Pusher Bolts
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=189973
Printed Date: 27 Apr 2024 at 11:16am
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: Pusher Bolts
Posted By: PDehring
Subject: Pusher Bolts
Date Posted: 09 Aug 2022 at 9:46am
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I borrowed a set of 7/8"-12 pusher bolts for a 220 but found my wedges are 7/8"-9, which is a standard UNC thread. I have another set of wedges for the 220 and they are 7/8"-12. I didn't think AC used standard thread sizes on the wedges/pusher bolts. Anyone know why there is a difference or come across this before? ------------- 1937 M Crawler, 1963 D21, 1964 D21, 1965 D12 SIII, 1970 220, 1976 185 |
Replies:
Posted By: DrAllis
Date Posted: 09 Aug 2022 at 9:59am
| Never ran into that before. Maybe (and that means maybe) very early 220's were different ??? or did someone run a tap thru the bushings changing them ?? 12 pitch would have more pushing power than 9 pitch. |
Posted By: PDehring
Date Posted: 10 Aug 2022 at 7:47am
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They were originally cut as 9tpi as they are clean threads. A standard 7/8" bolt runs right in. Its a 1970 model so not an early model but maybe they got switched out at some point?...
------------- 1937 M Crawler, 1963 D21, 1964 D21, 1965 D12 SIII, 1970 220, 1976 185 |
Posted By: jaybmiller
Date Posted: 10 Aug 2022 at 8:00am
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OK, now I'm REAL curious... WHAT are 'pusher ' bolts ? I need to expand my collection of trivia ( like 113355, 355/113 = PI ) ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: SteveM C/IL
Date Posted: 10 Aug 2022 at 8:06am
| Jay,they are used to push the wheel hub off the axle wedge. Wedge has threads,hub has tapered hole bottom to match end of pusher bolt and leading inch plus of bolt has smaller diameter with no threads. Have been pictures of them on forum before |
Posted By: steve(ill)
Date Posted: 10 Aug 2022 at 8:37am
------------- Like them all, but love the "B"s. |
Posted By: jaybmiller
Date Posted: 10 Aug 2022 at 8:49am
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thank steve, YIKES !! $50 EACH !!!! ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: Tbone95
Date Posted: 10 Aug 2022 at 9:23am
113355, 355/113 = PI Huh? Assuming your comma is a decimal point, I get 1003.144735...) If your comma not a decimal, then 1000 x above. Guess you could say (113355, 355/113) - 1000 = PI ??? Then, you aren't even good to the 3rd decimal point. Not even close to the ballparks I play in in my industry. Shoot, good ol' 22/7 is closer than yours. 3.142857
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jaybmiller wrote:Posted By: steve(ill)
Date Posted: 10 Aug 2022 at 9:36am
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355/113 = 3.1415 ....... dont know what the 113355 is for. ok... its to memorize 11...33....55.... ------------- Like them all, but love the "B"s. |
Posted By: Tbone95
Date Posted: 10 Aug 2022 at 9:42am
Memorize. . . . .I didn't know you spoke Canadian. Memorize, I thought mnemonic tricks were supposed to be easier to memorize than the thing itself?
 |
Posted By: Tbone95
Date Posted: 10 Aug 2022 at 9:43am
But I will give it credit, it IS close enough for my playground, though "just". 
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Posted By: steve(ill)
Date Posted: 10 Aug 2022 at 2:54pm
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oh, its closer than that... PI = 3.141592653589793238 355/113 = 3.14159292
------------- Like them all, but love the "B"s. |
Posted By: jaybmiller
Date Posted: 10 Aug 2022 at 3:18pm
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yes, 355/113 just real easy to remember it a 113355.... it's the closest any pair of 3 digit integers can get to PI. ------------- 3 D-14s,A-C forklift, B-112 Kubota BX23S lil' TOOT( The Other Orange Tractor) Never burn your bridges, unless you can walk on water |
Posted By: plummerscarin
Date Posted: 10 Aug 2022 at 5:37pm
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Did someone say pie? I'd like blueberry please. Pusher bolts in action 
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Posted By: DrAllis
Date Posted: 10 Aug 2022 at 7:07pm
| And being done the right way with the axle keyway at 12 o'clock high. |
Posted By: Mikez
Date Posted: 10 Aug 2022 at 9:11pm
| How many do you need to do a wheel. I understand how they work, just wondering. Do you do both wedges or one at a time. |
Posted By: plummerscarin
Date Posted: 10 Aug 2022 at 9:21pm
| All four. Tighten each in succession until POP it is loose. I kept one regular bolt in loose so the wheel would not fall away from the hub. |
Posted By: BrianC
Date Posted: 11 Aug 2022 at 6:59am
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Which model Allis-Chalmers tractor first used this? |
Posted By: Tbone95
Date Posted: 11 Aug 2022 at 7:16am
How do you know how close my playground is? You don't. We must use leads and helix angles calculated to .0000x. So, the "9" above. So like I said, barely close enough.
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Posted By: Tbone95
Date Posted: 11 Aug 2022 at 7:17am
Clear as mud. If it works for you, good for you. Personally, I can remember that fraction easier than your code for it. I just use the Pi button on the calculator, or the Pi command/ constant in Excel, or programming language. Then ya know you're good.
