THUNDER TIGER KT8 User manual

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No.6570
The contents are subject to change without prior notice due to product improvements and specificatrion changes.
Instruction Manual
WARRANTY
Thunder Tiger Corporation guarantees this model kit to be free from defects in both material and workmanship. The total monetary
value under warranty will іп no case exceed the cost of the original kit purchased. This warranty does not cover any components
damaged by use or modification. Part or parts missing from this kit must be reported within 60 days of purchase. No part or parts
will be sent under warranty without proof of purchase. To receive part or parts under warranty, the service center must receive a
proof of purchase and/or the defective part or parts. Should you find a defective or missing part, contact the authorized Thunder
Tiger Service/Distributor nearest you. Under no circumstances can a dealer or distributor accept return of a kit if assembly has
started.

FI
Introduction
Thank you for purchasing this Thunder Tiger product. This manual contains the steps and instructions
required to assemble your car. Please read this manual completely before attempting to start
maintenance. Follow the directions in this manual closely to reduce problems during operation. We
offer online help on our www.acehobby.com or www.thundertiger.com and forums and our product
specialists are ready to take your call if you have any technical questions. Have fun and enjoy the
exciting world of R/C.
CAUTION
1. This product is not a toy. It is important to familiarize yourself with the model, its manual, and its construction
before assembly or operation.
2. Always keep this instruction manual for your assembling and operating reference.
3. Do not operate model products in rain, on public roads, near crowds, or near areas with restricted radio
operation.
4. This product, its parts, and its construction tools can be harmful to your health. Always exercise extreme
caution when assembling and/or operating this product. Do not touch any part of the model that is rotating.
5. Use an adequate charger for the batteries and follow the instruction correctly.
6. Right after use, do not touch the motor or ESC because they may generate high temperatures!
7. Do not stall the motor. The ESC may fail if power is applied to the motor when car cannot move freely.
8. By the act of assembling or operating this product, the user accepts all resulting liability. If the buyer is not
prepared to accept this liability, then he/she return this product in new, unassembled, and unused condition
to the place of purchase.
WARNING: To avoid a possible fire hazard, ALWAYS unplug the battery after use. Do NOT
leave your vehicle unattended with the battery plugged in.
Index
INTRODUCTION >> 1 FAIL SAFE (F/S) FUNCTION SETTING »>8
CAUTION >> 1 OPERATING RADIO STEERING FUNCTION »» 10
ITEMS REQUIRED FOR OPERATION »» 2
CHARGING THE BATTERY PACK »* 3
INSTALLATION OF BATTERY PACK p> 3
PREPARING THE CHASSIS >> 4
DRIVER FIGURE >> 4
RADIO BATTERY INSTALLATION > 4
RADIO OPERATION »»4
The ACE RC Cougar PS3 2.4GHz Radio System »» 5
TRANSMITTER CONTROLS >> 6
BINDING PROCESS»» 7
MAINTENANCE AFTER RUNNIN >> 11
BEFORE OPERATING >> 11
DRIVING TIPS »» 11
TROUBLESHOOTING »» 12

Items Required For Operation
Ready To Run Contents
Equipment Needed
(Not Included)
Brushless Motor
Brushless Motor ESC
Charger
AA Alkaline battery
x8 for transmitter
3-Channel Transmitter Receiver Sad qut
Tools Included
Hex Wrenches
1.5/2.0mm
Battery Adapters
(for charging)
Tools Required For Assembly (Not Included)
Needle
Nose
Pliers
Wire
Cutter
:
: vg Super Glue iw Thread Locking Adhesive
Philips Screwdrivers (CA Glue) (Threadlocker) Grease

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1.1 CHARGING THE BATTERY PACK
(Battery & charger are not included)
1. When charging the battery, first plug the adapter connector into the charger. Connect the adapter connector to the battery
pack. Confirm the link between charger, adapter connector and battery pack that are properly connected in order. You can
connect the charger to the AC wall outlet now.
2. Once the charger is connected, a red LED will light up to indicate that the charging has begun. The LED will light up green to
indicate that charging is completed.
3. When finished charging, first disconnected the charger from the AC wall outlet. Disconnect the battery pack from the charger.
Install the battery pack on your vehicle.
a. Disconnect the battery connector then squeeze the battery tray tabs towards each other to allow the battery tray to slide
underneath the chassis.
b. Place a fresh battery pack along with the foam spacer onto the battery tray then slide it up from under the chassis until the
battery tray tabs lock into place. (Always install the foam spacer with the battery as this acts as a spring to keep the locking
tabs in place.)
c. Finally, reconnect the battery connector.
BATTERY PLACEMENT
TA AO.
d ]
BATTERY FRONT BATTERY BACK is { |
Li | |
For most cases гип the battery in the rearward position (foam spacer towards the front). Typically this will be the most stable and
easiest to drive. Try moving the battery forward if the track surface has better traction.

