A quick look online suggests that the filter may be in the return line
to the tank and will be under pressure. Over pressure may mean nothing
more than the filter is dirty and clogged up and needs to be changed.
The whole of the oil might need to be changed if it is making filters
dirty too quickly and that could mean that parts of the system are
wearing and making the fluid dirty.
RB
On 04/04/2021 5:36 PM, Curt Raymond via Mercedes wrote:
So you guys might remember I've been looking for a backhoe. Locally I've found an old
John Deere 400, its late '60s, not sure exactly yet.Selling cheap because it
"Pressurizes the hydraulic filter" although I'm not yet sure what that means.
Google just wants to sell me hydraulic filters when I try to search on that
term. Anybody BTDT, know anything about this sort of thing?
The main reason I'm looking at the machine is that its smaller, just over
10,000 pounds which makes moving it a whole lot easier. Starting with the
mid-'70s stuff all the machines I see run 14,000+ pounds which becomes a big
deal since I want it at camp.
I know, I know, buy it up there, the thing is there are 4 times as many
machines for sale down here. I dunno if you need to know a guy up there to find
anything but none of my internet searches bear much fruit.
-Curt
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