Operator’s Manual MB TX 2500 Tracked Mud Buggy Model—Serial Range 68138—406660000 and Up 68138G—405600000 and Up 68138HD—407100000 and Up 3451-705A Original Instructions (EN) *3451-705* A
Disclaimers and Regulatory Information It is a violation of California Public Resource Code Section 4442 or 4443 to use or operate the engine on any forest-covered, brush-covered, or grass-covered land unless the engine is equipped with a spark arrester, as defined in Section 4442, maintained in effective working order or the engine is constructed, equipped, and maintained for the prevention of fire.
Throttle Control ............................................................................................................................. 3–3 Specifications .................................................................................................................................... 3–3 Attachments/Accessories............................................................................................................... 3–3 Chapter 4: Operation .....................................................
Hydraulic Lift System................................................................................................................. 5–26 Checking the Hydraulic Lines .................................................................................................. 5–29 Cleaning............................................................................................................................................ 5–30 Removing Debris .....................................................................
Chapter 1 Introduction Intended Use This machine is intended to be used by professional, hired operators in commercial applications. This machine is a stable, reliable, and productive machine for carrying and moving materials for any job site. It is primarily designed to move concrete, mortar, gravel, dirt, or debris around job sites. Using this product for purposes other than its intended use could prove dangerous to you and bystanders.
Manual Conventions This manual identifies potential hazards and has safety messages identified by the safetyalert symbol, which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions. g000502 This manual uses 2 words to highlight information. Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention.
Chapter 2 Safety General Safety • Read and understand the contents of this Operator’s Manual before starting the engine. • Do not operate the machine without all guards and other safety protective devices in place and functioning properly on the machine. • Park the machine on a level surface, lower the hopper, shut off the engine, and remove the key (if applicable) before leaving the operating position. • Keep your hands and feet away from moving parts.
Decal Part: 116-8775 Read the Operator’s Manual. Warning—fill to the bottom of the filler neck; do not overfill the tank. decal116-8775 Decal Part: 125-4967 Lift point decal125-4967 Decal Part: 132-8961 Battery charging condition Hour meter Hopper is raising. Hopper is lowering. Hopper is down. Hopper is lowering automatically.
Decal Part: 132-9051 Tie-down point decal132-9051 Decal Part: 132-9052 Power Auxiliary Logic decal132-9052 Decal Part: 133-8062 decal133-8062 Decal Part: 137-0575 Read the Operator’s Manual.
Decal Part: 137-8899 Read the Operator’s Manual. decal137-8899 Decal Part: 139-7219 decal139-7219 Parking brake—engate Asphyxiation hazard, poisonous fumes, or toxic gases—do not run the engine in an enclosed space. Warning—read the Operator’s Manual; wear hearing protection. Explosion hazard—shut off the engine; do not expose to fire or open flames while fueling. Warning—all operators should read the Operator’s Manual and be trained before operating the machine.
Warning—keep bystanders away; look behind and down when moving in reverse. Warning—engage the parking brake, shut off the engine, and remove the key before leaving the operators position. Raise the hopper. Lower the hopper. Right traction controls Engine-speed control Move the handles in to operate.
Chapter 3 Product Overview Hopper Hood Control panel Fuel-tank cap Operator platform Tracks g038268 Controls Choke Control ENGAGE the choke before starting a cold engine. DISENGAGE the choke when the engine is warm.
Drive Controls G375673 Dump Controls Dump hopper Lower hopper G375674 Key Switch Stop engine Run engine Start engine G375755 3451-705A Page 3–2 Product Overview: Controls
Parking Brake Engage Disengage g009465 Throttle Control g357324 Specifications Note: Specifications and design are subject to change without notice. Width 90.2 cm (35.5 inches) Length 268 cm (105.5 inches) Height 121.2 cm (47.7 inches) Weight 734 kg (1619 lb) Hopper capacity 0.45 m3 (16 cu.ft.) Maximum load 1134 kg (2500 lb) Discharge height 38.
