Replacing the Steering Servo
1. Unplug all wires, remove receiver crystal and 4 screws pictured in Figure 1. (Be sure to note
the locations of all screws and sizes.)
2. Remove the 2 screws pictured in Figure 2. and place the PC board to the side.
3. Remove the 4 screws pictured in Figure 3. Remove the servo cover.
4. Slide the servo out from the chassis as shown in Figure 4.
5. Replace with new servo and be sure to place the tip of the servo saver into the slot of the
steering bellcrank.
6. Reverse instruction order to complete servo installation.
Troubleshooting Guide
Doesn’t operate:
Battery not charged or no crystal in receiver or no crystal in transmitter or
receiver switch not “on” or transmitter not “on” or low battery.
Motor runs but rear wheels don’t move:
Pinion not meshing with spur gear or pinion spinning
on motor shaft or slipper too loose or transmission gears stripped.
Steering doesn’t work:
Servo plug not in receiver or servo gears or motor damaged.
Won’t turn in direction:
Servo gears damaged.
Motor doesn’t run:
Motor plugs loose or motor wire broken or ESC damaged.
ESC gets hot:
Motor over-geared or driveline bound up.
Poor run time and/or sluggish acceleration:
Batteries low or charger batteries low (not allow
-
ing for full charge) or slipper slipping too much or motor worn out or driveline bound up or wheel
and axle bushings worn.
Poor range/glitching: Transmitter batteries low or transmitter antenna loose or battery low in
the Micro vehicle or loose plugs or wires.
Slipper won’t adjust: Slipper adjustment nut worn out or spur gear face worn down.
Wheels wobble/shake: Bushing worn out.
Battery does not charge:
Charger batteries low.
6
Figure 1.
Figure 2.
Figure 3.
Figure 4.
