Zeroing an engine hours clock.

[Matrosen]

Ive just re-engined my boat and would like to zero the engines hours clock/meter. Before I pull out the instrument panel to see what's at the back, does anyone know if it's possible?
The clock is a Jaeger.

 

[Anchorite]

Only 2 connections on the back of mine (Jaeger): pos and neg. No visible means of zeroing (and presumably intended to be tamper-free).

 

[ShipsWoofy]

EDIT, with mine to stop confusion.


there are two types available, one has the extra pin making 4. You should have, +12v, -ve, +12v feed (from key switch to start counting) and the extra pin, to zero. if no extra pin, then I don't think you can do it. If you have an extra pin do insulate it if it is not already, I knocked 140hrs to zero on mine with a slip of a screwdriver, most upsetting!

hope this helps.

 

[Matrosen]

Thanks all. Looks like I need to open the system and look at the at the set up and probably get at new clock. Afterwards, open up the old one and discover that I could have changed it!!!

 

[tangofour]

you could always leave it connected to a battery for about 11.5 years ( if its a 5 digit counter )
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