#44 hydraulic seals - control shaft seal number?

See this thread
http://www.acmoc.org/bb/showthread.php?1803-D2-with-44-Hydraulics&highlight=1J2382

Thanks. Got what I needed.

I have the same issue and I purchased that seal however the OD is about 1/8" too large for my pump so it doesn't fit in the hole. (Pn#1j2382). I can't read the sn on my pump so I was wondering if anyone can lend a hand with this guessing game. The only other seal I could find was about half the size of this one. Way too small. I just need one that is slightly smaller. Machine SN#d2 5u10131. Thanks.

Here is another thread of where the guys here helped me to identify and fix a shaft leak on my #44 hydraulic pump. http://www.acmoc.org/bb/showthread.php?7627-No-44-Hydraulic-seal-leaking&highlight=Cysco

Do you know if the seals referenced in that thread are the same as Cat Part#1J-2382?

Great ideas with he double seals and sleeves. I won't be happy if I have to take this apart twice.

These are the dimensions for PN# 1J-2382 according the Cat specifications:

Shaft OD: 28.58 mm
Axial Width: 22.23 mm
Bore Diameter: 47.6 mm
Seal OD: 47.7 mm
Material: Nitrile Rubber (NBR) - 75 Duro
Construction Type: DB

So, the seal OD is 1.88" and I'm probably looking for something around 1.75". I'll probably end up just getting the micrometer out and taking my best shot with the aftermarket stuff.

I spent plenty of time searching through all of the #44 pump microfiche at Caterpillar recently. I never found the correct seal. In the end I used the Speedi Sleeve part listed above and Timken/National seal number 470045. Dimensions listed below. I hope this helps others. My #44 pump looks to be the same as most of the others with the exception of this seal outside diameter. Odd.

1.125X1.828X.437

Hi Team,
I may be wrong--too long since I did one of these at The Dealer--but I seem to have a hazy recollection that the 2 seals were held inside another case to keep them a pair of seals put together to be one seal ???
I stand to be corrected.
This could be your seal bore diameter shortfall--the case is still in the housing.
Cheers,
Eddie B.

Haven't been following this thread but edb's post jogged my memory....and I believe he was the source of info.

Took Cat forever to get this simple design right. Must have been very late in production cause you seldom see this arrangement.