Traxxas T-Maxx 4910 Owner's Manual
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Traxxas T-Maxx 4910 Owner's Manual

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Summary of Contents for Traxxas T-Maxx 4910

  • Page 1 MODEL 4910 owner s manual ’...
  • Page 2 Adjustments way. Refer to the next page to find out how to Thank you again for going with Traxxas. We work hard every day contact us and what your support options are. to assure you the highest level of customer satisfaction possible.
  • Page 3 Warnings, helpful hints, & cross-references Internet Throughout this manual, you’ll notice warnings and helpful hints Traxxas offers a full-service, on-site repair facility to handle any of www.Traxxas.com identified by the icons below. Be sure to read them! your Traxxas service needs. Maintenance, replacement parts, and E-mail: support@Traxxas.com...
  • Page 4 Bold SAFETY PRECAUTIONS All of us at Traxxas want you to safely enjoy your new T-Maxx. Operate Because T-Maxx is controlled by radio, it is subject to radio interference your T-Maxx sensibly and with care, and it will be exciting, safe, and from many sources beyond your control.
  • Page 5 10% quart - #5010 20% quart - #5020 33% quart - #5030 10% gallon - #5060 20% gallon - #5070 33% gallon - #5080 Traxxas Top Fuel After-run oil to protect Small flat-blade screwdriver ™ 12AA alkaline batteries see page 20...
  • Page 6 ANATOMY OF THE T-MAXX Shift Rod Steering Servo Fuel Tank On/Off Switch Shifting Servo Battery Box Fuel Tank Lid Slipper Clutch Suspension Arm Spur Gear (upper) Fuel Line Two Speed Adjustment Throttle/Brake Servo Access Plug EZ-Start Motor Shock Tower Pressure Line Bumper (front) EZ-Start Plug Skid Plate (front)
  • Page 7 QUICK START: GETTING UP TO SPEED The following guide is an overview of the procedures for getting your T-Maxx running, from opening the box to breaking in and tuning 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. The Quick Start Guide is not intended to replace the 1.
  • Page 8 THE TRAXXAS TQ-3 RADIO SYSTEM T-MAXX WIRING DIAGRAM Your T-Maxx (model 4910) is equipped with the TQ-3 Radio System. The TQ-3 is a 3-channel system that provides high-power output up Applying The Decals to a quarter mile and control for up to three servos.
  • Page 9 Frequency band - The radio frequency used by the transmitter to send Trim - The fine-tuning adjustment of the neutral position of the servos, signals to your T-Maxx. All Traxxas RTR models operate on a 27 MHz made by turning the throttle and steering trim knobs on the face of frequency band.

  • Page 10: Installing Transmitter Batteries

    THE TRAXXAS TQ-3 RADIO SYSTEM INSTALLING TRANSMITTER BATTERIES Your TQ-3 transmitter uses 8 AA batteries. The battery compartment is Use the Right Batteries located in the base of the transmitter. Your transmitter uses AA batteries. Use new alkaline batteries, or rechargeable...
  • Page 11 7.2V EZ-Start batteries. The TRX Power Charger can operate on than regular alkaline polarity by comparing either AC or DC power. A special wiring harness for T-Maxx (Traxxas part batteries. Signs of weak against the diagrams in the #3034) that includes a handy external charging jack is required.
  • Page 12 THE TRAXXAS TQ-3 RADIO SYSTEM SETTING UP THE ANTENNA post just until the antenna tube is securely in 1. Locate the black antenna wire that exits the top Spray a little window cleaner place. Do not over tighten or crush the antenna Antenna Tip of the receiver box.
  • Page 13 THE TRAXXAS TQ-3 RADIO SYSTEM Electronic Steering Trim TQ-3 RADIO SYSTEM ADjUSTMENTS The electronic steering trim located on the face of the transmitter In addition to the electronic throttle and steering trim controls, adjusts the neutral (center) point of the steering servos when the servos your radio system features throttle neutral adjustment and servo are at rest.
  • Page 14 THE TRAXXAS TQ-3 RADIO SYSTEM TQ-3 RADIO SYSTEM RULES Always have the transmitter and receiver turned on before you Channel 1 start the engine. Never turn the radio system off while the engine is Each time you prepare to run your T-Maxx,...
  • Page 15 THE TRAXXAS TQ-3 RADIO SYSTEM USING THE TQ-3 RADIO SYSTEM 7. Operate the shift button on the transmitter and check for rapid The TQ-3 Radio System was pre-adjusted at the factory. The adjustment When the engine is running, operation of the shifting servo. Push the shift button down for should be checked before running the model, in case of movement don’t use the throttle...