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2 PREPARING THE CHASSIS
We ——
Thread antenna wire through the tubing.( Do not cut or shorten antenna wire!)
3 DRIVER FIGURE
а | а
а. Thread velcro tape through the holes beside the driver's seat. Select upper holes or lower holes as you wish.
b. Put the driver into the seat and then fasten the velcro tape around the driver.
4 RADIO BATTERY INSTALLATION
a. Install 8 AA-size batteries into transmitter.
b. Put the battery pack inside the battery box and connect the battery to the ESC.
Caution: Check all the wirings and connections before you connect the speed control to a drive battery. Incorrect
polarity will damage your speed control.
RADIO OPERATION
а. When turning your system on, ALWAYS turn on the transmitter FIRST. Then, turn on the receiver.
b. When turning off, ALWAYS turn the receiver off FIRST, then the transmitter.
4

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The ACE RC Cougar PS3 2.4GHz Radio System
AceRC, COUGAR o
ка;
@ Transmitter Antenna Ө Throttle Trim QD Steering Wheel
© Battery Level Indicator Ө Steering D/ R (Dual Rates) QD Power Switch
Ө HI/LO Throttle ATV (Adjustable Travel Volume) Ө AUX Ch Button Ф Throttle Trigger
Ө Servo reversing switches © External Charging Jack ® Steering Tension Adjustment
Q Steering Trim Ф 2.4GHz binding SW Ф Battery Cover

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TRANSMITTER CONTROLS
1. Transmitter Antenna: Straighten up the antenna before operating the model.
2. Battery Level Indicator: Three LEDs indicate the battery voltage level. If the Red LED
flashes, please replace the batteries.
3. HI/LO Throttle ATV (Adjustable Travel Volume): Provides the function to let you
independently preset the maximum travel of the throttle servo either side (high / low) of
neutral.
4. Servo reversing switches: To reverse the servo's rotation direction at the flip of the
Switch. The reversing switches are recessed into the transmitter to prevent accidental
operation.
5. Steering Trim: Adjusts the steering in small increments or decrements to run the model
straight.
6. Throttle Trim: Adjusts the throttle in small increments or decrements to shift the neutral
position.
7. Steering DIR (Dual Rates): Push this lever left or right to adjust the amount of the steering
dual rate. Right to increase dual rate amount and left to decrease the amount.
8. AUX Ch Button: Provides an extra function for the control of the model.
9. External Charging Jack: For rechargeable NiCd/NiHM battery pack on the transmitter
only.
10. 2.4GHz binding SW: The Binding SW button is located on the back of the 2.4GHz
transmitter. For additional details, please refer to the "Binding" setting procedure (Page 7).
11. Steering Wheel: Controls the steering of the model.
12. Power Switch: Sliding to turn the transmitter on or off.
13. Throttle Trigger: pulled or pushed to control the movement of the model.
14. Steering Tension Adjustment: Use a Phillip type screwdriver to tighten or loosen the
tension of the steering wheel.
15. Battery Cover: Slide cover to install or remove batteries.

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BINDING PROCESS
A binding feature is included in the ACE RC Cougar 2.4GHz spread spectrum system to ensure the transmitter
and receiver bind properly and prevent interference from other controllers.
To manually bind Tx/Rx, please proceed as per the following steps:
a. Press and hold the “Binding SW" button on the back side of the transmitter while turning on the transmitter.
b. Release the “Binding SW" button after the green LED flashes indicating the transmitter is binding.
C. Press and hold the bind button on the receiver while turning on the receiver. Binding process will then start
automatically. The LED will turn green/reed flash on the receiver.
d. Release the "Binding SW' button. Successful binding is confirmed by the binding LED changing from a quick
blinking and then remain solid on the transmitter. The LED will turn green on the receiver. Once binding is
complete, the system will automatically connect.
Note: Binding process may take 3~10 seconds to execute. If binding fails, the LED on the receiver will
turn red. Please turn off the power and repeat the steps from a) ~d).
Step TX Action RX Action
LED
Swithch On / Push
No Action
No Action
LED: RED.
No Action
LED: GREEN
d No Action [ н
аны ез» |
\
TX LED : GREEN FLASH
RX LED : GREEN/RED FLASH
TX LED:
GREEN FLASH->GREEN SOLID
RX LED :
RED SOLID-->GREEN SOLID

