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7000 Allis production question

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DougG View Drop Down
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    Posted: 07 Apr 2019 at 1:47pm
Was the 7000 Allis tractor the same thru production as the drivetrain paint colors changed from maroon to black ? Thanks
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post Posted: 07 Apr 2019 at 1:53pm
Nope, black belly went to using the Power Director as the main wet clutch too, maroon used a dry foot clutch. Shifter is different I believe and cab ofcourse. I'm sure there are other minor differences.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 7060 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Apr 2019 at 9:07pm
Wasn’t there an update in the brakes as well?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2019 at 6:30am
Not sure but I know there was an update in the brakes sometime during the 200 production.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2019 at 6:31am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hurst Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2019 at 8:18am
There was an update to the transmission brake to a stronger spring and lever setup due to the additional drag of the wet clutch causing hard shift problems in cold weather.  And that was modified mid-production with the black bellies to an even higher compression rate spring later on through a TSB.  The black belly also had the HD front end as an option (same axle as the 7010-8070).  Additionally, there was a change to the ac condenser and I believe transmission cooler with the changeover.  Because the powershift/power director clutch acted as the wet clutch, the PTO valve was moved to an external valve from the valve plate on the side of the transmission housing.  That valve was utilized as the inching valve for the clutch.  Otherwise, I think everything has been covered on here.  Those are most of the things I have run into.

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1979 Allis Chalmers 7000
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Post Options Post Options   Thanks (0) Thanks(0)   Quote allisrutledge Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2019 at 8:42am
Didn't the hyd pump get relocated on the black ones
Allis Chalmers still exist in my mind and barns
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2019 at 9:05am
Originally posted by allisrutledge allisrutledge wrote:

Didn't the hyd pump get relocated on the black ones
Not on the 7000, still open system mounted on engine like a 190
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Kevin in WA Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2019 at 9:44am
The HD front axle was available on maroon belly tractors also, I know of several with that option.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote allisrutledge Quote  Post ReplyReply Direct Link To This Post Posted: 08 Apr 2019 at 11:04am
Guess I was thinking about 7010
Allis Chalmers still exist in my mind and barns
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DougG Quote  Post ReplyReply Direct Link To This Post Posted: 12 Apr 2019 at 5:44pm
Ok so a black powertrain color 7000 has the Power Director and not the 3 speed p owershift thing,? Correct ? I'd really like the Power Director option sounds like the other option gets real expensive to rebuild!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 12 Apr 2019 at 5:51pm
The model 7000 tractor was always and only available as (what was called) a POWER SHIFT version. It was never a 6-speed PST transmission like the larger tractors. It was a Low-Direct-Overdrive wet clutch located where the Power Director clutch was on a 180-190-200. The transmission was a 4-speed with a Park feature. Brown tractors used a dry foot clutch. Black tractors had the Power Shift wet clutch slightly redesigned to always start in LOW range, eliminating the need for the dry type foot clutch.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tbran Quote  Post ReplyReply Direct Link To This Post Posted: 13 Apr 2019 at 9:23pm
THE MAROON UNITS had a weak spot in the dry clutch - throw out brg.  It did not fare well in big round baler usage.  The fix - a wet clutch was actually a cost reduction - other than the engineering cost. 

When told "it's not the money,it's the principle", remember, it's always the money..
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lonn Quote  Post ReplyReply Direct Link To This Post Posted: 14 Apr 2019 at 9:30am
Originally posted by DougG DougG wrote:

Ok so a black powertrain color 7000 has the Power Director and not the 3 speed p owershift thing,? Correct ? I'd really like the Power Director option sounds like the other option gets real expensive to rebuild!
My fault for referring to the Power Shift as the Power Director. Allis redesigned the Power Director by eliminating the neutral and adding a third clutch pack to give what was known as the two speed Power Director a third speed and called it a Power Shift. To me they are both technically power shifts if they shift on the go, under load.
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