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Kato GG1:
K1D4 Decoder Installation
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Installation performed by G.B.

First remove the shell.

Next remove the cover of the lighting board.

Next remove the lighting board.

Now remove the motor clips from the lighting board.

This is the K1D4 which is designed for the GG1. Please note that it has surface mount LED's, and does not have motor clips.

Next attach the motor clips from the lighting board to the K1D4 as shown above.

Now slide the decoder back in the way that you removed the lighting board.

Now reattach the lighting board cover.

Finally place the shell back on and run your locomotive.