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XL OWNER’S MANUAL MUDD-OX, INC. 8525 W 750 N 260-768-7221 WWW.MUDDOX.NET SHIPSHEWANA, IN 46565 MADE IN THE USA...
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The first production machine rolled off the line in 2008 and was shipped to Australia. Since then, we have expanded our model lineup to include the Mudd-Ox GT, XL, Fort Mac, and Vengeance to suit all your outdoor needs.
PIN plate from the Mudd-Ox. Locating the PIN On the interior of the Mudd-Ox in front of the parking brake handle locates the PIN plate. It is visible without removing any components, however removing the lower operator seat is recommended for best visibility.
Warranty 1 year or 500 hours limited warranty on Mudd-Ox Tires 26" x 14" x 12" Mudd-Ox Vendetta on 12" Mudd-Ox Bead Lock 3 years or 3,000 hours engine wararnty. [E] LED Headlights & LED Tail Lights Specifications are subject to change without notice.
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8" outer edge of vehicle Axles 1.500" Diameter Axles On Tires: 1 psi [D] Tires 26" x 14" x 12" Mudd-Ox Vendetta on 12" Mudd-Ox Beadlock Ground Pressure Tracks: 0.25 psi [D] Rim. Wooden with handles for quick removal Floor Board...
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Safari Rack (Half Length/Rub Rail Mount) 70 lbs. Safari Rack (Half Length/Roll Bar Mount) 58 lbs. Snow Plow - 85" Mudd-Ox 190 lbs. Snow Plow - Boss Power V-Blade 475 lbs. Spare Carrier - Attachment 5 Gallon Fuel Can w/ Can 20 lbs.
Mudd-Ox’s Customer Service Department may be contacted using the following methods: by calling +1 260-768-7221, in person or by mail at Mudd-Ox Inc, 8525 W 750 N Shipshewana, IN 46565, or online at www.muddox.net. The repair or replacement of any part(s) under this Limited Warranty shall not extend the term of the warranty beyond the original term as set forth above.
Do not operate on public roads. Do not operate in waters with current or open water such as large lakes and oceans. Do not refuel the machine with the engine running. Do not operate the Mudd-Ox on angles greater than 25 degrees.
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Please keep a copy in the glove box for operators to review as needed. Never operate the Mudd-Ox with the roll bar down. IMPROPER USE OF THIS VEHICLE CAN RESULT IN SERIOUS INJURY OR DEATH LOCATE AND READ OPERATOR’S MANUAL.
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All Mudd-Ox operators and passengers must be aware of the wind chill factor. Always dress properly for the weather and cover exposed skin. Ensure young children are adequately dressed for cold temperatures. It is best to bring candles and blankets in case of emergency.
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7. 7. Bilge Pump Switch: Bilge Pump Switch: When in an emergency, if the Mudd-Ox has water in the lower body, quickly flip on the bilge When in an emergency, if the Mudd-Ox has water in the lower body, quickly flip on the bilge pump switch.
Engine Throttle For easy of driving, Mudd-Ox XL is designed with a push button throttle system. Once the engine is started, simply press the rabbit symbol for higher RPM, and the turtle for lower RPM. Full throttle will give you full power and torque.
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Turning As the XL utilizes a hydrostatic system, it can turn 360 degrees. A left turn can be achieved in numerous ways: • Left side lever in neutral position while pushing forward on the right side lever (wide radius turn).
Use the fuel gauge located on the dash to ensure the fuel tank is full. • If at any time during operation there is an unusual noise, sound or smell coming from the Mudd-Ox, inspect im- mediately.
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It is important to always check your surroundings before turning the Mudd-Ox. Look for objects such as trees and rocks, changes in terrain elevation, and other people. XL is capable of turning 360 degrees within its own radius via counter-rotating its wheels. Never counter-rotate or sharply turn the Mudd-Ox at high speeds or on harsh terrain.
Entering Water Mudd-Ox can only be used in calm water. Drive slow and steady. Only enter water at an angle of 10 degrees or less to prevent water from flowing into the Mudd-Ox. Stay near the shore. Do not operate in waters with current or open water such as large lakes and oceans.
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(Figure-3). 6. As the Mudd-Ox is on flat ground, the water may not drain out the back. Reinstall the floor boards, seats and engine cover. Drive the vehicle on a 5% grade and set the parking brake. This will keep the front end raised, allowing water to drain out.
Winch Operation All Mudd-Ox’s come standard with a front winch and optional rear. It is important to understand the abilities and limits of your winch(s). For information of your exact winch and proper use of snatch block, refer to the manufac- turer’s specifications and owner’s manual.
