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Class 4 article
LEGO → System → Trains → 12V
7864 << 7865 >> 7866 284px-LEGO logo.svg

7865 Motor Replacement Unit for Battery or Motor-Less Trains 12V is a Trains set released in 1980.

The motor module was manufactured by Bühler Motor on behalf of Lego.

Description[]

The unit incorporates six wheels, with the four outboard wheels being driven by the motor through a worm wheel drive. Power is collected from the conductor rails through spring loaded copper pick-up shoes - two at either end to allow the train to negotiate points without power interruption.

A power-take off socket exists at both ends to allow the unit to power on-train lights.

Mechanical Issues[]

After heavy use, the nylon worm gear inside the motor can wear out.

Gallery[]

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