Traxxas TQ-3 User Manual download pdf (Page 4)

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T-MAXX 3.3

The Traxxas TQ Radio System

Installing Receiver Batteries

The radio receiver in your T-Maxx 3.3 uses 4 AA batteries. The battery

holder for the receiver batteries is located underneath the battery cover.

The battery cover can be identified by the on/off switch.

1. Remove the battery cover by

removing the two 3x10mm

buttonhead cap screws

from the cover.

2. Remove the battery holder

and install 4 AA alkaline

batteries. Make careful

note of the battery polarity

by comparing against the

diagrams in the battery holder.

3. Insert the battery holder into

the battery cover.

4. Reinstall the battery cover and secure with the screws

(see sidebar!).

To prevent losing control of your model, it is important to stop at the

first sign of weak receiver batteries. 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 batteries 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 install new

batteries (or recharge your battery pack if equipped). Do not try to

continue running your model with weak receiver batteries on board.

n/Off

Switch

-cell

battery

holder

Traxxas TRX Power System (optional)

The optional Traxxas TRX Power System can

be purchased separately to power the radio

system in the T-Maxx 3.3. Benefits include the

economy of a rechargeable 5-cell nickel metal

hydride (NiMH) battery pack that replaces AA

alkaline batteries, and increased voltage for

dramatically improved servo performance. The

TRX Power Charger (Part #3030X) is a peak-

detecting unit that will charge the RX Power

Pack (Part #3036 flat pack or #3037 hump pack) in about one hour. The

peak detection circuitry automatically shuts off the charger when the

maximum charge has been achieved. The TRX Power Charger also

includes a 7.2V adapter for charging 7.2V EZ-Start batteries. The TRX

Power Charger can operate on either AC or DC power. A special wiring

harness for T-Maxx (Traxxas part #3034) that includes a handy external

charging jack is required.

The optional DC car adapter (Part #3032) 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.

Traxxas' integrated TRX Power System is the easiest way to add the

power and economy of rechargeable batteries to your T-Maxx 3.3.

Consult your hobby dealer for purchasing information.

Direct the battery wires

through the slot in the

battery cover. If the wires

are not properly routed,

they may become broken

or shorted, causing radio

system failure and loss of

control.

If you use

rechargeable batteries in

your receiver, be aware

that when they begin to

lose their charge, they lose

power much more quickly

than regular alkaline

batteries. Signs of weak

receiver batteries include

sluggish steering response

and shortened radio

range.

Caution:

Discontinue running your

T-Maxx 3.3 at the first sign

of weak batteries to avoid

losing control.

If the radio system doesn’t

appear to work when the

transmitter and receiver

switches are turned on,

check for correct battery

installation.

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Traxxas TQ-3 User Manual Page 4

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