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2. Locate a heavy object to connect the winch, for this example a tree. Wrap the strap around the base of the tree. 3. Go back to the Mudd-Ox and disengage winch to free spool. Now, with heavy duty gloves, firmly grab the winch hook but do not put fingers inside winch hook.
Accessing the Mudd-Ox The Mudd-Ox was designed with ease of maintenance in mind. We understand the need for quick and painless access to all components of the machine. Listed on the next few pages are detailed photographs displaying the key components to removing large parts.
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Accessing the Mudd-Ox Cont. Lower Seats Removal The (3) lower seats in the Mudd-Ox are held in by industrial Vel- cro. To remove these, simply pull up until the Velcro has sepa- rated, and remove them from the vehicle. Front Seat Back Removal Removing the operator seat back will provide access for main- tenance on the Mudd-Ox.
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Accessing the Mudd-Ox Cont. Floor Board Removal (2) metal floor boards are installed in the Mudd-Ox, one per each occupant area. Fitted is a grab handle to quickly pull the floors up and out of the machine. Note: You must first com- plete Lower Seats Removal.
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Accessing the Mudd-Ox Cont. Drain Plugs Access Located at the rear of the Mudd-Ox, near the bottom of the low- er tub, are (2) drain plugs. (1) is installed per side of the machine. Twist the plugs counterclockwise to loosen, clockwise to tight- en.
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Here at Mudd-Ox, we regularly work with used machines - whether it be for maintenance services or customers trading in for newer models. After over 10 years in business, you could say we have “seen it all. ” Mudd-Ox’s have returned to our factory with 500 hours on the clock that look and drive like a new vehicle, and those with 50 hours that need a complete overhaul.
• Tires: Verify pressures before each use. Listed are the oil capacities for the Mudd-Ox XL. See specific engine service manual for details on your specific engine model. Always ensure the vehicle is correctly prepared and the fluid levels are within tolerance before each use.
Fastener Torque Specifications Chassis Specific Wheel lug nuts: Torque to 140 ft. lbs. Axle hub nuts: Torque to 800 ft. lbs. U.S. Recommended Bolt Torque Table Imperial Recommended Torque Size Grade 2 Grade 5 Grade 8 18-8 S/S Bronze Brass Coarse Fine Coarse Fine Coarse Fine Coarse Fine Coarse Fine Coarse Fine * #4 * #6...
Note: If removing all axles at once, extra caution must be taken. As the Mudd-Ox body is made of plastic, it can grow and shrink with temperature change - causing the frame to shift inside the body. After removing each axle, reinstall the bearing flange bolts on the outside body.
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Axle Spacing 5. Now remove the bolt at the end of the axle, which is inside the Mudd-Ox body. One mechanic should hold the 3/4” wrench on this bolt (F in Figure-4), while another spins the axle counter-clockwise to loosen it. Note: This will take significant force.
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A. If the Mudd-Ox is not equipped with relocated grease zerks: Move to step #9. B. If the Mudd-Ox is equipped with relocated grease zerks: There will be (1) inner grease hose and (1-2) outers. To remove, simply push on part “I” in Figure-10 into the elbow, “J”, to release grip on the hose “K”. Then pull out the hose.
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(O in Figure-15). Place one end of the ram behind the axle hub (Figure-17), and the other on the Mudd-Ox body near the bearing flange. This location is up against the frame for maximum support (Figure-16).
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Axles Cont. 3. Even if the bearings appear to be in good condition, we recommend to always replace them while the axle assembly is apart due to water and mud exposure. There may be a grease cap that needs removed (R in Fig- ure-20).
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(Figure-1). 8. Now all of the bearings are loosely assembled onto the Mudd-Ox. Begin to slide the axle into the outer assem- blies. Once it reaches the inside of the tub, begin to reassemble all axle spacers, sprockets, and sprocket keys in the same order in which they were removed.
Inspection See Raising the Mudd-Ox under Jack Points to raise the vehicle using the wooden block method. To check axle bearings, simply grab a wheel and firmly attempt to wobble it in all directions. If the entire axle assembly has any slop or movement, at least (1) axle bearing is worn.
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1. See Engine Cover Removal under Accessing the Mudd-Ox. Locate the (3) grease zerk relocation blocks. There are (2) on the outside rear of the Mudd-Ox (Figure-6) and (1) on the right side engine compartment (Figure-7). 2. On each grease block is a row of grease zerks. Connect the grease gun onto the top fitting as shown in Figure-8.
