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Discussion Forum

Re: Allis Chalmers D grader

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12-07-2002 18:41:41

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It doesn't have a two speed gear box somewhere and you are using "road speeds" ??

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12-08-2002 22:05:29

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 Re: Re: Allis Chalmers D grader in reply to Tom, 12-07-2002 18:41:41  
Where would the shifter be if it had a 2 speed box? I know some of the old ford 9n's had them. I have looked and can't find it. I am using 1st gear.

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12-09-2002 17:07:55

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 Re: Re: Re: Allis Chalmers D grader in reply to Don, 12-08-2002 22:05:29  
I don't know, that was just a guess. I suppose if one is not in plane sight it could be something you need to get off and move, although I have never heard of such an arrangement and I think it is unlikely. It would seem that there should be some way to slow it down though as from what you say it would be pretty useless for any work at the speeds you have. Are the numbers on the shift pattern easily readable, could you be in the wrong position for first I mean?

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Gene Stone

12-18-2002 23:25:00

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 Re: Re: Re: Re: Allis Chalmers D grader in reply to Tom, 12-09-2002 17:07:55  
It is my understanding that the D series graders came with a standard 4-sp trans and there was an optional direct / under gear box. I had a 1960 diesel model and it had the optional low gear box.

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Greg W. Morris

12-19-2006 08:51:56

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 Re: Re: Re: Re: Re: Allis Chalmers D grader in reply to Gene Stone, 12-18-2002 23:25:00  
I have an AC-D grader also. It is geared a little fast but doesn't sound as fast as yours. Perhaps you have oversize tires. I believe it should be 7.50 X 20. You could try an even lower profile tire on the drive wheels. Good luck. Greg

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