John Deere 7700 - The Combine Forum
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post #1 of 27 (permalink) Old 08-26-2007, 08:03 PM Thread Starter
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John Deere 7700

I am in need of some info on the John Deere 7700 combine. I need to know info on the earlier model 7700s, the ones with the yellow seats. Like updates from early to late model combines. I know they changed the cab? I know nothing about Deere combines so bear with me. Pictures would be greatly appriciated!
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post #2 of 27 (permalink) Old 08-27-2007, 06:10 PM
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Re: John Deere 7700

Not clear on what you are wanting to know
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post #3 of 27 (permalink) Old 08-27-2007, 10:45 PM
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Re: John Deere 7700

Okay, the Model 7700 was produced from 1970 through 1978. Some specs evade me, such as engines. I know the first few years saw gasoline powered engines, but at least by 1975, the 7700 was diesel-only. Diesel or gas were opted on the other models for most of their history.

Cabs changed a little in 1973 or 1974. A long extension or visor was added to the front of the cab that year. That visor only lasted 2 years. Other than that, the cabs were the same style. The seats were all yellow vinyl. The brown fabric seats did not come out until later on with the Titans.

The front engine cover of the 7700 was changed in 1974 from the vertical ribbed grille to the more stylish solid cover, with the ventilation at the bottom of the engine deck. Also, the new rotary screen was added. These were really very pretty combines in their day, too. In 1975, a guard rail across front of engine deck was mounted. That first year, the platform to stand on, was the fold-down bottom "lip" of engine compartment. By 1976, there was a regular catwalk in place, not related to the lower portion of engine cover.

I know of more improvements and minor style changes, but just can't think of all of them and the years each came out, but overall, the John Deere 7700 cut, threshed and separated its way right into my own heart, making it one of my all-time favorites, a classic of the 1970's, and a combine worthy to this day of protecting and preserving, should a fine one be found.
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post #4 of 27 (permalink) Old 08-28-2007, 06:45 AM
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Re: John Deere 7700

I agree with Combiness !

http://www.combineforums.proboards42.com....ge=1#11865824 73
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post #5 of 27 (permalink) Old 08-28-2007, 05:18 PM
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Re: John Deere 7700

The early ones had suicide left cab doors. Or atleast the 6600 I have has one.
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post #6 of 27 (permalink) Old 08-28-2007, 05:57 PM
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Re: John Deere 7700

I really liked the RH cab door feature--a real first for any combine.
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post #7 of 27 (permalink) Old 08-30-2007, 04:42 PM Thread Starter
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Re: John Deere 7700

Thank you! That is exactly the info that I wanted!
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post #8 of 27 (permalink) Old 08-30-2007, 10:14 PM
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Re: John Deere 7700

I have an old 74 7700 Turbo, which I retired a few years ago, and it has the brown or gray fabric seat, which ever. Most trouble free combine I have ever owned. Axial flow is easier to adjust for clean sample, and nicer to run, and a lot of the sheet metal is heavier, or thicker, but the old 7700 was a very reliable machine, at least for me. Combiness is right. They were a keeper.
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post #9 of 27 (permalink) Old 08-30-2007, 10:28 PM
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Re: John Deere 7700

Thank you, Ridgerunner. I'm willing to bet that seat was an add on, even if by the dealer, because I've run 7700's made from 1973 and up, but not all consecutive years. I've still not found one yet, that did not have the short-backed yellow vinyl seat, though.

Where are you located? I sure hope your dear old 7700 stays in a shed or barn.
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post #10 of 27 (permalink) Old 08-31-2007, 09:49 AM
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Re: John Deere 7700

Must be a "out west" thing on the seats. All of the newer 00 combines here in Indiana had cloth seats with side arms that could be moved up and down.
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