All oils in this systems got a life time period, so for prevent malfunctioning, the better is to changue it.
For avoid doing a hugue mess on this, keep the things very simple and do not dissasembly many parts
I show you how to make a Vaccum oil recovery unit.
You will Need:
A vaccum pump (Im using an old one I got lying around)
A big glass vessel (Make shure this is from something as cherrys or any other preserving food)
Two service ports (This ones are from Refrigeration Service ports)
A piece of hose (This one is 1/8" clear hose, you can use anything you got.)
Lets get started
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Step 1: Assembly the Jar.
This is a very simple process, you need to drill two holes on the lid of the jar,
put the service ports on it and use some old and trusty epoxy-glue
Let them dry for a few minutes and assembly completly.
Step 2: Get the Rest Done
At this point am just using some scrap cooper tubing and swage to make it
a litte bit more wide than the small hose.
Step 3: The Target
This is the firs of two places were I used this device.
Is the brake fluid reservoir, just close the jar, turn on the pump and put the hose on it.
Step 4: The Results
As you can see, the oil is very brown and dirty.
Considering the brand new fluid is transparent, well you can imagine the degree of contamination.
Step 5: A Small Clip
And another... In the steering wheel pump...