Chapter 4 Operation Before Operation Before Operation Safety General Safety • Never allow children or untrained people to operate the machine. Local regulations may restrict the age of the operator. The owner is responsible for training all operators and mechanics. • Become familiar with the safe operation of the equipment, operator controls, and safety signs. • Inspect the area where you will use the machine and remove all objects that could interfere with the operation of the machine.
Before Operation Safety (continued) • If you spill fuel, do not attempt to start the engine; avoid creating any source of ignition until the fuel vapors have dissipated. • Do not fill containers inside a vehicle or on a truck or trailer bed with a plastic liner. Always place containers on the ground, away from your vehicle before filling. • Remove the equipment from the truck or trailer and refuel it while it is on the ground.
Fuel (continued) Filling the Fuel Tank 1. Clean the area around the fuel-tank cap. 2. Remove the cap. 3. Add fuel until it is at the bottom of the filler neck. Note: Do not fill the fuel tank completely full. The empty space in the tank allows the fuel to expand. 4. Install the cap. g038312 Performing Daily Maintenance Before starting the machine each day, perform the Each Use/Daily procedures listed in the Maintenance Schedule.
During Operation Safety (continued) • Never jerk the controls; use a steady motion. • Use care when approaching blind corners, shrubs, trees, or other objects that may obscure your vision. • Slow down and use caution when making turns and crossing roads and sidewalks with the machine. Always yield the right-of-way. • Operate the engine only in well-ventilated areas. Exhaust gasses contain carbon monoxide, which is lethal if inhaled. • Never leave a running machine unattended.
During Operation Safety (continued) • Operate up and down slopes with the heavy end of the machine uphill. Weight distribution changes with a full hopper. A full hopper makes the front of the machine the heavy end, so walk behind the machine with the full hopper uphill. • Identify hazards at the base of the slope. Do not operate the machine near drop-offs, ditches, embankments, water or other hazards. The machine could suddenly roll over if a wheel or track goes over the edge or the edge collapses.
Starting the Engine (continued) 5. When the engine starts , disengage the choke . IMPORTANT Do not engage the starter for more than 5 seconds at a time. If the engine fails to start, allow a 15-second cool-down period between attempts. Failure to follow these instructions can burn out the starter. Shutting Off the Engine G375756 1. Move the throttle between the FAST and SLOW positions. 2. Engage the parking brake. 3. Turn the key switch to the OFF position and remove the key.
Operator Platform (continued) • When loading or unloading the machine from a trailer for transport • Driving up slopes Operate the machine with the platform down for the following conditions: • Using the machine in most areas • Driving across slopes • Driving down slopes Lowering the Platform 1. Push the platform against the cushion to release pressure on the latch pin. 2. Pull the latch pin out and lower the platform.
Operator Platform (continued) Raising the Platform 1. Pull out the latch pin and raise the platform. 2. Release the latch pin to lock the platform in place. G384423 Operating the Hopper Hopper capacity: 1134 kg (2,500 lb) Do not exceed the load capacity of the machine. This machine normally operates on uneven, unpaved, bumpy, and/or inclined surfaces—adjust the load accordingly. 1. Position the machine where you intend to dump the load. 2. Dump the hopper by pushing the top of the dump switch . 3.
After Operation Safety (continued) • Do not touch parts that may be hot from operation. Allow them to cool before attempting to maintain, adjust, or service the machine. • Clean debris from drives, mufflers, and the engine to help prevent fires. Clean up oil or fuel spills. • Use care when loading or unloading the machine into a trailer or truck. Removing Debris from the Machine 1.
Lowering the Hopper without Power (continued) 4. Remove the access panel. G384893 5. Disconnect the hose fittings in the manifold block and allow the fluid to drain into the pan. Note: Dispose of the used fluid at a certified recycling center. 6. Connect the hose fittings. 7. Use a hoist or have 2 people hold up the hopper and remove the cylinder lock. 8. Carefully lower the hopper. 9. After making repairs, install the hoses to the manifold block fittings. 10. Add hydraulic fluid.
