B2710 tachometer stopped working

[mangoland]

RPMS are stuck at 0 /forums/images/graemlins/frown.gif

Does anyone have a schematic or some tips that can help me trace the tachometer wiring? What sort of sender does it use? I assume it is electrical. All the rest of the electrics are working OK, so I doubt it is a fuse.

Thanks,

Al

 

[ronjhall]

Tachometer is run by a cable. It is not electronic. Check both ends of cable to make sure it is hooked up. You will have to pry up the gages with a screwdriver to get off of dash. Be careful, plastic is easily marked. Cable runs to front of engine. Upper right when looking from front of tractor. You may have a broken inner cable.

 

[mangoland]

Yes, the inner cable snapped. It happened right at a sharp bend next to the instrument, only 101 hrs. Seems like it may not have been right to begin with. Ah well, easy fix.

 

[Junkman]

If it broke after only 101 hours, I would have the dealer replace both the cable and casing. The casing might have a burr inside of it that is causing the problem. If it is under warranty, why settle for anything less than a completely new service part.