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Posted By: Codger
Date Posted: 11 Aug 2022 at 7:26am
| This must be why I've seen so many impact marks on older tractor hubs at work. |
Posted By: Unit3
Date Posted: 11 Aug 2022 at 10:58pm
??? D19 ??? ------------- 2-8070FWA PS/8050PS/7080/7045PS/200/D15-II/2-WD45/WD/3-WC/UC/C |
Posted By: Calvin Schmidt
Date Posted: 14 Aug 2022 at 10:21am
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I'll have some 7/8" -12 pusher bolts for the two piece wedge available at Baraboo. Will be driving around in an orange golf cart with two white racing stripes and an A-C logo on front. ------------- Nothing is impossible if it is properly financed |
Posted By: Michael V (NM)
Date Posted: 14 Aug 2022 at 11:08am
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I only have 3, will that work? or do I need 1 more? need to put an axle seal in the 7060,, and would like to move the centers 'in' few inches too and find $80.00 for a 7/8"X12 tap.....
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Posted By: BrianC
Date Posted: 14 Aug 2022 at 4:12pm
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I lost track of the mission here. Are you in need of a set of custom 7/8"-9 jack bolts? I would buy 7/8-9x10" long bolts (grade 5 about $20 each) and a 7/8-9 threading die. Need to turn down the ends (lathe work). I assume 10" is long enough? I own a lathe, so that is the way I would go. I make enough things out of common bolts. Always cheaper than purchasing metal stock from McMasters and such. Another way would be 7/8-9 all-thread rod and weld a hex nut on the end, plus the lathe work. However I don't know the "grade" of the all-thread rod. But the cheap way out. |
Posted By: DrAllis
Date Posted: 14 Aug 2022 at 8:51pm
| Grade 5 quality for an axle wedge pusher bolt would be a bad idea. A 7060 requires FOUR pusher bolts if the wedges haven't been loosened in years. Three is useless. Sometimes if the wedges aren't terribly rusty, two will get the job done, but it's kind of rare. |
Posted By: Tbone95
Date Posted: 15 Aug 2022 at 6:38am
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The coarser thread pitch is going to make it harder too if they're really stuck. It's the mechanical equivalent of pushing a heavy load up a steeper incline. But, we don't know how tough they're going to be to move. I haven't seen it mentioned here, and maybe I was advised incorrectly years ago when I first got my 7045. But I was advised to heavily and sequentially tighten the bolts, then whack the end of the axle with a sledge a few times, tighten, whack, repeat. My right side which had probably been moved a few times may not have needed that. The left however took me two more days, I'm pretty sure they would never have come loose without that shock/ vibration.
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Posted By: PDehring
Date Posted: 15 Aug 2022 at 9:39am
I searched in the Knowledge Base forum but figured it would be useful to clarify/list the sizes of pusher bolts for what models they are used for. Is the following correct? 3/4"-10 bolts are for models D19, D21, 190, 200 and 7000 7/8"-12 bolts are for models 210, 220, 7010-7080, and 8010-8070. ------------- 1937 M Crawler, 1963 D21, 1964 D21, 1965 D12 SIII, 1970 220, 1976 185 |
Posted By: injpumpEd
Date Posted: 15 Aug 2022 at 10:15am
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yes, 7/8 would also cover the 4wd's, 7580, 8550, 4W220, 4W305. Easy to tell just by looking at the hub, if it's a triangle with three bolts, it's the smaller D19-7000 style. Remember some 7010, and possibly 7020's had a lower cost wedge with just 2 bolts on each half, but still the bigger HD style. Making your own out of grade 5 bolts would not work, anyone who has actually done this job knows, you need to spend the money and buy the right bolts and tap to avoid more difficulty. ------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers! |
Posted By: Mikez
Date Posted: 15 Aug 2022 at 11:09am
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Nice info. Where do the 6000 fall in on the list. Ed are you saying tap the threads first.
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Posted By: injpumpEd
Date Posted: 15 Aug 2022 at 1:05pm
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6000 series don't have bar axles. Yes, always a good idea to buy the special tap and chase the threads first. Anti=seize the bolts as you install them, they will want to gall the threads. ------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers! |
Posted By: PDehring
Date Posted: 15 Aug 2022 at 1:07pm
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6000 series don't use wedges, the wheels have a circular bolt pattern for a hub. ------------- 1937 M Crawler, 1963 D21, 1964 D21, 1965 D12 SIII, 1970 220, 1976 185 |
Posted By: Mikez
Date Posted: 15 Aug 2022 at 3:31pm
| You know as I was writing that I thought to myself, self there isn’t any axles |
Posted By: BrianC
Date Posted: 15 Aug 2022 at 5:47pm
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According the the parts book for the 220, there are three jack bolts, all for use with the simple bushing (no key). Looking at used parts for sale at Wengers confirms this. Four came to be with other tractors, later or bigger. Tap them all and use six jack bolts!
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Posted By: Mikez
Date Posted: 05 May 2023 at 12:15am
Is this one |
Posted By: injpumpEd
Date Posted: 05 May 2023 at 8:30am
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Looks like the bigger one to me. 7/8-12 ------------- 210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers! |
Posted By: Mikez
Date Posted: 06 May 2023 at 9:06pm
| Thanks Ed, just have to find few more |
Posted By: Lynn Marshall
Date Posted: 07 May 2023 at 7:55am
| I have a few of those left for sale. I also have some of the smaller ones too. |