Home

Emerson SiteLink-4 Network Router User Manual

1. Controls Fine Flow Low Speed Needle is increased the low speed needle is pulled completely away from the needle seat leaving it fully open At that point fuel metering is entirely controlled by the high speed needle Again using our water hose example when the spray nozzle at the end of our garden hose is fully open then the main water valve can be used to adjust how fast the water flows The engine s performance is directly linked to the fuel mixture Richening the fuel mixture increases the amount of fuel in the air fuel mixture ratio and leaning the fuel mixture decreases the amount of fuel in the air fuel mixture ratio Slightly lean fuel mixtures deliver stronger more efficient combustion and more power but with less lubrication Slightly rich fuel mixtures deliver cooler running and more lubrication but with slightly less power Tuning the engine means finding the perfect balance between the two excellent power to meet your needs while maintaining good lubrication for long engine life The optimal fuel mixture setting is rich to provide a safety margin against having a lean condition if some variable changes such as the temperature from one day to the next General fuel mixture settings are measured by the number of turns the needles are turned out from fully closed The fuel mixture settings have been pre set from the factory to typical break in settings Do not readjust your carburetor from th
2. Always turn your transmitter on first Always turn your receiver on second THE TRAXXAS TQ RADIO SYSTEM Always have the transmitter and receiver turned on before you start the engine Never turn the radio system off while the engine is running The on off switch in the model only turns the receiver on and off It does not turn off the engine Always use new or freshly charged batteries for the radio system Weak batteries will limit the range of the radio signal between the receiver and the transmitter Loss of the radio signal can cause you to lose control of your Nitro 4 Tec Then start your engine H Remember always turn the TQ transmitter on first and off last to avoid damage to your Nitro 4 Tec Never turn the radio off while the engine is running OG NITRO 4 TEC 3 3 15 When the engine is running do not use the throttle trim on the transmitter to adjust the engine idle speed Alwavs use the idle speed adjustment screw see page 18 on the carburetor Don t attempt to operate your Nitro 4 Tec 3 3 if there are anv problems with your radio system or radio interference at your location OG 16 e NITRO 4 TEC 3 3 THE TRAXXAS TQ RADIO SYSTEM The TQ Radio System was pre adjusted at the factory The adjustment should be checked before running the model in case of movement during shipping Here s how 1 Fullv extend the chrome antenna mast on the transmitter and tur
3. MODEL 4809 ALL WHEEL DRIVE SUPERCAR OWNERS MANUAL BEFORE You PROCEED SAFETY PRECAUTIONS TOOLS SUPPLIES AND REQUIRED EQUIPMENT ANATOMY OF YOUR NITRO 4 TEC Quick START GETTING UP TO SPEED DECORATING AND INSTALLING YOUR NITRO 4 Tec BODV THE TRAXXAS TQ RADIO SYSTEM THE TRX 3 3 RACING ENGINE DRIVING YOUR NITRO 4 TEC ADJUSTING YOUR NITRO 4 TEC MAINTAINING AND STORING YOUR NITRO 4 TEG TROUBLESHOOTING INDEX NITRO 4 Tec 3 3 INTRODUCTION Thank you for purchasing the Traxxas Nitro 4 Tec 3 3 all wheel drive nitro supercar The Nitro 4 Tec 3 3 was designed to deliver extreme power for expert drivers It is the most powerful Readv To Race all wheel drive nitro supercar ever conceived The incredible TRX 3 3 Racing Engine is bigger faster and puts out a whopping 60 more peak horsepower compared to the legendary award winning TRX 2 5 Relentless horsepower and the lightweight Nitro 4 Tec 3 3 platform combine for a driving experience that is like no other The explosive acceleration and extreme top speed are intended to test the reflexes of only the most skilled and experienced drivers The broad linear power output of TRX 3 3 Racing Engine delivers responsive pavement burning power at almost any speed Nitro 4 Tec 3 3 is made to be a complete package that starts with the highest level of engineering a professionally produced DVD to acquaint you with the starting racin
4. See page 8 Install the body mounts and foam bumper 6 Install batteries in the transmitter See page 11 Nitro 4 Tec requires 8 AA alkaline or rechargeable batteries for the transmitter 7 Install batteries in the model See page 12 The Nitro 4 Tec requires 4AA alkaline or rechargeable batteries for the receiver 8 Install the EZ Start battery See page 25 Install and connect a charged 7 2 volt battery pack in the EZ Start controller 9 Turn on the radio system See page 5 Make a habit of turning the transmitter on first and off last your engine Refer to the pages indicated for details on each step Look for the Quick Start logo on the bottom corners of Quick Start pages 10 Check servo operation See page 16 Make sure the throttle shifting and steering servos are working correctly 11 Range test the radio system See page 16 Follow this procedure to make sure your radio system works properly at a distance and that there is no interference from outside sources 12 Fill the fuel tank See page 22 Use your fuel dispensing bottle to fill the tank 13 Connect the EZ Start to the model See page 26 Learn the proper way to use the EZ Start electric starting system 14 Start the engine See page 27 Learn to use the correct starting procedure for your TRX 3 3 15 Break in your engine See page 27 Follow the break in instructi
5. TRX 3 3 Racing Engine Pressure Antenna Servo Steering see pg 18 for details Line Mount Bellcrank Tie Rod Turnbuckle i i Header Receiver Front Camber Link Racing Tires Pipe Turnbuckle EZ Start Crystal Motor DES Front Bumper Shock Plate Tower Body Mount EZ Start Plug Rear Differential S si EN Air 6 Fuel Line Filter Drive Belt Pulley Body Mount Center n Drive Belt Bearing Beat Block Front Shock Suspension Arm Throttle Brake Servo Drive Belt Oil Damper Battery Holder On Off Front Two Speed Transmission Fuel Tank Fuel Tank Lid Switch Differential 6 e NITRO 4 TEC 3 3 wi The following guide is an overview of the procedures for getting vour Nitro 4 Tec 3 3 running from opening the box to breaking in and tuning 1 Read the safetv precautions on page 4 For your own safety understand where carelessness and misuse could lead to personal injurv 2 Charge the EZ Start battery pack See page 25 The EZ Start requires a fullv charged 7 2 volt batterv pack sold separately 3 Install the antenna See page 13 Install the antenna mast in Nitro 4 Tec 4 Decal and Install the body See page 8 You will need to use the body during break in so it s best to apply any additional decals before you use the body 5 Install the body mounts
6. alkaline 5 charging 11 25 compartment 9 11 installing 12 NiCad nickel cadmium 10 11 NiMH nickel metal hydride 10 11 receiver 12 rechargeable 12 transmitter 11 Battery Holder 6 BDC Bottom Dead Center 19 37 Bearing Block 6 Bellcrank 6 Body Mount 6 installing 8 Break in 19 27 starting 27 Tank 1 28 Tank 2 28 Tank 3 28 Tank 4 28 Tank 5 28 Tank 6 28 winter 29 Bumper Plate 6 Camber 33 Camber Link Turnbuckle 6 Carburetor carb 18 19 23 adjustments 23 fine tuning 31 slide carburetor 20 venturi 23 Chassis 6 Clean out 19 Clutch bell 18 changing 35 Combustion chamber 19 Connecting rod 19 maintenance 36 Cooling fins 19 Crankcase 18 19 Crankshaft 18 19 Customer service 3 Cylinder sealing 27 Decals 8 Differential 6 Drive Belt 6 adjustment shims 34 pulley 6 tension adjustments 34 Driving 32 Dyno 19 E mail 3 Engine TRX 3 3 6 clearing a flood 37 cutting out 29 detonation 30 hesitation 30 high altitude operation 28 lubrication 21 24 31 overheating 29 30 priming 20 27 shut off clamp 18 26 sluggish 28 30 stalling 27 30 36 starting 26 27 temperature 27 29 31 terms 19 tuning 29 tuning by temperature 31 EZ Start 18 19 25 battery 26 installing 25 controller 18 drive unit 18 Glow Plug LED 26 motor 6 18 Motor LED 26 plug 6 18 glow plug wire 18 ground wire 18 negative wire 18 positive wire 18 protecti
7. 3 3 Racing Engine exhaust fumes are harmful alwavs run Vour model outdoors in a well ventilated area Your engine must be at room temperature 70 F or 21 C or above the first time vou start it If it s cooler than room temperature outside remove all fuel and keep vour Nitro 4 Tec indoors until vou re readv to start it and then take it outside If it s colder than 45 degrees special considerations should be made See cold weather break in on page 29 We do not recommend running the model in temperatures below 35 degrees Vour TRX 3 3 Racing Engine doesn t usuallv require priming If vou do need to prime vour engine watch the fuel line carefullv to avoid flooding vour engine See page 37 for information 1 Turn on the radio svstem see page 15 on clearing a flooded engine 2 Make sure the throttle trigger on the transmitter is in the idle neutral position Factorv Needle Settings Vour carburetor is preset at the factorv to give the correct air to fuel ratio and idle speed for engine break in Do not adjust the carburetor unless vou observe a poor running condition that requires correction see page 24 for stock settings 3 Connect the EZ Start controller according to the instructions on page 26 4 Press the starter button in short two second bursts and watch for fuel moving through the fuel line up to the carburetor Watch closely The fuel moves very fast If the fuel doesn t move through the line within 5
8. a 2 0mm hex wrench to adjust the shift point 1 Stop engine 2 Rotate the drum until the access hole is visible from the top 3 Hold the spur gear set and roll the car forward while looking through the access hole Note that you will see two set screws through the access hole as you roll the car forward The first one holds the two speed mechanism to the shaft Do not loosen this screw unless you want to remove the two speed mechanism The second is the adjustment set screw Refer to the drawing to identify the screws 4 Insert a 2 0 hex wrench 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 screw and spring to fall out 7 Use 1 8 turn increments to find the approximate desired shift point 8 Check performance by running a test lap after each adjustment 9 Use 1 8 1 16 turn increments to fine tune the shift point The Nitro 4 Tec is supplied with soft compound race quality tires Due to the high power output of the TRX 3 3 Racing Engine and the high performance nature of the tires suspension alignment is critical to achieving maximum tire life Proper alignment promotes e
9. and grime Accumulated grime will decrease the engine s ability to cool itself To maintain optimum radio system performance the RX Power Pack receiver battery should be recharged after each hour of runtime O Tighten the wheel nuts especially on the left side Use the 8mm end of the included glow plug wrench After each running session Perform after run maintenance on the engine This clears the engine of destructive moisture and other corrosive deposits Read on for after run maintenance procedures O Inspect the gears for wear broken teeth or debris lodged between the teeth e Inspect the vehicle for obvious damage or wear Look for 1 Loose or missing screws 2 Cracked bent or damaged parts 3 Cut or loose wiring 4 Cut or kinked fuel lines 5 Signs of fuel leakage Other periodic maintenance Connecting rod The connecting rod should be replaced when the piston and sleeve are replaced Also replace the piston wrist pin and G clip whenever the connecting rod is replaced As with other internal engine components connecting rod life depends engine s usage and 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 was used and maintained The piston and sleeve should be replaced when they no longer seal effectively loss of compressi
10. are a large factor in controlling the engine timing and power output Priming Manually causing fuel to move from the fuel tank up to the carburetor This is sometimes necessary after the engine has been sitting for a long period of time and all of the fuel has drained back to the tank On a Traxxas model this is done by holding your finger over the exhaust tip for one or two seconds while the engine is starting Punch A term that refers to how quickly the model responds to throttle input or how quickly it accelerates Rich A running condition where the engine is getting too much fuel for the available air It is better to run an engine slightly rich to increase engine life Excessively rich mixtures cause the engine to have sluggish performance with exaggerated blue smoke and unburned fuel coming from the exhaust rpm Abbreviation for revolutions per minute how many times the engine crankshaft spins in a minute Sleeve Internal engine part that contains the piston The precise fit between the sleeve and the piston creates a seal that allows engine to have the required compression for combustion The sleeve in a TRX engine is made of brass and is then hard chrome plated Slide carburetor The throttle on a slide carburetor closes and opens by sliding a barrel in and out of the carburetor body This type of carburetor is preferred for performance use because it provides a less restrictive straight through air path than the barrel
11. be driven with the body on Driving procedure Gently pull the throttle trigger to 1 2 throttle over a 2 second count Then gently apply the brake to stop Count the two seconds out while accelerating one thousand one one thousand two and then stop Repeat this starting and stopping procedure until the second tank of fuel is nearly empty 3 When the fuel tank is nearly empty shut off the engine and let it cool for 15 minutes N 1 Driving procedure Gently pull the throttle trigger to 1 2 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 starting and stopping procedure until the third tank of fuel is nearly empty 1 4 2 Seconds 15 Minutes 1 2 1 2 2 Seconds 15 Minutes 3 1 2 3 Seconds 4 Full 3 Seconds 5 Full 5 Seconds 2 As the engine loosens the idle speed may increase and cause the model to try to creep forward when stopped Reduce the idle speed by turning the idle adjustment see page 18 on the carburetor counterclockwise 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 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 on