Raising the Hopper without Power (continued) 4. Remove the access panel. G384893 5. Disconnect the hose fittings in the manifold block and allow the fluid to drain into the pan. Note: Dispose of the used fluid at a certified recycling center. 6. Use a hoist or have 2 people hold up the hopper and install the cylinder lock. 7. After making repairs, install the hoses to the manifold block fittings. 8. Add hydraulic fluid. 9. Remove and store the cylinder lock.
Haul the Machine (continued) Selecting a Trailer WARNING Loading a machine onto a trailer or truck increases the possibility of tip-over and could cause serious injury or death. • Use only full-width ramps. • Ensure that the length of ramp is at least 4 times as long as the height of the trailer or truck bed to the ground. This ensures that ramp angle does not exceed 15 degrees on flat ground.
Haul the Machine (continued) 3. Lower the ramp(s). 4. Load the machine onto the trailer with the heavy end up the ramp, carrying loads low. • If the machine has a full hopper, drive the machine forward up the ramp • If the machine has an empty hopper, back the machine up the ramp . . g357132 5. Engage the parking brake and shut off the engine. 6. Use the metal tie-down loop to securely fasten the machine to the trailer or truck with straps, chains, cable, or ropes .
Chapter 5 Maintenance Note: Determine the left and right sides of the machine from the normal operating position. IMPORTANT Refer to your engine owner's manual for additional maintenance procedures. Maintenance Safety • Park the machine on a level surface, engage the parking brake, and shut off the engine. Wait for all movement to stop and allow the machine to cool before adjusting, servicing, cleaning, or storing the machine.
• Safely relieve all pressure in the hydraulic system before performing any work on the hydraulic system. Recommended Maintenance Schedule Maintenance Service Interval Maintenance Procedure Part No. Check the engine oil level., page 5–8 Clean the blower housing., page 5–10 Check the tracks., page 5–16 Before each use or daily Qty Description - - - - - - - - - Check the parking brake operation., page 5–22 - - - Check the hydraulic fluid for the drive system.
Maintenance Service Interval Maintenance Procedure Part No. Replace the drive belt., page 5– 19 Change the hydraulic fluid for the drive system., page 5–25 Qty Description 139-1295 1 Belt 108-1184 1 Toro premium transmission/ hydraulic fluid Change the hydraulic fluid for the lift system., page 5–28 114-4714 2 Toro hypr-oil 500 Change the hydraulic filters for the drive system., page 5–25 137-3772 2 Filter Change the hydraulic filters for the lift system.
Lifting the Machine Ensure that the hopper is empty before lifting the machine. 1. Place the platform in the raised position. 2. Hoist the machine using the 2 lift points under the hopper and the 2 rear tie-down points . Tilt the hopper forward to locate the 2 lift loops and attach a chain or straps at each of the loops. Note: Take up the slack in the chain or straps to properly balance the unit. G194436 Releasing the Cushion for Rear Access 1. Lower the platform. 2. Loosen the twist knobs 3.
Using the Cylinder Lock Installing the Cylinder Lock 1. Park the machine on a level surface, move the motion-control levers to the NEUTRAL-LOCK position, engage the parking brake, and fully raise the hopper. 2. Remove the 2 cotterless pins securing the cylinder lock to the machine. G375954 3. Slide the cylinder lock over the lift-cylinder rod and secure with the cotterless pins.
Using the Cylinder Lock (continued) 1. Start the machine. 2. Fully raise the hopper. 3. Shut off the engine. 4. Remove the cotterless pins securing the cylinder lock. 5. Place the cylinder lock on the posts inside the machine frame and secure with the cotterless pins. 6. Lower the hopper. G375954 Lubrication Greasing the Machine Grease Type: General-purpose grease. Note: Remove the blue protection caps, if applicable, before greasing and replace when finished. 1.
Engine Maintenance Servicing the Air Cleaner IMPORTANT Do not operate the engine without the air-cleaner element. Operating without an element causes damage to the engine. 1. Rotate the latches outward. 2. Remove the cover elements. to access the air-cleaner 3. Remove the cover to access the air-cleaner elements. 4. Remove the foam element element . 5. Service the foam element from the paper . A. Wash the foam element in warm water and detergent. B. Rinse it and allow it to air dry. C.
