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AD40 Grader
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fishnhuntr View Drop Down
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Joined: 29 Aug 2018
Location: Whitehall Mt.
Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote fishnhuntr Quote  Post ReplyReply Direct Link To This Post Topic: AD40 Grader
    Posted: 30 Aug 2018 at 12:21am
Just purchased a AD40 grader.Serial number 4070. Diesel 3 speed with hi low box 13:00x24 tires.
   Can anyone tell me the year and weight. Was told it was a 1970's by seller.
    Thanks from Montana way.
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DiyDave View Drop Down
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 53979 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 4:50am
23k lbs, and most likely 1957.  
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Ian Beale View Drop Down
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Joined: 03 Oct 2011
Location: New South Wales
Points: 994 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian Beale Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 5:08am
DIY Dave

23000 lbs and 1957 sounds like an AC Forty Five.

I found this

Sell Allis Chalmer AD-40 Road Grader By Kennedy Equipment, USA

1953 AC Grader AD-40 Road Grader Detroit Diesel Engine, 12 foot Moldboard with good edge, 13:00 x 24 Tires, Runs & Operates good. PRICE REDUCED
Search domain www.tradekey.comtradekey.com/selloffer_view/id/52769.htm
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DiyDave View Drop Down
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 53979 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 6:15pm
Originally posted by Ian Beale Ian Beale wrote:

DIY Dave

23000 lbs and 1957 sounds like an AC Forty Five.

I found this

Sell Allis Chalmer AD-40 Road Grader By Kennedy Equipment, USA

1953 AC Grader AD-40 Road Grader Detroit Diesel Engine, 12 foot Moldboard with good edge, 13:00 x 24 Tires, Runs & Operates good. PRICE REDUCED
Search domain www.tradekey.comtradekey.com/selloffer_view/id/52769.htm

Per Swinfords book, I got the year wrong, they only made  AD40"s from '52-'55.  Weight is right, 23.000 lbs...Wink
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Ian Beale View Drop Down
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Joined: 03 Oct 2011
Location: New South Wales
Points: 994 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian Beale Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 6:33pm
Hi Dave

I thought Allis was out of Detroits around 1954?  Or did they start using Budas?

Next question -  did the "Forty Five" come out 55 - 56 era then?

If that book has serial numbers try 524 - 204 for a serial number.

The "gotcha" is that is an Australian production number  which makes reading a US parts book an interesting chore.  By the "It has this but it doesn't have that" system I've got ours to within a couple of hundred.

The Australian ones had Hydreco hydraulic pumps - must have been a licensee building them here I guess.

This also turned up in the search - 6 reverse, 2 forward gears



Edited by Ian Beale - 30 Aug 2018 at 6:36pm
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wfmurray View Drop Down
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Joined: 13 Sep 2009
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Points: 1225 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wfmurray Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 7:11pm
Ring gear on wrong side of pinion gear.
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fishnhuntr View Drop Down
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Joined: 29 Aug 2018
Location: Whitehall Mt.
Points: 3 		Post Options Post Options   Thanks (0) Thanks(0)   Quote fishnhuntr Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 7:39pm
Tag on left side of cab
   Model AD-40
   Serial number. 4070
   One other tag has
   AD-40. 24 7
Found out it is 1950's
Weigh about 18000#
Appears to be 3-71 GM diesel. Power steering. Gear drive controls no hydraulic cylinders
Any of this help to identify this ole girl??
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ac fleet View Drop Down
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Joined: 12 Jan 2014
Location: Arrowsmith, ILL
Points: 2335 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ac fleet Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 8:35pm
I had a 1960 45 with 6 cyl.  allis engine and jimmy supercharger. thanks ; ac fleet
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Ian Beale View Drop Down
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Joined: 03 Oct 2011
Location: New South Wales
Points: 994 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Ian Beale Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 11:57pm
Originally posted by ac fleet ac fleet wrote:

I had a 1960 45 with 6 cyl.  allis engine and jimmy supercharger. thanks ; ac fleet


The engine with supercharger was Lanova injection and might have just continued from what Buda was making when Allis bought them.

If you're being a purist - with that engine  it is a "Forty Five" (i.e. spelled) and the later ones with 10000 series engines are "45's (numeric).  But most will get the idea with "45".

A 1960 one might have been close to where they swapped to 10000 series engines?

The supercharger might look like a GM but it is cast iron and made by Sweitzer - and heavy




Edited by Ian Beale - 31 Aug 2018 at 12:04am
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kip in cny View Drop Down
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Joined: 29 Nov 2009
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Points: 538 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kip in cny Quote  Post ReplyReply Direct Link To This Post Posted: 02 Sep 2018 at 6:37pm
It's a AD4 looks just like mine
160 CA 920diesel 5020 HD-3
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SteveM C/IL View Drop Down
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8590 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SteveM C/IL Quote  Post ReplyReply Direct Link To This Post Posted: 06 Sep 2018 at 1:58pm
if it's a 40,it came out with a 4-71 Detroit. A 30 used the 3-71
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