[AT] NAA fluids

Cecil Bearden crbearden at copper.net
Tue Aug 22 20:31:14 PDT 2006


If I recall correctly, there are 3 sumps, but the shafts are not sealed 
between the housings.  the oil can travel between sumps, through the 
bearings.  The 3 drain plugs are to get it all out.  NAA uses 90Wt mineral 
oil.  Also look at 50wt motor oil and 90wt mineral and you will not find a 
whole lot of difference.

I have an old Cat D6 with a worn hyd pump and valves.  It uses 140 wt and if 
I could get something heavier, I would use it....

Cecil  iin OKla
----- Original Message ----- 
From: "Chris Britton" <c.britton at worldnet.att.net>
To: <at at lists.antique-tractor.com>
Sent: Tuesday, August 22, 2006 12:42 PM
Subject: [AT] NAA fluids


>
> Congrats on the NAA.  Yes.. the NAA has 3 seperate sumps, tranny, diffy, 
> and hydro.
>
> m-4864-a and m2c41 have both been superceeded by M2C134D  ( generic utf.. 
> like you bought at TSC ).
>
> You have some choices.  You can run gear oil in the diffy, gear oil or UTF 
> in the tranny, and UTF or plain hyd oil ( aw32/46 ) in the hyds.
>
> You can run UTF in all 3 sumps if your sumps leak.
>
> If your seals are good.. i'd run gear oil in the diffy.. and depending on 
> your climate, and financial reasons.. choose between utf and gear oil for 
> the tranny.. and aw32/46 for the hyds.  Might be cheaper to buy enough utf 
> to do at least 2 sumps.. vs buying 3 types of oil.. etc.
>
> Soundguy
>
>>From: Dave Merchant <nesys_com at ameritech.net>
>>Subject: Re: [AT] 90wt oil
>>Just bought an NAA...
>>Does anybody have fluid info or an operator's manual for the NAA/Jubilee?
>>I have both the I+T and Dearborn shop books (latter is for entertainment
>>only!),
>>but neither talks about types of fluids, except one obscure reference to a 
>>Ford
>>specification number M-4864-A summer and M2C41 winter for the hydraulics.
>>It appears the hydraulic + back end fluid may be in separate compartments,
>>meaning they might take 2 different kinds of oil(?)
>>On a co-workers advice I went out and bought a bucket of TSC's equivalent
>>of 134D,
>>but wonder if that's the best stuff to use in an NAA?
>
>
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> Remembering Our Friend Cecil Monson 11-4-2005
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