As others have said, you will wonder why you didn't buy one sooner. A lot less faf and space needed than a floor jack with the same lifting capacity and less effort too! I had to change the airline fitting, and would advise you to do this before assembly of the jack if you need to change it. I found it was best to use some heat (blow torch on low) to soften the thread sealant on the original fittings. I also had to move the safety pressure valve to get access to remove the complete inlet valve as the fitting in it was really stubborn, and it was better than heating the complete valve in situ. Other than that I resealed the threads on reassembly using a thread sealant for compressor fittings, to ensure the inlet valve was lined up correctly.
shirley mullins 