  • Page 16: Air Filter Maintenance

    THE TRX 2.5 RACING ENGINE ™ Introduction The TRX 2.5 Racing Engine is a specialty high-performance racing Traxxas strongly discourages engine. Its impressive performance is the result of years of focused changing or modifying any engineering development, and thousands of hours of controlled part of the TRX 2.5 Racing...
  • Page 17 THE TRX 2.5 RACING ENGINE TRX 2.5 Racing Engine Illustrated Air Filter Head Protector Housing Idle Speed Head (Cylinder head) Screw EZ-Start Drive Unit High-Speed Needle Fuel Intake Air Intake Carburetor Flywheel EZ-Start Motor Clutch Bell Engine Mount Crankshaft Throttle Low-Speed Crankcase Needle...
  • Page 18 The break-in procedure can be different for different the piston will feel very tight at top of the sleeve (top dead center), makes of engines. Follow the Traxxas directions for break-in exactly. and the engine will have good sealing and compression. If the fit Carb - Abbreviation for carburetor.
  • Page 19 On a Traxxas model this is done by holding your finger over Idle speed screw (ISS) - Located on the carburetor body. This screw the exhaust tip for one or two seconds while the engine is starting.
  • Page 20 10% nitro blend is more economical for the sport user. 10% also Top Fuel is the only fuel which is 100% certified for use in Traxxas engines. fuel dispensing bottle on provides greater latitude with the needle settings for easier tuning.
  • Page 21 Apply 30 drops of performance by switching to an aftermarket filter, and you may risk the Traxxas filter oil evenly to the top, bottom and sides of the filter engine damage due to poor filtration.
  • Page 22 THE TRX 2.5 RACING ENGINE The Carburetor 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 See page 29 for more Understanding the Carburetor adjustments information on how air tuning needles are there to adjust how much fuel is made available for The carburetor performs several functions.
  • Page 23 THE TRX 2.5 RACING ENGINE Slightly lean fuel mixtures deliver stronger, more efficient combustion and more power, but with less lubrication. Richen See Tuning Your TRX 2.5 Water Valve Racing Engine on page 28 (Controls Overall Flow) Slightly rich fuel mixtures deliver cooler running and more for complete information on High Speed Needle lubrication but with slightly less power.
  • Page 24 THE TRX 2.5 RACING ENGINE THE TRAXXAS EZ-START ELECTRIC STARTING SYSTEM Installing the EZ-Start Battery The Traxxas EZ-Start brings the convenience of push-button electric Using Other Chargers engine starting to your T-Maxx. The EZ-Start consists of a hand-held 1. Press the tab in the end of the battery Another convenient option control unit and an on-board motorized starter.
  • Page 25 THE TRX 2.5 RACING ENGINE Protection Mode The EZ-Start uses Smart Start technology to monitor the condition ™ When the EZ-Start controller of the system and detect failures. The controller monitors the load is in protection mode, wait being placed on the EZ-Start motor. If the load becomes excessive, at least three minutes before the system shuts off power to the motor to prevent costly damage attempting to start the...
  • Page 26 THE TRX 2.5 RACING ENGINE BREAKING IN YOUR TRX 2.5 RACING ENGINE Keep extra Traxxas glow plugs handy. The break-in process can cause The TRX 2.5 Racing Engine uses a ringless, aluminum-brass-chrome (ABC) See Important Points to deposits to form on the plug leading to plug failure.
  • Page 27 3-second count, hold for 2 more seconds, and then Only use the Traxxas break-in thousand two, and then stop. Repeat this starting and stopping gently apply the brake to stop. Count the five seconds out while procedure.
  • Page 28 THE TRX 2.5 RACING ENGINE Winter Break-in Tips We do not recommend that you operate your engine below 35° During the break-in process, the piston and sleeve wear into Fahrenheit. If you insist on running your vehicle below 35°F, be aware When tuning for each other to form a precise fit.
