MF150 guages not working

bubbanm · Aug 10, 2016

I just bought a MF150 that had been sitting in a barn for several years. I replaced the battery and altenator. She is running great but I noticed none of my guages are working. Any ideas what I can check to get them working?
Thanks in advance

Dieseltech · Aug 10, 2016

The oil pressure and water temp are mechanical, the ammeter and fuel gauges are electrical. Now if you are talking about the gauge back light system that had the Wico transformer system that's no longer available. Looked really good when it did work though..

bubbanm · Aug 11, 2016

Actually none of the guages are working. Lets start with the ammeter and fuel guage. Where should I start to get those working again?

Tom from Buckeye Lake · Aug 11, 2016

Check my post of 8/08/16 below in response to TnFeDad "Massey Ferg. 150 wiring diagram" question. He didn't respond

so, don't know if he understood it.

blue water massey · Aug 11, 2016

if it's like my MF 20 on the oil pressure gauge there is a pressure senceing switch once the oil pressure builds up it turns on the electricity to the feul gauge and excites the alt to get it going
if your temp gauge was swapped out for an electric one it would turn that on as well
it sorta looks like a rectangle box with two wires and a pipe nipple off the bottom
one wire should have battery voltage without the tractor running
good luck

MF150 guages not working

bubbanm

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Dieseltech

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bubbanm

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Tom from Buckeye Lake

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blue water massey

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