Hydro pump rattle
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=23573
Printed Date: 22 Feb 2025 at 11:04am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Hydro pump rattle
Posted By: AC WD45
Subject: Hydro pump rattle
Date Posted: 06 Jan 2011 at 6:33pm
Curious as to what would cause the hydraulic pump on a WD45 to rattle when the hydraulics are in use? It started in '03 when we put the loader back on after we got new (used) loader arms when we first topped off the oil the pump for the loader. at least that's when I first noticed it but I was 10 or 11 then and don't remember hearing it before that. Is it normal? is there a simple fix?
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German Shepherd dad
1957 Allis Chalmers WD45
#WD234847
1951 Allis Chalmers WD
#WD88193
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Replies:
Posted By: Steve M C/IL
Date Posted: 06 Jan 2011 at 6:57pm
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Don't know what you mean by "rattle".The thumb screw on the front all the way out against the housing?That will make em squeal and slower if not.
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Posted By: AC WD45
Date Posted: 06 Jan 2011 at 7:09pm
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this is not my tractor, but watch the whole video and you shall hear it when he raises the 3pt.
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German Shepherd dad
1957 Allis Chalmers WD45
#WD234847
1951 Allis Chalmers WD
#WD88193
|
Posted By: Orange Blood
Date Posted: 06 Jan 2011 at 8:41pm
Sounds exactly like mine, and every one I have ever used. I think it is only because it is a four plunger pump, and at idle, you have a very distinctive pulse from each plunger.
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Still in use:
HD7 WC C CA WD 2-WD45 WD45LP WD45D D14 3-D17 D17LP 2-D19D D19LP 190XTD 190XTLP 720 D21 220 7020 7030 7040 7045 3-7060
Projects: 3-U UC 2-G 2-B 2-C CA 7-WC RC WDLP WF D14 D21 210 7045 N7
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Posted By: Denis in MI
Date Posted: 06 Jan 2011 at 10:35pm
All of mine do it too so it is either normal or a problem that does not get worse or effect anything
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1938 B, 1945 B, 1941 IB, 1949 C, 2 1938 WCs, 3 1950 WDs, 1951 WD, 2 1955 WD45, 1957 D-14
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Posted By: Steve M C/IL
Date Posted: 06 Jan 2011 at 11:29pm
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That is normal. It's more of a knock than a rattle. The heavier the load,the louder it will be.
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