MODEL 3905 owners manual
Introduction 3 Before You Proceed 4 Safety Precautions 5 Tools, Supplies and Required Equipment 6 Anatomy of the E-Maxx 7 Quick Start: Getting Up to Speed 8 Decorating Your Model 9 The Traxxas TQ Radio System 15 Adjusting the Electronic Speed Control 17 Driving Your Model 20 Tuning Adjustments 25 Maintaining Your Model 26 Troubleshooting 27 Index 2 • E-Maxx Thank you for purchasing the new Traxxas E-Maxx electric monster truck.
Before You Proceed Carefully read and follow all instructions in this and any accompanying materials to prevent serious damage to your model. Failure to follow these instructions will be considered abuse and/or neglect. Support Before running your model, look over this entire manual and examine the model carefully. If for some reason you decide it is not what you wanted, then do not continue any further. Your hobby dealer absolutely cannot accept a model for return or exchange after it has been run.
Za 2 Bng^VY HZb^ 7daY All instructions and precautions outlined in this manual should be strictly followed to ensure safe operation of your model. Safety Precautions All of us at Traxxas want you to safely enjoy your new model. Operate your model sensibly and with care, and it will be exciting, safe, and fun for you and those around you. Failure to operate your model in a safe and responsible manner may result in property damage and serious injury.
Tools, Supplies and Required Equipment Your model 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. Supplied Tools and Equipment 2.0mm “T” wrench 1.5mm “L” wrench 2.5mm “L” wrench 8mm/5mm wrench Universal wrench For more information on batteries, see Use the Right Batteries on page 10. A peak-detecting charger is recommended for best performance and longest battery life.
Anatomy of the E-Maxx Half Shaft Steering Servo Slipper Clutch Access Plug Toe Link (Turnbuckle) Pivot Ball Pinion Gear (left side) Battery Hold-Down Electronic Speed Control (EVX-2) Hex Hub Battery Compartment Axle Carrier Toe Link (Turnbuckle) Motors (Titan) Suspension Arm (Front) Rear Body Mount Front Body Mount Rear Shock Tower Receiver Box Skid Plate Skid Plate Front Bumper Rear Bumper Rear Bulkhead Rear Differential Transmission Chassis Spur Gear Battery Compartment Antenna Mount S
Quick Start: Getting up to Speed The following guide is an overview of the procedures for getting your model running. Look for the Quick Start logo on the bottom corners of Quick Start pages. 1. Read the safety precautions on page 4 For your own safety, understand where carelessness and misuse could lead to personal injury. 2. Charge the battery packs • See sidebar, page 12 9. Detail your model • See page 8 Apply other decals if desired. 10. Drive your model • See page 17 Fully charge two 7.2 or 8.
Decorating your Model Applying The Decals Tire Gluing The main decals for your model have been applied at the factory. The decals are printed on selfadhesive clear mylar and are die-cut for easy removal. Use a hobby knife to lift the corner of a decal and lift it from the backing. To apply the decals, place one end down, hold the other end up, and gradually smooth the decal down with your finger as you go. This will prevent air bubbles.
The Traxxas TQ Radio System Your model is equipped with the Traxxas TQ Radio System. The Traxxas TQ Radio System is a 2-channel system that provides high-power output up to a quarter mile. Model 3905 uses two steering servos and an electronic speed control. The receiver is equipped with four channels and dual channel 1 outputs for the steering servos.
The Traxxas TQ Radio System Radio System Terminology 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 more quickly than regular alkaline batteries.
The Traxxas TQ Radio System Installing Transmitter Batteries Your TQ transmitter uses 8 AA batteries (see sidebar, page 10). The battery compartment is located in the base of the transmitter. Setting up the Antenna 1. Locate the black antenna wire that exits the receiver box. 2. Pull the wire straight with your fingers and then insert the end of the wire into one end of the antenna tube (the antenna tube, tip, crimp nut and sleeve are located in the documents bag).
The Traxxas TQ Radio System Installing Battery Packs Use the Right Charger The most convenient type of charger is an AC peakdetecting charger that plugs directly into an AC wall outlet. It contains special peak-detection circuitry that 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.
The Traxxas TQ Radio System TQ Radio System Controls RN RIGHT TU NL TUR EFT Steering Brake/Reverse Neutral There are two settings available: 50/50: Allows equal travel for both acceleration and reverse. 70/30: Allows more throttle travel (70%) and less reverse travel (30%). 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.
The Traxxas TQ Radio System TQ Radio System Rules Remember, always turn the TQ transmitter on first and off last to avoid damage to your model. Your speed control was adjusted to the radio from the factory. It is possible for the throttle trim control on the transmitter to have moved during transit or while handling the transmitter. If the motors run when the model is switched on, then move the throttle trim control on the transmitter until the motors stop.
Adjusting the Electronic Speed Control The EVX-2 electronic speed control is factory set and should not require any adjustments. These instructions are provided for your reference. Transmitter Adjustments for the EVX-2 ESC Before attempting to program your EVX-2, it is important to make sure your TQ transmitter is properly adjusted (set back to the factory defaults). Otherwise, you may not get the best performance from your speed control. The transmitter should be adjusted as follows: 1.
