Traxxas Nitro4-Tec 3.3 4807 Owner'S Manual Download | Manualshive

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MODEL 4807

4-TEC

NITRO

owner

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s manual

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Summary of Contents for Nitro4-Tec 3.3 4807

Page 1: ...MODEL 4807 owner s manual ...

Page 2: ...ted about getting your new Nitro 4 Tec 3 3 on the road but it s very important that you take some time to read through the Owners Manual This manual contains all the necessary set up break in tuning and operating procedures that allow you to unlock the incredible performance and adjustment potential that Traxxas engineers designed into Nitro 4 Tec 3 3 Even if you are an experienced R C enthusiast ...

Page 3: ...rts may be purchased directly from Traxxas by phone or online at BuyTraxxas com You can save time along with shipping and handling costs by purchasing replacement parts from your local dealer Do not hesitate to contact us with any of your product support needs We want you to be thoroughly satisfied with your new model Traxxas 1100 Klein Road Plano Texas 75074 Phone 972 265 8000 Toll free 1 888 TRA...

Page 4: ...lly when in a fuel dispensing bottle may look like a cool drink to a child Keep all fuel out of the reach of children at all times Do not place fuel containers on the ground where children can reach them while you are driving Model engine fuel is flammable Never allow smoking sparks heat or flame in the presence of fuel or fuel vapors The engine brakes and exhaust system may become extremely hot d...

Page 5: ...or needle nose pliers Philips screwdriver Soldering iron For more information on radio system batteries see Use the Right Batteries on page 9 Glow plug wrench Extra glow plug 1 5mm L wrench 2 0mm T wrench 2 5mm T wrench U joint wrench Turnbuckle wrenches 4 way wrench Foam air filter oil and extra oiled air filter element 8 AA alkaline batteries Traxxas Top Fuel see page 18 Small flat blade screwdr...

Page 6: ...eiver Bearing Block Air Filter Pipe Header TRX 3 3 Racing Engine see pg 15 for details Pressure Line Fuel Line EZ Start Motor EZ Start Plug Shock Tower Body Mount Chassis lower On Off Switch Antenna Mount Pipe Hanger Front Camber Link Turnbuckle Racing Tires Two Speed Transmission Steering Bellcrank Front Differential Front Drive Belt Drive Belt Pulley Rear Differential Body Mount Center Drive Bel...

Page 7: ...e engine See page 24 Install the body mounts and foam bumper Learn to use the correct starting procedure for your TRX 3 3 5 Install batteries in the transmitter See page 10 13 Break in your engine See page 24 Nitro 4 Tec requires 4 AA alkaline or rechargeable batteries for the transmitter Follow the break in instructions exactly to ensure the best performing longest lasting engine 6 Install the EZ...

Page 8: ...ck NiCad batteries have very high current handling high capacity and can last up to 1000 charging cycles Good charging procedures are required to reduce the possibility of developing a memory effect and shortened run times NiMH Abbreviation for nickel metal hydride Rechargeable NiMH batteries offer high current handling and much greater resistance to the memory effect NiMH batteries generally allo...

Page 9: ... flashing red light to avoid losing control When rechargeable batteries begin to lose their charge they will fade much faster than alkaline dry cells Stop immediately at the first sign of weak batteries Never turn the transmitter off when the battery pack is plugged in The model could run out of control Your model is equipped with the newest Traxxas 2 4 GHz transmitter with Traxxas Link The transm...

Page 10: ...nd will not come loose If the tie wrap is loose it will interfere with the middle drive belt Traxxas TRX Power System optional The optional Traxxas TRX Power System can be purchased separately to power the radio system in the Nitro 4 Tec 3 3 Benefits include the economy of a rechargeable 5 cell nickel metal hydride NiMH battery pack that replaces AA alkaline batteries and increased voltage for dra...

Page 11: ...sition There are two settings available 50 50 Allows equal travel for both acceleration and reverse 70 30 Allows more throttle travel 70 and less reverse travel 30 50 50 is required setting for the Nitro 4 Tec 3 3 with TRX 3 3 Racing Engine installed Steering Trim The electronic steering trim located on the face of the transmitter adjusts the neutral center point of the steering channel Multi Func...

Page 12: ... correctly 5 Do not attempt to operate the model if there is any problem with the radio system or any external interference with your radio signal at your location Higher Speeds Require Greater Distance The faster you drive your model the more quickly it will near the limit of radio range At 60mph a model can cover 88 feet every second It s a thrill but use caution to keep your model in range If y...

Page 13: ...relatively large amount of steering wheel travel results in a smaller amount of servo travel The farther you turn the knob the more pronounced the effect becomes Decreased steering sensitivity may be helpful when driving on low traction surfaces when driving at high speed or on tracks that favor sweeping turns where gentle steering inputs are required The ranges are exaggerated for illustrative pu...

