7
ESC TROUBLESHOOTING GUIDE:
IF YOUR ESC DOES NOT WORK
Problem: Motor and/or steering servo are dead.
➤
Recharge dead batteries.
➤
Check for faulty power connections.
➤
Check for a damaged connection between ESC and Rx.
➤
Internal damage. Unit may require service. See “Repair
Service” on page 3.
ESC WORKS BUT OTHER PROBLEMS EXIST
Problem: Steering servo works but motor is dead.
➤
Motor brushes are dirty or the motor is bad. Clean with a
motor spray (such as Duratrax Power Shot
™
, DTXC2458)
and re-oil the bushings or replace the motor.
➤
Check for faulty motor connections.
➤
Battery not fully charged.
Problem: Overheated motor or hot power plugs.
➤
Motor is geared too high. Change to a lower gear setup.
➤
Binding in the vehicle’s drivetrain. Check to make sure
nothing is interfering with the model’s drivetrain.
Problem: Motor runs backwards but forward LEDs are on.
➤
Motor is wired backwards. Swap the motor wires.
Problem: Motor runs backwards and the reverse LED is
on when forward command is given.
➤
Move the Tx throttle reversing switch to the opposite position,
and reset ESC.
Problem: Model runs properly, then motor goes dead.
➤
The built-in thermal protection may be automatically
shutting down the ESC due to overheating conditions.
Check for binding drivetrain, bad motor or incorrect gear
ratio. Adjust gear mesh, replace motor or change gear
ratio. Allow the ESC to cool and try again.
MAINTENANCE TIPS:
Before Each Run
1. Check to make sure that all screws are tight and there are
not any screws missing.
2. Check to make sure that the transmitter batteries are not low.
3. Check to make sure that all of the moving parts move
freely and do not bind.
4. Check for broken or damaged parts. Replace any broken
or damaged parts before using. Running the Baja Bug
with broken or damaged parts could result in damage to
other parts.
5. Check to make sure that the receiver and speed control
are still properly secured to the chassis.
6. Check to make sure that all wires are properly connected.
7.
IMPORTANT!
Check the slipper clutch setting. The VW
Baja Bug transmission is equipped with a slipper clutch.
When properly adjusted the slipper clutch will help to
extend the life of the transmission by providing a point that
slips when the kit encounters bumps and jolts that would
otherwise transfer strain to the internal gears. Although
there is no perfect setting for every situation, following the
recommended procedure on page 9 will provide a good
starting point. Final adjustments will need to be made with
the kit on the actual surface it will be running on.
After Each Run
1. Clean any large globs of dirt, mud or debris from the
chassis and moving parts.
2. Disconnect and remove the battery.
3. Check for any broken or damaged parts. This way parts
may be replaced before the next run.
After Every 10 Runs
1. Check the servo saver for proper operation by grasping
the servo arm and linkage and turning one of the front
tires left and right. If the wheels turn without moving the
linkages and servo arm, then the unit is operating properly.
If the linkage and servo arm move, loosen the knurled
adjustment nut on the left side servo saver shaft. If the
servo saver becomes clogged with dirt, it may not work
properly which could cause servo or linkage damage.
The servo saver needs to be disassembled, cleaned and
readjusted. To safely adjust the servo saver, loosen the
knurled aluminum collar on the left side steering post
completely. Then reinstall 1-1/2 turns onto the post. Retest
the servo saver as described above. Adjust the servo
saver tighter or looser if needed.
2. Check to make sure that the bearings are free of dirt and
debris and roll smoothly.
3. Check the shocks for oil leakage. If the shocks have leaked
any shock fl uid out, you should properly refi ll the shocks
for best performance.
4. Check for proper gear mesh between the spur gear and
the pinion gear.
TUNING
