1086 digital tach

don rush · Nov 19, 2011

Tach stopped working. Sent to be repaired. After repairing reinstalled and it worked fine for about 15 min. I called the co. that repaired was told they only replaced some defective bulbs other than that it worked fine. Have power to the unit. Any suggestions?

Janicholson · Nov 19, 2011

If the repair was as cheap as a couple bulbs, then they were reasonable. If it was a pricey deal, they need to fix it, or estimate what it will cost to do so. I would not blame them, thousands of devices begin working immediately upon being threatened with a competent repair technician. Jim

Janicholson · Nov 19, 2011

ANother place to look is the signal wiring on the tractor. If the tach is in fact working, but when the wires were wiggled when putting it back in they made temporary contact, but opened up again then it is your issue. Check the wiring first! Jim

Allan in NE · Nov 19, 2011

Like Jim says,

Wiring or speed sensor.

Allan

JimB2 · Nov 19, 2011

Hi Don,
Check for proper grounding. Bad grounds can cause all sorts of wacky problems. Sometimes the ground is supplied by connecting a wire to the tractor frame or sheet metal and the connection will eventually become corroded causing a poor connection.

Good luck
JimB

IaGary · Nov 19, 2011

Last time mine quit I had to replace the key switch.

But you say you have power to yours.

First time it quit, it was the speed sensor.

Gary

pete 23 · Nov 19, 2011

Remember, you have two power sources on those data centers. One is through key, other is through that inline fuse down by the other fuses and even a dirty connection there can give you all kinds of problems plus the ground connection at the cab mount. Don't remember which pin is second power but it is approx number 12.

1086 digital tach

don rush

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Janicholson

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Janicholson

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Allan in NE

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JimB2

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IaGary

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pete 23

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