FAIL SAFE (F/S) FUNCTION SETTING
ACE RC COUGAR 2.4GHz RIC system features a built-in Failsafe function to
automatically set a servo command if the receiver loses the signal from transmitter due
to interference. For safety, we strongly recommend to active the FAILSAFE function on
your Cougar R/C system.
Setting up the Failsafe (F/S) Function:
a. After binding the transmitter and receiver, you can continually set up the F/S function. Turn on the transmitter
power and then receiver power.
b. Press and hold the "Binding SW" button on the receiver for 10 seconds. The LED will start flashing GREEN on
the receiver.
ДУ CAUTION: Do not release the "Binding SW’ button оп the receiver until STEP C is completed.
c. Move and hold the throttle trigger to the position you want the control to be in if a failsafe condition should
occur, First, keep steering wheel at neutral position | steering servo at neutral position) . To set up F/S
function with the throttle servo position at "Brake", first push the trigger to the brake position and hold. To set
up F/S function with servo position at "Neutral", keep the trigger at neutral position
NOTE:
Always set the throttle trigger to neutral or full brake position and steering servo to neutral position in
case of any unexpected control error!
Factory pre-settings for RC car F/S function are :
Wil Electric Car- Steering servo at neutral, throttle at neutral.
W Nitro Car- Steering servo at neutral, throttle at iddle.
d. After the Step C, release the "Binding SW" button on the receiver first and then the throttle trigger. The LED
turns to solid "RED" and then back to solid "GREEN" indicating the F/S function has now been activated.
e. Test by turning off your transmitter and watching the servo failsafe position activate.
F/S at "Neutral": To check the fail safe is working properly, by moving the throttle trigger to the full forward
(full brake), hold this position and then turn off the transmitter. The F/S function should move the throttle servo
to "Neutral" position and the steering servo to "Neutral" position.
FIS at "Brake": To check the fail safe is working properly, by keeping the throttle trigger at neutral and then
turn off the transmitter. The F/S function should move the throttle servo to "Brake" position and the steering
servo to "Neutral" position
f. If the F/S function fails or need to change the F/S hold position, repeat the steps a) ~e). After the F/S is
completed, you can start normal operation.
A CAUTION:
ALWAYS reset FAILSAFE function after binding your transmitter & receiver.

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FAIL SAFE (F/S) FUNCTION SETTING
Step
TX Action
Binding Complete
No Action
RX Action
Binding Complete
Push for 10
sceonds у
l awnen on бав.
1. Steering:Neutral — 0;
2. Keep brake or keep 7
trigger at neutral
Release later
No Action
Releaso first
LESS
Check
TX LED : GREEN SOLID
RX LED : GREEN SOLID
RX LED : GREEN FLASH
Pre-settings for F/S
function:
WEP Car
Steering at Neutral /
ESC at Neutral
MGP Car
Steering at Neutral /
Carb. at Iddle
RX LED: RED SOLID-2s-
>GREEN SOLID
1. Keep brake
2. Swithch Off
No Action
F/S function activates
OK!

а. Check the radio steering functions. With the radio transmitter and receiver on, turn the steering wheel/stick to the left. The
front tires/wheels should turn left accordingly. If not, flip the steering servo reverse switch.
b. Return the steering wheel/stick to neutral. The front tires/wheels should point straight forward. If not, use the steering trim
lever to correct it.
c. Turn the steering wheel to the right. The front tires/wheels should turn right accordingly
MAINTENANCE AFTER RUNNING
a. Always turn off the radio system and disconnect the battery pack when the car is not in use.
b. Remove the sand, mud, dirt, and any other elements completely from the car before you store it.
с. Never use chemicals or any solvents to clean the chassis as it may cause damage to the electronics components and plastic
parts as well. Use compressed air, soft paintbrush, or toothbrush to clean dust and dirt.
BEFORE OPERATING
For best operating range, always ensure the largest section of your transmitter antenna faces the model.
Warning! Operating range may be significantly reduced with the transmitter antenna
A pointing directly at the model!
IS NN
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10

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DRIVING TIPS
b. Squeeze the throttle trigger or pull the
throttle stick gently and steer the car
с. Squeeze the throttle trigger and
release. Repeat this action to control
car speed.
a. Hold your elbows in and keep the
transmitter antenna pointing straight
to left and right.
S ik
Ку,
BI)
v
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f. Be careful not to squeeze the throttle d. If you are of unsure of the steering е. At first, set the steering D/R function
direction, practice with the transmitter for less steering response. trigger abruptly while steering.
facing towards you.
h. Practice doing figure 8's.
g. After you become used to the controls, experiment with high
performance at full throttle and full steering.
11

TROUBLESHOOTING
If you have trouble starting or keeping your KT8 RACING KART running, here's a quick checklist
of what to look for first.
Description Problem Solution
Car stops or slows
Car is glitching
Motor is overheats
No power
No throttle.
No steering
Reversing
Speed control over heats
Car has a problem on power
Gear mesh is too tight
Battery is discharged
Battery not plugged in
Motor not plugged in
Motor failure
Motor keeps running
Servo not plugged in
Locked up steering linkage
Servo failure
Goes backwards when you pull the
trigger or goes right when turning the
wheel left
Let it cool and try later
Check motor capacitors, losse wires or crystals.
Let motor cool and check recommended gearing for motor type.
Reset gear mesh.
Charge battery
Plug in battery
Plug motor in
Replace motor
Check if the throttle trim knob is in neutral position.
Plug servo into ESC unit
Free up steering linkage
Replace servo
Check throttle / steering reversing switches on transmitter
12

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Tiger
© 20 1 0 Manufactured by THUNDER TIGER CORPORATION
http://www.thundertiger.com [25730802]