-filter in liquid soap and warm water. When clean, rinse it thoroughly. 5. Close the hood. 2. Dry the pre-filter by squeezing it in a clean cloth (do not wring). Servicing the Engine Oil 3.
Components will be hot if the traction unit has been running. If you touch hot components you may be burned. Allow the traction unit to cool before performing maintenance or touching components under the hood. 4. Remove the drain plug (Figure 38). Figure 39 1. Oil filter 4. Pour new oil of the proper type through the center hole of the filter. Stop pouring when the oil reaches the bottom of the threads. 5. Allow a minute or two for the oil to be absorbed by filter material, then pour off the excess oil.
Fuel System Maintenance Changing the Fuel Filter Service Interval: Every 200 hours/Yearly (whichever comes first) 1. Lower the loader arms, stop the engine, and remove the key. Figure 40 1. Spark plug wire 2. Open the hood and remove the left side screen. 2. Spark plug 3. Loosen the tank cap to relieve pressure. 4. Clamp the fuel lines on both sides of the fuel filter (Figure 42). 4. Clean around the spark plugs. 5. Remove both spark plugs and metal washers. Checking the Spark Plugs 1.
Electrical System Maintenance Servicing the Battery Service Interval: Every 100 hours—Check the battery electrolyte level (replacement battery only). Figure 42 1. Filter Every 100 hours—Check the battery cable connections. 2. Hose clamp Always keep the battery clean and fully charged. Use a paper towel to clean the battery case. If the battery terminals are corroded, clean them with a solution of four parts water and one part baking soda.
level is up to the Upper line (Figure 43) on the battery case. 6. Install the battery filler caps. 2 Charging the Battery 3 1 Charging the battery produces gasses that can explode. G003794 Figure 43 1. Filler caps 2. Upper line Never smoke near the battery and keep sparks and flames away from battery. 3. Lower line Important: Always keep the battery fully charged (1.265 specific gravity). This is especially important to prevent battery damage when the temperature is below 32°F (0°C). 4.
Drive System Maintenance Servicing the Tracks Service Interval: After the first 50 hours—Check and adjust the track tension. Before each use or daily—Clean the tracks. Before each use or daily—Check the tracks for excessive wear (If the tracks are worn, replace them.) Figure 45 1. Track 2. Tension wheel Every 100 hours—Check and adjust the track tension. Every 250 hours/Yearly (whichever comes first)—Check and grease the road wheels. 3. Road wheels 4.
Figure 47 1. Locking bolt 2. Tensioning screw 3. Tension tube 4. Tension wheel Figure 48 4. Using a 1/2 inch drive socket (Figure 48), turn the tensioning screw counter-clockwise until the distance between the tension nut and the back of the tension tube (Figure 46) is 2-3/4 inches (7 cm). 1. 2. 3. 4. 5. Align the closest notch in the tension screw to the locking bolt hole and secure the screw with the locking bolt and nut (Figure 47). Track 1/2 inch socket Tension wheel Fork tube 5. 6. 7. 8.
Replacing the Tracks (TX 425, Model 22307) inside the wheels, then fill this area on each side of each wheel with grease. 11. Install the large washers on the wheels over the grease. When the tracks are badly worn, replace them. 1. Lower the loader arms, stop the engine, and remove the key. 12. Install the inner tension wheel and secure it with the nut removed previously (Figure 49). 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.
Belt Maintenance Inspecting/Replacing the Drive Belt Service Interval: Every 25 hours—Inspect the drive belt for wear or damage. Every 200 hours—Replace the drive belt. Replace the belt if you find any signs of wear, cracks, or damage or after 200 operating hours, whichever comes first. Figure 51 1. Road wheel 2. Gasket 3. Bolt 4. Road wheel cap 5. Snap ring 6. Add grease under the cap To replace the drive belt, complete the following procedure: 4.
Figure 53 1. Idler pulley assembly 2. Drive belt routing 5. Remove the belt from the three pulleys (Figure 54). Figure 52 1. Spring removal tool 2. Drive belt 4. Idler pulley 5. Engine (see-through for illustrative purposes) Figure 54 3. Idler pulley spring 6. Install a new drive belt around the three pulleys (Figure 53). 4. Remove the idler pulley spring from the idler pulley assembly (Figure 53). 7. Install the end of the idler pulley spring to the arm on the idler pulley assembly. 8.
Controls System Maintenance The factory adjusts the controls before shipping the traction unit. However, after many hours of use, you may need to adjust the traction control alignment, the neutral position of the traction control, and the tracking of the traction control in the full forward position. Figure 56 Important: To adjust the controls properly, complete each procedure in the order listed. 1. Traction control 2. Stem , bolt and nut 5.
1. Drive the traction unit with the traction control against the reference bar, noting which direction the traction unit veers. 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 (Figure 59). 4. If the traction unit veers to the right, loosen the left jam nut and adjust the tracking set screw on the front of the traction control (Figure 59). Figure 58 1. Traction rod 2. Jam nut 4.
Hydraulic System Maintenance Hydraulic fluid escaping under pressure can penetrate skin and cause injury. Fluid injected into the skin must be surgically removed within a few hours by a doctor familiar with this form of injury or gangrene may result. Replacing the Hydraulic Filter Service Interval: After the first 8 hours • Keep your body and hands away from pin hole leaks or nozzles that eject high pressure hydraulic fluid.
11. Stop the engine. 12. Check the hydraulic fluid level and top it off if necessary; refer to Checking Hydraulic Fluid. 13. Close the hood. Checking the Hydraulic Lines Service Interval: Every 100 hours—Check the hydraulic lines for leaks, loose fittings, kinked lines, loose mounting supports, wear, weather, and chemical deterioration. (Make necessary repairs before operating.) Figure 61 1. Filler neck cap 2.
Cleaning the Chassis Cleaning Service Interval: Every 100 hours—Check for dirt build-up in the chassis. Removing Debris from the Traction Unit 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.
21. Replace the rear panel and secure it with the six bolts and nuts removed previously (Figure 63). 22. Secure the battery tray with the bolts and washers removed previously. 23. Install the side weights with the bolts, washers, and lock washers removed previously (Figure 63). 24. Close the rear access cover. 25. Lower the traction unit to the ground. Figure 64 1. Black wire 2. Orange wire 13. Carefully remove the tank and set it upright to keep from spilling the gasoline.
Storage D. Restart the engine and run it until it stops. E. Choke the engine. 1. Lower the loader arms, stop the engine, and remove the key. F. Start and run the engine until it will not start again. 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 cylinder head fins and blower housing. G. Dispose of fuel properly. Recycle as per local codes.
Troubleshooting Problem The starter does not crank The engine will not start, starts hard, or fails to keep running. Possible Cause 1. The battery is discharged. 1. Charge the battery or replace it. 2. The electrical connections are corroded or loose. 3. The relay or switch is damaged. 2. Check the electrical connections for good contact. 3. Contact your Authorized Service Dealer. 1. The fuel tank is empty. 1. Fill the fuel tank with gasoline. 2. The choke is not on. 3. The air cleaner is dirty. 2.
Schematics Electrical Schematic (Rev.
Hydraulic Schematic (Rev.
Notes: 50
Notes: 51
The Toro Compact Utility Loader Warranty A One-Year Limited Warranty Compact Utility Loader (CUL) Products Conditions and Products Covered The Toro® Company and its affiliate, Toro Warranty Company, pursuant to an agreement between them, jointly warrant your Toro Compact Utility Loader (CUL) (“Product”) to be free from defects in materials or workmanship.