12. carburetor design Stall When the engine stops running usually due to an incorrect fuel mixture setting or running out of fuel TDC Top dead center The top most position of the engine piston stroke Tuned pipe The tuned exhaust pipe usually consists of a specially shaped metal or composite chamber with baffles that is designed to enhance the power output of the engine Wear in Fitment process that occurs during engine break in where internal engine parts develop an even more precise matched fit through actual use under controlled circumstances WOT Abbreviation for wide open throttle Use the Right Fuel It s imperative that you use the correct fuel in your TRX 3 3 Racing Engine for maximum performance and engine life Traxxas Top Fuel should be used to ensure correct engine lubrication performance and ease of tuning Traxxas Top Fuel has been proven in thousands of engines so you can count on it every day for great performance Top Fuel is the only fuel which is 100 certified for use in Traxxas engines Traxxas Top Fuel is made with just the right balance of the highest grade natural and synthetic lubricants to allow excellent throttle response and the best top end performance without sacrificing long term durability All of the components in the fuel are carefully selected from the best materials available and then custom blended to match the metallurgy and temperature characteristics of Traxxas eng
13. dense more air molecules for a given volume of air and therefore requires more fuel more fuel THE TRX 3 3 RACING ENGINE molecules to maintain the correct air fuel ratio Warmer air is less dense fewer air molecules and therefore needs less fuel to maintain the 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 See page 30 for more information on how air density affects engine tuning Warm Air Less Dense Cold Air More Dense A turn refers to tightening turning in or loosening turning out mixture needles A full turn refers to turning the needle 360 so a 1 2 turn would be 180 a 1 4 turn would be 90 and so on 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 idle and low rpm part throttle engine speed The high speed needle is used to meter the fuel when the throttle is open from part throttle to wide open throttle WOT Two needles on the TRX 3 3 Racing Engine provide precise control of the air fuel ratio across the engine s entire rpm range The maximum possible fuel flow is always controlled by the high speed needle It works like the main water valve on a garden hose Turn it clockwise to close
14. from lack of air filter maintenance or running through water then the internal engine components could wear out extremely fast Engine performance sluggish amp Engine performance depends mostly on the fuel mixture settings and how they compensate for the current atmospheric conditions Before you suspect other failures with the engine richen the high speed needle at least 1 4 turn and then retune the engine for performance see page 29 O O O TROUBLESHOOTING YOUR NITRO 4 TEC 3 3 Try a new Traxxas 3231 glow plug Sometimes a glow plug will work well enough to start the engine but not be able to deliver the engine s full performance potential If the fuel mixture seems to be set correctly make sure the fuel is fresh If the fuel is old or was left uncapped for a long period then some of the important fuel components could have evaporated Try new fresh Traxxas Top Fuel Check to make sure there is no binding in the driveline that would cause excessive loads on the engine NITRO 4 TEC 3 3 39 40 e NITRO 4 TEC 3 3 INDEX ABC 19 Adjustments 33 After run procedure 36 Air density 30 Air filter 6 18 19 22 cleaning 22 foam 19 Air intake 18 Air fuel mixture 23 Air fuel ratio 23 Alignment 33 Altitude 28 Ambient temperature 31 Antenna receiver 9 13 mount 6 Antenna transmitter 9 Atmospheric conditions 23 31 Barometric pressure 31 Baseline setting 31 Batteries 11
15. fuel with your fresh fuel supply If you leave fuel in the tank transporting or handling your Nitro 4 Tec may cause fuel to run into the engine 3 With the fuel tank empty and the throttle at the idle position try to start the engine The engine will most likely start and run for a few seconds as it uses up any fuel remaining in the engine and fuel lines 4 Once the engine stops clean the outside of the engine with compressed air or spray motor cleaner Once the engine is clean and dry remove the glow plug power wire glow plug and air filter MAINTAINING AND STORING YOUR NITRO 4 TEC 3 3 5 Open the throttle fully and spray a one second burst of WD 40 into the Piston stuck at top dead center TDC carburetor and into the glow plug hole Caution Wear safety glasses to Top dead center is the position where the piston is EEE prevent spray from getting into your eyes If you are using after run at the very top of the tapered sleeve Occasionally an EN oil follow the manufacturer s instructions engine can get stuck at this position This is most centers and paint supply 6 Place a rag or paper towel over the engine to catch any WD 40 or after likely to happen on new engines during break in but stores in a spray bottle is run oil that may come out the carburetor or glow plug hole can also happen at other times If the engine is stuck an extremely effective at TDC use the following procedure to release the piston fro
16. model with the engine off Make sure your transmitter antenna is fully extended and then walk away from the model with the transmitter until you reach the farthest distance you plan to operate the model Operate the controls on the transmitter once again to be sure that the model responds correctly 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 The TRX 3 3 Racing Engine is the next generation of TRX nitro power The larger displacement and advanced porting generate class leading horsepower while still maintaining the TRX Racing Engine characteristics of broad linear power delivery and ease of tuning Focused engineering and rigorous testing have yielded unprecedented power and uncompromising performance that turns ready to run into Ready To Race The TRX 3 3 Racing Engine takes a total system approach Each part of the engine from the air filter to the exhaust tip is carefully engineered to work in harmony with other engine components Each part complements the next to extract maximum power The TRX 3 3 Racing Engine is designed to be tolerant of variations in tuning and to run successfully through a wide range of variable atmospheric conditions such as changes in temperature humidity and altitude In order to get the longest engine life and keep the TRX 3 3 Racing Engine in top running condition it is very import
17. of the manual 15 15 or 15 refers to the displacement of the engine The TRX 2 5 Racing Engine is 15 cubic inches or 2 5 cubic centimeters cc The name TRX 2 5 is derived from the cc measurement 20 20 or 20 refers to the size of the engine The TRX 3 3 is 20 cubic inches or 3 3 cubic centimeters cc The name TRX 3 3 is derived from the cc measurement ABC Abbreviation for aluminum brass and chrome Refers to engine construction that consists of an aluminum piston that slides in a chrome plated brass sleeve The TRX 3 3 uses ABC construction Air filter The air filter sits atop the carburetor and prevents harmful dust and dirt from entering the engine Dirt ingestion is the number one cause of premature engine failure so the engine should never be run without the air filter in place BDC Bottom dead center The bottom most position of the engine piston stroke Break in Break in is the procedure for running a brand new engine according to specific instructions This correctly prepares the engine for normal running The break in procedure can be different for different makes of engines Follow the Traxxas directions for break in exactly Carb Abbreviation for carburetor Carburetor The carburetor atomizes mixes the fuel with the air so that the engine can burn it There are two types of carburetors slide carbs and barrel carbs The TRX 3 3 uses the superior slide carburetor design Clean o
18. that do not have access to a temperature probe a drop of water on the cooling head around the glow plug area should slowly sizzle for approximately 6 to 8 seconds around 200 to 210 degrees If the water sizzles for only a few seconds then it is likely that it is over 220 degrees and needs to cool down If the water takes a long time or does not evaporate at all then the engine is too cool OG NITRO 4 Tec 3 3 29 When adjusting the low speed fuel mixture it is very important to make several high speed runs with Nitro 4 Tec between adjustments to clear out any excess fuel Perform the pinch test immediately after If the engine is allowed to idle for a long period of time it could load up with fuel and give you an inaccurate measurement from your pinch test Higher nitro requires a richer fuel mixture When running 33 fuel richen your high speed needle 3 4 turn if previously running 20 nitro and then re tune the engine for maximum performance See page 21 for more information 30 e NITRO 4 Tec 3 3 THE TRX 3 3 RACING ENGINE Before you begin tuning the engine should be warmed up to its normal operating temperature and running slightly rich All final tuning adjustments must be made to the engine at its normal operating temperature You can tell the engine is running rich by noting any of the following Sluggish acceleration with blue smoke coming from the exhaust Nitro 4 Tec may not shift into s
19. the valve counter clockwise to open it When the throttle is at idle or partially open the low speed needle meters the fuel flow at the outlet needle seat where the fuel enters the carburetor venturi This second valve acts like the spray nozzle at the end of the garden hose in our example When you accelerate from idle the throttle opens and the low speed needle is pulled away from the needle seat This allows more fuel to flow with the increased air flow As the throttle NITRO 4 TEC 3 3 23 Tuning Your TRX 3 3 Racing Engine on page 29 for complete information on adjusting the air fuel mixture and idle speed Factory Needle Settings If your factory preset carburetor adjustments have been tampered with use the following settings Set the high speed needle to 4 turns out from closed Set the low speed needle so the screw head red in Fig A is flush even with the end of the slide yellow in Fig A Low Speed Needle Adjustment Alwavs use the factorv settings for initial starting Only use these settings when the factorv settings have been lost 2 Higher nitro requires a richer fuel mixture When running 33 fuel richen your high speed needle 3 4 turn if previously running 20 nitro and then re tune the engine for maximum performance 24 e NITRO 4 TEC 3 3 THE TRX 3 3 RACING ENGINE Water Valve Controls Overall Flow High Speed Needle gt Richen Y Water Nozzle
20. tight fit between 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 broken in If the engine sticks at TDC see page 37 for instructions on freeing the engine Shutting Off The Engine Turning off the switch for the radio will not shut off the engine To shut off the engine use the shut off clamp on the fuel line Squeeze the clamp closed to shut off the fuel supply to the engine Don t forget to release it when you restart the engine Avoid shutting off the engine by placing your finger over the exhaust outlet especially if you are through driving for the day This will leave more unburned fuel in the engine that could lead to harmful corrosion Always be careful not to touch the exhaust pipe after running it can become very hot The TRX 3 3 Racing Engine uses a ringless aluminum brass chrome ABC piston sleeve construction This type of engine design relies on a very precise running fit between the piston and sleeve for cylinder sealing Engine break in is necessary to allow the piston and sleeve to develop an extremely precise fit and optimum cylinder sealing Therefore proper engine br
21. to by its flag color and channel number as shown below CHANNEL FREQUENCY FLAG TRAXXAS BAND COLOR PART No EE 1 26 995 BROWN 2031 EZ 2 27 045 RED 2032 4 3 27 095 ORANGE 2033 ES 4 27 145 YELLOW 2034 EE 5 27 195 GREEN 2035 EE 6 27 255 BLUE 2036 Clearing your frequency A routine verbal check to make sure nobody else in your area is operating on the same channel Always clear your freguency by calling out your channel number before operating your model Wait or move to another area if your channel is already being used Crystal X tal The plug in device that determines which channel the radio system will operate on For each channel there are two crystals one for the receiver and one for the transmitter Of those two crystals the one marked RX with the lower number 455 MHz lower must be inserted into the receiver Frequency band The radio frequency used by the transmitter to send signals to your Nitro 4 Tec All Traxxas RTR models operate on a 27 MHz frequency band mAh Abbreviation for milliamp hour Measure of the capacity of the battery pack The higher the number the longer the battery will last between recharges Neutral position The standing position that the servos seek when the transmitter controls are at the neutral setting NiCad Abbreviation for nickel cadmium The original rechargeable hobby pack NiCad batteries have very high current handling high capacity and can last up to 1000 charging c
22. to the optimum setting by richening the high speed needle at least 1 8 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 the fuel line going into the carburetor use the engine shut off clamp The engine should run for 2 3 seconds speed up and then shut off 3 If the engine runs longer than 3 seconds then lean the low speed needle 1 16 turn make several more high speed runs and retest 4 If the engine shuts off immediately without speeding up then richen the low speed needle 1 8 turn make several more high speed runs and retest When the low speed needle is set correctly the engine s throttle response should be very quick even to the point of making it difficult to keep Nitro 4 Tec from doing a wheelie when you accelerate Humidity Lower Slightly more dense Slightly richer Higher Slightly less dense Slightly leaner Pressure barometer Lower Less dense Leaner Higher More dense Richer Temperature Lower More dense Richer Higher Less dense Leaner Altitude Lower More dense Richer Higher Less dense Leaner Nitro Lower Leaner Higher Richer Idle Speed Adjustment Once th