Chains There are (3) major components to a chain system: tensioners, sprockets and the chains themselves. Each part should be inspected for condition. Even if the chains are adjusted, worn components can cause improper driving characteristics and possible damage. Signs of Worn Chain Adjustment and/or Components •...
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Chains Cont. Tensioner Style “B” Inspection Tensioner Style “B” Inspection Plastic pad: The tensioner pad is made of plastic (A in Figure-3). As the chain moves across this pad, it will wear in a pattern over time. A good tensioner pad should have at least 1/8” of material at its shallowest point. Bad pads may be: broken in multiple pieces, worn down to metal, and/or a metallic noise is present while the vehicle is in motion.
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3. Use roller chain lubricant. Completely cover the visible sections of all chains with the lubricant. 4. Next is to rotate the chains so that non-visible areas become visible, and lubrication can be achieved. As the XL is hydrostatic, step #1 must be reversed. Then, drive the vehicle a few feet forward. This will rotate the chains.
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Slack Locations 1. See Raising the Mudd-Ox under Jack Points. Although the parking brake is set, the wheels will be able to freely rotate a few degrees. Because of this, slack is no longer in multiple sections of the chain - and can be inspected in a single section.
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See Removal. 7. Safely lower the Mudd-Ox and reinstall any floor boards, seats and engine cover if removed.
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6. Remove the master link assembly by pushing it out of the chain. 7. Now the chain ends should be separated. Carefully remove from the Mudd-Ox. Do not put your fingers between the chain and axle sprockets. Serious injury can occur.
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1. The Mudd-Ox should still be raised with the old chain removed as described in Removal. 2. Gently set the new chain inside the Mudd-Ox. Use one hand to guide the open end around the sprockets, while the other hand feeds the chain along. Note: Always be cautious and wear gloves. Never put fingers between the sprockets and chain, as severe injury can occur.
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8. Remove the vise grips. Figure-23 Master Link Installed 9. The chain is now completely installed, however is unadjusted. See Adjustment. 10. See Lubrication to lubricate the chain. 11. Safely lower the Mudd-Ox and reinstall any floor boards, seats and engine cover if removed.
Before diagnosing any electrical components, fuses or relays, first the battery must be removed. 1. See Engine Cover Removal under Accessing the Mudd-Ox to remove the front lower operator seat. 2. The battery is now visible (Figure-2). There are (2) wiring terminals, a positive (+) and negative (-) which are clearly labeled on the battery itself.
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5. Remove the (2) nuts “B” and battery tie down “C” in Figure-5. 6. Lift the battery out of the Mudd-Ox. Note: Never link the battery terminals together as it will short out, causing severe injury to persons and components. Do not set battery upside down, or place anything on top of it, as it can also short the terminals out.
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Identifying a Blown Fuse In the event an electrical component on the Mudd-Ox is no longer working, it may be the result of a blown fuse or bad relay. Locate the specific fuse controlling the component that is non-operational. On most occasions, it is possible to simply remove the fuse and identify if it is blown.
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7. Reverse Battery Removal steps #1-4 to reconnect the battery. Locations Following pages show each fuse, relay, sensor and contactor location visualized for the Mudd-Ox chassis. Engine electrical systems are explained in the engine owner’s manual.
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*Aux are used in conjunction with additional accessories that vary in amperage. Always replace fuses with the same amp rating. If no accessory is installed, Aux will be left empty. **Fuses only installed when equiped with a Steering Wheel. A standard Mudd-Ox will have no fuses or wiring to these places.
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Electrical Cont. Relay and Fuse Location 1 Located inside the engine compartment, next to the left side roll bar, is a set of relays and accompaning fuses. Their respected diagrams are on the previous page. Fuse Location 2 Mounted on the left side roll bar is a set of fuse blocks. Their respected diagrams are on the previous page.
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Kubota engine wiring harness. There may be fuses. See engine owner’s manual for information. Winch Contactor Directly behind the control levers, under the Mudd-Ox dash, is the winch contactor “K”. It’s mounted to the frame. Engine Coolant Temperature Sensor This sensor “L” turns on the cooling fans once operating tem- perature is reached.
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Electrical Cont. Neutral Safety Sensors For each z-bar on the top of the hydrostatic pumps, there is a neutral safety switch “N”. The frontmost one reads the right control lever, and the rear reads the left. Parking Brake Sensor When the parking brake is engaged, the sensor “M” activates the dash warning light.
1. Locate the engine oil drain plug (D in Figure-3). Standard location is nearest to the engine cover, towards the bottom of the oil pan. If the Mudd-Ox is equipped with a remote drain setup, there will be a hose connected to the drain hole.
