From: Bruce Beattie (bruce@eecs.berkeley.edu)
Date: Tue Jun 22 2004 - 09:16:57 PDT
Hi to All,
When I bought my M54A2 from Jim up in WA, he explained in detail
about the mechanisim that controls whether the front drive engages or not.
although I understood it at the time, the details are too fuzy now. The end
result of all this was that if you put a valve in this line and turned it
off, then
theoretically the front drive was disengaged. With the help from a friend
this was done before my long trip back to Berkeley CA. I believe that it
worked,
but since I have not driven it very far without that in place, I can't say
for
sure what the difference is.
My foggy recollection of this is that the design of the system is such
that if the
air system fails, you don't get a situation where the front drive keeps you
from getting out of a bad spot, therefore the no air scenario essential
disengages
the front drive.
Bruce MVPA 23824
uniquemachine@cybcon.com wrote:
> Hi to all.
>
> I have a question that maybe someone could answer for a friend of
> mine. He has an old (1950's?) 5 ton gas powered truck (M54?)
> I was looking at the transfer case and it looks like the same kind of
> setup as my M35A2 transfer case with an air cylinder to engage the
> front drive. (just alot bigger) It looks like the air is controlled by
> some valves on the transmission though. Would it be possible to
> bypass those trans valves and install a front axle air switch like on
> my deuce to engage the front drive on the transfer case?
>
> Thanks,
> Jon
>
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