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26 • T-MAXX 3.3 OWNER’S MANUAL

acceleration by reducing engine rpm loss when shifting from 1st gear to 
2nd gear. The wide ratio gear set is designed for wide open areas and will 
increase top speed, but reduce acceleration due to greater rpm loss when 
shifting gears.

BRAKE SETUP & ADJUSTMENT

T-Maxx 3.3 is equipped with a disc brake that rides on the yoke of the 
transmission’s front output shaft. The brake is preset at the factory 
and should not require attention. As the brake material wears, future 
adjustments may be necessary.

Brake Shoulder Screw Adjustment
The two shoulder bolts that are used to secure the brake pads to the 
transmission housing may need to be adjusted periodically as the brake 
material wears down. They should be tightened so a 0.50mm (.020”) gap
exists between the disc and the brake pad (on the transmission side). 
Adjust in one of the following ways: 

1.

 

Use a .50mm feeler gauge between 

the brake pad insert and brake disc.

2.

 

Push the outer brake pad firmly 

against the inner pad with your 
finger, sandwiching the brake disc 
between the brake calipers. Tighten 
the brake shoulder bolts until they just barely touch the brake pads. Do 
not over tighten these fasteners or you could damage the brake calipers. 
Loosen each of the shoulder bolts by 1 turn.

Brake Pad Wear and Replacement
During normal use the brake pads should wear at a relatively slow rate.   
However, if the brake pads wear down close to the metal pad holders, they 
should be replaced. Any more wear than this could cause damage to the 
brake parts and improper operation of the brake system.

WHEELIE BAR SETUP & ADJUSTMENT

Wheelie Bar Installation
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 (part #4935X). The wheelie bar is intended for use on hard, 
high-traction surfaces, such as pavement, where controlling wheelies 
can be difficult. It is easily removed for off-road racing or jumping.

1. Slowly bend the end of the skid plate downward, and then key the  

skid plate into the slot of the wheelie bar. 

2.

 

Slide the wheelie bar down to the bottom of the skid plate,  
and then snap the clip over the lower bumper tube. 

3. Removal is opposite of installation. Snap the wheelie bar off of the 

bumper, and then slide the wheelie bar off of the skid plate.

Wheelie Bar  Setup Instructions
Changing the position of the wheelie 
bar height setting is easier when 
the wheelie bar is installed on the 
truck. Snap the upper arms off of the 
wheelie position cross bars. Move the 
upper arms to the desired wheelie 
position cross bar and then snap them 
in place. 

Each setting can offer different results based on the individual ride 
height and droop settings for a particular truck. Try to avoid riding on 
the wheelie bar wheels during normal driving (this can happen in the 
lowest setting with lower than stock ride heights).

Remove the wheelie bar when the T-Maxx will be jumped or driven in 
harsh off-road conditions.

TUNING ADJUSTMENTS

0.5mm

gap

Position 1 (big wheelies)

Bottom position on 
cross bars. Allows 
the truck to tip back 
the furthest during 
a wheelie for longer, 
high-speed wheelies. 

Position 2

Position 4 (no wheelies)

The top position on 
cross bars. Offers the 
flattest launches with 
little or no wheelie. 
This is the factory 
installed position 
to reduce wheelies 
during break-in.

Position 3

Upper Arms

Position 

Cross Bars

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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