  • Page 29 THE TRX 2.5 RACING ENGINE Before you begin tuning, the engine should be warmed up to its normal 2. Bring the vehicle in and pinch closed the fuel line going into the operating temperature and running slightly rich. All final tuning adjustments carburetor (use the engine shut-off clamp).
  • Page 30 . If engine temperature is exceeding 270°F with proper cooling optional infrared temperature probe or and no signs of abnormal running, then avoid running the engine at its on-board temperature gauge (Traxxas maximum lean setting. Watch closely for any signs of overheating. on-board digital temperature gauge, part Richen the fuel mixture slightly to provide a safety margin of additional #4091).
  • Page 31 If it will not shift, then refer to the troubleshooting very fast and responsive and is intended for experienced drivers. section on www.Traxxas.com or call Traxxas support. Do not drive over the limits of your reflexes and ability. Drive with...
  • Page 32 TUNING ADjUSTMENTS Adjusting the Slipper Clutch 6. Turn the adjustment screw 1/8 turn clockwise to raise the shift The T-Maxx features an adjustable slipper clutch on the spur gear to point (later shifts). Be careful not to over tighten the adjustment help protect the drive train from sudden shock loads (such as landing off screw or you may damage the tension spring.
  • Page 33 TUNING ADjUSTMENTS Adjusting the Camber The ride height for the T-Maxx can be adjusted by adding or removing the clip-on spring pre-load spacers. Note that changes in ride height Two pivot balls are accessible through Factory toe-in settings can will occur when changes in shock angle or spring rates are made. You the spokes of each of the wheels on your be achieved by installing the can compensate for ride height changes by changing the pre-load...
  • Page 34 TUNING ADjUSTMENTS Shock Mounting Positions The outer pair of holes on the lower suspension arm should be used to lower the ride height of the T-Maxx, and increase the spring force (at the wheel). Big bumps and rough terrain require a softer For easier access to the This setting will improve high-speed cornering on smoother terrain by suspension with the maximum possible...
  • Page 35 After-run Procedure and wrist pins (reciprocating Inspect the gears for wear, broken teeth, or debris lodged between You must perform after-run maintenance on your Traxxas engine assemblies). the teeth. whenever the model will be stored for longer than a few hours. Taking...
  • Page 36 MAINTAINING AND STORING YOUR T-MAXX the engine. Be sure the throttle is in the idle position. You may 3. Turn the model upside down and plug in the EZ-Start controller. have to pinch the fuel line closed for several seconds before the 4.
  • Page 37 T-Maxx is in place and has not been cut or damaged. Next, make The contents of different brands of fuel (other than Traxxas Top Fuel) sure the batteries are all fresh or fully charged. Finally, if you are still in combination with extreme atmospheric conditions can also make experiencing short range, try a different location.
  • Page 38 Traxxas Top Fuel. and then refer to page 26 for instructions on priming the engine. Try a new Traxxas glow plug. Sometimes a glow plug will work well The engine could be worn. If the fit between the piston and sleeve enough to start the engine but not be able to deliver the engine’s...
  • Page 39 INDEX After-run procedure, 35 e-mail, 3 pressure line, 6, 17 mounting positions, 34 Air density, 22, 27, 29, 30, 37 Engine (TRX 2.5), 6, 16 Glow plug, 18, 24, 38 shock loads, 32 Air filter, 6, 21 break-in, 26 driver, 18 shock tower, 6 cleaning, 21 tank 1, 27...
  • Page 40 ’ MODEL 4910 1100 Klein Road, Plano Texas 75074 1-888-TRAXXAS 090723 KC0404-R01...

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