AC 175 hyd fluid leak?
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=212369
Printed Date: 28 Sep 2026 at 10:09pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: AC 175 hyd fluid leak?
Posted By: Tracy Martin TN
Subject: AC 175 hyd fluid leak?
Date Posted: 28 Sep 2026 at 6:59pm
I noticed my 175 is very jumpy using hydraulics, lift, loader . It is a little low i checked , but here is the question. Setting on tractor, top of the lift resevoir there is an elbow. When I use the loader or lift it wants to puke a little out and runs downs housing. What is likely cause. What type of hyd fluid -trans are you using. Hasn't been changed lately. Does Oreillys stuff pass the test? Also with a FEL, how much more fluid do you top off with? Thanks, Tracy
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No greater gift than healthy grandkids!
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Replies:
Posted By: DrAllis
Date Posted: 28 Sep 2026 at 7:05pm
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What is your chassis s/n ??? because yours may be the later model version and that is the breather for the hydraulic system. Like directly under the battery area ??
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Posted By: Tracy Martin TN
Date Posted: 28 Sep 2026 at 7:56pm
Dr Allis, it is directly under battery placement. I can't remember the serial number, but is a late model with wishbone frontend. It does have the little tube underneath that ies the two compartments together. Thanks, Tracy
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No greater gift than healthy grandkids!
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Posted By: DrAllis
Date Posted: 28 Sep 2026 at 8:04pm
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That's late model and that is the breather. Your hyd dipstick is sealed and NOT the breather on yours.
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Posted By: Tracy Martin TN
Date Posted: 28 Sep 2026 at 8:52pm
Dr Allis, understood on that, filler has no vent hole. What would make it puke hyd fluid out the breather, and it a little low at that? Thanks, Tracy
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No greater gift than healthy grandkids!
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Posted By: DrAllis
Date Posted: 28 Sep 2026 at 9:18pm
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Let it sit overnite on the level and stabilize oil level and maybe settle down air in the oil. Fill up to the proper level tomorrow. Use the tractor again until it acts up and report what you've learned. Is the transmission OVERFULL?? If not, missing oil went somewhere. Your oil vomiting out the breather could be from air in the system ?? bad loader ram seals allowing air to enter ?? or may a hyd pump that needs resealing. I've never dealt with one of these later model versions, so I'm not really sure with not really much to go on.
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Posted By: Tracy Martin TN
Date Posted: 28 Sep 2026 at 9:46pm
Dr Allis, I will do that and report back. It acts like air in the system.Thanks, Tracy
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No greater gift than healthy grandkids!
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