Speed Control - Traxxas TRX-4 Assembly Manual

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. The precautions outlined in this manual should be strictly
followed to help ensure safe operation. You alone must see that the
instructions are followed and the precautions are adhered to.
Important Points to Remember
• Your model is not intended for use on public roads or congested
areas where its operation can conflict with or disrupt pedestrian or
vehicular traffic.
• Never, under any circumstances, operate the model in crowds of
people. Your model is very fast and could cause injury if allowed to
collide with anyone.
• Because your model is controlled by radio, it is subject to radio
interference from many sources that are beyond your control. Since
radio interference can cause momentary losses of radio control,
always allow a safety margin in all directions around the model in
order to prevent collisions.
• The motor, battery, and speed control can become hot during use. Be
careful to avoid getting burned.
• Don't operate your model at night, or anytime your line of sight to the
model may be obstructed or impaired in any way.

Speed Control

Your model's electronic speed control (ESC) is an extremely powerful
electronic device capable of delivering high current. Please closely
follow these precautions to prevent damage to the speed control or
other components.
• Disconnect the Battery: Always disconnect the battery or batteries
from the speed control when not in use.
• Insulate the Wires: Always insulate exposed wiring with heat shrink
tubing to prevent short circuits.
44 • TRAXXAS TRX-4
• Transmitter on First: Switch on your transmitter first before switching
on the speed control to prevent runaways and erratic performance.
• Don't Get Burned: The ESC and motor can become extremely hot
during use, so be careful not to touch them until they cool. Supply
adequate airflow for cooling.
• Use the Factory-Installed Connectors: Do not change the battery
and motor connectors. Improper wiring can cause fire or damage to
the ESC. Please note that modified speed controls can be subject to a
rewiring fee when returned for service.
• No Reverse Voltage: The ESC is not protected against reverse polarity
voltage.
• No Schottky Diodes: External Schottky diodes are not compatible
with reversing speed controls. Using a Schottky diode with your
Traxxas speed control will damage the ESC and void the 30-day
warranty.
• Always adhere to the minimum and maximum limitations of the
speed control as stated in the specifications table in the Owner's
Manual. If your
ESC operates on two batteries, do not mix battery types and
capacities. Use the same voltage and capacity for both batteries.
Using mismatched battery packs could damage the batteries and
electronic speed control.
Recycling Traxxas Power Cell NiMH Batteries
Traxxas strongly encourages you to recycle Power Cell NiMH batteries
when they reach the end of their useful life. Do not throw batteries
in the trash. All Power Cell NiMH battery packs display the RBRC
(Rechargeable Battery Recycling Corporation) icon, indicating they are
recyclable. To find a recycling center near you, ask your local hobby
dealer or visit www.call2recycle.org.