23. 30W or less flow more smoothly and are more consistent while thicker oils provide more dampening Use only 100 pure silicone shock oil to prolong seal life The ride height for Nitro 4 Tec can be adjusted by adding or removing the clip on spring pre load spacers Instead of adding spacers to increase stiffness use stiffer 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 bottoming of the chassis Also in order not to disturb cornering balance front and rear tire height diameters should be equal Replace excessively worn tires Belt Tension Adjustments The Nitro 4 Tec s front and middle drive belts are designed to have a high initial tension During the break in period the drive belts and pulleys will wear in and the belt tension will gradually decrease The front and middle belt tensions can be tightened by inserting shims under the front bearing block Do not tighten the front belt tension unless there is more than 0 25 inch 6mm deflection at the center of the belt see drawing To tighten the belt add the 0 1mm shim first and retest If the belt is still loose remove the 0 1mm sh
24. Not a Toy For Expert Drivers Only This product is capable of extreme speed and acceleration It carries our highest skill level rating 5 and 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 4 e NITRO 4 TEC 3 3 SAFETY PRECAUTIONS All of us at Traxxas want you to safely enjoy your new Nitro 4 Tec 3 3 Operate your Nitro 4 Tec sensibly and with care and it will be exciting safe and fun for you and those around you Failure to operate your Nitro 4 Tec in a safe and responsible manner may result in property damage and serious injury The precautions outlined in this manual should be strictly followed to help ensure safe operation You alone must see that the instructions are followed and the precautions are adhered to O nous Always follow all directions and precautions printed c on mike fuel container Model engine fuel is poisonous to humans and animals Drinking the fuel can cause blindness and death Handle with care and respect Model engine fuel especially when in a fuel dispensing bottle may look like a cool drink to a child Model engine fuel is flammable Never allow smoking sparks heat or f
25. Part 3030X is a peak detecting unit that will charge the RX Power Pack Part 3036 flat pack or 3037 hump pack in about one hour The peak detection circuitry automatically shuts off the charger when the maximum charge has been achieved The TRX Power Charger also includes a 7 2V adapter for charging 7 2V EZ Start batteries The TRX Power Charger can operate on either AC or DC power A special wiring harness for Nitro 4 Tec Traxxas part 3034 that includes a handy external charging jack is required The optional DC car adapter Part 3032 features a tangle free extra long wire and integrated fuse The long charging cord allows the model to remain outside the car while charging Caution Never charge batteries in an enclosed car interior or while driving Never leave charging batteries unattended Monitor them closelv Traxxas integrated TRX Power Svstem is the easiest wav to add the power and economv of rechargeable batteries to vour Nitro 4 Tec 3 3 Consult your hobby dealer for purchasing information J 1 IN You must install the antenna mast tube before you operate your Nitro 4 Tec You ll find the plastic antenna tube and tip in the bag with your manuals and documentation 1 Locate the black antenna wire that exits the receiver cover The receiver cover is located between the fuel tank and the tuned pipe The antenna wire exits the cover towards the front 2 Pull the wire straight with your fingers and then insert the end
26. Replacement Plan ERP It could save you time and effort Details are in your model s documentation package or on our website The TRX 3 3 is designed to be easy to rebuild Critical engine components such as the crankcase crankshaft and engine bearings are made to extremely high quality standards and should under normal circumstances outlast multiple sets of pistons sleeves connecting rods and wrist pins reciprocating assemblies It could be more economical for you to continue to use your good bearings and crankshafts and simply replace the reciprocating assembly as needed Engine assembly is not difficult and replacing the reciprocating assembly does not require any special tools or skills OG 36 e NITRO 4 TEC 3 3 MAINTAINING AND STORING YOUR NITRO 4 TEC 3 3 Your Nitro 4 Tec requires timely maintenance in order to stay in top running condition Neglecting the maintenance could allow dirt deposits and moisture to build up inside the engine leading to internal engine failure The following procedures should be taken very seriously After each hour of running Clean and re oil the air filter The instructions for this procedure are on page 22 We cannot stress enough the value of cleaning your air filter at the scheduled intervals The cleanliness and condition of your air filter directly influences the running life span of your engine e Clean the outside of the engine of accumulated dirt oil
27. ant to perform regular routine maintenance The number one cause of premature engine wear and failure is lack of care and maintenance 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 longest life from your TRX 3 3 Racing Engine Engine break in will take between one and two hours Old style break in procedures such as idling the engine on the bench for several tanks of fuel or simply running the engine with a very rich fuel mixture for the first 4 tanks of fuel will not achieve the best results Follow the easy steps in this manual A clean air filter is critical for long engine life Due to the high performance nature of the TRX 3 3 Racing Engine a tremendous amount of vacuum is created to move a large volume of high velocity air through the carburetor Dirt is the worst enemy to your engine Clean the air filter after each hour of running to prevent sucking dirt into the engine An extra pre lubed air filter element has been provided to encourage you to maintain your air filter am Perform after run maintenance on the engine to prevent corrosion from building up on the internal engine components The fuel n
28. ase the amount of fuel the engine receives Low speed needle LSN Needle valve that controls the fuel mixture at low throttle openings Needle valve Valve consisting of a tapered needle that closes against a corresponding seat to regulate fuel flow Nitro Abbreviation for nitromethane a component of model engine fuel that improves fuel combustion and power output Nitro also refers to a class of R C powered by model engines instead of electric Nitro content The amount of nitromethane used in the fuel Usually measured as a percentage of the total fuel volume Traxxas engines are optimized to use 10 20 nitro 33 nitro may be used for racing Nitromethane Nitromethane is a component in the fuel that increases power from the combustion process up to a point Engines are generally optimized to use a range of nitro content for the best power O ring Rubber O shaped ring used as a sealing gasket Pipe Abbreviation for the tuned exhaust pipe on a nitro engine See Tuned Pipe Piston The piston is the internal engine part that is attached to the upper end of the connecting rod and moves up and down in the cylinder sleeve The precise fit between the piston and the sleeve creates a seal that allows the engine to have the required compression for combustion Port Ports are openings in the sleeve that allow atomized fuel to enter the combustion chamber and burned exhaust gases to exit The shape and location of the ports
29. at automatically shuts the charger off when the battery is fully charged If you re using a 15 minute timed charger always fully discharge the battery pack before each charge Some high mAh battery packs 1500 mAh or higher require more than the standard 15 minutes of charge time If the battery pack is cold after 15 minutes of charging add another 5 minutes of charge time Closely monitor the battery pack and stop charging it when it begins to feel warm to the touch Never leave a battery charging unattended Alwavs follow charger manufacturer s instructions Inexpensive overnight wall chargers mav also be used OG NITRO 4 Tec 3 3 25 F When the EZ Start controller is in protection mode wait at least three minutes before attempting to start the engine to give the starter motor time to cool It s normal for your EZ Start controller to become warm after repeated use fa L D 26 e NITRO 4 TEC 3 3 THE TRX 3 3 RACING ENGINE Using the EZ Start Your EZ Start controller plugs into a 4 prong receptacle in the center of the rear deck on your Nitro 4 Tec When the red button on the controller is pressed the EZ Start motor begins to spin the engine and power from the control unit heats the glow plug Assuming all settings and preparations are correct the engine should start almost immediately Each of the two status indicator LEDs on the hand held control unit the Motor LED and the Glow Plug LED sho
30. aturally attracts moisture and corrosion can build up very quickly inside the engine if it is not prevented A few minutes spent before and after each time vou run vour model will allow you to enjoy it for a long time to come Read on for more exciting details about your new engine B Traxxas strongly discourages changing or modifying any part of the TRX 3 3 Racing Engine Old tech tips and tricks that may have boosted the power of other engines could seriously diminish the performance of the TRX 3 3 Racing Engine There s more advanced thinking development and testing in the stock parts of your TRX 3 3 Racing Engine than in many aftermarket manufacturer s performance parts The TRX 3 3 Racing Engine is already the most powerful engine in its class and may not benefit from average low tech aftermarket bolt on performance items NITRO 4 TEC 3 3 17 THE TRX 3 3 RACING ENGINE Air Filter Head Protector PowerTune head Cylinder head Air Filter Housing VPRA TI AY EZ Start Drive Unit EZ Start Motor NI W Throttle Arm Fuel Intake foie Mout Air Intake Carburetor crankcase Clutch Bell Flywheel Crankshaft Glow Plug Wire EZ Start Controller EZ Start Plug Positive Wire Ground Wire Negative Wire Fuel Line Engine Shut off Clamp Header Tuned Pipe Fuel Tank 18 e NITRO 4 TEC 3 3 You ll find these Nitro R C engine terms throughout this section
31. aturely and seat This also provides an easy way to gauge how Wrap the cooling head with a paper towel in it out or stall many turns out from closed clean rag or sock to help keep the engine Leaning the engine beyond the low speed needle running around the recommended 200 to 215 the safe allowable limits will adjustment is set to break in temp If too much heat is contained result in poor performance the engine can actually run too hot Make sure and almost certain engine RICH that you monitor the engine s temp closely for icati Sluggish Performance y 9 p y damage Indications of an Break In Settings the first couple of tanks until you get the right amount of cover for the cooling head This will of course depend on your current weather conditions Adjusting the cover up and down exposing more or fewer cooling fins is a convenient way to regulate engine temps overly lean mixture include Overheating temperature beyond 270 F at the glow plug Little or no blue smoke coming from the exhaust If any of these conditions are present stop immediately and richen the high speed mixture 1 4 turn The engine will probably be slightly rich at that setting and you can then retune for performance Always tune for performance by starting rich and moving leaner toward the ideal setting Never try to tune from the lean side There should always be a light stream of blue smoke coming from the exhaust For owners
32. bove will ensure a good break in for your new nitro engine and provide many hours of enjoyment Warm the engine to approximately room temperature by removing The engine s performance High Speed Power Loss all fuel and storing the vehicle inside at room temperature until just before starting the engine An extremely cold engine can become depends on the fuel mixture Turn the mixture needles Overheating LEAN damage is likely Richen the high speed needle 1 4 turn and retune clockwise to lean the fuel mixture and counterclockwise difficult to start Cutting out stalling O After the engine is running it is important to keep the temperature of i it i Optimum lt RACING the engine up around 200 to 215 degrees during break in In weather 6 f Leaning me fuel for High Speed F i h mixture will increase engine Performance or your convenience the below 45 degrees the TRX 3 3 Racing Engine will tend to run at lower AE L EVERYDAY low speed needle has a power up to the engine s Optimum RUNNING temperatures between 160 to 180 degrees when tuned at proper break mechanical limits for Climbing positive stop that prevents in mixture settings This is too cool for break in Do not lean the fuel 8 rok peec SAFE RANGE it from being over tightened mixture to increase engine temperature This will also decrease 2 and damaging the needle lubrication and cause your piston sleeve to wear prem
33. ce needs Maintenance and replacement parts may be purchased directly from Traxxas by phone or online at www 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 Nitro 4 Tec 3 3 Toll free support is available to U S residents only Traxxas 1100 Klein Road Plano Texas 75074 Phone 972 265 8000 Toll free 1 888 TRAXXAS Traxxas U K P O Box 1128 Winterbourne Bristol BS36 2SH England Phone 44 117 956 1002 Internet www Traxxas com E mail support OTraxxas com Entire contents 2006 Traxxas Traxxas Nitro 4 Tec TRX 3 3 Racing Engine TQ Top Fuel EZ Start Ready To Race Ready To Win and ProGraphix are trademarks or registered trademarks of Traxxas Other brand names and marks are the property of their respective holders and are used only for purposes of identification No part of this manual may be reproduced or distributed in print or electronic media without the express written permission of Traxxas NITRO 4 TEC 3 3 3 7 All instructions and precautions outlined in this manual should be strictly followed to ensure safe operation of your Nitro 4 Tec 3 3 H Nitro 4 Tec 3 3 is not intended for use by children under 16 years of age without the supervision of a responsible and knowledgeable adult
