Peter Smythe:
could have been trained in a truck with a digi and only had the analogue explained which could easily be forgotten
That’s called grasping at straws! What’s wrong with demonstrating with an old tacho head? Or showing the trainee in a suitably equipped vehicle if one is available.
Hard fact is that the majority of trainers just overlook this minor detail!
Has anyone got a Veeder Root locking ring?, it doubles up a clock key