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Allis Chalmers Discussion Forum
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AC Questions

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ED (IA)

08-12-2004 19:30:19




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Can anyone answer the following AC questions for me? (1) How does the lettering system go for smaller AC tractors (B, C, etc.)? How do they differ?
(2) How difficult is it to find a belly-mounted sickle mower for a smaller AC?
(3) I have an AC semi-mounted sickle mower I'm trying to identify. It has one wheel in the back and a short bar. It hooks to my WD45 using part of a post-factory 3pt system, not the snap-couplers. It has only one adjustment lever left...I think a second one was removed to install a hydraulic lift. The thing is a bear to use and I have no way to control the height of the bar. Any idea on a model number?
(4) What is a good sickle mower to use on a WD45? Did AC make one or more?

Thanks for the answers!!

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Coloken

08-13-2004 18:58:27




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 Re: AC Questions in reply to ED (IA), 08-12-2004 19:30:19  
Last time I looked I had a 6 foot sickle mower for a B out behind the barn. I think there were quite a few of them.
Kenny in NE Colorado.



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JMS/MN

08-13-2004 17:18:20




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 Re: AC Questions in reply to ED (IA), 08-12-2004 19:30:19  
To add to what Wil posted-the B was a one-row tractor, early ones had hand brakes, no starter. Later ones had foot brakes and starter. C was a two-row. CA was two-row, early ones had only a foot clutch, later ones had foot and hand clutch, which gave live power to pto and hydraulics. All used the same basic engine block, different rpm, etc for more power. #3- mowers did not have a wobble box and pitman. Wobble box is a more recent term that refers to drives for mocos and combine headers. Older mowers had a flywheel and pitman arrangement. Twin-Wheel drive was driven by a belt, no pitman, let the cutterbar operate from 45 degrees below vertical, to 90 degrees above. Just finished putting a side mount #80 on my WD45 today. Took off the rear mount #3, small wheel in back, both have a 7 foot bar. Rear mount uses a hydraulic cylinder to raise, not the integral lift arms. Basic frame mounts between the rear final drives with a u-shaped bar that attaches to the drawbar. Disconnect is two bolts between the mower and the u-bar.

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ED (IA)

08-15-2004 18:22:33




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 Re: AC Questions in reply to JMS/MN, 08-13-2004 17:18:20  
Could you tell me more about the #3 mower? I learned mine was a #3 from an AC collector I met at a tractor show. Was the #3 meant to be lifted with a hydraulic cylinder or was this a post-factory addition? My cylinder hook up was broken and cobbled together with a piece of rebar, so I took it off. Did the #3 have two adjustment levers? Mine only has one near the sickle bar. Also, I'm still unclear as to how the #3 hooks to the tractor. My #3 has the 3pt attachments that the balls slide over for the lower 3pt arms. Am I missing part(s)?

Thanks for the info!
ED

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Wil

08-13-2004 20:30:40




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 Re: AC Questions in reply to JMS/MN, 08-13-2004 17:18:20  
JMS, thanks for some of the clarrifications on what I had posted. I didn't know that the early CA's didn't have the hand clutch. I also didn't realize that about the early mowers having a flywheel and the wobble box was on a combine.

Wil



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Wil

08-13-2004 11:23:35




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 Re: AC Questions in reply to ED (IA), 08-12-2004 19:30:19  
Ed,
#1: AC introduced the B first and then the C later. The B was introduced as the replacement for the horse and was basically sold as a 1 row tractor. The C came later and was sold as a 2 row tractor. Most B's have the wishbone wide front and I believe hand brakes. The C's were mostly sold with a narrow front.If they did have a wide front, it was adjustable. Not a lot of difference between them with motor's and transmissions. I believe they got the C to put out more horsepower with higher engine speed. The CA followed the C. Again not a lot of difference as far as I know in the basic engine size but the CA had more horsepower by doing minor adjustments with the governor and engine speed.(I could be wrong on the actual engine size on this) The CA has 4 forward gears and a hand clutch. The B and C only had 3 forward gears and no hand clutch.

#2, I know there are belly mounted sickle mowers out there for them but I don't know how rare they are or how hard it may be to find one.

#3. Is your mower's sickle bar driven by a gear box that has "Twin Wheel Drive" on it or is it driven by a wobble box and pitman arm? Also, how big is the wheel in the back? Also, how is it attached to your 3 point system?

#4. AC made an excellent line of sickle mowers that was called the 80 series mowers. They were all Twin Wheel Drive mowers which was a first in the industry. The 80R mower mounts to the rear of the tractor with a special bracket that attaches to where the draw bar assembly attaches. The 80T mower is a trail or pull type mower that you just hook up to and go. The 80R3 was designed to attach to a tractor's 3 point system and the 80S was a side mounted mower. All of these mowers were then updated to the 82 series. All should work on your WD-45.

Hope this helps Ed. If you have any more questions or would like some pictures of an 80R mower, just send me an email.

Wil

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ED (IA)

08-13-2004 14:46:18




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 Re: AC Questions in reply to Wil, 08-13-2004 11:23:35  
Just a couple more questions...
(1) How hard is it to find an AC sickle mower from the 80 series? I live in northern Iowa.

(2)My current mower is driven by a large belt and a wooden pitman arm. The wheel in the back was a 4.00 x 8. My WD45 has a post-factory 3pt system. The mower attaches like any other 3pt to the two arms, but does not use the top attachment of the 3 pt.

Thanks for the answers so far!!

ED

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JMS/MN

08-15-2004 09:16:17




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 Re: AC Questions in reply to ED (IA), 08-13-2004 14:46:18  
MPLS Tribune ad today. D17, 3 bottom plow, Field Cult,saw rig, sickle mower. No model # of mower. $4000. 952-466-2646.



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Wil

08-13-2004 20:39:50




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 Re: AC Questions in reply to ED (IA), 08-13-2004 14:46:18  
Ed,

Where abouts in Northern Iowa are you? I live in Northeast Iowa. Shoot me an email if you want. 80 series mowers are out there, you just need to be diligent and patient. I do know of some intact 80R mowers down in East Central Iowa. Don't know what the guy would want for one but can get you in contact with him.

Wil



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ED (IA)

08-15-2004 18:25:07




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 Re: AC Questions in reply to Wil , 08-13-2004 20:39:50  
I live about 7 miles SW of Osage.

My email is [email protected]

Thanks for the help Wil!



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