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T-MAXX 3.3 OWNER’S MANUAL • 9 

TRAXXAS TQ

i

 RADIO SYSTEM

RADIO SYSTEM RULES 

• 

Always turn your TQi transmitter on first and off last. This 
procedure will help to prevent your model from receiving 

stray signals from another transmitter, or other source, and running out 
of control. Your model has electronic fail-safes to prevent this type of 
malfunction, but the first, best defense against a runaway model is to 
always turn the transmitter on first, and off last.

• In order for the transmitter and receiver to bind to one another, the receiver in 

the model must be turned on within 20 seconds of turning on the transmitter. 
The transmitter LED will flash fast red indicating a failure to link. If you miss it, 
simply turn off the transmitter and start over.

• 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 radio signal between the receiver and the 
transmitter.

 Loss of the radio signal can cause you to lose control of 

your model.

RADIO SYSTEM BASIC ADJUSTMENTS

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 reverse.

70/30

: Allows more throttle travel (70%) and less reverse travel (30%).

50/50 is the required setting for the T-Maxx with TRX 

3.

3 Racing  

Engine installed.

Steering Trim 

The electronic steering trim located on the face 
of the transmitter adjusts the neutral (center) 
point of the steering channel. 

Multi-Function Knob

The Multi-Function knob can be programmed to 
control a variety of functions. From the factory, 
the Multi-Function knob controls steering 

sensitivity, also known as exponential or “expo.” When the knob is turned 
counterclockwise all the way to the left (default position), expo is off 
and steering sensitivity will be linear (the most commonly used setting). 
Turning the knob clockwise will “add expo” and decrease the steering 
sensitivity in the initial range of steering wheel travel left or right from 
center. For more detail on steering exponential, refer to page 10.

USING THE RADIO SYSTEM

The TQi Radio System has been pre-adjusted at the 
factory. The adjustment should be checked before 

running the model, in case of movement during shipping. Here’s how:

1.  Turn the transmitter switch on. The status LED on the transmitter 

should be solid green (not flashing).

2.  Turn on the receiver switch in the model. The switch is located on 

the battery compartment.

3.  Position the T-Maxx so that its front wheels are off the ground. 

Make sure your hands are clear of the moving parts of the model. 

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, check for weak receiver batteries.

5.  When looking down 

at the 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. 

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. 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 model, 

followed by the hand-held transmitter.

Always turn your

transmitter on first.

Then start your engine.

1

2

Always turn your

receiver on second.

3

Remember, always turn the TQi transmitter 

on first

 and 

off last

 to 

avoid damage to your T-Maxx 

3.3.

 Never turn the radio off while 

the engine is running.

Automatic Fail-Safe
The TQi transmitter and receiver are equipped with an automatic 
fail-safe system that does not require user programming. In the event 
of signal loss or interference, the throttle will return to neutral and the 
steering will hold its last commanded position. If Fail-Safe activates 
while you are operating your model, determine the reason for signal 
loss and resolve the problem before operating your model again.

*Requires optional 4995X reverse kit.

*

*

Summary of Contents for T-Maxx 3.3 49077

Page 1: ...owner s manual MODEL 49077 1...

Page 2: ...not accept a T Maxx 3 3 for return or exchange after it has been run Warnings Helpful Hints Cross References Throughout this manual you ll notice warnings and helpful hints identified by the icons bel...

Page 3: ...ng Do not use battery packs that have been damaged in any way Do not use battery packs that have damaged wiring exposed wiring or a damaged connector as this may create the risk of fire Children shoul...

Page 4: ...er Small 1 8 inch flat blade screwdriver for tuning Air filter oil Traxxas part 5263 8 AA alkaline batteries 10 quart 5010 20 quart 5020 33 quart 5030 10 gallon 5060 20 gallon 5070 33 gallon 5080 RX P...

