Open the port on the sealed end and extend the rod out to the max...wrap the end of the gas cylinder with a wet rag...just take your time and once the new end is tacked in place take it even slower...start the finish bead and then stop and let it cool down...refresh the wet rag and repeat the...
Everlast powerarc 200sti is one of good tig welding machine i have experienced so far, in my starting career i used miller and everlast machines, everlast welders are always good compare to miller.
I had welding gloves couple of years ago, i bought them from a local welding store but they were worth using for firewoood works, i only have a picture of them may be you can google it find the model. Thanks