Tinkerer
Senior Member
Doesn't matter is you start out with a cylinder extended or retracted.
It would be better to take the hoses off of the cylinders to prevent contaminated oil from staying in the system.
What I mean is, purge the lines with clean oil. Then connect only one hose so you can move the rod to extract the contaminated oil from the open side of that cylinder.
Two cylinders at the same time if it is a pair. Like on the clam-bucket or loader or hoist.
It would be better to take the hoses off of the cylinders to prevent contaminated oil from staying in the system.
What I mean is, purge the lines with clean oil. Then connect only one hose so you can move the rod to extract the contaminated oil from the open side of that cylinder.
Two cylinders at the same time if it is a pair. Like on the clam-bucket or loader or hoist.