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IMPORTANT INFORMATION
SYMPTOM CAUSE REMEDY
Steering servo
works, but no motor
function
Set-up / basic settings problem Repeat basic ESC set-up procedure from start; to store the function correctly you
must hold full-throttle position while you press the set-up button. Note also that all
transmitters functions must be set as described in the instructions
Speed control connected to wrong
receiver channel
Speed control must be connected to Ch.2; check polarity of receiver lead
Motor defective Install new motor
Wiring problem Check cables and connectors
Speed control defective Send ESC for repair
No steering servo
function
Receiver plug incorrectly wired Check polarity of receiver plug
no motor function Crystal faulty Replace components one by one to locate fault
Receiver faulty
Transmitter faulty
Receiver power supply circuit faulty Check BEC output voltage, or send ESC for repair
Motor does not
run when throttle is
advanced; motor
runs when braking
Transmitter throttle polarity (direction)
has been changed
Repeat ESC set-up procedure. Leave transmitter throttle direction unchanged
No brake function Set-up / basic settings problem Repeat basic ESC set-up procedure from start; see also “No motor function” description
Speed control faulty Send ESC for repair
Poor braking effect Set-up / basic settings problems Repeat basic ESC set-up (see above), or reset Low ATV, EPA, ATL or transmitter to
maximum
Motor pinion / reduction ratio too large Install smaller motor pinion
Insuffi cient top speed Problem with set-up / basic settings.
Transmitter has been changed after
speed control set-up, or has changed its
own settings
Repeat basic ESC set-up procedure from start, see also“No motor function”description
Poor acceleration Motor faulty, brushes sticking Install different motor
Speed control
overheats
Inadequate cooling Cut cooling openings in bodywork
Motor too powerful, or input voltage too
high
Use less powerful motor, or battery with lower voltage / fewer cells
Motor pinion / reduction ratio too high Install smaller motor pinion
Car drive / bearing system problem Check or replace components
Model run too often without cooling
period
Allow speed control to cool off after each full run
Motor does not stop;
continues running
slowly
Set-up / basic settings problem Repeat basic ESC set-up procedure
Speed control faulty Send ESC for repair
Radio interference Receiver or aerial too close to power
cables, motor, battery or speed control;
Receiver aerial too short, or coiled up
See “Installation Tips” section
Receiver fault; Transmitter or transmitter
module fault; Servo fault; Crystal fault,
or crystal not correct type
Replace components one by one to locate fault. Use original manufacturer‘s crystals
only
Connector contact problem Check connectors
Transmitter battery / cells fl at Replace dry cells or recharge transmitter pack
Transmitter aerial too short Extend transmitter aerial fully
Imprecise, non-linear
control characteristics
Transmitter battery / cells almost fl at Check transmitter battery regularly
Transmitter or transmitter “car program”
has been changed
Repeat basic ESC set-up procedure
MOTOR MAINTENANCE
XRAY 370 Super Size motor is a high-performance, sealed, non-rebuildable motor.
Keep the motor clean from debris by brushing it off or using compressed air.
Do not attempt to open the motor; this will render the motor inoperable.
Motor performance will stay high for a long time. However, when performance drops significantly, replace the motor.
This product is not suitable for children except under the direct supervision of an adult.
Never leave your model unattended with the battery connected.
Be sure that your operating frequency is clear before turning on or running your model, and never share the same frequency with somebody else at
the same time. Ensure that others are aware of the operating frequency you are using and when you are using it.
Always turn on your transmitter before you turn on the ESC or connect the battery pack. Always turn off the ESC or disconnect the battery pack before
turning off your transmitter.
Immediately after using your model, do NOT touch the model’s electronic equipment, as they may be hot.
When you connect the battery and turn on the electronics, make sure your car is physically prevented from moving or getting away from you and
causing damage. Technical faults of mechanical or electrical nature may cause the motor to burst into life unexpectedly, which can cause serious
damage or injury.
All cables and connectors must be effectively insulated. Short circuits can ruin your ESC, servo, or battery pack.
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