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OT Analogue tachographs (Kienzle?)

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frank brown22/01/2016 08:30:30
436 forum posts
5 photos

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

John Haine22/01/2016 08:57:33
5563 forum posts
322 photos

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

Speedy Builder522/01/2016 09:01:52
2878 forum posts
248 photos

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

Chris Evans 622/01/2016 09:28:24
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2156 forum posts

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

Watford22/01/2016 11:36:09
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142 forum posts
11 photos
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 brown22/01/2016 21:36:25
436 forum posts
5 photos

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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