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Check motor operation by pulling connector and applying 9V with an external power source (battery or bench supply) to the plug. If the motor turns with reversed polarity then proceed by swapping black and red contacts leading to the motor. With a little flathead screwdriver press the contact spring, pull out the cable. If the motor only turns by applying external power and a little twist or not at all, only solution is to replace the motor. Mabuchi RF-500TB-12560 is readily available on the internet.
Swap Motor Contacts
  • Check motor operation by pulling connector and applying 9V with an external power source (battery or bench supply) to the plug.

  • If the motor turns with reversed polarity then proceed by swapping black and red contacts leading to the motor. With a little flathead screwdriver press the contact spring, pull out the cable.

  • If the motor only turns by applying external power and a little twist or not at all, only solution is to replace the motor. Mabuchi RF-500TB-12560 is readily available on the internet.

La conexion con el motor consta de dos cables, uno rojo y el otro negro. Sacar el enchufe. Con un destornillador pequeño presionar hacia abajo el pequeño resorte que se encuentra junto al contacto. De esta forma se puede sacar el cable del enchufe. A continuación se intercambian el rojo y el negro y ya se puede fijar de nuevo el enchufe.

[title] Swap Motor Contacts
-[* black] The black and the red contacts leading to the motor must be swapped. Pull the little plug. With a little screwdriver press the contact spring, pull out the cable.
+[* black] Check motor operation by pulling connector and applying 9V with an external power source (battery or bench supply) to the plug.
+[* black] If the motor turns with reversed polarity then proceed by swapping black and red contacts leading to the motor. With a little flathead screwdriver press the contact spring, pull out the cable.
+[* black] If the motor only turns by applying external power and a little twist or not at all, only solution is to replace the motor. Mabuchi RF-500TB-12560 is readily available on the internet.

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