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AC 652 Dozer
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Frog71 View Drop Down
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Joined: 23 May 2022
Location: Madison NC
Points: 2 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Frog71 Quote  Post ReplyReply Direct Link To This Post Topic: AC 652 Dozer
    Posted: 28 May 2022 at 7:11pm
I have a 652 AC Dozer. It needs couple of seals. At the moment I have the steering clutches out because one needed attention and I was planning on doing both. I bought dozer from original owner who didn’t use much. It sat long time. Total hours on machine 470 hours. Yes that is correct. Everything is original. Before I took clutches out I did drive it forward and backwards and would turn one way some. Just seeing if any one interested in it. Runs good. If interested just contact me. Also if anyone has parts let me know please. My cell is +13364538496

Edited by Frog71 - 29 May 2022 at 9:00pm
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Ages Cat View Drop Down
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Joined: 12 Sep 2009
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Points: 688 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ages Cat Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2022 at 9:30am
MinnPar or Western Gear may have the clutch parts.  There have been improvements in the sprocket shaft seals. We did our HD3 twice before we sealed the sprocket shaft seals. MINNPAR had the kit. A picture of the tractor would be beneficial. 
Curt Anderson
HD3, HD5B, HD6AG,HD6B dozer, I-400,615, 616,620,720,ACP25 lift truck, 1956 D Grader, AC 540 loader, AC #84 plow, Simplicity tractors, Agco MT225, Agco 2025,
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Coke-in-MN View Drop Down
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Joined: 12 Sep 2009
Location: Afton MN
Points: 41609 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2022 at 2:48pm
Any seal can be matched up through a local bearing supply house or a good auto parts store .
 Worn shafts can be repaired with speedy sleeve and proper matching seals .
 I do both rear axle seals with speedy sleeves, after having 2 axles break that had been welded and ground back to size - seems that took the heat treating out of axle and made them brittle 
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Joined: 22 Nov 2009
Location: Paso Robles, Ca
Points: 4547 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ray54 Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2022 at 3:26pm
Where the parts welded or what is called metal spray? I have many had things metal sprayed with very good luck. But a old process now days, the last old guy using it has died and don't know if I can get it done locally.
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Ray54 View Drop Down
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Joined: 22 Nov 2009
Location: Paso Robles, Ca
Points: 4547 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ray54 Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2022 at 3:27pm
Originally posted by Ages Cat Ages Cat wrote:

MinnPar or Western Gear may have the clutch parts.  There have been improvements in the sprocket shaft seals. We did our HD3 twice before we sealed the sprocket shaft seals. MINNPAR had the kit. A picture of the tractor would be beneficial. 

I think you are meaning General Gear, rather than Western Gear.
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Coke-in-MN View Drop Down
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Joined: 12 Sep 2009
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Points: 41609 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Coke-in-MN Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2022 at 10:20pm
Metal spray works on parts that aren't heat treated but when it comes to things like axle shafts I am unsure . All I know I I bought 2 axles from same supplier and they both snapped at same place (wear point of seal to shaft)  so with being into it for the 4th time I went with a worn seal area and used a speedy sleeve - was still working 2 years later when I sold the machine . 
Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Codger View Drop Down
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Joined: 23 Dec 2020
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Points: 2041 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Codger Quote  Post ReplyReply Direct Link To This Post Posted: 30 May 2022 at 11:04pm
An axle shaft that is welded on and not stress relieved along with normalized afterward is a very likely candidate for breakage. Most axles are of a medium carbon steel such as C1045 which takes a very good case hardening through splined areas and bearing surfaces. It is also ductile enough to absorb the torsional stress induced through driving something such as a wheel, or sprocket end.

Once this heat treatment is disrupted such as welding does to the base material, stresses in the molecular structure are induced as nodules and such are no longer aligned which give the material strength. Post welding stress relieving and normalization treatment restore these properties.

Not many repair facilities would have this capability.


Edited by Codger - 31 May 2022 at 6:07am
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Joined: 16 Apr 2012
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Points: 450 		Post Options Post Options   Thanks (0) Thanks(0)   Quote albatros_3 Quote  Post ReplyReply Direct Link To This Post Posted: 31 May 2022 at 6:46am
I bought a bunch of parts from General Gear and Machine in Idaho. A forum member Rick rebuilt the clutches for me.

Edited by albatros_3 - 31 May 2022 at 6:50am
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