[Farmall] Cub experts

[Guy Fay]

R92 would be the second revision of the assembly. There's whole books with
the rules for the parts noun and number system.

-----Original Message-----
From: farmall-bounces at lists.antique-tractor.com
[mailto:farmall-bounces at lists.antique-tractor.com] On Behalf Of Mike Sloane
Sent: Thursday, January 28, 2010 10:04 AM
To: Farmall/IHC mailing list
Subject: Re: [Farmall] Cub experts

I believe that Todd is correct. I have only ever seen "R2", "R11", and 
"R92" suffixes on IH parts. The parts manual will generally state when a 
higher (later) number part replaces an older one. You will see "can be 
used to replace xxxxxxRx" in the description. Also, generally speaking, 
IH would not assign a new part number unless the new part would *always* 
be suitable as a replacement for the old part. The older parts that were 
castings often had only 5 digit part numbers with an "A" or "B" 
signifying revisions, adding to the complexity, and sometimes a much 
later revision would be given a 6 digit number. And, of course, Case IH 
converted all of their numbers to a later system, making all of our old 
manuals obsolete (fortunately the CNH computers have integrated 
cross-reference capability).

(Ford operated pretty much the same way, using their own numbering 
scheme. I am not familiar with JD/Case/Oliver/MM/Ferguson/etc.)

The problem comes in some of the descriptions that IH engineering used. 
For instance, the instrument panel on the Cub is actually considered the 
"rear support" for the hood/tank, not an instrument panel.

I agree that Guy Fay or Jim Becker might be the ones to best address 
this, or maybe Ken Updike.

Mike

farmallgray at aol.com wrote:
> Hopefully Guy Fay will jump in here and correct me if I'm wrong but I
think the "9" in "R92" indicates
> that it's an assembly rather than a single part. In the case of something
like a dash panel, it could have 
> had stiffeners or brackets spot welded to it or something along those
lines.
> 
> IH usually didn't give the option of ordering the older version.
> The new part would replace the old for function.
> 
> 
> 
> Todd Markle 
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