UDI R/C UD1609 User manual

Important
Notice
FULL PROPORTIONAL REMOTE CONTROL UDIRACING SERIES
1/16 UDISPORT DRAG BATTLE TOP FUEL
UD1609 / UD1609PRO
Our company's products are improving all the time,design and specifications are subject to
change without notice. All the information in this manual has been carefully checked to ensure
accuracy, if any printing errors, our company reserve the final interpretation right.
This product is suitable for users over 14 years old.
Please read this instruction manual carefully befores use.
OPERATING
INSTRUCTIONS
V1.0

02
NO!
THANK YOU
●Thank you for choosing this product. The remote control model is designed to be fun to drive and uses high quality parts to
improve durability and performance. The instruction manual you are reading is to make the product easier to understand and
explain more thoroughly. We hope you enjoy this remote control model car. If you have any problems or need help, please call
us and we will try our best to help you. You can also contact us through the following website: www.udirc.com.
●This is a radio control model product, not a toy! which needs regular maintenance to obtain the best performance. If you
don't do regular maintenance, it can affect performance. We have all the necessary parts and accessories to ensure that
your vehicle maintains its best performance.
●The warning or attention symbol will alert you to potentially dangerous steps. Please read and understand the instructions
carefully before proceeding.
●The model must stop immediately and check for the reasons when it is operating abnormal.
●Keep in mind that people around you may also operate a radio control model.
●The motor is a heating part, please do not touch it.
● If you don't use the model for a long time, please raise the chassis to let the wheels hang in the air.
●Please keep the package or instructions as they contain important information.
WARNING
Failure to follow these instructions may result in injury to
yourself or others. You may also cause property damage
or model damage.
WARNING ATTENTION
● Please don't reverse contact
or disassemble the battery,
as this way will cause the
battery to explode.
●DO NOT put the model in high
temperature, humidity and
direct sunlight.
●Cutters, nippers and
screwdrivers need
careful handling.
●The product contains small
and sharp parts. Keep away
from children.
● DO NOT operate in public
streets or crowded places
to avoid accidents.
● Be sure to read the instruction manual
in detail, or ask for the person with
experience in operation, and read
with the guardian if necessary.

03
●Read the instruction manual in detail, or ask for the person with experience in operation, and read
with the guardian if necessary.
●Make sure all screws and nuts are properly tightened.
●The remote control and the vehicle should always use the battery with saturated power to avoid
losing control of the model.
●Please make sure that the throttle trigger is in the center position.
●First turn on the power of the remote control, and then turn on the power of the model.
●Use this product only in open areas (>4x4m) without pedestrians.
●DO NOT put fingers or any objects inside rotating and moving parts.
●First turn off the model power, then turn off the remote control power. And take out the battery.
●Daily maintenance is required after the model is used.
WARNING
●Please read and observe all precautions before use. Improper use of battery may cause danger.
●It is normal for the battery to heat up after operation. Please be careful when handling the battery.
If the wire is worn, it is easy to short circuit and cause fire.
●Wasted li-ion battery must not be placed with household trash. please contact local environmental or
waste agency or the supplier of your model or your nearest li-ion battery recycling center.
1) After use, please disconnect the power supply and pull out the plug;
2) Remove the battery from the model before charging;
3) DO NOT charge the battery when it is bulging or expanding;
4) Keep away from damp, corrosive environment and heat source;
5) Please charge the battery under adult supervision;
6) Pay attention to the polarity of the battery when installing or replacing the battery;
7) Different types of batteries or old and new batteries should not be mixed;
8) DO NOT short circuit any terminals;
9) DO NOT short circuit, decompose or put the battery into fire;
10) Please use the attached special charger to charge the battery.
Battery
safety
Before Operation
During Operation
After Operation
DANGER!
Only suitable
for age 14+
WARNING