Engine Oil Service Engine Oil Specifications Crankcase capacity: 1.9 L (64 fl oz) Oil type: API classification SJ or later. Oil viscosity: Selected the oil viscosity according to ambient temperature in the table below. g017552 Checking the Engine-Oil Level G376333 1. Park the machine on a level surface, move the motion-control levers to the NEUTRAL-LOCK position, engage the parking brake, and lower the hopper. 2. Shut off the engine, and remove the key. Allow the engine to cool.
Engine Oil Service (continued) 3. Open the cowl. 4. Check the engine-oil level. Changing the Engine Oil and Filter 1. Park the machine on a level surface, move the motion-control levers to the NEUTRAL-LOCK position, engage the parking brake, raise the hopper, and install the cylinder lock. 2. Shut off the engine and remove the key. 3. Perform the following steps to change the engine oil: g185888 A. Remove the drain plug and allow all of the existing oil to drain out of the engine. B.
Replacing the Spark Plug 1. Remove the spark-plug wire. 2. Clean around spark plug and remove plug from cylinder head. Note: Replace a cracked, fouled, or dirty spark plug. Do not sand blast, scrape, or clean electrodes because engine damaged could result from grit entering the cylinder. 3. Set the air gap at 0.70 to 0.80 mm (0.028 to 0.031 inch) . Install the spark plug carefully by hand to avoid cross-threading. 4.
Fuel System Maintenance Replacing the Fuel Filter G376153 1. Park the machine on a level surface, move the motion-control levers to the NEUTRAL-LOCK position, engage the parking brake, and lower the hopper. 2. Shut off the engine, and remove the key. Allow the engine to cool. 3. Replace the fuel filter. Draining the Fuel Tank You can drain the fuel tank by either siphoning the fuel out or removing the fuel tank and pouring the fuel out of the fill neck. 1.
Removing the Fuel Tank 1. Lower the platform. 2. Release the cushion. 3. Remove the cross bracket 4. Remove the fuel tank operator platform. . and set it on the Note: Remove the fuel and vent lines from the top of the tank to move the fuel tank further from the machine. G186223 Electrical System Maintenance Electrical System Safety • Disconnect the battery before repairing the machine. Disconnect the negative terminal first and the positive last.
Battery Service (continued) Charging the Battery WARNING Charging the battery produces gasses that can explode. Never smoke near the battery and keep sparks and flames away from battery. IMPORTANT Always keep the battery fully charged (1.265 specific gravity). This is especially important to prevent battery damage when the temperature is below 0°C (32°F). 1. Remove the battery from the machine. 2. Perform the following steps to check the electrolyte level: A.
Battery Service (continued) 4. Charge the battery for 1 hour at 25 to 30 A or 6 hours at 4 to 6 A. IMPORTANT Do not overcharge the battery. Positive battery post Negative battery post Red (+) charger lead Black (-) charger lead g003792 5. When the battery is fully charged, unplug the charger from the electrical outlet, and disconnect the charger leads from the battery posts. 6. Install the battery onto the machine and connect the battery cables.
Replacing a Fuse (continued) Main power fuse (15 A) Auxiliary power fuse (15 A) Logic fuse (7.5 A) G376375 1. Release the cushion from the rear of the machine. 2. Pull out the fuse to remove or replace it. 3. Install the cushion to the rear of the machine. Note: Ensure that the correct-size fuse is installed. If a fuse blows a second time, check the component/circuit for a malfunction or a short or contact your Authorized Service Dealer. Drive System Maintenance Track Service Cleaning the Tracks 1.
Track Service (continued) 4. Using a water hose or pressure washer, remove dirt from each track system. IMPORTANT Ensure that you use high-pressure water to wash only the track area. Do not use a high-pressure washer to clean the rest of the machine. Do not use high-pressure water between the drive sprocket and the machine or you may damage the motor seals. High-pressure washing can damage the electrical system and hydraulic valves or deplete grease.
