Just a matter of curiosity, irrigation
Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
Forum Description: anything you want to talk about except politics
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=209594
Printed Date: 07 Jan 2026 at 12:10pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Just a matter of curiosity, irrigation
Posted By: LouSWPA
Subject: Just a matter of curiosity, irrigation
Date Posted: 04 Jan 2026 at 12:49pm
|
those irrigation systems that look like TV antenna towers laying on their sides, in sections supported by tandem wheel assemblies between sections, and tethered to a center well, or plumbing outlet.....how are they powered, and how is each section controlled speed wise, so that the system rotates around the center in a straight line? ------------- I am still confident of this; I will see the goodness of the Lord in the land of the living. Wait for the Lord; be strong and take heart and wait for the Lord. Ps 27 |
Replies:
Posted By: steve(ill)
Date Posted: 04 Jan 2026 at 1:10pm
|
around here there use to be a couple diesel powered pumps ... but any more they drop a 480v line to a base where the pump / electric motor and control panel set.. https://www.youtube.com/watch?v=AlyvWK_VAwk" rel="nofollow - https://www.youtube.com/watch?v=AlyvWK_VAwk ------------- Like them all, but love the "B"s. |
Posted By: LouSWPA
Date Posted: 04 Jan 2026 at 1:50pm
------------- I am still confident of this; I will see the goodness of the Lord in the land of the living. Wait for the Lord; be strong and take heart and wait for the Lord. Ps 27 |
steve(ill) wrote:Posted By: mdm1
Date Posted: 04 Jan 2026 at 2:57pm
|
That's why they have people smarter than me. If I did it it would look like a coiled snake taking a wizz! ------------- Everything is impossible until someone does it! WD45-trip loader 1947 c w/woods belly mower, 1939 B, #3 sickle mower 1944 B, 2 1948 G's. Misc other equipment that my wife calls JUNK! |
Posted By: AllisFreak MN
Date Posted: 04 Jan 2026 at 3:20pm
|
Each tower moves independently. There are limit switches that only let each one move so far. They are not always in a "perfect" straight line, but they are close. The speed can be controlled as to how much water they want put on the field. Most can be controlled from a cell phone nowadays. I am literally surrounded by them where I live. Valley, Zimmatic and T-L are the 3 major brands around here. ------------- '49 A-C WD, '51 A-C WD, '63 A-C D17 Series III, 1968 A-C One-Seventy, '82 A-C 6060, '75 A-C 7040, A-C #3 sickle mower, 2 A-C 701 wagons, '78 Gleaner M2 |
Posted By: DougG
Date Posted: 04 Jan 2026 at 5:26pm
| Poor Ole farmers,,,,, getting those checks,, |
Posted By: DMiller
Date Posted: 04 Jan 2026 at 5:33pm
| Most Pivots around here have Water Driven Motors to Chain Drive Axle Wheels. |
Posted By: TedN
Date Posted: 04 Jan 2026 at 5:47pm
|
To keep it simple, I'll start off by saying there are exceptions to most everything, and newer control systems that use computing power. Most in my area run on 480v 3 phase with a transformer to supply a 110v control circuit. The 480 is swapped at the pivot to run either forward or reverse. There are seperate wires that go out for the forward and reverse control circuits, and each span has a control box with a contactor for the 480 and two microswitches that run on a cam that is attached by linkage to the next span. one of the microswitches has the forward and reverse conrol cicuits wired into the normal open and normal closed posts, and the common runs the contactor. When the next span out moves far enough it trips the switch so it moves until the switch is open again. The other microswitch is the safety circuit, if for some reason things don't move it opens the circuit and the machine shuts down. Most machines 20 years ago(when I took classes) were built so if 110v was sent back to the pivot on the control circuit that wasn't being used it would reverse the machine. Speed used to be controlled by a simple timer, most made now use a computer and can be set up to change the speed in different areas of the field. T-L macines run on hydraulic, and have flow control valves on each span to keep them aligned, and the only one I had much experience with used a flow control valve at the end to control the speed. Again most of my information is from many years ago, and there are several exceptions. I hope this answers your question. Ted ------------- 190XTD seriesIII, 190XTD seriesI, maroon belly 7000, 190XTD series??? project(or maybe parts) |
Posted By: LouSWPA
Date Posted: 04 Jan 2026 at 9:09pm
|
Thanks for all the input. Like I said, just curious. Ted, pretty good explanation. ------------- I am still confident of this; I will see the goodness of the Lord in the land of the living. Wait for the Lord; be strong and take heart and wait for the Lord. Ps 27 |