Farm Equipment - 7030 Hydraulics

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7030 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=134541
Printed Date: 07 May 2025 at 12:33pm
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Topic: 7030 Hydraulics

Posted By: rmullican
Subject: 7030 Hydraulics
Date Posted: 01 Feb 2017 at 3:33pm

I'm wanting to find out if hydraulics on 7030 at the remote service valves are a closed system or open system

Replies:

Posted By: DrAllis
Date Posted: 01 Feb 2017 at 4:05pm

Would be considered "closed-center", but in actuality is "variable pressure/variable volume", which is a step newer than just closed center. What are you trying to do ??

Posted By: rmullican
Date Posted: 01 Feb 2017 at 8:13pm

I was looking for clarification, tractordata.com list hydraulics as "open" and agco parts show a piston pump on parts break down. Looking at hay work (discbine & round baler) and pasture renovations (bog, disc, pasture drill).

Posted By: Jwmac7060
Date Posted: 01 Feb 2017 at 9:07pm

We run a discbine and round bailer on our 7030 no problem...Pasture drill shouldn't be a problem...We pulled a 1560 Deere with ours

Posted By: rmullican
Date Posted: 02 Feb 2017 at 7:41am

thanks for the replies

Posted By: Joe(TX)
Date Posted: 02 Feb 2017 at 7:49am

It's closed center with load sensing

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1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A