Traxxas TQ-3 User's Manual
Contents
1. 2 Set the TQ 3 Transmitter to its factory default shift settings Set the THROTTLE NEUTRAL switch to the 50 50 setting Set the THROTTLE TRIM to the center 0 setting then adjust the THROTTLE TRIM until the carburetor closes Set the CHANNEL 2 SERVO REVERSING SWITCH to the right position Set the CHANNEL 3 SERVO REVERSING SWITCH to the right position DO NOT change the position of any of the servo reversing switches after programming the OptiDrive If settings were changed after programming the OptiDrive it will have to be reprogrammed 3 With the throttle at neutral press and hold the SET button until the Function LED flashes green twice and then release the button immediately You are now in programming mode 4 Pull the transmitter throttle trigger to the full throttle position Hold it there until the Function LED flashes green three times Note The throttle servo will not move during programming even though it is connected to the controller 5 Release the transmitter throttle trigger allowing it to return to neutral The Function LED will turn solid green indicating that the shifting servo is OK to shift and the programming has been completed The controller is now programmed and ready to go If the transmitter throttle settings are changed it will be necessary to complete the programming sequence again If the SET button is released before the Function LED flashes green twice in step 3 the OptiDrive will return to2. 2 Pull the wire straight with your fingers and then insert the end of the wire into one end of the antenna tube Push the wire all the way through the antenna tube 3 Insert the base of the tube into the molded post on the side of the radio box 4 Place the antenna tip over the top of the tube to secure the antenna wire 5 On the transmitter always fully extend the telescoping antenna when running your Revo Make a habit of holding the transmitter so that the antenna points straight up Revo 3 3 13 TRX Charger Specifications Input voltage 10 6 16v min max Fast charge current 750 1000mA min max Slow trickle charge current 22 55mA min max Delta Peak 10mv Maximum charge time 90 minutes The Traxxas TQ 3 Radio System 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 from the bottom one segment at a time to prevent binding and kinking the antenna mast Antenna Tip Antenna Tube Front of Truck 14 Revo 3 3 Steering T U R N L E F T T U R N R I G H T Brake Neutral Accelerate CH 3 CH 2 CH 1 Shift Reverse Shift Forward TQ 3 Radio Sys
3. 8 x 1 wood screws The TRX Power Charger can be powered by our optional DC car adapter sold separately It 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 closely Battery Care Some precautions should be taken to maintain the performance of the rechargeable NiMH receiver pack in your model Improper use of the battery pack could result in personal injury or damage to your truck Only use approved chargers for NiMH battery packs such as the Traxxas TRX Power Charger Do not exceed the maximum charge rate of 1 amp Do not short circuit the battery pack This may cause burns and severe damage to the battery pack Do not burn or puncture the batteries Toxic materials could be released If eye or skin contact occurs flush with water Store the battery pack in a dry location away from heat sources and direct sunlight Nickel Metal Hydride batteries must be recycled or disposed of properly Do not completely discharge the RX Power Pack or you could damage it Do not use dischargers on the pack Store the battery with at least 25 charge Stop running and recharge at the first indication of reduced voltage After connecting a fully drained battery to the charger it may take up to 15 seconds for the charger to sense
4. 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 cycles Good charging procedures are required to reduce the possibility of developing a memory effect and shortened run times NiMH Abbreviation for nickel metal hydride Rechargeable NiMH batteries offer high current handling and much greater resistance to the memory effect NiMH batteries generally 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 OptiDrive ESM Electronic Shift Module The onboard electronic controller that monitors vehicle speed and throttle position in order to control the action of the shifting servo Also includes low battery indicator for the onboard receiver pack RX Power Pack Receiver The radio unit inside your Revo that receives signals from the transmitter and relays them to the servos RX Pack RX is a common abbreviation for the radio receiver and items associated with it RX Pack denotes the optional rechargeable battery pack used to power the radio system in the model It is available as Traxxas part number 3037 Servos Small motor units in your Revo that operate the throttle and steering mechanisms Three channel radio system The TQ 3 radio system consisting of the receiver the transmitter and the
5. Sensor Normal operation as vehicle moves Indicates signal pulse from sensor Depending on the rotor position solid blue or off when vehicle is at rest OptiDrive Operation 16 Revo 3 3 TQ 3 Radio System Rules Each time you prepare to run your Revo you must clear your frequency to be sure no one else in the area is using the same channel as you There are six possible channels numbered 1 through 6 Each is represented by a color Look at the crystal plugged into the back of your transmitter to determine which channel your truck is assigned to Always turn your TQ 3 transmitter on first and off last This procedure will help to prevent your Revo from receiving stray signals from another transmitter or other source and running out of control 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 transmitter and make sure the on board 5 cell NiMH battery pack is fully charged The function light on the OptiDrive will flash red if the 5 cell battery pack requires charging 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 Revo Channel 1 Brown Channel 2 Red Channel