04
Model Battery
Product maintenance
Troubleshooting
Apply lubricating
oil to external
metal parts.
Please separate
the car and battery
when not in use.
Please remove the sediment
and dirt on the car
completely and must be kept
dry after play.
When not in use, remove
the battery from the
model and transmitter.
Cause Solution
Remote control car
doesn't work
Restart the transmitter
Please make sure the battery is installed correctly or replace it with a new one.
If the transmitter doesn’t work,please replace it with a new one.
Increase the percentage of steering.
Please make sure the steering is it include the sundries or some parts damaged.
When the battery is low, charger it in time or replace it with new battery.
Please make sure the wheel or drive shaft is entangled by debris and remove it.
The motor may have reached the expiration date, replace with the same motor.
Please keep the car within effective control distance.
When the battery of the transmitter in low battery, please replace it in time.
Check whether all parts of the model car are damaged and replace them.
High temperature protection is triggered when the ESC’s temperature is too high,
Please pause for 10 minutes before using.
The signal is disturbed, restart the car and the transmitter.
Please make sure there are obstacles or interferences.
Long frequency matching time
Operation delay
The vehicle moves forward (backward)
automatically or makes a sound of "en...."
The indicator of the transmitter
is not bright
The steering of the model car
has no force or function

05
The picture is only for reference, please make the object as the standard.
1601-027
1601-023
1601-028
1609-005
1609-006
1609-008
1604-010
1601-015
1601-035
1805-003
1806-003B
1805-004
1805-005
1601-007
S1701
1609-004
1609-004
1601-011
ESC01W
1601-012
1601-013
1601-025
1601-018
Model Car Summary
Power switch
Power switch
Professional version
Regular version

06
1609-002
1609-002
1601-002
1609-001
1609-001

07
1601-011
ESC01W
Antenna
Antenna
Electronic speed controller
Motor
Motor
Power switch
Power
switch
Steering
servo
Steering
servo
Lights
Lights
Model Battery
Model Battery

08
Power switch
OFF ON
Preparation of transmitter
Electronic stability system (ESP)
gyroscope action ratio adjusting knob
Steering trim knob
Throttle reverse
Car status indicator (green)
When the battery of cars is in low battery, the indicator
light will flash. It remind operator to replace the battery
as soon as possible to avoid accidents.
Transmitter indicator (red)
When the signal is weak or interrupted, the indicator will
flash quickly. When the power of the transmitter is low,
the indicator light will flash slowly. The above situation
should be handled as soon as possible to avoid accidents.
Steering reverse
Steering range
adjustment knob
Low Min Max High
Transmitter function
main interface
Default steering
wheel direction
Default throttle trigger
direction
Forward / Backward / Brake
Turn left / Turn right
Throttle speed limit switch
Car lights control button
The car lights color mode can be
switched and the car lights can
be switched off.
Low speed mode:
Throttle output limited to 50%.
Medium speed mode:
Throttle output limited to 75%.
High speed mode:
100% throttle output.

09
1) There is no ESP function when the remote control car retreats.
2) When the remote control car is moving forward, it is necessary to pull the throttle trigger
backward to reach more than 30% of the stroke before the gyroscope starts to work.
3) With the increase of car speed, the gyroscope action ratio also increases synchronously.
ATTENTION
This product has the function of ESP car stability system, which can effectively correct the car attitude and direction when the car skids
or loses control. The function and sensitivity of the car gyroscope sensor can be adjusted through the ESP knob of the transmitter.
Adjustment of gyroscope action ratio
Steering trim
Steering range adjustment
When the steering wheel is in the center position, if the car can not drive in a straight line, please use the steering trim knob to adjust
and correct the left and right directions of the front wheels.
The steering range adjustment knob can be used to adjust the left and right steering angle of the car.
The action ratio
decreased
The action ratio
increases
When the front wheel
is left, the knob rotates
to the right.
Minimum
steering
angle
Maximum
steering
angle
When the front wheel
is right, the knob
rotates to the left.

10
Note Direction.
Open battery cover at the bottom of transmitter. Install batteries.
Follow the direction of batteries designated in the inside of the battery box.
1.5V×4 AAA Batteries(not included)
Battery Cover
Assembly of the transmitter battery
②
①
Model Battery charging
Connect the attached charger with the model battery charging
input port, and then connect other USB output ports. When
charging, the charging indicator is flashing, and the indicator is
always on after charging. Do not put the battery in the model
when charging. The battery must be cooled before charging.
The battery contains less power when leaving the factory,
so it must be charged and saturated before use.
Battery
input port
Model Battery
Charger
output port
Charging
Charger box
Power
USB adapter (not included)
Please use the charging box provided with the product and make sure it is connected properly.
Warning: someone must be watching while charging.
Assembly of model battery
Remove the body
The body and clips are make
the object as the standard
1) Pull out the body clips