Page 14: ...f premature engine wear and failure is lack of care and maintenance BREAK IN The TRX 3 3 Racing Engine is manufactured to exacting tolerances and requires a specially designed break in procedure to accomplish the final precision fitting of the internal engine components It is very important that you follow the new break in procedure as closely as possible to achieve the best performance and longes...

Page 15: ...Drive Unit EZ Start Motor Engine Mount Low Speed Needle Throttle Arm Clutch Bell Flywheel Carburetor Air Intake Fuel Intake High Speed Needle Idle Speed Screw EZ Start Plug Positive Wire Negative Wire Fuel Line Fuel Tank Tuned Pipe Header Pressure Line Ground Wire Glow Plug Wire Crankshaft Crankcase Engine Shut off Clamp Air Filter Housing TRX 3 3 Racing Engine Illustrated EZ Start Controller ...

Page 16: ...The engine s body that contains all of the running mechanical components Crankshaft The main shaft of the engine that holds the reciprocating assembly Cooling fins The cooling fins are milled into the cylinder head and crankcase and cause heat to be drawn away from the engine Heat is removed when it dissipates into the air passing across the cooling fins It is important to keep the fins clean of d...

Page 17: ...s the first level of air filtration for the engine The majority of dirt and debris will be stopped by this filter Clean re oil and replace this filter after every hour of run time Always use both the pre filter and primary filter Primary filter The inner air filter element in a two stage air filter This provides a second level of air filtration after the pre filter removes the majority of dirt and...

Page 18: ...tical limitations Engines are designed to run best within a range of nitro percentages How the engine is ported the size of the combustion chamber and other factors determine how much nitro can be efficiently used in the engine The TRX 3 3 Racing Engine responds exceptionally well to a maximum of 33 nitro returning cooler temps more power and a smoother throttle response For those who want to run ...

Page 19: ...ngine will be damaged Engine damage or wear due to dirt ingestion is easy to detect and one of the top causes of premature engine failure Air Filter Cleaning Instructions 1 Remove the air filter from the carburetor bore by pulling the entire filter assembly firmly to the side to release it Do not pull straight up 2 Disassemble the filter Pull the rubber air filter neck out of the filter body With ...

Page 20: ...e correct air fuel ratio The tuning needles are there to adjust how much fuel is made available for the carburetor to mix with the available air atomization The Fuel Mixture Needles The amount of fuel metered and atomized by the carburetor is controlled by the two mixture needles the high speed needle and the low speed needle The low speed needle is used to meter the fuel used by the engine at idl...

Page 21: ...ine running to assess what minor adjustments may be required to compensate for fuel temperature and altitude Adjustments are usually made in 1 8 or 1 16 turn increments If the engine sticks at top dead center TDC see page 34 for instructions on freeing the engine The Idle Speed Adjustment The idle speed screw controls the closed position of the throttle slide When the throttle servo is in its neut...

Page 22: ...ttery in place when the battery is installed in the compartment C 4 Install the battery into the compartment and press the wires securely into place 5 Snap the battery compartment door back on and lock the end tab D Using the EZ Start Your EZ Start controller plugs into a 4 prong receptacle in the center of the bed on your Nitro 4 Tec 3 3 When the red button on the controller is pressed the EZ Sta...

Page 23: ...n the piston and the top of the sleeve This is a tapered fit and a tight piston sleeve fit on initial startup is desirable for those who want the best performing engine Make sure you are using a good quality battery pack that is fully charged new batteries usually require several charge cycles to reach peak voltage and full capacity This is especially important with a new engine that needs to be b...

Page 24: ...cause deposits to form on the plug leading to plug failure Change or clean your air filter after break in Follow the instructions exactly for each of the first 5 tanks of fuel Starting Your TRX 3 3 Racing Engine for the First Time Before you start your TRX 3 3 Racing Engine for the first time make sure you have read all instructions and precautions in this manual Pay close attention to the tank by...

Page 25: ...e 3 When the fuel tank is nearly empty shut off the engine and refuel From here on you do not need to let the engine cool between tanks Tank 4 1 Driving procedure Gently pull the throttle trigger to full throttle over a 3 second count Then gently apply the brake to stop Count the three seconds out while accelerating one thousand one one thousand two one thousand three and then stop Repeat this sta...

Page 26: ... it is over 220 F and needs to cool down If the water takes a long time or does not evaporate at all then the engine is too cool We do not recommend that you operate your engine below 35 Fahrenheit If you insist on running your vehicle below 35 F be aware that nitro engines may be very difficult to start and tune at extremely cold temperatures Also at temperatures below freezing nitro fuel can act...