Adjusting the Electronic Speed Control Patent Pending Training Mode (Profile #3) reduces forward and reverse throttle by 50%. Training Mode is provided to reduce the power output allowing beginning drivers to better control the model. As driving skills improve, simply change to Sport or Race Mode for full-power operation. Tip For Fast Mode Changes The EVX-2 is set to Profile 1 (Sport Mode) as the default.
Driving your Model Now it’s time to have some fun! This section contains instructions on driving and making adjustments to your model. Before you go on, here are some important precautions to keep in mind. Allow the model to cool for a few minutes between runs. This is particularly important when using high capacity battery packs that allow extended periods of running. Monitoring temperatures will extend the lives of the batteries and motors..
Driving Your Model conditions in order to maintain the performance of your model. Do not run your model in wet conditions if you are not willing to accept the additional care and maintenance responsibilities. Not all batteries can be used in wet environments. Consult your battery manufacturer to see if their batteries can be used in wet conditions. Do not use LiPo batteries in wet conditions (note: the EVX-2 is not LiPo compatible). The Traxxas TQ transmitter is not water resistant.
Driving Your Model 9. Additional Maintenance: Increase your frequency of disassembly, inspection and lubrication of the following items: This is necessary after extended wet use or if the vehicle will not be used for an extended period of time (such as a week or longer). This additional maintenance is needed to prevent any trapped moisture from corroding internal steel components. • Stub axle housing bearings: Remove, clean, and re-oil the bearings.
Tuning Adjustments We recommend using two-hole pistons with a range of oil viscosities from 30W to 50W (available from your hobby shop). The thinner viscosity oils (30W or less) flow with less resistance and provide less damping, while thicker oils provide more damping. Use only 100% pure silicone shock oil to prolong seal life. From the factory, the E-Maxx uses 30W oil. Suspension Tuning For easier access to the rear-most shock mounting screw, remove the one end of the rear turnbuckle.
Tuning Adjustments Lower Shock Mounting Positions In the out-of-the-box configuration, the shocks are installed in position (A) on the shock tower and position (2) on the lower suspension arm. This setting allows for firm suspension and low ride height, increasing the spring force (at the wheel). This setting improves high-speed cornering on smoother terrain by lowering the center of gravity. Body roll, brake dive, and squat are also reduced. moved from position (1) to position (4).
Tuning Adjustments To achieve a good starting point for the slipper clutch, tighten the slipper clutch adjusting nut clockwise until the slipper clutch adjusting spring fully collapses (do not over tighten), and then turn the slipper clutch nut counterclockwise ¼ to ½ turn. All of the toe links are installed on the truck so that the left hand thread indicators point to the same direction.
Tuning Adjustments Adjusting Gear Mesh Incorrect gear mesh is the most common cause of stripped spur gears. Gear mesh should be checked and adjusted anytime a gear is replaced. Access the gears by removing the single screw on the top gear cover. The Titan™ 550 Motors on your E-Maxx have been carefully designed to match the needs of the E-Maxx. The Titans are made to run efficiently at high voltage to provide more torque and longer run times.
Tuning Adjustments Adjusting the Steering System 1. Disconnect the short steering link that connects the servo saver to the servo horn. 2. Remove the drag link that connects the two servo horns. 3. Remove the servo horns 4. Connect a pair of charged batteries to the ESC. Turn on the transmitter, then the ESC. Note: It is recommended to unplug the motors or remove the pinion gears during steering setup. 5. Adjust the steering trim on the transmitter to the neutral “0” position. 6. Install both servo horns.
Maintaining your Model Your model requires timely maintenance in order to stay in top running condition. The following procedures should be taken very seriously. Inspect the vehicle for obvious damage or wear. Look for: 1. Cracked, bent, or damaged parts 2. Check the wheels and steering for binding. 3. Check the operation of the shock absorbers. 4. Check the wiring for any frayed wires or loose connections. 5. Check the mounting of the receiver and servo(s) and speed control. 6.
Troubleshooting The following section addresses some very basic ESC and radio questions you may have about your model. Most questions arise from simple user errors or minor adjustments that are easy to correct. If you can’t find a solution for your model here, then visit our website at www.Traxxas. com/support. 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).
Index Alignment Settings, 22 Antenna mount, 6 receiver, 9, 11 antenna crimp nut, 11 antenna nut wrench, 5, 11 transmitter, 13 Axle carrier, 6, 20, 22 Batteries AA alkaline batteries, 5, 10 AA rechargeable batteries, 5, 10 charging, 4, 12 compartment, 6 installing, 12 LiPo, 5, 12, 23 NiCad, 10 NiMH, 10 safety, 4 side-by-side packs, 12 stick packs, 12 Battery Hold-Down, 6, 12 BEC (Battery Eliminator Circuit), 10 Bellcrank, 23 Body Mount, 6 Brushless, 23 Bulkhead, 6 Bumper, 6 Camber, 22 Caster, 20 Charger, 12
owners manual MODEL 3905 1100 Klein Road, Plano Texas 75074 1-888-TRAXXAS 071121 KC0547
