Dapol Terrier A1 LSWR Green Tank Engine DCC Conversion

Mistakes may damage your locomotive, controller or other accessories. Use a multimeter to make absolutely sure you have completely isolated the motor from the track before testing. Always use the Programming Track for testing. Our guides are provided for reference only, and you proceed entirely at your own risk. Unsure about something - try our DCC Conversion Service instead.

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This conversion is the same for the following Dapol Terrier A1 variants:

• Dapol Terrier A1 LSWR Green (2S-012-012)

Step 1 - Remove body

Gently unclip the body from the chassis. On each side, there is a clip around the mid-point, and another at the cab end.

Step 2 - Remove motor

Gently unclip the motor housing from the chassis. Some examples may be glued on, so to separate the two parts you will need to carefully cut the legs and glue them back on later. Remove the motor.

Step 3 - Fit Decoder

Add a piece of tape to the weight at the back of the cab so the decoder cannot touch the metal part. Secure the decoder with some double sided sticky pads or black tack. The decoder needs to be quite far up towards the cab roof, even with very small decoders such as the ESU LokPilot 5 Micro, it will be partially visible.

Step 4 - Connect Track Pickups

Remove the wires from the motor, wheel contacts and the small PCB that contains two resistors. Solder the red and black wires from the decoder to the wheel contacts, making sure not to leave excess wire as there isn't much room for it.

Step 5 - Connect Motor

Solder the grey and orange wires to the motor. Put a piece of tape on the bottom of the motor to prevent the motor contacts from touching the wheel contacts.

Put the motor back into its housing, and clip it back into the chassis, being careful not to bend anything as the plastic is very flimsy. Add a small dot of superglue to the housing legs if it does not stay secure when clipped in - any movement will allow the worm gear to move away from the plastic cogs, which is not a good thing.

Step 6 - Test

Before replacing the body, put the loco on your test track and try reading the loco ID. If all is well, clip the body back onto the chassis, and the conversion is complete.

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