Got this spring compressor in 3 days.. pretty decent ship time. All looked good until I started trying to COMPRESS a spring. Everything worked EXCEPT the jack. It would compress the spring 'some', but would quickly run out of 'poop. It would compress, but the spring would then force the jack cylinder back down and would compress no further. I checked the fluid and found it low - filled it up, but had the same problem. It would not compress the spring nearly far enough to do the job. I finally tried pumping the foot pedal really FAST and manged to get the spring barely compressed enough to get it loose. Not sure how I'm going to get it back on though. The jack doesn't seem to be up to the task.