34. e one thousand two one thousand three and then stop Repeat this starting and stopping procedure until the fourth tank of fuel is nearly empty 2 Apply the throttle gradually Your finger should not reach full throttle until the end of the three second count Nitro 4 Tec may try to shift into second gear If it does reduce the throttle input Do not let Nitro 4 Tec shift out of first gear 3 Keep your driving smooth and consistent 4 When the fuel tank is nearly empty shut off the engine and refuel 1 Driving procedure Gently pull the throttle trigger to full throttle over a 3 second count hold for 2 more seconds and then gently apply the brake to stop Count the five seconds out while accelerating Repeat this starting and stopping procedure until the fifth tank of fuel is nearly empty 2 The model should now be shifting into second gear If it is not try turning the high speed needle clockwise 1 8 turn to lean the fuel mixture slightly and test for shifting 3 When the fuel tank is nearly empty shut off the engine and refuel Clean your air filter before you proceed Refer to the instructions on page 22 During the sixth tank of fuel the engine can be tuned for general performance use Proceed to the next section in this manual off Apply throttle gradually On Apply throttle gradually On Reduce idle speed if necessary On Do not allow shifting to high gear On Accelerate over 3 second count
35. e factory settings until after the engine is started and running and you have been able to observe the engine 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 TDC see page 37 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 neutral position the throttle slide should be stopped against the idle adjustment screw Always use the idle speed adjusting screw to control engine idle Do not use the throttle trim on the transmitter to adjust idle speed The idle speed should be set as low as possible and still maintain reliable running The Traxxas EZ Start brings the convenience of push button electric engine starting to your Nitro 4 Tec The EZ Start consists of a hand held control unit and an on board motorized starter Power for the EZ Start system comes from a 7 2 volt rechargeable battery pack installed in the hand held control unit battery sold separately The engine glow plug is heated automatically by the EZ Start system eliminating the need to keep up with a separate glow plug igniter The voltage to the glow plug is kept constant regardless of the load placed on the starter by the starter motor The Glow Plug LED light emitting diode on the cont
36. e glow plug is located in the cylinder head at the top of the combustion chamber It contains an element that glows red hot when voltage is applied When the engine is being started the heat from the glow plug ignites the fuel mixture and starts the combustion process NITRO 4 Tec 3 3 19 20 e NITRO 4 Tec 3 3 THE TRX 3 3 RACING ENGINE Glow plug driver This tool clips onto the glow plug and supplies the required voltage to light the glow plug element It is also called an igniter EZ Start equipped engines do not require this separate tool Header The aluminum tube that connects the exhaust system to the engine exhaust port The length and diameter of the header must be carefully selected to extract the most power from the engine High speed needle HSN Adjusts the carburetors fuel air mixture at high throttle openings Idle speed The speed rpm the engine runs at when the transmitter s throttle trigger is at neutral Idle speed screw ISS Located on the carburetor body This screw adjusts the idle rpm of the engine Lean A running condition where the engine is not getting enough fuel for the available air Symptoms include engine overheating or the engine runs for a short time and then stalls particularly at high speed This is a dangerous condition that should be corrected immediately or it can ruin your engine Leaning the mixture Turning either the high speed and or low speed needle s clockwise to decre
37. e high and low speed mixtures have been set reduce the idle speed to the minimum reliable idle speed Remember this adjustment should be made while the engine is running at normal operating temperature 1 Turn the throttle trim on the transmitter so the brakes are applied note its original position This ensures that the throttle slide is resting against the idle adjustment screw 2 Turn the screw counterclockwise to reduce the idle speed or clockwise to increase it The idle speed should be set as low as possible while still maintaining reliable running characteristics 3 Reset the throttle trim on the transmitter to its original position Fine Tuning the Carburetor After fine tuning your TRX 3 3 Racing Engine at the end of the break in procedure no major adjustments to the fuel mixture are usually necessary Make note of the temperature humidity and barometric pressure at the time you finished fine tuning your carburetor Current weather conditions can be found online from national websites local TV news websites and television This information will be considered your baseline setting You may need to adjust your carburetor needles to compensate for changes in temperature and barometric pressure air density from day to day Generally you ll need to richen the fuel mixture when the weather is colder than your baseline temperature and the air density is higher Lean the fuel mixture when weather is warmer than your baseline tempe
38. e to lubricate the piston and Don t put the fuel from 1 Remove the blue glow plug wire sleeve Do not use too much oil It will hydro lock your tank back into your 2 Remove the glow plug and gasket with the glow plug wrench supplied the engine Verify the starter will spin the engine fuel jug Dispose of it with your model A 5 16 or 8mm nut driver will also work with the glow plug out properly following city or 4 Rotate the flywheel so the piston is at bott eeen i i Rotate the fivwheel so the piston is at bottom 3 Turn the model upside down and plug in the EZ Start controller y pi Bottom Dead Center dead center and replace the glow plug with gasket 4 Push the EZ Start button for several seconds to clear the engine P Reconnect the blue glow plug wire of excess fuel Do not look into the glow plug hole while the engine is spinning or you could spray fuel into your face 5 You should now be able to start the engine with the EZ Start Alwavs wear eve protection when using 5 Turn the model over and reinstall the glow plug and gasket compressed air or spray cleaners and lubricants 6 Reconnect the blue glow plug wire to the glow plug 7 Reconnect the EZ Start controller 8 Do not prime the engine Pull the throttle to 1 2 throttle and push the EZ Start button The engine should start inmediately NITRO 4 Tec 3 3 37 The following section addresses some very basic engine and radio questions you may have abo
39. eak in is critical to achieving the fastest most reliable engine performance Allow yourself about 1 to 1 2 hours to complete the break in procedure The engine break in period will take 5 tanks of fuel in a Nitro 4 Tec The break in time is not the time to impress your friends with your new Nitro 4 Tec You must wait until the engine is fully broken in before attempting sustained high speed running Patience and careful attention during break in will reward you with the best performing TRX 3 3 Racing Engine possible During break in your engine may appear to malfunction with symptoms like stalling inconsistent performance and fouled glow plugs These are simply the normal break in pains engines sometimes go through They will disappear once your engine is fully broken in Many owners report not experiencing any of these symptoms with TRX Racing Engines We recommend to go ahead and replace the glow plug with a new one after the engine break in procedure Engine Break in Procedure The focus during break in is to vary and limit the engine speed This will be accomplished by accelerating and stopping at different rates for the first 5 tanks of fuel As the engine begins to break in the duration and intensity of the acceleration will gradually increase Sustained high speed running is not permitted until the 6th tank of fuel Perform the initial break in on a large flat paved surface Nitro 4 Tec is very fast and by tanks 4 and 5 you
40. econd gear There is unburned fuel spraying from the exhaust tip Leaning the high speed fuel mixture increases performance High Speed Fuel Mixture Adjustment With the engine warm and running at a rich setting gradually lean the high speed fuel mixture in 1 16 turn increments Make several high speed passes after each adjustment to clear out the engine and note any change in performance The TRX 3 3 is extremely powerful Remember to apply the throttle gradually to prevent spin outs or loss of control Continue this procedure until there is no longer any performance improvement If any one of the following conditions occurs the fuel mixture is already past the maximum safe lean setting 1 There is no longer any performance improvement 2 The engine begins to cut out at high speed Danger 3 There is a sudden loss of power during acceleration Danger 4 The engine begins to overheat Symptoms of overheating include Steam or smoke coming from the engine not exhaust Hesitation or stalling during acceleration Popping or clattering sound when decelerating detonation G Fuel Mixture Adjustment Chart luctuating idle speed emperature measurement above 270 F at the glow plug A temperature reading above 270 alone does not necessarily indicate overheating Look for other symptoms of overheating combined with temperature for a more accurate warning eF eT Richen the fuel mixture
41. es Changing the Clutch Bell Gears 1 Remove the right rear wheel Remove the E clip from the two speed shaft Slide the pulley and belt off of the shaft being careful not to lose the pin that sits under the pulley Remove the pin Slide the spur gears off of the shaft If you are using optional gears you may have to loosen the right chassis stiffener to remove the spur gears 2 Lock the flywheel with a flathead screwdriver to immobilize it Use a 2 5mm hex wrench to unscrew the caphead screw that holds the clutch bell to the pilot shaft Remove the clutch bell ADJUSTING YOUR NITRO 4 TEC 3 3 3 To separate the gears from the clutch bell gently grip 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 first loosen the four 3x10 countersunk hex screws in the slotted holes in the bottom of the chassis Next loosen the two countersunk hex head screws in the bottom of the chassis which hold the slotted engine mount The engine should now slide back and forth Slide a strip of thin note paper between the spur gears and the clutch bell gears Push the clutch bell gear
42. g and maintenance procedures and is equipped stock with the most powerful Readv To Race smallblock engine available We want you to feel confident that you own the best performing car in the market and that it is backed by a team of professionals who aim to provide the highest level of factory support possible Nitro 4 Tec 3 3 is about experiencing total performance and satisfaction not just with your car but also with the company that stands behind it Thank you again for going with Traxxas We work hard every day to assure you the highest level of customer satisfaction possible We truly want you to enjoy your new Nitro 4 Tec 3 3 Traxxas Support Traxxas support is with you every step of the way Refer to the next page to find out how to contact us and what your support options are A Quick Start This manual is designed with a Quick Start path 1 EP that covers only the necessary procedures to get your model up and running in the shortest time possible If you are an experienced R C enthusiast you will find it helpful and fast Be sure and read through the rest of the manual to learn about important safety maintenance and adjustment procedures Turn to page 7 to begin We know you re excited 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 y
43. h nitro can be THE TRX 3 3 RACING ENGINE 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 higher nitro 33 Top Fuel is the optimum nitro percentage for the TRX 3 3 Racing Engine Increasing the nitro beyond 33 can introduce the need for engine modifications ports head shimming etc to avoid starting and tuning difficulties There are limits to how much nitro an engine can effectively use to make more power Lower nitro percentages have their own advantages Nitro is an expensive component in the fuel so 10 nitro blend is more economical for the sport user 10 also provides greater latitude with the needle settings for easier tuning 2 DANGER Model engine fuel is poisonous to humans and animals Drinking the fuel can cause blindness and death Handle with care and respect Keep it out of reach of small children at all times While driving do not leave your fuel dispensing bottle on the ground where a child could have access to it When using Traxxas Top Fuel using higher nitro percentages does not Follow fuel label warnings cause the engine to wear out faster 33 Top Fuel contains the same quality lubrication package as 10 and 20 Top Fuel Some non Traxxas high percentage nitro racing fuels do sacrifice some lubrication in attempts to increase performance We urge yo
