7045 hydraulics
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=145064
Printed Date: 02 Apr 2026 at 4:24am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: 7045 hydraulics
Posted By: Ksfarmer73!
Subject: 7045 hydraulics
Date Posted: 03 Dec 2017 at 11:41pm
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I have a 7045 that is having hydraulic issues. When you first let it warm up you have hydraulics and staring and after it gets sets for a while running and it's warmed up you have nothing what is my problem.And how do I fix it. I want to sell it.
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Replies:
Posted By: DrAllis
Date Posted: 04 Dec 2017 at 7:18am
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Gotta be a bit more specific that that. Does the power steering work all the time??? Will the tractor drive and move all the time?? Does the 3-point hitch work all the time ??? Is it just the remote outlets that work and then quit ????? if so, I'd be checking stand-by pressures at the PTO valve test port tee....needs to be 500 to 600 psi and then 2400-2500 psi when a function is fully activated.
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Posted By: MACK
Date Posted: 04 Dec 2017 at 7:28am
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Are you sure it is full of oil? Unscrew bottom sight glass. Is the screen in end of left filter? MACK
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Posted By: Ksfarmer73!
Date Posted: 04 Dec 2017 at 8:09am
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Okay sorry, When I first start the tractor I have steering and hydraulics out the back. Then when it gets warm,I have nothing, but it will drive. It's a power director transmission. This is the first 7000 series I have ever had. It's full of oil. TIA
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Posted By: Ksfarmer73!
Date Posted: 04 Dec 2017 at 8:10am
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Okay, When I first start the tractor I have steering and hydraulics out the back. Then when it gets warm,I have nothing, but it will drive. It's a power director transmission.It's full of oil.
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Posted By: DrAllis
Date Posted: 04 Dec 2017 at 8:45am
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Sounds to me like the left hand filter is too short (or plugged). Where are you checking the oil level ?? in the cab with the dipstick ??
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Posted By: Ksfarmer73!
Date Posted: 04 Dec 2017 at 9:04am
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Thanks I will look into to it.
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Posted By: Ksfarmer73!
Date Posted: 04 Dec 2017 at 9:09am
Posted By: DrAllis
Date Posted: 04 Dec 2017 at 12:17pm
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You didn't say where you were checking the oil level ...................
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Posted By: DrAllis
Date Posted: 04 Dec 2017 at 12:40pm
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Anything other than an AGCO brand hydraulic filter is asking for trouble. Some aftermarket filters are too short or too fine of micron, causing pump starvation. You don't say how long it has been doing this. You haven't said if these two belly filters have ever been changed. Finally, the hydraulic fill is above the PTO shield and hydraulic oil level is the sight glasses, WHICH SOMETIMES ARE FOGGY and difficult to see if there's oil in them or not.
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Posted By: Ksfarmer73!
Date Posted: 04 Dec 2017 at 2:07pm
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It's started doing it one day after setting for a couple of weeks. I went to move it and it started doing this. I check the oil in both places. Thanks
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Posted By: DrAllis
Date Posted: 04 Dec 2017 at 2:55pm
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Well, that sounds like it has a leak (when sitting) and the rear end is low on oil.
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