AC 170-175 plow size
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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=137242
Printed Date: 06 Aug 2025 at 2:36pm
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Topic: AC 170-175 plow size
Posted By: Tracy Martin TN
Subject: AC 170-175 plow size
Date Posted: 10 Apr 2017 at 8:08pm
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Would a 170-175 pull a 3 -18 semi-mount AC plow well? Does it have plenty of horsepower in clay type soil? Tracy ------------- No greater gift than healthy grandkids! |
Replies:
Posted By: HD6GTOM
Date Posted: 10 Apr 2017 at 8:14pm
| I've seen them a pulling 3X16 right along. Weighted right scoured good, I would think she do her. Heavy clay might be a little slow. |
Posted By: Gerald J.
Date Posted: 10 Apr 2017 at 8:31pm
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I pulled 3x18 (AC 2000) plow in various soils with my '68 gas JD 4020 at about 5.5 mph. It pulled 4x18 but I couldn't keep the front wheels on the ground geared down to 3.5 mph. I got more work down with 3x18 moving faster and the field was very level except where it was very wet because the higher speed slammed the dirt down and it crumbled and self leveled. Gerald J. |
Posted By: DougS
Date Posted: 10 Apr 2017 at 8:31pm
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Consider that the 170 is essentially a D17, so absolutely maybe. On level ground, probably. On hilly clay soil, maybe not. |
Posted By: old farmer
Date Posted: 10 Apr 2017 at 8:42pm
| Where I live d17 & 170 could pull a 4-16 real easy. We have sandy soils with hills.If you had the plow set correctly you hardly ever needed front weights. |
Posted By: JFREED
Date Posted: 10 Apr 2017 at 9:04pm
| Is there any type of rear wheel ballast? We pulled 4/16 6-1/2 inch deep in clay soil before going to chisel plow. Does the traction booster work properly? |
Posted By: allisrutledge
Date Posted: 10 Apr 2017 at 9:27pm
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Tracy, here in the eastern hills it is my experience that 2500-3000 lbs + 25-30 hp per 16 inch bottom to pull it right. Probably a little different in your area. Scott ------------- Allis Chalmers still exist in my mind and barns |
Posted By: jiminnd
Date Posted: 10 Apr 2017 at 9:37pm
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I pull 3-18 with 185, works good but wouldn't want any more without adding alot of weight. Neighbor pulled 4-14 with 175 gas, seemed to work ok but alot of gas and alot of weight, he had a loader on it all the time. ------------- 1945 C, 1949 WF and WD, 1981 185, 1982 8030, unknown D14(nonrunner) |
Posted By: dawntreader74
Date Posted: 10 Apr 2017 at 9:44pm
| 3- 16 will be about right' |
Posted By: ranger42
Date Posted: 10 Apr 2017 at 9:59pm
| We pulled 3-16 mounted on 170 diesel for years in heavy clay, but we had it set-up right for plowing. Fluid in the rears plus set of pie weights on both sides. Never an issue. |
Posted By: Tracy Martin TN
Date Posted: 10 Apr 2017 at 10:16pm
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I pull 3 -18, 3 point, Ford plow with my 185. It is a load in some ground. I wonder if the AC 2000, can be changed to 16? Tracy ------------- No greater gift than healthy grandkids! |
Posted By: DennisA (IL)
Date Posted: 10 Apr 2017 at 10:29pm
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We pull 5-14's in sod with a D-17. ------------- Thanks & God Bless Dennis |
Posted By: Eldon (WA)
Date Posted: 10 Apr 2017 at 10:38pm
Mine will handle 6-18's  http://s29.photobucket.com/user/ejons/media/Implements/175andplow.jpg.html" rel="nofollow">  ------------- ALLIS EXPRESS! This year: |
Posted By: cottonpatch
Date Posted: 10 Apr 2017 at 11:33pm
------------- '52 CA, '61 D10 II, ‘61 D15, '66 D15II, '63 D17D III, ‘69 170, '73 185 Crop Hustler, '79 185, '79 7000, '77 7040 |
DennisA (IL) wrote:Posted By: DennisA (IL)
Date Posted: 10 Apr 2017 at 11:39pm
Okay, D-17 can only pull a 1-14". ------------- Thanks & God Bless Dennis |
Posted By: Stan IL&TN
Date Posted: 11 Apr 2017 at 7:56am
I think Eldon won.  ------------- 1957 WD45 dad's first AC 1968 one-seventy 1956 F40 Ferguson |
Posted By: Gerald J.
