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72 4000 trans temp gauge


 
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FFF
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Joined: 07 Aug 2010
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PostPosted: Thu Jan 10, 2013 4:15 pm    Post subject: 72 4000 trans temp gauge Reply to specific post Reply with quote

I bought a 72 4000 synchro and someone changed the trans temp gauge to an oil pressure gauge. I bought a new gauge but I can't find where the sensor goes. I have looked in the service manual and didn't have any luck. Any body know where it goes? Many thanks.
 
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jddave
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PostPosted: Thu Jan 10, 2013 5:20 pm    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

There was not trans temp gauge on a synchro trans tractor. That hole in the dash should have a blank cover plug in it.
 
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Mike Aylward
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PostPosted: Thu Jan 10, 2013 6:04 pm    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

There most certainly is a transmission temperature gauge in a tractor of that vintage. My 1971 4020 Syncro-Range has always had one. I believe they were added due to the growing acceptance of applications like hydraulic motors where heat was generated and needed to be monitored. Mike
 
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Raltn
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PostPosted: Thu Jan 10, 2013 6:06 pm    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

I have a '71 4000 syncro and it doesn't have a trans temp gage. I think the 4020's had them. I had a '72 4020 and I think it had one.
 
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FFF
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PostPosted: Thu Jan 10, 2013 6:15 pm    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

You guys are great, thank you for the responses. The dash has a sticker that says trans temp where the after market oil gauge is and given the rest of the tractor I think it is the original dash. I still don't know the sensor goes so if anyone has an idea it would be great to hear it.
 
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2520-4010
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PostPosted: Thu Jan 10, 2013 6:22 pm    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote


I had a 4000 at one time and IIRC, it didn"t have a trans temp gauge, just a cover where it would go if it had been a 4020.
 
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tomstractorsandtoys1
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PostPosted: Thu Jan 10, 2013 6:47 pm    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

Look under your left hand battery box and you will more than likely see the remains of you old one sticking out.It should go into one of the hyd. fittings in that area.Atleast our 4620 did.In all the new generation tractors that I have run I have never seen one of these guages move off cold.Maybe a powershift tractor or use with a hyd. motor? Has anyone else ever seen one that moved?
 
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2520-4010
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PostPosted: Thu Jan 10, 2013 8:07 pm    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote


We had a 4320 syncro that would run up to the redline. I always suspected it had a valve leaking somewhere....it had a cab and the floor would get so hot we had a block sitting in the floor to sit out feet on. It ran that way til the day we traded it for a 4430.
 
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jd 40203020
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PostPosted: Thu Jan 10, 2013 9:23 pm    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

I have a '72 3020 Synchro and it has a factory trans temp gauge. The sensor is located under the left hand battery box as Fff stated. The only time I have seen the guage move is when we do heavy loader work, or run a hydraulic log splitter. Now granted it takes a few people to move the blocks fast enought to raise the temp enough but I have seen it move. Good Luck!
 
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larryanderson
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PostPosted: Thu Jan 10, 2013 10:47 pm    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

I looked at our 72 4000 and no trans temp guage.one of the ways they made them 10% cheaper.The open battery boxes are about impossible to find,and cost more than full coverage when you do.Lack of rockshaft covers make them look like something is missing which it is.Just a couple things that make them different and somewhat adds to their appeal.
 
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Tx Jim
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PostPosted: Fri Jan 11, 2013 3:45 am    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

According to parts catalog there's "No Sensor" for hyd oil temp gauge parts key #9 AR46979 PYROMETER TRANSMISSION OIL. Also according to the parts catalog a 4000 requires these 2 plugs with inst. panel but doesn't state where they fit in instrument panel. One plug is 0.375 IN diameter and the other plug is 1.380 IN dia.(part #M61266) Parts catalog also lists 2 different inst panels with a SN break.

AR68199 INSTRUMENT PANEL 1 - 250000 (ALSO ORDER T16738) (SUB FOR R41705 OR R46520) (SUB R56320)
AR51160 INSTRUMENT PANEL 1 250001 - (SUB R56320)

 


Last edited by Tx Jim on Fri Jan 11, 2013 3:49 am; edited 1 time in total
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JDBert
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PostPosted: Fri Jan 11, 2013 6:15 am    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

I have a 71' 4000 in for a restoration now. Orginal one owner- the transmission temp hole is blocked off.
 
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johndeerefan
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Location: Greenville, KY

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PostPosted: Fri Jan 11, 2013 6:22 am    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

Larry you can still get those battery trays from Mother Deere, but at the tune of over $75 each. I need to pony up and order them. Mine are almost rusted out.
 
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M w J
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PostPosted: Sat Jan 12, 2013 6:13 pm    Post subject: Re: 72 4000 trans temp gauge Reply to specific post Reply with quote

The two plugs for the dash on a 4000. 1 is for the
trans. temp gauge hole if the dash was on a 4020.
The other plug is for the tach dial hole a 4020 has
a dial to set for the gear you run in and shows MPH
On a 4000 the needle of the tach is centered 1 side
shows RPM the bottom side shows Mph with all 8
gears on the face of the tach.
 
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