LAEGENDARY THUNDER - Troubleshooting Mechanical Issues; Gear Mesh and Steering Noises; Vehicle Movement and Steering Failures; Drive System and Wiring Faults

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Troubleshooting
POSSIBLE SOLUTION
PROBLEM POSSIBLE CAUSE
Grinding sound.
Clicking noise while
steering.
Vehicle won't steer
or move.
Vehicle turns to the
side automatically.
Vehicle steers to the
left when you steer to
the right.
After power on, motor
can’t work, no sound is
emitted.
The car is driving 2WD
only
1. Gear mesh too loose.
2. Gears worn.
1. Servo gears stripped.
2. Servo horn stripped.
1. Battery pack not charged
2. Battery wires loose.
3. Did not follow proper
start-up instructions.
1. Steering trim needs
adjusting.
2. Steering servo horn needs
realigning or replaced.
3. Servo gears stripped.
4. Too much toe-out in front
wheels.
1. Steering reverse switch
(on transmitter) is set
incorrectly.
2. You are driving towards
yourself and it just seems like
it's backwards.
The connections between
battery pack and ESC are
not correct.
1. The Slipper and/or Main
Drive Shaft is broken
2. The dierential spur gear
and drive gear are stripped.
1. Reset gear mesh.
2. Replace gears.
1. Replace servo.
2. Replace servo horn.
1. Charge battery pack.
2. Plug in battery securely.
3. Follow Quick Start Guide
for proper start-up sequence.
1. Adjust transmitter steering
trim.
2. Check servo horn, replace if
worn or stripped.
3. Replace servo
4. Adjust steering linkage to
lessen toe amount.
1. Flip the steering reverse
switch (on transmitter).
2. Practice driving the vehicle
to get used to steering with
dierent vehicle orientations.
When driving towards yourself,
it just seems like the steering
is backwards.
Check the power connections.
Replace the connectors.
1.Check and make sure that
the set screw TH-1014 on the
slipper cup is tight.
2. Check if the main drive shaft
is in good condition and the
small pins are not missing.
3. Check if the dierential spur
gear and drive gear are
stripped, replace if needed.