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VENGEANCE 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.
Vacuum formed upper body, lower hull and skid plate made from High Molecular Weight Polyethylene Engine: See manufacturer's manual [E] (HMWPE) 26" x 14" Mudd-Ox Vendetta on 12" Mudd-Ox Bead Lock Rim Specifications are subject to change without notice. Tires LED Headlights [A] Top speed depends on terrain conditions and drive train options.
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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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“off. ” 8. Bilge pump switch: When in an emergency, if the Mudd-Ox has water in the lower body, quickly flip on the bilge pump switch. This will immediately begin to pump water out of the vehicle. Caution: This is a feature to remove small amounts of water.
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“off. ” 9. Bilge pump switch: When in an emergency, if the Mudd-Ox has water in the lower body, quickly flip on the bilge pump switch. This will immediately begin to pump water out of the vehicle. Caution: This is a feature to remove small amounts of water.
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“off. ” 8. Bilge pump switch: When in an emergency, if the Mudd-Ox has water in the lower body, quickly flip on the bilge pump switch. This will immediately begin to pump water out of the vehicle. Caution: This is a feature to remove small amounts of water.
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“off. ” 8. Bilge pump switch: When in an emergency, if the Mudd-Ox has water in the lower body, quickly flip on the bilge pump switch. This will immediately begin to pump water out of the vehicle. Caution: This is a feature to remove small amounts of water.
You will use the two control levers to change direction of the machine. The left lever “A” operates the left side wheels/track, and the right lever “B” operates the right side wheels/track (Figure-1). Please note that smooth minor movements on the controls are all that is needed to drive the Mudd-Ox. Figure-1...
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The term “Split Shifting” refers to shifting one side of the transmission into forward, and the opposing side into re- verse. This will allow the Vengeance to drive its wheels in opposite directions, allowing a true 360 degree turn right in its own tracks.
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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Land Operation Cont. Turning Radius 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. With the split-shifting system, the Vengeance is capable of turning 360 degrees within its own radius via counter-rotating its wheels.
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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Carefully pull up on the cover and remove it from the vehicle. Engine Cover Installation Placing the cover back into the Mudd-Ox is simple. On the floor is a channel “C” that extends across to both sides of the vehicle.
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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 Vengeance. 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-5), 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-11 into the elbow, “J”, to release grip on the hose “K”. Then pull out the hose.
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(O in Figure-16). Place one end of the ram behind the axle hub (Figure-18), and the other on the Mudd-Ox body near the bearing flange. This location is up against the frame for maximum support (Figure-17).
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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-21).
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(Figure-2). 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.
• Sprockets and chains have uneven wear. Part 1: Transmission System Inside the front of the Mudd-Ox, under the operator seat and floorboard, is the transmission system. There are linkages and jackshafts that have bearings. All models of Vengeance, no matter which installed options, have the same exact bearings installed on this system.
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Figure-3 Grease Points Greasing 1. See Lower Seats Removal under Accessing the Mudd-Ox to remove the lower operator seat. 2. See Battery Removal under Electrical to remove the battery. 3. Locate the (6) greaseable bearings as shown in Figure-3. 4. For each bearing, there is a grease zerk on the bearing flange/block itself. Connect the grease gun onto the fitting as shown in Figure-5.
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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-13) and (1) on the right side engine compartment (Figure-14). 2. On each grease block is a row of grease zerks. Connect the grease gun onto the top fitting as shown in Figure-15.
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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4. Next is to rotate the chains so that non-visible areas become visible, and lubrication can be achieved: A. See Raising the Mudd-Ox under Jack Points using the wooden block method. After it’s raised, put the vehi- cle in neutral and rotate the wheels by hand.
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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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A. Master link is visible: Move to step #4. B. Maser link is not visible: Put the Vengeance into neutral position, and remove the parking brake. Carefully turn the tires by hand until the master link is visible.
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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-26 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.
Belt Inspection The drive belt “C” connects both clutches. It should be free of frays, tears, rot, cracks and glazing. Replace if nec- essary. Various belt part numbers can be installed in Vengeance depending on equipped engine and accessories. Figure-3...
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1. See Accessing the Mudd-Ox to remove the rear lower seats and engine cover. 2. Locate the belt. It’s on the left side engine compartment. 3. With one hand, firmly pull the belt towards the outside of the Mudd-Ox. With the other, begin to roll the belt off the transmission clutch (Figure-4, 5).
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Transmission Clutch Replacement 1. See Lower Seats Removal under Accessing the Mudd-Ox to remove the front lower operator seat. 2. First loosen the clutch bolt on the end of the transmission input shaft. Naturally, the clutch will attempt to spin rather than loosen the bolt.
Before diagnosing any electrical components, fuses or relays, first the battery must be removed. 1. See Lower Seats Removal under Accessing the Mudd-Ox to remove the front lower operator seat. 2. The battery is now visible (Figure-1). 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 is each fuse, relay, sensor and contactor location visualized for the Mudd-Ox chassis. Engine electrical systems vary depending on model. See engine owner’s manual for more information.
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Certain engines have their own fuses, and some have a dedicat- ed fuse for the internal charging system. These may have black or yellow covers. If this is the case, and the Mudd-Ox is equipped with an optional Alternator Upgrade, the charging system fuse will be removed.
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Electrical Cont. Transmission Oil Temperature Sensor #1 On the bottom left side of the transmission, towards the rear of the Mudd-Ox, is a small sensor “G”. This is used for displaying temperature on the instrument panel. Transmission Oil Temperature Sensor #2 This sensor “H”...
