OT Analogue tachographs (Kienzle?)

[frank brownParticipant @frankbrown22225]

I was helping my mate replace the tacho cable on a vintage coach. After we did this we took it out for a spin and the odometer was clocking up the distance but the speed indicator was not working. We opened it up and there was a white slider which we moved to the other position. After this the speedo worked. I can't think why the speedo would have an option to turn it off. Any thoughts. ?

Frank

[frank brownParticipant @frankbrown22225]

[John HaineParticipant @johnhaine32865]

National market option for countries that don't require speed recording?

[Speedy Builder5Participant @speedybuilder5]

MOT – what would the tester say if the mechanical speedo read 30 Mph and the Tacho 40 Mph ??

[Chris Evans 6Participant @chrisevans6]

Google Mr Tachograph and ask him, this guy knows all about them and worked for Kienzle.

[WatfordParticipant @watford]

Posted by Speedy Builder5 on 22/01/2016 09:01:52:

MOT – what would the tester say if the mechanical speedo read 30 Mph and the Tacho 40 Mph ??

He would probably say that you have a seriously bad case of clutch slip.

Mike

[frank brownParticipant @frankbrown22225]

Oh no, the disc speed recording worked, we could see the pointers(pens? pencils?) that record the speed move out from the centre as we went really fast (25 MPH). Just had a thought, I wonder if its an interlock, so when there is no disc fitted the "speedo" bit does not work. Wonder why you can manually over ride it.

Frank

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