44. he recommended cleaning intervals your engine 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 OG 22 e NITRO 4 TEC 3 3 Understanding the Carburetor adjustments The carburetor performs several functions It controls the engine s speed by restricting the intake of air and fuel into the engine It atomizes the fuel suspends the fuel droplets in the air and also controls the air fuel ratio of the mixture entering the engine how much air for a given amount of fuel a Air To help provide a better understanding of engine tuning and why it s necessary the following is a brief explanation of the air fuel combustion process that takes place inside the engine In order to create the cylinder pressure that results in power the engine burns the air fuel mixture Both air and fuel in correct amounts are needed for proper combustion It is the carburetor s job to mix the air and fuel together atomize the fuel in the correct proportion for the best possible combustion This is the ideal air fuel ratio The ideal air fuel ratio required for the engine remains roughly constant Due to variations in atmospheric conditions temperature humidity altitude etc fuel flow adjustment valves called fuel mixture needles are required to meter the fuel and maintain the ideal air fuel ratio in these ever changing conditions For example colder air is more
45. hold for 2 seconds THE TRX 3 3 RACING ENGINE Winter Break in Tips During the break in process the piston and sleeve wear into each other to form a precise fit The engine needs to heat up to a temperature around 200 to 215 degrees to allow the piston and sleeve to achieve this fit properly A precise fit between these two components is critical for proper compression and optimum performance If the engine runs too cold during break in the piston and sleeve will not expand to their appropriate sizes for break in and this can lead to premature wear of these components This wear may not become apparent until after winter has past and the engine is operated under warmer running conditions We do not recommend that you operate your engine below 35 degrees lJ Fahrenheit If you insist on running your vehicle below 35 degrees be a aware that nitro engines may be very difficult to start and tune at extremely cold temperatures Also at temperatures below freezing nitro fuel can actually begin to gel up and this can be harmful to the engine When tuning for performance watch closely to notice when there is no longer any increase in speed or power when the high speed mixture is lean If you lean the high speed mixture to the point that the engine cuts out hesitates or stalls you are well into the danger zone and engine Follow the remaining break in procedures as outlined in this Owners Manual This along with the steps listed a
46. ide the foam bumper over the front mounts as shown in the drawing The excess length of the mounts should be trimmed off after the body is installed Installing Front Body Mounts Foam Bumper The rear body mounts attach as shown in the drawing Installing Rear Body Mounts 3x14mm buttonhead cap screws P A A 3x10mm countersunk 1 cap screws Your Nitro 4 Tec model 4809 is equipped with the TQ Radio System The TQ is a 2 channel system that provides high power output up to a quarter mile and control for two servos The Nitro 4 Tec makes use of two channels for throttle brake and steering Throttle Neutral Adjust 4 Cell Battery Antenna Holder Steering Wheel Throttle Trim Na On Off Switch Steering Trim Steering Antenna A GN 6 THROTTLE TRIM Ie LA Top us STEERING TRIM Throttle Servo Throttle Trigger Receiver Battery Channel 1 Channel 2 Servo Reversing Not Used Channel 3 Switch Power Switch Battery Compartment Power Indicator NITRO 4 TEC 3 3 9 1 Learn terms related to the TRX 3 3 Racing Engine beginning on page 19 10 e NITRO 4 TEC 3 3 THE TRAXXAS TQ RADIO SYSTEM Please take a moment to familiarize yourself with these radio system terms They will be used throughout this manual Channel The 27 MHz frequency band is divided into 6 channels so that up to six models can be operated simultaneously Each channel is referred
47. im and add the 0 2mm shim and retest Using Belt Adjustment Shims The rear belt tension is adjustable via belt tension cams in the right and left rear side plates The rear belt in the Nitro 4 Tec transmits most of the engine s power Because of the high loading of the rear Left side plate Right side plate i Bulkhead Bulkhead belt the tension should be derden checked every 3 4 hours 20 25 tanks of fuel of running If the rear belt can be deflected more than 0 25 6mm see illustration the belt tension cams should be rotated rearward to the next eccentric slot Gear Ratios Another Nitro 4 Tec 3 3 feature is the ability to change the gear ratios Currently there are three optional gear ratios for the Nitro 4 Tec The stock gear ratio will provide very high 70 MPH top speeds The following gear ratio chart shows the available combinations with optional spur gears and clutch bells Gear Clutch Spur Primary Overall Teeth Teeth Reduction Reduction Ist 15 45 3 00 5 10 2nd 19 41 2 16 3 67 Explosive acceleration Ist 16 45 2 81 4 78 2nd 20 41 2 05 3 49 Very good acceleration Ist 15 41 2 73 4 65 r 2nd 19 37 1 95 3 31 Good acceleration Ist 16 41 2 56 4 36 2nd 20 37 1 85 3 15 Moderate acceleration Nitro 4 Tec gear ratios must be changed as 1st and 2nd gear sets in order to maintain compatible gear center distances The gear ratio chart gives the only four compatible ratio choic
48. ines You may use 10 20 or 33 nitro content fuel Try to use the same percentage all the time avoid switching back and forth between fuels We recommend that if you break in your engine on 20 fuel that you stick with that percentage If you do move to a higher or lower percentage make sure you readjust your fuel mixture to compensate see below Choosing a Nitro Percentage A commonly asked question is what is the difference between 10 20 and 33 fuels Increasing the nitro in the fuel is almost like adding extra oxygen to the combustion process It burns more efficiently improves combustion and delivers more power When increased nitro is used more of the other fuel components are then required inside the combustion chamber to maintain the perfect air fuel ratio Therefore overall fuel mixtures need to be richened slightly on the high speed needle about 3 4 of a turn counterclockwise when changing from 20 to 33 about 1 2 of a turn counterclockwise when changing from 10 to 20 This allows greater fuel flow through the engine and promotes cooler running even at the maximum lean settings If 33 improves power then it seems that the highest nitro content available beyond 33 should always be used in the engine In reality there are practical 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 muc
49. ing response and shortened radio range Caution Discontinue running your Nitro 4 Tec at the first sign of weak batteries to avoid losing control If the radio system doesn t appear to work when the transmitter and receiver switches are turned on check for correct battery installation OG 12 e NITRO 4 TEC 3 3 2 Remove the battery holder and 3 Stretch a rubber balloon over the THE TRAXXAS TQ RADIO SYSTEM The radio receiver in your Nitro 4 Tec uses 4 AA batteries The receiver battery holder is located underneath the top plate just to the right of the fuel tank 1 Press the tab on the reusable zip tie to release the battery holder install 4 AA alkaline batteries Make careful note of the battery polarity by comparing against the diagrams in the battery holder battery holder to prevent fuel contamination Install the battery holder into the car and secure it to the top plate with the reusable zip tie Make sure the battery holder is secure in the model and will not come loose If the tie wrap is loose it will mi interfere with the middle drive belt 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 dramatically improved servo performance The TRX Power Charger
50. l Tank Use a fuel dispensing bottle Traxxas Top Fueler parti 5001 to put fuel into the Nitro 4 Tec s fuel tank To fill the fuel bottle squeeze the air out insert the dispenser tip into the fuel can and release your grip on the bottle As the bottle expands fuel will be drawn into it 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 the base removed the foam element is visible in the bottom of the filter body Pull out the foam element To fill your model flip up the spring loaded cap on the fuel tank insert the tip of the fuel bottle and squeeze to dispense the fuel Fill the tank until the fuel level reaches the base of the filler neck Close the fuel tank lid making sure it closes tightly 3 Clean the filter parts by thoroughly washing all three pieces of the filter assembly in hot soapy water dishwashing detergent works well Repeat twice 4 Thoroughly dry the parts with a clean towel or compressed air Remember to wear your safety glasses when working with compressed air The TRX 3 3 Racing Engine air filter is specifically designed to deliver 5 Oil the foam element with foam filter oil Use the supplied Traxxas filter maximum performance while protecting your engine from dust and dirt oil pa
51. lame in the presence of fuel or fuel vapors The engine brakes and exhaust system may become extremely hot during use Be careful not to touch the parts especially when refueling or stopping the engine For outdoor use only Prolonged exposure to the engine exhaust can be harmful Avoid breathing the engine exhaust Always run your Nitro 4 Tec outdoors in a well ventilated area Never run the engine indoors Do not operate your Nitro 4 Tec at night or anytime your line of sight to the model may be obstructed or impaired in any way Never operate your Nitro 4 Tec in crowds of people or busy pedestrian areas Nitro 4 Tec is very fast and could cause injury to those unaware of its presence 9 Because Nitro 4 Tec is controlled by radio it is subject to radio interference from many sources beyond your control Since radio interference can cause momentary loss of control always allow a safety margin in all directions around your model to prevent collisions The engine can be loud If the noise makes you uncomfortable wear ear protection Be considerate of your neighbors by not running your model early in the morning or late in the evening Most importantly use good common sense at all times Your Nitro 4 Tec 3 3 comes with a set of specialty metric tools You ll need to purchase other items available from your hobby dealer to operate and maintain your model 1 5mm L hex wrench 2 0mm L hex wre
52. m the sleeve cleaner Be sure to wear safety glasses and gloves when working with denatured alcohol 7 Connect the EZ Start controller to the model and spin the engine for 10 seconds 1 Remove the glow plug using the included tool or 8mm 5 16 nut driver and verify that the piston Clean and re oil the air filter so it will be ready for use next time See is at the top of its stroke page 22 for air filter maintenance instructions Remove the rag or paper towel and repeat steps 5 7 two more times 2 Turn the Nitro 4 Tec over and locate the flywheel 10 Replace the glow plug reconnect the glow plug power wire and through the cutout in the chassis Insert a flat blade reinstall the air filter screwdriver as shown between the chassis and flywheel Using the chassis for leverage rotate the damage to your engine Clearing a Flooded Engine flywheel counterclockwise by pressing down on and other components of If the engine is primed for too long during startup then it can become the screwdriver The flywheel will turn unsticking your Nitro 4 Tec flooded with fuel When the engine is flooded it will no longer turn due to the piston from the sleeve excess fuel in the combustion chamber preventing upward movement of the piston Use the following procedure to clear a flooded engine Be sure to follow proper maintenance and storage procedures to avoid 3 Put two or three drops of light machine oil into the glow plug hol
53. machined into the bottom of the head Dyno Abbreviation for dynamometer A precise piece of testing equipment that accurately measures engine power and torque output over the engine s entire rpm range EZ Start Traxxas on board electric starting system The system consists of a hand held starter control unit and an on board gearbox with an electric motor to spin the engine Filter foam The oiled foam element inside the air filter housing The filter foam in the TRX 3 3 must be thoroughly cleaned and re oiled after every hour of run time Fit Usually refers to the fit of the piston and sleeve If the fit is tight the piston will feel very tight at top of the sleeve top dead center and the engine will have good sealing and compression If the fit is loose compression will be low and both the piston and sleeve should be replaced Flame out Occurs when the engine stops running at high rpm Usually the fault of an excessively lean fuel mixture or glow plug failure Fuel 10 20 33 The TRX 3 3 must have model engine fuel to run Traxxas Top Fuel is recommended Fuel is sold in quarts and gallons from hobby dealers The 10 20 and 33 labeling refers to the percentage of nitromethane contained in the fuel Fuel mixture The ratio of fuel to air as determined by the needle settings of the carburetor Fuel tubing fuel line The thick silicone tubing that carries fuel from the fuel tank to the carburetor Glow plug Th
54. maintenance 36 Smoke 29 Stall 20 Steering trim 9 Steering wheel 9 Supplies 5 Support 3 Suspension Arm 6 TDC Top Dead Center 20 37 Temperature gauge 31 Throttle arm 18 Throttle neutral adjust 9 Throttle trigger 9 Throttle trim 9 16 Tie Rod Turnbuckle 6 Tires 6 Toe In 34 Tools 5 Transmission 6 Transmitter 9 10 11 14 15 power indicator 9 11 power switch 9 Troubleshooting 38 Turn 23 Wear in 20 Weather conditions 31 Wiring Diagram 9 WOT 20 INDEX NITRO 4 TEC 3 3 41 NOTES 42 e NITRO 4 TEC 3 3 NOTES NITRO 4 TEC 3 3 43 ALL WHEEL DRIVE SUPERCAR ELD 2 f 2 j N ota j MODEL 4809 1100 KLEIN ROAD PLANO TEXAS 75074 1 88 TON 060602
55. mitter batteries are weak discharged or possibly installed incorrectly Replace with new or freshly charged batteries The power indicator light does not indicate the charge level of the RX Power Pack installed in the model 1 Remove the battery compartment door by pressing the tab and lifting the door up 2 Install the batteries in the correct orientation as indicated in the battery compartment 3 Reinstall the battery door and snap it closed Use the Right Batteries Your transmitter uses AA batteries Use new alkaline batteries or rechargeable batteries such as NiCad or NiMH Nickel Metal Hydride batteries in your transmitter Make sure rechargeable batteries are fully charged according to the manufacturer s instructions If vou use rechargeable batteries in vour transmitter be aware that when thev begin to lose their charge they lose power much more quickly than regular alkaline batteries Caution Discontinue running your Nitro 4 Tec at the first sign of weak batteries flashing red light to avoid losing control If the power indicator doesn t light red check the polaritv of the batteries Check rechargeable batteries for a full charge OG NITRO 4 Tec 3 3 11 If you use rechargeable batteries in your receiver be aware that when they begin to lose their charge they lose power much more quickly than regular alkaline batteries Signs of weak receiver batteries include sluggish steer
