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7080 Hydraulic Issues
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dieselfumes View Drop Down
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Joined: 12 Apr 2011
Location: kentucky
Points: 11 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dieselfumes Quote  Post ReplyReply Direct Link To This Post Topic: 7080 Hydraulic Issues
    Posted: 06 Aug 2017 at 11:54am
I have a 1980 model 7080 Allis Chalmers.  The hydraulics have been weak since I bought the tractor, but recently, it has gotten worse.  When the tractor is driven up hill, all the hydraulics stop working.  There is no power steering, no brakes and the lift will not work.  The hydraulic fluid and filters have all been changed within the last 100 hours.  Any thoughts on what this might be?
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22369 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 2017 at 1:23pm
If the tractor continues to keep on moving up the hill, it sounds to me like your hydraulic oil level is EXTREMELY LOW ON FLUID, like maybe 12 gallons low on oil.  Now, where are you checking the hydraulic oil level?? 
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dieselfumes View Drop Down
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Joined: 12 Apr 2011
Location: kentucky
Points: 11 		Post Options Post Options   Thanks (0) Thanks(0)   Quote dieselfumes Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 2017 at 10:39pm
Checking the site gauge at the rear of the tractor.  I have actually screwed out the top site gauge and added until oil runs out.  
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MACK View Drop Down
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Joined: 17 Nov 2009
Points: 7664 		Post Options Post Options   Thanks (0) Thanks(0)   Quote MACK Quote  Post ReplyReply Direct Link To This Post Posted: 06 Aug 2017 at 10:57pm
Did you wait for oil to level before you put sight glass back in? Could still be 5 gal. Low. No reason to quit going up hill other than low on oil.   MACK
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shameless dude View Drop Down
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Joined: 10 Apr 2017
Location: east NE
Points: 13607 		Post Options Post Options   Thanks (0) Thanks(0)   Quote shameless dude Quote  Post ReplyReply Direct Link To This Post Posted: 07 Aug 2017 at 1:39am
and have the 3-pt in the down position when adding/checking oil level
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Tbone95 View Drop Down
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Joined: 31 Aug 2012
Location: Michigan
Points: 12338 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Tbone95 Quote  Post ReplyReply Direct Link To This Post Posted: 07 Aug 2017 at 6:59am
3pt lowered is true, but it wouldn't be so significant to stop tractor.
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