6. the model responds correctly 5 Do not attempt to operate the model if there is any problem with the radio system or any external interference with your radio signal at your location Revo 3 3 17 The Traxxas TQ 3 Radio System When the engine is running don t use the throttle trim on the transmitter to adjust the engine idle speed Instead use the idle speed adjustment on the carburetor Don t attempt to operate your Revo if there are any problems with your radio system or radio interference at your location
7. 3 Orange Channel 4 Yellow Channel 5 Green Channel 6 Blue CH 3 CH 2 CH 1 Always turn your transmitter on first Always turn your receiver on second Then start your engine 1 2 3 Remember always turn the TQ 3 transmitter on first and off last to avoid damage to your Revo Never turn the radio off while the engine is running The Traxxas TQ 3 Radio System Using the TQ 3 Radio System The TQ 3 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 Fully extend the chrome antenna mast on the transmitter and turn the switch on The red indicator light on the transmitter should be solid red not flashing 2 Turn on the receiver switch in the model The switch is located in the top of the radio compartment The function light on the OptiDrive ESM should be green A red flashing LED indicates low voltage in the RX Power Pack The sensor LED is intermittent depending on the rotor position 3 Position Revo so that its front wheels are off the ground 4 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 slowly then check the receiver pack to make sure it is fully charged 5 When looking down at model the front wheels should be pointing straight ahead If the wh
8. charging jack so you do not have to remove the battery pack from the model The long charger cord allows easy handling of the truck while the battery is charging 1 The TRX Power Charger can operate on either AC or DC power An AC power supply is supplied with the charger Plug the end of the AC power supply into the back of the charger 2 Plug the AC power supply into any 110 volt U S models wall outlet The charger light should glow steady green no battery connected 3 Plug the charger output cord into the charging jack located under the right front of the truck The charging jack is protected by a rubber plug 4 The green light on the charger should begin to flash quickly indicating that fast charging is in progress 5 When the light turns solid green not flashing the battery pack is fully charged and ready for use 6 Put the rubber plug back over the charging jack on the truck After fast charging has completed the TRX Power Charger continues to charge in trickle slow charge mode It will continue until the battery is disconnected The TRX Power Charger will automatically shut off after 90 minutes of fast charging time When the charger is not in use wind the charging cord around the cord holder To secure the cord insert the end of it into the retaining slot on either end of the cord holder The TRX Power Charger is designed to be conveniently mounted to a wall or other vertical surface using the supplied
9. the normal operation mode If you experience any problems during programming turn the receiver off then on again and repeat the programming steps For instructions on how to use the OptiDrive with aftermarket radio systems or to access advanced programming options visit our website www Traxxas com CH 3 CH 2 CH 1 Channel Servo 1 Steering 2 Throttle and braking 3 Shifting The Traxxas TQ 3 Radio System TQ 3 Channel to Servo Chart Large adjustments to the throttle trim and or throttle linkage may require re setting the OptiDrive to maintain proper shifting action For transmission durability the OptiDrive ESM limits the model s reverse speed to about 70 of full throttle If settings are changed and you notice a decrease in forward top speed you could have the OptiDrive system reversed Return the TQ 3 servo reversing switches for channels two and three back to their default settings and re program the OptiDrive Module For programming with aftermarket radio systems please see our website Green Function Shift allowed Red flashing Function Low battery see pg 12 Red Sensor a Sensor throttle or shift circuit is broken Possible disconnected or broken sensor throttle or shift wires Possible damaged sensor b Receiver has lost signal from the transmitter the OptiDrive has entered fail safe throttle and shift servos become unresponsive Blue flashing
10. CH 3 CH 2 CH 1 Revo 3 3 9 The Traxxas TQ 3 Radio System Your Revo is equipped with the TQ 3 radio system The TQ 3 is a 3 channel system that provides up to a quarter mile range and control for up to three servo outputs Revo is equipped with two high torque steering servos connected via a Y plug adapter one input two equal outputs The TQ 3 works in conjunction with the OptiDrive Electronic Shift Module to monitor and control the input and output signals for the throttle and shifting servos channels The OptiDrive monitors the voltage of the on board RX Power Pack The Function LED will flash red if the battery voltage is too low Antenna Throttle Neutral Adjust Steering Wheel Throttle Trim Steering Trim Reverse Shift Forward Shift Power Switch Power Indicator Battery Compartment Servo Reversing Switch Throttle Trigger Revo Wiring Diagram Antenna On Off Switch Receiver RX Power Pack 5 cell NiMH Battery Steering Servos Throttle Servo Shifting Servo micro servo The OptiDrive ESM is designed to adapt and work with aftermarket three channel radio systems see page 15 OptiDrive ESM Electronic Shift Module Battery Channel 1 Charging Jack to charger Channel 2 Channel 3 TQ 3 Transmitter To Transmission OptiDrive sensor 10 Revo 3 3 Radio System Terminology Please take a moment to familiarize yourself with these radio system terms They wil
11. Revo 3 3 15 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 Programming the OptiDrive ESM The OptiDrive ESM electronically monitors vehicle speed and controls forward and reverse shifting Controlling the shift action electronically rather than by mechanical systems reduces the number of components in the transmission The transmission weighs less there is lower rotational mass for quicker acceleration and constant drive engagement for smooth power delivery The OptiDrive module prevents the transmission from changing directions while the truck is in motion The truck must be completely stopped to change directions regardless of the position of the shift selector switch on the transmitter The OptiDrive module is preset at the factory If the transmitter throttle trim adjustment is changed then the OptiDrive module will need to be re programmed 1 The engine must be shut off The radio system must be on receiver and transmitter