56. n the switch on The red indicator light on the transmitter should be solid red not flashing Turn on the receiver switch in the model The switch is located on the rear shock tower Position the Nitro 4 Tec so that its front wheels are off the ground Turn the steering wheel on the transmitter back and forth and check for rapid operation of the steering servo Also check that the steering mechanism is not loose or binding If the steering operates slowlv check for weak receiver batteries When looking down at model the front wheels should be pointing straight ahead If the wheels are turned slightly to the left or right slowly adjust the steering trim control on the transmitter until they are pointing straight ahead Operate the throttle trigger on the transmitter and check for rapid operation of the throttle servo When the throttle trigger is pulled back the carburetor should open When the throttle trigger is pushed all the way forward the brake should lock 7 Once adjustments are made turn off the receiver on your Nitro 4 Tec followed by the hand held transmitter Throttle Brake Servo Steering Servo Nitro 4 Tec Servo Operation Before each running session with your Nitro 4 Tec you should range test your radio system to ensure that it operates properly 1 Turn on the radio svstem and check its operation as described in the previous section Using the TQ Radio Svstem Have a friend hold the
57. n the button is depressed If the glow plug LED does not light make sure the blue glow plug wire is tightly connected and is not damaged in any way If the wire is good then replace the glow plug It is normal for glow plugs to require periodic replacement Only use Traxxas heavy duty long glow plugs part 3231 Check to make sure the fuel is getting to the carburetor Remove the fuel line where it connects to the carburetor to see if there is fuel in it If not you may need to prime the engine Reconnect the fuel line and then refer to page 27 for instructions on priming the engine Check your fuel mixture settings It may be necessary to adjust the fuel mixture if the outside temperature or barometric pressure has changed significantly since the last time the engine was run see Fine Tuning the Carburetor on page 31 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 29 The engine could be worn If the fit between the piston and sleeve is loose compression is reduced and the engine will be difficult to start when it is warm and may tend to stall when running and when the throttle is closed suddenly to idle Engine life depends on many factors including fuel type air filter maintenance needle settings and how the engine was used For example if the engine was allowed to ingest dirt
58. nch 10 quart 5010 20 quart 5020 33 quart 5030 10 gallon 5060 20 gallon 5070 33 gallon 5080 Traxxas Top Fuel see page21 After run oil to protect Fuel dispensing bottle the engine from corrosion Part 5001 RX battery power pack Traxxas part 3037 TRX Power Charger Traxxas part 3030X QUIPMENT 2 5mm L hex wrench Hobby knife RX Wiring Harness Traxxas part 3034 Glow plug and wheel nut wrench Foam air filter oil and extra oiled air filter element see page 22 Antenna nut wrench NiCad or NiMH NiCad or NiMH battery charger 7 2V battery pack Traxxas part 3030X shown Small flat blade screwdriver Philips screwdriver for tuning 1 8 inch blade DC car adapter for TRX Power Charger Traxxas part 3032 For more information on radio system batteries see Use the Right Batteries on page 11 6 A peak detecting charger such as the TRX Power Charger part 3030X is recommended for best performance and longest battery life For more information see Use the Right Charger on page 25 Recommended Equipment These items are not required for the operation of your model but are a good idea to include in any R C toolbox Safety glasses Thin hobby quality cyanoacrylate instant tire glue CA glue Side cutters or needle nose pliers e Metric hex driver set NITRO 4 TEC 3 3 0 5 ANATOMY OF YOUR NITRO 4 TEC 3 3 Chassis lower
59. ng a stuck piston Note It is normal for the engine to be extremely tight and hard to turn when the piston reaches the top of the compression stroke Engine extremely sluggish hard to start and will not idle during tank 1 of the break in It is possible that the factory adjusted break in settings on your carburetor are too rich for your geographic location atmospheric conditions or fuel brand Extremes in temperature humidity barometric pressure and altitude can t always be accounted for with a single high speed needle setting The symptoms described above can occur when the air density is very low such as in high mountainous elevations and extremely cold temperatures Under these conditions lean the fuel mixture slightly 1 8 turn to see if there is any improvement in starting and idling Only lean the fuel mixture just until the engine will run and idle reliably and then proceed with the break in The contents of different brands of fuel other than Traxxas Top Fuel in combination with extreme atmospheric conditions can also make the factory preset break in settings too rich and cause the symptoms described above Again try leaning the fuel mixture slightly 1 8 turn to see if there is any improvement in starting and idling Engine spins but will not start TS 5 G G 0 If the engine is spinning but will not start first check to make sure that both the motor and glow plug LEDs on the EZ Start controller light whe
60. nna in the Nitro 4 Tec is in place and has not been cut or damaged Next make sure the batteries are all fully charged Finally if you are still experiencing short range try a different location Sometimes there can be interference from various sources that can cause your radio to malfunction Engine will not spin EZ Start will not turn the engine If neither LED on the controller lights the EZ Start battery could be discharged or improperly connected Inspect and recharge if necessary 38 e NITRO 4 Tec 3 3 TROUBLESHOOTING YOUR NITRO 4 TEC 3 3 O O IC If the glow plug LED lights and the motor LED does not then the EZ Start controller is in protection mode Allow the controller to cool for at least three minutes The circuitry should automatically reset Check to make sure the wires are connected to the EZ Start motor in the Nitro 4 Tec The red wire should connect to the positive motor terminal indicated by a red dot next to the terminal The engine could be flooded If too much fuel accumulates in the combustion chamber at start up the engine will hydraulically lock Follow the procedure on page 37 for clearing a flooded engine Check for binding at the engine flywheel If you are not able to turn the engine by hand the engine could be flooded there could be binding in the clutch system or there could be internal engine damage See page 37 for info on clearing a flooded engine and releasi
61. of the wire into one end of the antenna tube the antenna tube tip crimp nut and sleeve are located in the documents bag Push the wire all the way through the antenna tube 3 Carefully position the wire so it exits through the slot in the molded antenna post and insert the base of the tube into the antenna post 4 Slide the crimp nut over the antenna tube and screw it onto the antenna post Use the supplied tool to tighten the crimp nut on the post just until the antenna tube is securely in place Do not over tighten or crush the antenna wire against the top plate 5 Fold the top of the antenna wire over the top of the antenna tube Slide the antenna sleeve over the tube to retain the antenna wire Now slide the antenna tip onto the top of the antenna tube Never cut or shorten the antenna wire 6 On the transmitter always fully extend the telescoping antenna when running your 4 Tec Make a habit of holding the transmitter so the antenna points straight up THE TRAXXAS TQ RADIO SYSTEM Antenna Tip Antenna Sleeve Antenna Tube Antenna Wrench Antenna Crimp Nut Antenna Post Spray a little window cleaner on the antenna wire to make it easier to push through the antenna tube Don t shorten the length of the antenna wire Its length is tuned to the frequency band cutting it could severely shorten the radio system s range Don t push the transmitter antenna down from the top Pull it down f
62. on Symptoms include the engine being difficult to start when warm stalling when warm and stalling when throttle is suddenly closed to idle Replace the wrist pin and G clip whenever the piston and sleeve are replaced After run Procedure You must perform after run maintenance on your Traxxas engine whenever the model will be stored for longer than a few hours Taking the time to prepare your engine for storage will reward you with longer engine life easier starting and better performance When a nitro engine is shut off some excess unburned fuel remains in the engine The methanol in model engine fuel is hygroscopic which means it easily attracts and absorbs moisture This moisture can cause rust and corrosion on the steel engine parts crankshaft bearings wrist pin and starter shaft if the fuel is not removed from the engine There are after run oil products available from your hobby dealer or you can use WD 40 a common household lubricant To ensure your TRX 3 3 Racing Engine is protected from internal corrosion use the following procedure 1 Whenever possible shut off the engine by pinching the fuel line closed This allows most of the excess fuel to be consumed by the engine Be sure the throttle is in the idle position You may have to pinch the fuel line closed for several seconds before the engine stops 2 Completely empty the fuel tank Use your fuel dispensing bottle to suck out the old fuel Do not mix the old
63. on mode 26 using 26 Fit 19 Flame out 19 Fivwheel 18 Foam Bumper 6 8 Frequency 10 clearing 10 Fuel Top Fuel 5 19 21 37 break in 27 dispensing bottle 5 flow 21 23 handling 21 other fuels 21 unburned 26 36 Fuel intake 18 Fuel line fuel tubing 6 18 19 Fuel mixture 19 23 Fuel tank 6 18 filling 22 fuel tank lid 6 Gear Ratios 35 Glow plug 19 driver 20 glow plug wire 18 Head cylinder head 18 19 Head protector 18 Header 6 18 20 High speed needle 18 20 adjustment 30 Humidity 30 Idle speed screw 18 20 24 adjustment 31 Lean 20 leaning the mixture 20 maximum safe lean setting 30 Low speed needle 18 20 adjustment 30 mAh 10 Maintenance 36 Needle Settings 24 Needle valve 20 Nitromethane Nitro 20 content 20 percentage 21 O ring 20 On Off Switch 6 Pinch test 30 Pipe 6 18 20 hanger 6 Piston 20 maintenance 36 stuck at top dead center 37 Port 20 Pressure line 6 18 Punch 20 Quick Start 7 8 11 12 13 16 17 22 26 27 28 30 33 40 Radio system TQ 9 channel 10 controls 14 crystal 10 range testing 16 rules 15 terminology 10 trim 10 using 16 Range 13 Receiver 6 9 10 15 Rich 20 rpm 20 Safety 4 37 Servo chart 14 Servo reversing switches 9 Servo steering 6 Servo throttle brake 6 Servos centering the 35 Shift Point 33 Shipping 3 Shock Tower 6 Shocks Oil Dampers 6 fine tuning 34 Sleeve 20
64. ons exactly to ensure the best performing longest lasting engine 16 Tune your engine See page 29 Learn how to set the fuel mixture needles for optimum engine performance 17 Drive your Nitro 4 Tec See page 32 Driving tips and adjustments for your Nitro 4 Tec 18 Maintaining your Car See pages 36 37 Follow these critical steps to maintain the performance of your Nitro 4 Tec and keep it in excellent running condition 7 The Quick Start Guide is not intended to replace the full operating instructions available in this manual Please read this entire manual for complete instructions on the proper use and maintenance of your Nitro 4 Tec Look for the Quick Start logo at the bottom of Quick Start pages 05 gt NITRO 4 TEC 3 3 9 7 OG 3 3 8 e NITRO 4 TEC DECORATING INSTALLING YOUR The main decals have already been applied to your Nitro 4 Tec The extra decals provided are die cut for easy removal Use a hobby knife to lift the corner of a decal and remove it from the backing Carefully position the decal over the desired location and press one side on the body Pull the decal tight and use a finger to gradually smooth out any air bubbles as you apply the decal Look at the photos on the box for typical decal placement The body mount parts are located in a separate bag with your instructions The front body mount posts attach to the front bumper with 3x10mm countersunk cap screws Sl
65. ou 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 it s important to read and follow the procedures in this manual Nitro 4 Tec 3 3 contains new technologies in the engine suspension and transmission operation that you may not be familiar with Pay particular attention to the fuel and break in requirements for the engine roe a TI p Carefully read and follow all instructions in this and any accompanying materials to prevent serious damage to your Nitro 4 Tec 3 3 Failure to follow these instructions will be considered abuse and or neglect Nitro 4 Tec 3 3 is very fast and carries our highest skill level rating of 5 Expert For experienced drivers only Prior experience with R C models is required Nitro 4 Tec 3 3 is a high performance model which is NOT intended for use on public roads or in congested areas where its operation may conflict with or disrupt pedestrian or vehicular traffic Read all enclosed information before operating Fully illustrated step by step instructions describe adjustment and required maintenance procedures Nitro 4 Tec 3 3 should not be operated in a crowd indoors or without adequate space and ventilation The vehicle is fully assembled ready to run and requires the following items for operation 12 AA alkaline batteries model car fuel a 7 2 volt rechargeable battery pack and a charger These item