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Engine Cont. B. Locate the engine oil fill cap at the driver side top of the engine. Remove the cap, and use an oil suction pump with long, flexible hose. Ensure the suction pump has completely drained the engine oil. Reinstall oil fill cap to keep debris out.
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Figure-6 Coolant Overflow Bleeding the System A brand new Mudd-Ox will not have a fully bled cooling system. Meaning, there may be air bubbles that must be “driven” out of the system. 1. Drive the Mudd-Ox at operating temperature. 2. Let the engine completely cool down.
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4. Have an external 5 gallon bucket prepared. Once the radiator hose is removed, it alongside the engine will begin to quickly drain coolant. Catch all the coolant inside the bucket. Do not let it drain into the Mudd-Ox body.
Location 1 The fuel tank is located in the rear of the Mudd-Ox. See Fuel Tank Access - Standard and Fuel Tank Access - Rear Seat under Accessing the Mudd-Ox to gain access to its components. The fuel feed line (gas going into the engine) connects to the bottom of the fuel tank, while the return line (unused gas leaving the engine) connects at the top of the tank.
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Fuel Cont. Filter Inspection One of the most common symptoms of fuel issues lies within the filter (A in Figure-3). Ensure the filter is not clogged or damaged in any way. To check for clogging, safely remove the filter and attempt to blow low pressure air (approx.
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Do not alter the system in any way. Refer to engine owner’s manual when applicable. Stabilization If the Mudd-Ox will be in storage for extended periods of time, it may be necessary to stabilize the fuel. Refer to engine owner’s manual for information about stabilizers that work with their recommend fuel types.
Hydrostatics Mudd-Ox XL is driven by a hydrostatic system. There are (2) inline pumps that feed (2) motors, one per each side of the vehicle. Oil Inspection On the right side of the engine compartment is an oil tank. It has a clear sight tube “A” for checking oil level. It must be filled to the middle of the sight tube +at all times with AW-46 (Figure-1).
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Hydrostatics Cont. 3. Locate the (1) hydraulic oil tank on the XL. It is on the passenger side of the engine. At the top of the oil tank is an oil fill cap. Remove the cap (B in Figure-1). 4. Now drain oil from the tank. We recommend purchasing an oil suction pump with a long, flexible nozzle. It will drain the tank completely and contain the oil for proper disposal.
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16. This step is extremely important to execute perfectly. It’s time to run the Mudd-Ox to flow new oil into the system and push out the old. (1) mechanic should sit inside the rear occupant area, prepared with new oil. A 2nd mechanic will start the Mudd-Ox and slowly push the control levers partially forward.
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#20. 23. Once the Mudd-Ox can be driven on flat ground in both directions without any air, attempt to drive on small grades both up and down. Also attempt to counter-rotate the Mudd-Ox by pushing the control levers in oppo-...
Raising the Mudd-Ox 1. Engage the parking brake, ensure it works well. Locate the lower body of the Mudd-Ox as shown as “A” in Fig- ure-1. These outer sections are where the vehicle can be supported with a jack. They’re molded around the inner frame, providing absolute strength and stability.
B. Blocks of wood: Large blocks of wood are an alternative to jack stands. This will require an additional jack to raise the opposing side of the Mudd-Ox. At least two blocks of wood are required, one for each end of the Mudd-Ox.
Disc Inspection Similar to the pads, the discs wear depending on usage. There is a disc for each side of the Mudd-Ox. A healthy con- dition disc will still have 1/8” thickness (B in Figure-3). If it is thinner, or there are deep grooves, it will need replaced.
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Caliper Location 3. Start with the left side brake caliper. On the caliper, facing the inside of the Mudd-Ox, is an adjustment bolt with jam nut. Use an 11/16” wrench to loosen the jam nut (Figure-7 shows the caliper removed).
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1. Use a 15/16” wrench to loosen jam nut “E” in Figure-9. 2. Use a 15/16” wrench to tighten jam nut “F” in Figure-9. This will pull the cable towards the rear of the Mudd-Ox. Tighten approximately 1 full turn.
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Parking Brake Cont. 3. For each cable there is (1) cotter pin “G” and (1) clevis pin “H” holding the clevis in place shown in Figure-12. Use a pair of needle nose pliers to remove the cotter pins, then push the clevis pins out (Figure-13). 4.
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Parking Brake Cont. 10. Slide the cables ends completely out of the bracket, and set them off to the side 11. Lastly, locate the clamps that hold the cables behind the upper operator seat (K in Figure-17). Unbolt them from the metal brackett and remove the cables.