Date Posted: 11 Apr 2017 at 9:55am
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From the 2000 operator's manual and 2000/3000 parts book I have it appears that its not planned to change from 18 to 16" bottoms. Seems to require drilling four new holes for each bottom in the beam top and bottom to mount the 16" bottoms at that spacing. I know for my 4x18 it was relatively easy to take off the front bottom and move the hitch over that distance to let the second bottom become the front bottom. The hitch is very versatile. Gerald J. |
Posted By: Travis2766
Date Posted: 11 Apr 2017 at 8:39pm
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I pull a semi-mount John Deere 3-16 plow with my D17 (basically the same as a 170) with no problem. I would think 3-18's shouldn't be an issue. ------------- 190XT Series III, D17 Series IV, D15 Series II, All Crop 66 and a whole mess of equipment. |
Posted By: Dave/cvny
Date Posted: 12 Apr 2017 at 7:04am
| When I had my farm I had a 170 diesel full front weight rack , loaded rears with weights on the back . We pulled a 2000 hyd. reset 4-16 . Never had a problem pulling it! |
Posted By: Allis dave
Date Posted: 12 Apr 2017 at 7:34am
| A D17 and 170 are almost the same. A 175 is not. D17 PTO 53HP, 170 54HP, 175 60HP Gas, 175 62HP diesel |
Posted By: captaindana
Date Posted: 13 Apr 2017 at 5:44am
| Thanks Eldon you made my morning!😀😀 |
Posted By: ctbowles 58
Date Posted: 13 Apr 2017 at 6:11pm
| I pulled a 70s series 4x16 with my 175 but 4x14 or 3x16 would of been better. you should be ok with 3x18s |
Posted By: Tbone95
Date Posted: 14 Apr 2017 at 7:11am
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You'd think: 3 x 18 = 54 4 x 16 = 64 (64 - 54) / 54 x 100% = 18.5% increase in soil turned, you'd need 18% more horsepower. If you had a way to measure HP while plowing, I'd guarantee the ratio of HP would be much different than that. Those 3 18's are going to be a lot closer to the 4 16's than you think. I've pulled Deere, Oliver, Allis, and Case (old orange Case, not Case/IH) plows in my farming escapades, and I can tell you one major thing: A plow ain't a plow and soil ain't soil. Or maybe that's 2 things. Anyway, 18 inch bottoms typically pull harder than you plan on. They want to plow a little deeper than a 16, and that's part of it. Usually the pitch and curvature of the moldboard is different within a brand of plow even between the 16 and 18, and it just takes more power, it just does in my experience. Usually best to pull a little smaller plow faster than be at the edge of ability to handle the plow. Then when you encounter a clay knoll, alfalfa roots, a sandy hill where you have traction issues.....you can still get it done, and haul tail when the going's good and you'll do a good job. With no prior experience in your fields, it's hard to tell you what you can do. |
Posted By: Gerald J.
Date Posted: 14 Apr 2017 at 8:50am
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Likely every different AC bottom has a different shape of the moldboard and so pulls differently. For sure the support of the plow has an effect especially the side thrust and the length of the landside. Some semi mounted plows depend more on the tractor and the trailing lift wheel in the furrow for handling the side thrust so probably pull a little easier than a similar sized plow from depending on the landsides for handling the side thrust. The rear wheel rolls a lot easier than the landsides slide. Then the deep suck share probably pulls harder than the standard suck and the width of the share should have an effect too. With anywhere from 3 to a dozen shares offered for a particular bottom it could be hard to predict how hard an AC plow could pull. Then a rusty plow surely will pull a lot harder than a polished plow. Some soil slides easy and some is sticky in the same field. Gerald J. |