66. paying very close attention to how it responds to changes in fuel mixture more smoke less smoke fast sluggish reliable stalling smooth sound muffled sound etc Once the engine is tuned then observe the temperature The temperature gauge can aid you in tuning by giving you a relative indication of how your adjustments are affecting the engine and to help prevent you from reaching excessive engine temperatures For example as you lean the fuel mixture the engine performance will increase along with the temperature If you continue to lean the fuel mixture and the temperature increases but the engine performance does not change then you have exceeded the maximum safe lean setting Make note of the engine temperature Generally try to keep your engine from exceeding 270 F when measured at the glow plug If necessary increase airflow to the engine by cutting out the windshield In some situations the engine may perform very well with no stalling lagging or hesitation at temperatures above 270 F particularly in very hot climates If richening the fuel mixture to bring the temperature down to 270 F results in poor sluggish performance engine never cleans out then return the engine back to a satisfactory state of tune based on how it sounds and performs always with a visible stream of blue smoke coming from the exhaust If engine temperature is exceeding 270 F with proper cooling and no signs of abnormal running then avoid
67. rature and the air density is lower The chart on page 30 provides general guidelines on how weather conditions affect air density when they move higher or lower than your baseline setting see page 23 for detailed info on how air density affects mixture settings Tuning the Engine by Temperature The following procedures require an optional infrared temperature probe or on board temperature gauge Traxxas on board digital temperature gauge part 4091 Engine temperature can be used as an effective tuning aid when you understand the relationship between engine temperature and ambient temperature The engine operating temperature when tuned for maximum performance will vary according to atmospheric conditions engine load gauge accuracy and many other factors The atmospheric condition that has the most influence on engine temperature is THE TRX 3 3 RACING ENGINE 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 range that indicates the best possible engine tuning There is NO optimal temperature that can be used as a target to deliver the best engine tuning Do not rely on a temp gauge alone to tune your engine Tune the engine by
68. rol unit indicates the condition of the glow plug The Motor LED indicates the status of the EZ Start electric starter motor The cush drive mechanism in the drive unit prevents damage to the gears caused by engine kickback Smart Start protection circuitry prevents damage to the motor by cutting power if the load on the motor or other electronics exceeds safe limits Installing the EZ Start Battery THE TRX 3 3 RACING ENGINE The EZ Start system requires a fully charged 7 2 volt rechargeable NiCad or NiMH battery pack not included Use a charger not included designed for 7 2 volt battery packs Charge the battery according to the charger manufacturer s directions 1 Press the tab in the end of the batterv compartment door to open Plug a fully charged 7 2 volt battery pack into the connector inside Twist the battery two or three times to twirl the battery plug wires This helps hold the wire and battery in place when the battery is installed in the compartment Install the battery into the compartment and press the wires securely into place Snap the battery compartment door back on and lock the end tab Use the Right Charger The most convenient type of charger is an AC peak detecting charger that plugs directly into an AC wall outlet such as the TRX Power Charger part 3030X see www Traxxas com for more info It contains special peak detection circuitry th
69. rom the bottom one segment at a time to prevent binding and kinking the antenna mast OG NITRO 4 TEC 3 3 13 14 e NITRO 4 TEC 3 3 THE TRAXXAS TQ RADIO SYSTEM K IT In addition to the electronic throttle and steering trim controls vour radio svstem features throttle neutral adjustment and servo reversing switches Throttle Neutral Adjustment The throttle neutral adjustment is located on the transmitter face and controls the forward reverse travel of the throttle trigger Change the adjustment bv pressing the button and sliding it to the desired position There are two settings available 50 50 Allows equal travel for both acceleration and braking 70 30 Allows more throttle travel 7090 and less brake travel 3090 50 50 is the required setting for Nitro 4 Tec with the TRX 3 3 Racing Engine u Electronic Throttle Trim The electronic throttle trim located on the face of the transmitter adjusts the neutral center point of the throttle servo when the servo is at rest This control has been preset for you at the factory If necessary adjust the control so that the carburetor is at idle and the brakes are not applied the model will roll freely Do not use the throttle trim to raise or lower the engine idle speed Make the idle speed adjustment on the carburetor Electronic Steering Trim The electronic steering trim located on the face of the transmitter adjusts the ne
70. roper procedure to break in a model engine Only use the Traxxas break in procedure Other break in procedures could result in a weak damaged or otherwise poor performing engine The procedure outlined here was extensively tested and proven to yield better performing engines than other common break in methods Even if you have years of experience using model engines please do not ignore this caution 28 e NITRO 4 Tec 3 3 THE TRX 3 3 RACING ENGINE Drive the model with the body off 2 Driving procedure Gentiv pull the throttle trigger to 1 4 throttle over a 2 second count Then gentiv applv the brake to stop Count the two seconds out while accelerating one thousand one one thousand two and then stop Operate the throttle trigger as smoothly as you can Repeat this starting and stopping procedure until the first tank of fuel is nearlv emptv 3 Look for thick blue smoke exiting the exhaust outlet If there is no smoke richen the high speed needle 1 4 turn by turning the needle counterclockwise 4 When the fuel tank is nearly empty shut off the engine by pinching the fuel line connected to the carburetor use the installed clamp 5 Let the engine cool for 15 minutes Note If at any point the engine cuts out or stalls during gentle acceleration richen the high speed needle 1 4 turn by turning the needle counterclockwise From tank 2 forward Nitro 4 Tec should
71. rt 5263 or a high quality special purpose foam filter oil like Use only the supplied filter You will not improve engine performance by what is used for off road motorcycle and ATV engines This type of filter switching to an aftermarket filter and you may risk engine damage due to oil is available at motorcycle pro shops Apply 30 drops of the Traxxas poor filtration filter oil evenly to the top bottom and sides of the filter element 30 total drops divided among the 3 surfaces Squeeze the filter element repeatedly to help spread the oil throughout The filter element should be evenly colored by the oil Even color indicates that the oil is distributed evenly Do not squeeze out excess oil Note Do not use the air filter oil for anything other than the air filter It is not meant to be a lubricant The TRX 3 3 Racing Engine air filter assembly consists of 3 pieces 1 A rubber filter base 2 A plastic housing consisting of a permanently assembled mesh cap and body 3 An oiled foam element 6 Reassemble the filter and install it on the engine making sure the rubber filter neck fits securely on the carburetor with no gaps or air leaks n This includes the break in time Clean your air filter after break in Dust which is often too fine to see and dirt constantly move through the filter anytime the engine is running Even if you can t see dirt on the filter it is present inside the foam after any amount of run time If you exceed t
72. running the engine at its maximum lean setting Watch closely for any signs of overheating Richen the fuel mixture slightly to provide a safety margin of additional cooling lubrication Symptoms of overheating include Steam or smoke coming from the engine not exhaust Hesitation or stalling during acceleration Popping or clattering sound when decelerating detonation Fluctuating idle speed NITRO 4 Tec 3 3 31 05 gt 32 e NITRO 4 TEC 3 3 DRIVING YOUR NITRO 4 TEC 3 3 Your TRX 3 3 Racing Engine is broken in the fuel mixture is balanced and the idle is set now it s time to have some fun This section contains instructions on making adjustments to your Nitro 4 Tec Before you go on here are some important precautions to keep in mind Don t run your Nitro 4 Tec in water mud snow or wet grass Water and mud are easily drawn through the air filter and will severely damage the engine Small amounts of moisture can cause electronics to fail and loss of control over your Nitro 4 Tec The TRX 3 3 Racing Engine is extremely powerful Remember to apply the throttle gradually to prevent spin outs or loss of control Q Don t hold the Nitro 4 Tec off the ground and rev the engine excessively with no load on the engine This practice could result in internal engine damage O Avoid excessive high speed running for extended periods of time or over long distances This could cause the engine to b
73. s against the spur gears and tighten the screws on the bottom of the chassis Remove the paper and the gear mesh is now correctly adjusted Centering the Servos Whenever your radio system has been removed for service or cleaning the servos must be re centered prior to installing the radio system in the model If the radio system is installed in the car disconnect the servo horns from the servos Connect the steering servo to channel 1 on your receiver and the throttle servo to channel 2 The white wire on each servo cable is positioned towards the crystal Connect the red and black cable from the battery holder to the batt terminal on the receiver The red wire is positive and the black wire is negative Place fresh AA batteries in the transmitter and turn the power switch on Slide the throttle and steering trim adjustments to to the center position Now install fresh AA batteries into the battery holder and turn the power switch to the on position The servos will automatically jump to their center positions Turn off the battery holder switch followed by the transmitter The servos are now ready to be installed Be careful not to move the servo shaft when reinstalling the servo horns Nitro 4 Tec 3 3 35 If the engine is worn or damaged enough to require replacing the piston sleeve or connecting rod consider exchanging your old engine for a brand new engine under the terms of the Traxxas Lifetime Engine
74. s are available from your hobby dealer In an effort to continually upgrade our products Traxxas reserves the right to make improvements and modifications to this model which may not be reflected in the photographs and specifications printed in this manual Before running your Nitro 4 Tec 3 3 look over this entire manual and examine the car carefully If for some reason you decide Nitro 4 Tec 3 3 is not what you wanted then do not continue any further Your hobby dealer absolutely cannot accept a Nitro 4 Tec 3 3 for return or exchange after it has been run Throughout this manual you ll notice warnings and helpful hints identified by the icons below Be sure to read them An important warning about personal safety or avoiding damage to your Nitro 4 Tec 3 3 and related components Special advice from Traxxas to make things easier and more fun C Refers you to a page with a related topic If you have any questions about your Nitro 4 Tec 3 3 or its operation call the Traxxas Technical Support line toll free at 1 888 TRAXXAS 1 888 872 9927 Technical support is available Monday through Friday from 8 30am to 9 00pm central time Technical assistance is also available at www Traxxas com You may also e mail customer support with your question at support Traxxas com Join thousands of registered members in our online community at Traxxas com Traxxas offers a full service on site repair facility to handle any of your Traxxas servi
75. seconds prime the engine by briefly one or two seconds covering the exhaust outlet with your finger until the fuel is just visible in the carburetor fuel line Watch carefully If the engine is primed too long it will flood with fuel and stop turning Higher nitro requires a richer fuel mixture When running 33 fuel richen your high speed needle 3 4 turn if previously running 20 nitro and then re tune the engine for maximum performance See page 21 for more information OG NITRO 4 Tec 3 3 7 5 Once fuel reaches the carburetor the engine should quickly start and idle 6 Disconnect the EZ Start controller from the model 7 Proceed with the engine break in 8 Do not rev your engine with no load wheels off the ground If your engine doesn t start go online to www traxxas com support If your factory fuel mixture settings have been altered refer to page 24 If you still have problems contact Traxxas Customer Support at 1 888 TRAXXAS or support traxxas com High Altitude Operation If you live in a high altitude region 5000 or more feet above sea level the lower air density may require you to lean your high speed fuel mixture slightly from the factory break in settings Try this if you are experiencing difficult starting or extremely sluggish engine performance at high altitude 2 As you gain experience in the hobby you may discover that many people have differing opinions on what is the p