11
1>
2) Pull out the clips, and remove
the battery hold-down.
Model Battery
ESC
input port
Output
port
4) Reset the bodyshell
3) Put the battery into the battery
compartment, Battery hold-down
reset clips reset and then connect
with the ESC.
Operational guidance
Frequency matching
Place the model on level ground
Do not touch the throttle
trigger when turning on
thepower of the transmitter.
OFF ON 1) Turn on the power of the
transmitter, and the red indicator
light will flash quickly.
Consistent direction

12
1601-011 Power on method
1601-011
After the car power is turned on, the transmitter and the car will carry out automatic frequency matching. When the indicator light of the
transmitter and the car lights are always on, the frequency matching is successful. In the process of frequency matching, the car lights
will flash rapidly. At this time, the gyroscope is being calibrated automatically. Please place the car on the level ground to complete this
operation. After calibration, the car lights return to normal.
2) Press for 2 second to turn on the power. The lights flash and
enter the frequency matching state. Press for 2 second to turn off
the power.
ESC01W Power on method
ESC01W
2) Press for 2 second to turn on the power. The lights flash and
enter the frequency matching state. Press for 2 second to turn off
the power.
2> Manipulation method
Go forward Go backward
Throttle trigger Throttle trigger

13
Turn left Turn right
Steering wheel Steering wheel
Turn leftGo backward Turn rightGo backward
Turn left and move backward Turn right and move backward
Turn leftGo forward Turn rightGo forward
Turn left and move forward Turn right and move forward
Steering wheelThrottle trigger
Steering wheelThrottle trigger Steering wheelThrottle trigger
Steering wheelThrottle trigger
Low speed High speed Brake/Backward
Pull the throttle trigger back
gently and the car will move
forward slowly.
The throttle trigger is pulled to
the maximum, and thecar moves
forward quickly.
When the car is moving forward, the throttle trigger
is pushed forward and the car stops moving. After
the throttle trigger returns to the middle position,
it pushes forward again, and the car moves backward.

14
1601-004
1601-022
The picture is only for reference, please make the object as the standard.
1601-016
1601-018
Wheels
Shock absorbers
Wheel
Assembly diagram of spare parts

15
1601-050
1601-051
1601-050
1601-017
1601-017
1601-021
1601-021
1601-019
1601-022
1601-022
1601-026
1601-026
1609-005
1601-027
1601-025
1601-025
1601-018
1601-018
1601-023
1601-028
1601-028
Assembly of front suspension arm
Assembly of rear suspension arm

16
1601-039 1601-035
1601-034
1609-008
1601-055
1601-056
1601-064
1604-010
1604-010
Assembly of front bumper

17
1601-039 1601-035
1601-034
1805-013
1609-006
1609-006
1609-008
1601-055
1601-056
1601-064
1601-054
Anti-roll wheel
Assembly of front(rear) differentials

18
1601-015
1601-060
1601-034
1601-034
1609-008
1609-008
1601-013
1601-024
1601-024
1601-060
1601-056
1601-056
1601-049
1601-054
1601-054
1601-054
1601-062
1601-033
1601-024
1601-024
1601-030
1601-031
1601-031
1601-031
1601-032
Steering servo
Assembly of steering servo
Upper chassis

19
1601-041
1601-017
1601-036 1601-017
1601-038
1601-021
1601-054
1601-053
1601-056
1601-056
1601-062
1601-056
Main propeller shaft system
Assembly of chassis

20
1609-001A
Body assembly
1609-001B
Body assembly
1601-002
Body clips × 4
The picture is only for reference, please make the object as the standard.
1609-002
Front and rear light groups
1601-015
Upper chassis
1601-016
Wheel adapters × 4
1805-003
Wheel × 2
1806-003B
Wheel × 2
1806-003A
Wheel × 2
1805-004
Motor assembly(390)
1805-005
Motor assembly(Brushless)
S1701
Steering servo
(Only for brushless motor)
1601-007
Steering servo
(Only for 390 motor)
1609-008
Front & Rear shock tower
assembly
1609-004
Front & Rear shock absorber
1604-010
Front bumper assembly
1601-011
Electronic speed controller
(Only for 390 motor)
ESC01W
Electronic speed controller
(Only for brushless motor)
1601-012
Model battery
1601-013
Battery hold-down
Buyable accessories