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“K” for displaying on the instru- ment panel. It’s located on the top rear of the engine. Winch Contactor Directly behind the winch, under the Mudd-Ox dash, is the winch contactor “L”. It’s mounted to the frame. Parking Brake Sensor When the parking brake is engaged, the sensor “M”...
VEN38: Location 2 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. Figure-1...
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Filter Pump Inspection Depending on Vengeance model, there will be either an electronic pump or vacuum pump. Electric pumps should make an audible noise when in operation. Refer to Electrical for diagnosis information. For vacuum pumps, refer to engine owner’s manual.
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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.
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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3. Start with the left side brake cable. Use a 15/16” wrench: A. More than 5-6 clicks: Loosen the jam nut closest to the front of the Mudd-Ox (E in Figure-6). B. Less than 5-6 clicks: Loosen the jam nut closest to the rear of the Mudd-Ox (F in Figure-6).
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1. The front lower operator seat should still be removed from Adjustment Steps with the Mudd-Ox on flat ground. See Accessing the Mudd-Ox to remove the rear lower operator seats and engine cover.
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Nut Removal 7. For each cable, locate their front most end which is connected to the brake caliper, (1) per side of the Mudd-Ox. Similar to the rearmost ends, there is a cotter pin and clevis pin shown as “G” and “H” in Figure-15 respectively.
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Parking Brake Cont. 8. Now completely loosen the front most jam nuts (E in Figure-6) so that they slide off the threads. Use a 15/16” wrench. Note: If the cables have been adjusted over time, the threads are no longer front most of the mounting bracket but rather behind it.
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Parking Brake Cont. 3. Brake cables are non-directional, and can be installed facing in either direction. Begin with the parking brake section in the engine compartment. Feed the 84” cable into the left hole of the mounting bracket, and the 110” into the right.
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2. Begin with either side of the Mudd-Ox. This example will utilize the left side. 3. See Cable Replacement Part 1: Removal step #7. 4. There are (4) total bolts holding the caliper system to the Mudd-Ox, (2) on top and (2) on bottom. Remove all with a 9/16” socket (Figure-26).
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Sleeve Inside Bracket Caliper Assembled 10. Go back to the Mudd-Ox on the same side the caliper bracket was removed. It’s time to replace the brake disc itself. Shift the transmission into reverse. 11. Remove the (7) total bolts holding on the brake disc. There is (1) center bolt that requires a 9/16” socket, and (6) surrounding bolts that require a 1/2”...
There is no need to adjust the cable unless it has been removed from the lever or engine. Signs of Improper Adjustment • Engine idles at high rpm, possibly causing the Mudd-Ox to move at idle. • Engine does not rev to high rpm, and the vehicle acts sluggish.
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The cable clamp should be tight, but overly tight which prevents the cable from moving. On the cable barrel there is a set screw. It should be firmly tight, but not overly tight where it bends the cable. Specific engine components and locations vary depending on the model of Vengeance. Engine Location Legend...
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Throttle/Choke Cont. VEN26 Idle Screw: Right side of the engine. Although not necessary to remove the air cleaner cover, it makes access easier. Throttle: Left side of engine near the muffler. Figure-8 Figure-9 Idle Screw Throttle VEN31 Idle Screw: On the left side of the engine near the muffler. Throttle: Directly behind the idle screw.
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Figure-13 Begin to Insert Cable Tighten Barrel Screw 5. All mechanics should stay clear of moving parts inside the Mudd-Ox. Start the engine and let it come up to op- erating temperature. 6. Evaluate the engine idle rpm: A. If 1,000-1,200: Move to step #7.
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Throttle/Choke Cont. Part 2: Choke (VEN22 Only) As VEN22 is equipped with a non-fuel injected engine, it’s fitted with a choke cable. This manually changes the air/ fuel mixture to help start the engine. There is no need to adjust the cable unless it has been removed from the engine.
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”...
8. Get inside the rear compartment. Remove the tape from the prepared wire, and strip the end so that the copper is exposed. Note: Do not let the wire touch any surfaces of the Mudd-Ox, as electrical shortage, sparks, and fire...
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Transmission Cont. 9. Now contact the sensor as described in step #5, right where the wiring harness connects. This will activate the pump, and it will immediately begin pumping fluid. Once no more fluid comes out, remove the wire from the sensor.
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The T-20 is a renowned transmission, and is known for still operating while out of adjustment. It’s best to check T20 adjustment while servicing the Mudd-Ox to ensure it’s in good condition, and does not wear to the point of causing dangerous driving characteristics.
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Transmission Cont. 6. Notice there are (2) R-pin clips per each U-channel, one up top and one near the bottom (E in Figure-10). Re- move both clips by simply pulling them out (Figure-11). Figure-10 Figure-11 R-Pin Installed R-Pin Uninstalled 7. From the measurement you took in step #3, you will need to adjust the upper plunger bolt “F” that goes through the U-channel.
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Note: Adjusting the control levers will change their overall position, meaning how far forward or backward they move in operation. It’s best to sit inside the Mudd-Ox to ensure you can comfortably reach the control levers, and what the desired lever position would be. They should never contact the operator, seat or dash when in operation.
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.
• Always tow at 5 mph or slower. Vengeance is Operational If the Vengeance is completely operational, simply put both shifter levers in neutral position. Ensure parking brake is not engaged. Select your available method of tow points, then proceed.
10. Replace the fuel filter. See Locations under Fuel. 11. Ensure all mechanics are clear of moving components and the Mudd-Ox is in neutral position with the parking brake engaged. Turn the key switch to the “start” position and hold for approximately 5 seconds. Note: Water will most likely spray out of the spark plug holes/loose injectors.
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