76. sted areas where its operation may conflict with or disrupt pedestrian or vehicular traffic Read all enclosed information before operating Fully illustrated step by step instructions describe adjustment and required maintenance procedures Nitro 4 Tec 3 3 should not be operated in a crowd indoors or without adequate space and ventilation The vehicle is fully assembled ready to run and requires the following items for operation 12 AA alkaline batteries model car fuel a 7 2 volt rechargeable battery pack and a charger These items are available from your hobby dealer In an effort to continually upgrade our products Traxxas reserves the right to make improvements and modifications to this model which may not be reflected in the photographs and specifications printed in this manual Before running your Nitro 4 Tec 3 3 look over this entire manual and examine the car carefully If for some reason you decide Nitro 4 Tec 3 3 is not what you wanted then do not continue any further Your hobby dealer absolutely cannot accept a Nitro 4 Tec 3 3 for return or exchange after it has been run Once you become familiar with driving your Nitro 4 Tec 3 3 you may wish to make adjustments for better driving performance Adjusting the Shift Point The Nitro 4 Tec comes equipped with a two speed transmission When the shift point on this transmission is adjusted correctly it will maximize acceleration improve drivability and minimize lap times Use
77. u to not take chances with your engine investment and use Top Fuel for consistent performance and long engine life What about Other Fuels Can other brands of fuel be used besides Top Fuel There are other fuels that can provide satisfactory performance however there could be long term costs in the form of decreased engine performance loss of tuning ease and shorter engine life Only use fuels that contain both castor and synthetic oil Everyone has an opinion or a claim to make about fuel The engineering team at Traxxas has spent years developing TRX Racing Engines No one knows more about the specific fuel requirements of Traxxas engines than Traxxas engineers We strongly urge you not to take chances with your engine investment and use the Traxxas fuel made for the TRX 3 3 Racing Engine Handling the Fuel Follow all directions and warnings on the fuel can Keep the fuel tightly capped at all times Some components in the fuel can evaporate very quickly and upset the balance of the fuel Do not store unused fuel in the fuel dispenser Immediately return fresh unused fuel back into the fuel can Do not mix old and new fuel Never mix different fuel brands together Store the fuel in a cool dry location away from any source of heat ignition or combustion Read and follow the safety precautions on page 4 in this manual KA NITRO 4 TEC 3 3 21 THE TRX 3 3 RACING ENGINE Filling the Fue
78. uild up enough speed to exceed maximum safe RPM limits Don t drive your Nitro 4 Tec with drive train damage of any kind The engine could be damaged due to overloads on the engine caused by drivetrain friction or over revving caused by loose or missing parts Don t tow anything with your Nitro 4 Tec The engine is cooled by airflow created by speed Towing creates a high load on the engine and at the same time limits cooling of the engine due to low vehicle speed If your Nitro 4 Tec gets stuck stop driving immediately Move the vehicle and then continue driving Never turn off the radio system while the engine is running The car could run out of control Not a Toy For Expert Drivers Only This product is capable of extreme speed and acceleration It carries our highest skill level rating 5 and 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 Nitro 4 Tec 3 3 is very fast and carries our highest skill level rating of 5 Expert For experienced drivers only Prior experience with R C models is required Nitro 4 Tec 3 3 is a high performance model which is NOT intended for use on public roads or in conge
79. uld light green while starting If either LED fails to light while starting there is a fault indicated with that function Ifthe Glow Plug LED fails to light the glow plug may be bad or the glow plug wire may be damaged or disconnected Ifthe Motor LED fails to light and the starter fails to operate then the EZ Start is in protection mode Protection Mode The EZ Start uses Smart Start technology to monitor the condition of the system and detect failures The controller monitors the load being placed on the EZ Start motor If the load becomes excessive the system shuts off power to the motor to prevent costly damage to the motor and the controller This may occur for example if the engine floods with fuel during starting The starter spins at first but when excessive fuel in the combustion chamber begins to lock up the engine the starter motor slows under the heavier load This causes the protection circuit to shut off the power to the motor Allow at least 3 minutes for the starter motor to cool and the circuit to automatically reset before continuing Use the time to find and eliminate the condition that caused the excessive load on the starter motor Use a Strong Starter Battery A weak starter battery or one that has not been fully charged may not deliver enough power to crank the engine over at the appropriate rpm to keep the piston from sticking at top dead center TDC A new engine will typically have a
80. unter clockwise If the car has poor acceleration but very high top speed the transmission is shifting into second gear almost instantly The shift point needs to be raised by turning the adjustment screw clockwise NITRO 4 Tec 3 3 33 At no time should the body of the car strike the ground or interfere with the suspension or tires Either situation will cause extremely unpredictable handling 34 e NITRO 4 Tec 3 3 ADJUSTING YOUR NITRO 4 TEC 3 3 Toe In Set the steering trim on your transmitter to neutral Now adjust your tie rods so that both wheels are pointing straight ahead and are parallel to each other 0 degrees toe in This will ensure the same amount of steering in both directions If you run out of adjustment then the steering servo will have to be re centered see centering your servos on page 35 Fine Tuning the Shocks The four shocks on your Nitro 4 Tec have the f most influence on its handling Whenever vou i rebuild your shocks or make any changes to the pistons springs or oil always do it carefully and in pairs front or rear Piston head selection depends on the range of oil viscosities that you have available For example using a one hole piston with a lightweight oil will give you the same dampening as a two hole piston with heavier oil We recommend using the one hole pistons with a range of oil viscosities from 10W to 50W available from your hobby shop The thinner viscosity oils
81. ut Cleaning out is a condition that occurs when the engine is accelerating and the fuel mixture becomes sufficiently lean to allow the engine to continue into its upper rpm power band It is usually characterized by a noticeable decrease in blue exhaust smoke and a dramatic increase in engine speed Combustion chamber The combustion chamber is machined into the bottom of the cylinder head This is where the glow plug ignites the fuel The shape of the combustion chamber is designed to promote more efficient burning of the fuel Connecting rod The connecting rod transfers the piston motion to the crankshaft The TRX 3 3 Racing Engine uses a knife edged connecting rod The aerodynamic sharpened edges allow it to slice through the pressurized air fuel mixture inside the crankcase THE TRX 3 3 RACING ENGINE Crankcase 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 dirt and debris for maximum cooling efficiency Cylinder head head The finned aluminum part on top of the engine that is responsible for dissipating most of the engine s heat The combustion chamber is
82. ut your Nitro 4 Tec 3 3 Most questions arise from simple user errors or minor adjustments that are easy to correct If you can t find a solution for your Nitro 4 Tec here then visit our Web site at www Traxxas com and click on the Customer Support menu There you will find a much more extensive and detailed online troubleshooting area In addition you may call Traxxas Customer Service at 1 888 TRAXXAS outside the US call 972 265 8000 Radio system does not work properly If the power light on the transmitter does not come on check for proper battery installation and that the batteries are new and or fully charged If the power light is blinking then the transmitter batteries are weak and should be replaced See page 11 for more details Ifthe transmitter light is on but the radio is still not responding check for proper installation of the receiver batteries and that the batteries are new and or fully charged Check to make sure the on off switch on the model is in the on position Finally if there is still no response check the red and black wires that connect the battery pack to the batt terminal on the receiver you will have to remove the receiver cover Make sure the wires are not pinched or damaged and that the plug is secure in the receiver See page 13 for more details Short radio range Ifthe radio range appears short then first check to make sure the transmitter antenna is fully extended and that the ante
83. utral center point of the steering servos when the servos are at rest Adjust this control to make the model drive straight with no steering input at the wheel Servo Reversing Switches The servo reversing switches are located on the front of the transmitter next to the on off switch Moving a switch reverses the direction of the corresponding servo Each switch corresponds to a channel as shown below For example if you turn the steering wheel to the right and your front wheels turn left you would move the channel 1 switch to correct the servo direction It may be necessary to adjust the corresponding trim control after moving a switch The default position for the servo reversing switches is shown CHANNEL SERVO DEFAULT SETTING 1 STEERING BEET 2 THROTTLE amp BRAKING RIGHT EN 5 O Each time you prepare to run your Nitro 4 Tec Channel 1 you must clear your frequency to be sure no Brown one else in the area is using the same channel Channel 2 as you Red Channel 3 There are six possible channels numbered 1 Orange through 6 Each is represented by a color Look Channel 4 at the crystal plugged into the back of your transmitter to determine which channel your Channel 3 car is assigned to EZ channel 6 ue Always turn your TQ transmitter on first and off last This procedure will help to prevent your Nitro 4 Tec from receiving stray signals from another transmitter or other source and running out of control
84. ven and consistent tire wear as well as predictable and balanced handling Camber The camber angle of both the front and rear wheels can be adjusted with the camber rods upper turnbuckles Use a square or right angle triangle to set the camber accurately Adjust the front wheels to 0 degrees of camber wheel is perpendicular to the ground In the rear adjust the wheels to 1 to 2 degrees of negative camber These adjustments should be set with the car positioned at its normal ride height The following information gives recommended stock alignment settings for the Nitro 4 Tec with stock tires and inserts Front Camber Rear Camber Front Camber Degrees 0 Rear Camber Degrees 1 0 Front Caster Degrees 12 0 Front Toe In Degrees 0 0 This setting is achieved by having the 1mm caster spacer in the front and the 2mm caster spacer in the rear where the upper suspension arm attaches to the upper suspension arm mount It is important that your engine is properly tuned and has reached full operating temperature before making shift point adjustments Stop the engine before making adjustments The transmission may not shift if the adjustment screw is turned too far in locked in first gear or too far out locked in second gear If the car has quick acceleration and does not appear to shift the transmission is never reaching the shift point The shift point needs to be lowered by turning the adjustment screw co
85. will need plenty of room for the car to run in Apply all throttle and braking actions gently Abrupt acceleration or braking could cause the engine to stall unnecessarily Special break in fuels are not recommended Use the same fuel you plan to use everyday If possible avoid breaking in the engine on extremely hot or cold days see page 29 Pay careful attention to the fuel level Do not allow the fuel tank to run completely empty An extremely low fuel level causes the mixture to run too lean This could result in a burned glow plug or extremely high engine temperatures Do not attempt to break in the TRX 3 3 Racing Engine by idling it on a stand This will produce poor results THE TRX 3 3 RACING ENGINE Keep extra Traxxas glow plugs handy The break in process can cause P 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 See Important Points to Remember on page 4 for other precautions e Starting Vour TRX 3 3 Racing Engine for the First Time Before vou start vour 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 tank break in instructions in the next section and make sure you have read and understood them before you run your engine O Never run your Nitro 4 Tec indoors Since the TRX
86. ycles 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 allow higher capacity than NiCad batteries They can last up to 500 charge cycles A peak charger designed for NiMH batteries is required for optimal performance Receiver The radio unit inside your Nitro 4 Tec that receives signals from the transmitter and relays them to the servos Servos Small motor units in your Nitro 4 Tec that operate the throttle and steering mechanisms Two channel radio system The TQ radio system consisting of the receiver the transmitter and the servos The system uses two channels one to operate the throttle and one to operate the steering Transmitter The hand held radio unit that sends throttle and steering instructions to your Nitro 4 Tec Trim The fine tuning adjustment of the neutral position of the servos made by turning the throttle and steering trim knobs on the face of the transmitter THE TRAXXAS TQ RADIO SYSTEM Your TQ transmitter uses 8 AA batteries The battery compartment is located in the base of the transmitter 4 Turn on the transmitter and check the power indicator for a Press in tab solid red light If the power indicator light flashes then the trans

Emerson SiteLink-4 Network Router User Manual

Contents

Download Pdf Manuals

Related Search

Related Contents