Page 27: ... turn counterclockwise and retest This setting will extend engine component life Low Speed Fuel Mixture Adjustment The low speed mixture is always set after the high speed needle is correctly adjusted The low speed mixture is set using the pinch test 1 Once the engine is warm do several high speed runs to confirm that the high speed needle is set correctly 2 Bring the vehicle in and pinch closed t...

Page 28: ...as the most influence on engine temperature is air temperature Expect the engine temperature to vary almost in direct proportion to air temperature Assuming you tuned the engine for the same maximum performance each day the engine will run about twenty degrees hotter when it s ninety degrees outside than it would in seventy degree weather For this reason we cannot give you a definitive temperature...

Page 29: ...It is intended for expert drivers only Experience with nitro powered radio controlled models is required The driver must exercise all caution and accept full responsibility for their own safety and the safety of others nearby Full speed operation requires a large smooth running area free of obstacles and closed off to pedestrian and automobile traffic This product is not designed for children unde...

Page 30: ...ench through the clutch drum and into the adjustment set screw See diagram 5 Turn the adjustment screw clockwise to raise the shift point later shifts Be careful not to overtighten the adjustment screw or you may damage the tension spring 6 Turn the adjustment screw counter clockwise to lower shift point earlier shifts Be careful not to loosen the adjustment screw too much or you may cause the scr...

Page 31: ...springs Adjust the ride height so that the suspension arms are slightly above being parallel to the ground Note that changes in ride height will occur when the changes in damper angle or spring rates are made You can compensate for ride height changes by changing the pre load spacers on the dampers Generally speaking ride height should be set as low as possible without causing significant bottomin...

Page 32: ...rip the clutch bell with channel lock adjustable pliers Cover the gears with a cloth to protect the teeth Using the pliers unscrew the gears counter clockwise 4 New clutch gears simply screw onto the clutch bell Reinstall the clutch bell and caphead screw onto the pilot shaft Reinstall the spur gears pin pulley and belt Secure them on the two speed shaft with the E clip 5 To adjust the gear mesh f...

Page 33: ... the quality and frequency of the engine maintenance Inspect the connecting rod after 3 gallons of fuel have been used Piston sleeve The life of the piston and sleeve will vary greatly with how the engine is used and maintained The piston and sleeve should be replaced when they no longer seal effectively loss of compression Symptoms include the engine being difficult to start when warm stalling wh...

Page 34: ...ing the piston from the sleeve 3 Put two or three drops of light machine oil into the glow plug hole to lubricate the piston and sleeve Do not use too much oil Excess oil will hydro lock the engine Verify the starter will spin the engine with the glow plug out 4 Rotate the flywheel so the piston is at bottom dead center and replace the glow plug with gasket Reconnect the blue glow plug wire 5 You ...

Page 35: ...etric pressure has changed significantly since the last time the engine was run see Fine Tuning the Carburetor on page 28 Turn the high speed needle out rich counterclockwise 1 4 turn hold the throttle trigger at about 1 2 throttle and try again to start the engine Once started retune the engine for performance see page 26 The engine could be worn If the fit between the piston and sleeve is loose ...

Page 36: ...ou select will represent what you wish to be the servo s maximum travel the Steering Percentage or Braking Percentage functions will not override the End Point settings Steering and Throttle Sub Trim The Sub Trim function is used to precisely set the neutral point of the steering or throttle servo in the event that simply setting the trim knob to zero does not completely center the servo When sele...

Page 37: ...times repeatedly 4 Press SET once The status LED will blink green once repeatedly 5 Press MENU once The status LED will blink green twice repeatedly 6 Press SET The memory is now selected to be deleted Press SET to delete the model Press and hold MENU to return to driving mode Failsafe Your Traxxas radio system is equipped with a built in failsafe function that returns the throttle to its last sav...

Page 38: ...ndpoint and press set to save To reset max throw Let go of controls and press SET The menu tree below shows how to navigate through the TQ 2 4GHz transmitter s various settings and functions Press and hold MENU to enter the menu tree and use the following commands to navigate through the menu and select options MENU When you enter a menu you always start at the top Press MENU to move down the menu...

Page 39: ...blinks x2 Press SET green LED blinks Press SET red LED blinks x3 Press MENU twice red LED blinks x3 Turn steering wheel to desired max left and right travel x8 Press SET to save each position Turn steering wheel to test settings IF END POINTS ARE OK Press hold MENU returns to driving mode IF END POINTS NEED TO BE CHANGED Press SET and repeat steps 6 8 To reset the END POINTS of STEERING servo to d...

Page 40: ...1100 Klein Road Plano Texas 75074 1 888 TRAXXAS 100304 KC1250 R00 MODEL 4807 owner s manual ...

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