12. ctly 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 Revo 3 3 11 The Traxxas TQ 3 Radio System CH 3 CH 2 CH 1 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 you use rechargeable batteries in your transmitter be aware that when they begin to lose their charge they lose power much more quickly than regular alkaline batteries Caution Discontinue running your Revo at the first sign of weak batteries flashing red light to avoid losing control If the power indicator doesn t light red check the polarity of the batteries Check rechargeable batteries for a full charge Charging the Receiver Batteries To power the radio system in the truck your Revo is equipped with the RX Power Pack a rechargeable 5 cell nickel metal hydride NiMH battery pack The RX Power Pack must be fully charged before running the truck The supplied TRX Power Charger is a peak detecting unit that will charge the supplied RX Power Pack in about one hour The peak detection circuitry automatically shuts off the charger when the maximum charge has been achieved Revo has a built in
13. eels are turned slightly to the left or right slowly adjust the steering trim control on the transmitter until they are pointing straight ahead 6 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 slide moves out When the throttle trigger is pushed all the way forward the brake should lock 7 Operate the shift button on the transmitter and check for rapid operation of the shifting servo Push the shift button down for forward The servo will operate the spring loaded shift mechanism and you will hear the transmission click into forward Push the shift button up for reverse and you will again hear the transmission click and shift into gear 8 Once adjustments are made turn off the receiver on your Revo followed by the hand held transmitter Range Testing the TQ 3 Radio System Before each running session with your Revo you should range test your radio system to ensure that it operates properly 1 Turn on the radio system and check its operation as described in the previous section Using the TQ 3 Radio System 2 Have a friend hold the model with the engine off 3 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 4 Operate the controls on the transmitter once again to be sure that
14. l be used throughout this manual 5 Cell Pack Another term for RX Pack or rechargeable receiver pack The RX pack is made up of five rechargeable NiMH battery cells and is used in place of the 4AA batteries in the model 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 to by its flag color and channel number as shown below Clearing your frequency A routine verbal check to make sure nobody else in your area is operating on the same channel Always clear your frequency 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 Revo 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
15. servos The system uses three channels one to operate the throttle one to shift the transmission and one to operate the steering Transmitter The hand held radio unit that sends throttle and steering instructions to your Revo 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 Y Adapter Servo cable adapter that takes one input signal and directs it to two equal output signals Used to connect dual steering servos to the channel one receiver output The Traxxas TQ 3 Radio System Channel Frequency Band Flag Color Traxxas Part No 1 26 995 Brown 2031 2 27 045 Red 2032 3 27 095 Orange 2033 4 27 145 Yellow 2034 5 27 195 Green 2035 6 27 255 Blue 2036 Learn terms related to the TRX 3 3 Racing Engine beginning on page 20 Installing Transmitter Batteries Your TQ 3 transmitter uses 8 AA batteries The battery compartment is located in the base of the transmitter 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 4 Turn on the transmitter and check the power indicator for a solid red light If the power indicator light flashes then the transmitter batteries are weak discharged or possibly installed incorre
16. tem Controls The Traxxas TQ 3 Radio System TQ 3 Radio System Adjustments In addition to the electronic throttle and steering trim controls your radio system 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 by 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 70 and less brake travel 30 50 50 is the required setting for Revo with the TRX 3 3 Racing Engine 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 neutral 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
17. the battery and begin to charge To start charging immediately plug the battery pack into the charger and then plug the charger into the wall socket 12 Revo 3 3 The Traxxas TQ 3 Radio System With optional DC car adapter Part 3032 To prevent losing control of your model it is important to stop at the first sign of weak receiver battery Visible warning signals include sluggish steering response and shortened radio range In addition the OptiDrive is equipped with a low voltage indicator and a failsafe circuit When the voltage of the receiver battery drops below 4 3 volts the Function LED on the OptiDrive will flash red If the voltage drops below 4 3 volts for more than 2 seconds the OptiDrive ignores throttle and shift signals and applies 25 brakes failsafe mode Steering will still be operational and the Function LED on the OptiDrive will flash red The OptiDrive will stay in failsafe mode until the power is turned off or the receiver battery voltage rises above 4 3 volts for more than 2 seconds Anytime the Function LED flashes red it is time to stop and recharge your battery pack Do not try to continue running your model with weak receiver batteries on board Setting up the Antenna 1 Locate the black antenna wire that exits the receiver cover The receiver cover is mounted on the top of the chassis near the front The antenna wire exits the cover just ahead of the fuel tank
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