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11. Loop the cables through the engine compartment and reinstall clamps “K” from Figure-17. Note: The 85” cable should be clamped on the left side of the Mudd-Ox, and 110” on the right. 12. Repeat steps #3-8 for the brake caliper side.
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8. Replace the old disc “B” in Figure-24 with a new one. Reassemble al components in the same order as removed, and bolt it back onto the Mudd-Ox. Note: The largest spacers go on each side of the brake disc, while the smaller ones go nearest to the chain sprocket.
If both locations are out of adjust- ment, a new steering cable is required. A. See Accessing the Mudd-Ox to remove the lower operator seat, seat back, and seat L-bracket. This will gain access to the z-bars mounted on top of the hydraulic pumps.
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Steering Cables Cont. B. Place padding on the driver floorboard. Wear safety glasses and lie inside the Mudd-Ox in a position to see underneath the dash. The steering cables are mounted directly behind the control levers. Figure-3 Under Dash View 2.
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Installation steps are the opposite of removal. Complete Adjustment after installing the new cable(s). Remember to check that all jam nuts are tight and the Mudd-Ox is safe to operate. Note: Although the heim joints look similar, there are (2) different styles as shown in Figure-8. Style “G” mount on the pumps.
The wheels should be free of any bends, dents or damage. Most common locations for damage are on the outer lips. To see if the wheel itself is bent, the Mudd-Ox must be raised with its wheels rotating. Note: Ensure the axle itself is not bent.
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• Increased wear on the drivetrain. • Uneven tire wear. Matching Tire Circumferences 1. See Raising the Mudd-Ox under Jack Points. If tracks are installed, reverse steps Installation under Tracks then raise. 2. Now air up the tires. A. If using tracks: 12 psi B.
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9. At times, it is possible not all tires will perfectly match in circumference with a reasonable amount of varying air pressures. Simply find the (4) best match tires and place them on each corner of the Mudd-Ox shown as 1, 2, 7, 8 in Figure-3.
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Tires/Wheels Cont. Wheel Extension Installation 1. See Raising the Mudd-Ox under Jack Points. 2. The wheel extension is installed before the wheel. A. If wheel is already installed: Complete Wheel Removal. B. If wheel is not installed: Continue to step #3.
Tracks Various styles of tracks may be installed on the Mudd-Ox Vengeance. Although different, the basic components are relatively similar in design and function. Signs of Improper Components • Tracks come off the tires • Tracks slip around the tires Rubber Inspection Each piece of rubber extends the entire length of the tracks (A in Figure-1, 2).
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Figure-7 “Backwards” Tires 2. Set (2) long, heavy duty ratchet straps down in front of the Mudd-Ox. Spread them across the ground parallel to the vehicle. These will later be used to pull the ends of the tracks together. 3. Place the tracks directly over each ratchet strap, completely flat with the tread pattern facing down. For Chev- ron tracks, set the “V”...
First see Standard Setup above. With our optional Transport Tie Downs, the only difference is end “A” will connect to a tie down point on the trailer, and end “B” will connect directly to the tie down accessory on the Mudd-Ox (Fig- ure-3, 4).
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Folding the Roll Bar The Mudd-Ox roll bar may be folded down for ease of transportation. There is (1) pin per each side of the roll bar feet, directly over the engine cover (C in Figure-5). Simply pull out the R-pin to remove and push the pin out. At this time the roll bar can be folded downwards towards the rear of the vehicle.
Tow Points Do not attempt to tow the Mudd-Ox until completing all steps in this section. 1. The rear hitch can serve as a tow point. Push the closed loop of the tow strap inside the hitch, then install the hitch pin inside the loop (A in Figure-1).
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Front Two Chains 3. In order to freely move the Mudd-Ox, you must release the brakes on the (2) inline hydraulic pumps. This is a simple task. On the bottom of each pump there is (1) towing bolt, thus (2) total. Loosen them by turning 1 to 1-1/2 turns counterclockwise with a 14 mm wrench (Figure-4, 5).
Repairing a Swamped Mudd-Ox XL “Swamping” refers to the unfortunate event when a Mudd-Ox fills with water. This can be caused by improp- er use of the vehicle including but not limited to: Entering large bodies of water, water with current, improper grade entering/exiting water.
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10 10 Ref. Qty. Part # Description M-1002-XL Black Skid Plate M-1003-XL Black Lower Body M-2949 Front Upper Seat M-3239 Mudd-Ox Roll Bar Sticker M-1448 Rollbar M-1857 Rear Rollbar M-1004-XG Upper Body - Green M-1007 Rub Rail M-2241 26x14x12" Vendetta Tire M-2124 12"...
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