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D2-5U 8791

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1 month 5 days ago #259145 by LenJensen
Replied by LenJensen on topic D2-5U 8791
I removed this filter/strainer and noticed one end has damage on the rubber seal.  Can I get a new one at Cat, or will I need to put a new seal on this one?

What grade or type of oil should I use when getting it back together?  Some literature I found said the assembly takes 3 1/2 gallons, is that correct?

 
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1 month 5 days ago #259149 by seiscat
Replied by seiscat on topic D2-5U 8791
This is the back cover of the OMI for the D2 4U & 5U tractors. There are many opinions on the best oil to use. You should use any good quality oil that is rated for use in diesel engines and of a weight suited for your climate.
Craig
 
 
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1 month 5 days ago #259151 by LenJensen
Replied by LenJensen on topic D2-5U 8791
Thanks. I was needing the hyd.oil requirements. I am going to use ISO 32 hydraulic oil, which I think is near 10 wt. motor oil used in the '50's. Is there another preference?

Also, is there a part number (or where to find it) for the hyd filter shown in the picture, or can it be cleaned and reused?

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1 month 5 days ago #259153 by seiscat
Replied by seiscat on topic D2-5U 8791
The OMI for NO. 44 hydraulic control used on your D2 5U calls for CO (Crankcase Oil.) I think ISO 32 is okay.
Craig
 

 
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1 month 5 days ago #259154 by seiscat
Replied by seiscat on topic D2-5U 8791
The filter is 2A5886, the o-ring 4F7390. 
The parts books for the D2 5U and the NO. 44 hydraulic control are available in the ACMOC library. You have to be a "paying member" to access them.
Craig  
 

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1 month 5 days ago #259157 by LenJensen
Replied by LenJensen on topic D2-5U 8791
I'm a paid up member and went to the library to look at the #44 hydraulic control info. I see you beat me to the info, but I discover the filter element is 2A 5886, but I don't know if I can find one. Can I clean the one I have and reuse it?

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1 month 4 days ago #259158 by seiscat
Replied by seiscat on topic D2-5U 8791
Don't reuse! The 2A5886 filter is still available from Caterpillar and aftermarket sources.
Craig

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1 month 4 days ago #259159 by LenJensen
Replied by LenJensen on topic D2-5U 8791
Thanks, I get one located. That's my current holdup.

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1 month 4 days ago #259161 by seiscat
Replied by seiscat on topic D2-5U 8791
The most useful manuals are the OMIs. The ACMOC library already has the Operators Instructions for the NO. 44 hydraulic control. I'm currently 50% complete with scanning the OMI for the D2 4U & 5U tractors . I should be through with it and have it posted to the library next week. I suggest you read them both. They will save you time & money and keep you from making expensive mistakes.
Craig

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1 month 4 days ago #259165 by LenJensen
Replied by LenJensen on topic D2-5U 8791
That 2A 5886 filter seems to be the same as the fuel filters used in the D2. If so, not very sophisticated. I may even have one on hand. I'd rather find one like I removed with the metal outside cover. Have the part numbers changed over the years?

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