Last Updated: 11 June 2023

Graham Farish Class 5MT 'Crab' 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.

This conversion follows the Graham Farish insulating bush (Digihat) method to isolate the lower motor connection from the chassis. The best place to fit the decoder is in the tender. The tender also has track pickups, via a single black wire and the brass connecting bar between the tender and the loco. Be careful to make sure the metal parts inside the tender are isolated and cannot contact any part of the decoder, or any exposed bare wire ends.

Models covered by this guide include:

  • 5MT 'Crab' 42806 in BR Black (1855)
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Coreless Upgrade

Graham Farish Class 5MT Black Five coreless motor upgrade

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