Track Service (continued) 2. Shut off the engine, and remove the key. Allow the engine to cool. 3. Clean the tracks with high-pressure water. IMPORTANT Ensure that you use high-pressure water to wash only the track area. Do not use a high-pressure washer to clean the rest of the machine. Do not use high pressure water between the drive sprocket and the machine or you may damage the motor seals. High-pressure washing can damage the electrical system and hydraulic valves or deplete grease. 4.
Track Service (continued) 4. Remove the retaining bolt for the tensioning screw. Front wheel Track Tensioning screw and retaining bolt Road wheel Drive sprocket g186008 5. Release the drive tension by turning the tensioning screw clockwise. 6. Remove the track at the top of the front wheel, peeling it off the wheel while rotating the track forward. 7. When the track is off the front wheel, remove it from the drive sprocket and road wheels. 8. Inspect the condition of the wheels.
Drive Belt Inspecting the Drive Belt 1. Park the machine on a level surface, move the motion-control levers to the NEUTRAL-LOCK position, engage the parking brake, and lower the hopper. 2. Shut off the engine, and remove the key. Allow the engine to cool. 3. Release the cushion and remove the fuel tank. 4. Inspect the belt. Replace the belt if it is worn. Note: The signs of a worn belt include squealing while the belt is rotating, frayed edges, burn marks, and cracks on the belt.
Drive Belt (continued) 7. Remove the 2 bolts and 2 nuts and loosen the 2 set screws on the coupler. Remove the gear pump from the pump mount. Note: You do not need to remove the fittings from the pump. Bolt (2) Pump mount Gear pump Nut (2) G189559 8. Remove the drive belt from the engine pulley and 2 transmission pulleys. Engine pulley Idler pulley Transmission pulley (2) Belt G189571 9. Route the new belt around the engine pulley and 2 transmission pulleys. 10. Install the gear pump. 11.
Controls Maintenance Adjusting the Motion-Control Levers If the motion-control levers do not align horizontally, adjust the right side motion-control lever. 1. Park the machine on a level surface, lower the hopper, engage the parking brake, shut off the engine, and remove the key. 2. Push the motion-control levers down out of the NEUTRAL-LOCK position. 3. Check if the right motion-control lever aligns horizontally with the left motion-control lever.
Brake Maintenance Checking the Parking Brake 1. Park the machine on a level surface, lower the hopper, and engage the parking brake. 2. Start the engine and move the throttle lever to the FAST position. 3. Move the motion-control levers forward. The machine should not move forward. If the machine moves forward, adjust the parking brake. 4. Release the parking brake. 5. Move the motion-control levers forward. The machine should move forward. If the machine does not move forward, adjust the parking brake. 6.
Hydraulic System Maintenance Hydraulic Drive System Hydraulic Drive System Fluid Specifications Hydraulic-Fluid type: Toro® HYPR-OIL™ 500 Hydraulic fluid capacity: 1.4 L (1.
Hydraulic Drive System (continued) Checking the Hydraulic-Fluid Level for the Drive System 1. Park the machine on a level surface, move the motion-control levers to the NEUTRAL-LOCK position, engage the parking brake, and lower the hopper. 2. Shut off the engine, and remove the key. Allow the engine to cool. 3. Open the cowl. 4. Use the sight window to check the fluid level in the expansion tank. Note: The fluid level should be at the fill line G376100 on the decal. 5.
Hydraulic Drive System (continued) Changing the Hydraulic Fluid and Filter for the Drive System 1. Park the machine on a level surface, move the motion-control levers to the NEUTRAL-LOCK position, engage the parking brake, and lower the hopper. 2. Shut off the engine, and remove the key. Allow the engine to cool. 3. Lower the cushion and remove the fuel tank. 4. Remove the 9 bolts (5 rear , 4 side ) from the skid plate and remove the skid plate. 5.
