IH 684

Hi, does anybody have a 684 in a 100 or so mile radius of Kearney Nebraska and in good shape relatively. Bought kind of a basket case (cheap) but it runs real nice. Just want to get a look at something that is put together right, compare and maybe ask some questions. Thank you

Hi, I am no where near Nebraska but maybe I can help but I did see Nebraska from an aircraft in Oct.
What is it that you require info on?

JimB

Hey thanks for the response... My main thing right now is figuring out the transmission, no stickers left, not really sure where or what gear it's in, not really sure that the linkages are right. I ordered a manual to help but I am kind of a visual person in figuring things out. If it was a letter series(m h a b c etc) that's second nature but this new fangled tractor, lol, just a little more to them.

Hi, the transmission shift pattern determines if it is an early or late model 684. Both models have two transmissions a 4 speed, speed transmission and range transmission with Rev/Lo/Hi with one lever for each transmission. The only difference is the shift patterns. This gives 8F and 4Rev speeds as every speed transmission gear has Rev, Low and High speeds. The older models use a linear shift pattern. Speed transmission lever is 1-2-3-4 with 1 being at the rear with notches in the sheet metal guide. The range transmission is Rev at rear Neutral and Low straight down, High is down and towards the drivers seat.
Newer shift pattern for speed transmission is H pattern with 1-3 at rear and 2-4 forward, Range transmission long lever is Rev to the rear, Neutral middle, Low straight forward, High to drivers seat and forward.
There also maybe a T/A on the dash on left of steering column, looks like throttle control lever, forward is High (Direct Drive), towards drivers seat is Low. The T/A gives a shift on the go for every gear giving 16F and 8Rev speeds.
Caution DO NOT pull T/A into Low will going down hill with a load behind tractor, also DO NOT pull T/A into Low while in 3rd or 4th High range with heavy load behind tractor. Shift T/A rapidly.

Hope this helps
JimB
74 84 Series IH History

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74 84 Series IH History

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I had forgotten about that...almost 12 years ago. Wow.

Yeah, had to be careful going between 786 and 684. Reverse on the 84's is where low is on the 86's.