Page 5: ...Pipe Exhaust Header TRX 3 3 Racing Engine see pg 13 for details Pressure Line Fuel Line EZ Start Motor EZ Start Plug Bulkhead Body Mount Post Spur Gear Chassis Slipper Clutch Driveshaft Half Shaft On...

Page 6: ...this entire manual for complete instructions on the proper use and maintenance of your model 1 Read the safety precautions on page 3 9 Fill the fuel tank See page 14 For your own safety understand whe...

Page 7: ...iation for milliamp hour A 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 s...

Page 8: ...BATTERIES The radio receiver in your model uses 4 AA batteries The receiver battery holder is located underneath the battery cover The battery cover can be identified by the on off switch 1 Remove th...

Page 9: ...ff and steering sensitivity will be linear the most commonly used setting Turning the knob clockwise will add expo and decrease the steering sensitivity in the initial range of steering wheel travel l...

Page 10: ...e of travel This setting provides linear servo response the steering servo s movement will correspond exactly with the input from the transmitter s steering wheel Turning the knob clockwise from cente...

Page 11: ...ubic 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...

Page 12: ...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 att...

Page 13: ...t Motor Engine Mount Low Speed Needle Throttle Arm Crankshaft Flywheel Carburetor Air Intake Fuel Intake High Speed Needle Idle Speed Screw EZ Start Plug Positive Wire Negative Wire Fuel Line Fuel Tan...

Page 14: ...e 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...

Page 15: ...firmly to the side to release it Do not pull straight up 2 Remove the pre filter element 3 Remove the 3x6mm screw in the end of the filter housing Remove the front housing and the primary filter elem...

Page 16: ...justing 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 Factory Ne...

Page 17: ...ime 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 e...

Page 18: ...emperature 70 F or 21 C or above the first time you start it If it s cooler than room temperature outside remove all fuel and keep your T Maxx 3 3 indoors until you re ready to start it and then take...

Page 19: ...tical 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 prem...

Page 20: ...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 decelerat...

Page 21: ...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 The Traxxas Link application s dashboard tempe...

Page 22: ...ng caused by loose or missing parts If your T Maxx 3 3 gets stuck stop driving immediately Move the vehicle and then continue driving Don t tow anything with your T Maxx 3 3 The engine is cooled by ai...

Page 23: ...used to increase the ride height of the T Maxx 3 3 The more vertical position of the shocks will allow for lower shock progression and the soft plush feel that s characteristic of a Traxxas Maxx Truc...

Page 24: ...rs adjust the static camber The pivot balls are protected by blue dust plugs To adjust your static camber insert the supplied 2 5mm hex wrench through the slit in the dust plug and engage the end of t...

Page 25: ...nough room to remove the spur gear 4 Remove the three screws on the slipper clutch assembly using a 2 5mm hex wrench Slide the spur gear off of the slipper shaft If the spur gear is too tight on the s...

Page 26: ...nstallation The Maxx Wheelie Bar can be used on any Maxx truck with the stock rear skid plate rear bumper and rear bumper mounts It is also compatible with the Traxxas accessory aluminum rear bumper p...

Page 27: ...h 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...

Page 28: ...rful Traxxas Link App available in the Apple App StoreSM or on Google PlayTM gives you complete control over the operation and tuning of your Traxxas model with stunning visuals and absolute precision...

Page 29: ...to control Throttle Sensitivity Throttle Sensitivity works the same way as Steering Sensitivity as described on page 10 but applies the effect to the throttle channel Only forward throttle is affected...

Page 30: ...r words the model you used the longest time ago will be deleted Activating Model Lock will lock the receiver in memory so it cannot be deleted You may also bind multiple TQi transmitters to the same m...

Page 31: ...returns to driving mode MENU TREE FORMULAS To select functions and make adjustments to the TQi transmitter without referencing the menu tree turn your transmitter on find the function in the left colu...

Page 32: ...150202 KC2224 R01 6200 Traxxas Way McKinney Texas 75070 1 888 TRAXXAS owner s manual MODEL 49077 1...

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