AC 720 Brantly 603A backhoe strange fittings
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Garden Tractors
Forum Description: A great place to discuss the Simplicity and Allis Chalmers Garden Models
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=206874
Printed Date: 20 Jul 2025 at 3:49pm
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Topic: AC 720 Brantly 603A backhoe strange fittings
Posted By: Heliarc
Subject: AC 720 Brantly 603A backhoe strange fittings
Date Posted: 28 May 2025 at 4:13pm
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AC 720 equipped with loader and backhoe. The boom cylinder on the
backhoe moves but under protest. It has some strange fittings going on. I
thought it would be one line for extend and another for retract but
this is strange and I wonder if something is going on here. I don't know
what any of this stuff is. This is the only cylinder on the machine
equipped like this. Anyone got an idea?  |
Replies:
Posted By: AC720Man
Date Posted: 31 May 2025 at 6:59am
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Looks like some type of diverter block. I have no info on those back hoes. Finding a manual on it would really help. Since no one has chimed in give Brenda at SLI a call. She may be able to help you. ------------- 1968 B-208, 1976 720 (2 of them)Danco brush hog, single bottom plow,52" snow thrower, belly mower,rear tine tiller, rear blade, front blade, 57"sickle bar,1983 917 hydro, 1968 7hp sno-bee, 1968 190XTD |
Posted By: SilverShoes
Date Posted: 10 Jun 2025 at 5:06am
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Wonder if it some sort of diverted to slow the cylinder down and increase/maximize the line pressure. Like an orifice but to keep pressure higher and more consistent Than a office would |
Posted By: Gatz in NE
Date Posted: 15 Jun 2025 at 6:10pm
| priority valve / tee for PS ? Follow the other lines to see where they go. |
Posted By: Steve in NJ
Date Posted: 15 Jun 2025 at 6:36pm
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Looks like a holding valve to me....... Steve@B&B ------------- 39'RC, 43'WC, 48'B, 49'G, 50'WF, 65 Big 10, 67'B-110, 75'716H, 2-620's, & a Motorhead wife |