Hydraulic Drive System (continued) 14. Add hydraulic fluid to the expansion tank until it reaches the fluid line. IMPORTANT Do not overfill. 15. Install the expansion-tank cap. 16. Install the skid plate. 17. Install the fuel tank. 18. Start the engine and let it run for about 2 minutes to purge air from the system. 19. Shut off the engine and check for leaks.
Hydraulic Lift System (continued) • Toro PX Extended Life Hydraulic Fluid (refer to your Authorized Service Dealer for more information) • If either of the above Toro fluids are not available, you may use another Universal Tractor Hydraulic Fluid (UTHF), but they must be only conventional, petroleumbased products. The specifications must fall within the listed range for all the following material properties and the fluid should meet the listed industry standards.
Hydraulic Lift System (continued) 5. Fill the tank with hydraulic fluid only up to the cold level. 6. Install the fill cap. Wipe up any spilled fluid. 7. Remove the cylinder lock and lower the hopper. Changing the Hydraulic Fluid for the Lift System 1. Park the machine on a level surface, move the motion-control levers to the NEUTRALLOCK position, engage the parking brake, raise the hopper, and install the cylinder lock. 2. Shut off the machine and remove the key. Allow the machine to cool completely. 3.
Hydraulic Lift System (continued) 1. Park the machine on a level surface, move the motion-control levers to the NEUTRAL-LOCK position, engage the parking brake, raise the hopper, and install the cylinder lock. 2. Shut off the engine, and remove the key. Allow the engine to cool. 3. Replace the filter. G186042 G376169 4. Start the engine and let it run for about 2 minutes to purge air from the system. 5. Shut off the engine and check for leaks. 6. Check the fluid level in the reservoir tank.
Cleaning Removing Debris IMPORTANT Operating the engine with blocked screens, dirty or plugged cooling fins, and/or cooling shrouds removed, will result in engine damage from overheating. 1. Park the machine on a level surface and shut off the engine. Allow the engine to cool. 2. Unlatch and remove the cowl. 3. Clean any debris from under the hopper. 4. Wipe away debris from the air cleaner. 5. Clean any debris buildup on the engine and in the transmission with a brush or blower.
Chapter 6 Storage Storage Safety • Shut off the engine, remove the key (if applicable), wait for all moving parts to stop, and allow the machine to cool before storing it. • Do not store the machine or fuel near flames. Preparing the Machine for Storage Over 30 Days 1. Park the machine on a level surface, engage the parking brake, and lower the hopper. 2. Shut off the engine and remove the key. 3. Remove dirt and grime from the entire machine.
7. Prepare the fuel system. A. Add a petroleum-based fuel stabilizer/conditioner to the fuel in the tank. Do not use an alcohol-based stabilizer (ethanol or methanol). B. Run the engine to distribute conditioned fuel through the fuel system for 5 minutes. C. Shut off the engine, allow it to cool, and drain the fuel tank using a pump-type syphon. D. Start the engine and run it until it shuts off. E. Choke the engine. F. Start and run the engine until it does not start again. G. Dispose of fuel properly.
Chapter 7 Troubleshooting The engine loses power. Possible Cause Corrective Action The engine load is excessive. Reduce the ground speed. The air cleaner is dirty. Service the air-cleaner element. The oil level in the crankcase is low. Add oil to the crankcase. The cooling fins and air passages under the engine blower housing are plugged. Remove the obstruction from the cooling fins and air passages. A spark plug is pitted, fouled, or the gap is incorrect.
The engine overheats. Possible Cause Corrective Action The engine load is excessive. Reduce the ground speed. The oil level in the crankcase is low. Add oil to the crankcase. The cooling fins and air passages under the engine blower housing are plugged. Remove the obstruction from the cooling fins and air passages. The machine does not drive. Possible Cause 3451-705A Corrective Action The hydraulic-fluid in the transmission is low.
California Proposition 65 Warning Information What is this warning? You may see a product for sale that has a warning label like the following: WARNING: Cancer and Reproductive Harm—www.p65Warnings.ca.gov. What is Prop 65? Prop 65 applies to any company operating in California, selling products in California, or manufacturing products that may be sold in or brought into California.
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