Hi Groundhog,
If it the type of strain relief I am thinking of, they are designed to be installed and never removed. I've been in the same predicament as you and used a pair of diagonal cutters to cut off the original power cord from the inside of the chassis, then pull the cord out of the strain relief, the strain relief will easily be removable now since the cord held it in place. Then install a new power cord through the same hole and install a new strain relief and then solder the wires in place and you are good to go. Hope this helps but if I didn't explain well or you need additional help, I will be glad to help you offline via phone or e-mail.
FYI - I like to put expandable sleeving over new power cords as it looks better and protects the cord. The only time to do that is when installing a new power cord.
Brad
e-mail: glassaudio@comcast.net
If it the type of strain relief I am thinking of, they are designed to be installed and never removed. I've been in the same predicament as you and used a pair of diagonal cutters to cut off the original power cord from the inside of the chassis, then pull the cord out of the strain relief, the strain relief will easily be removable now since the cord held it in place. Then install a new power cord through the same hole and install a new strain relief and then solder the wires in place and you are good to go. Hope this helps but if I didn't explain well or you need additional help, I will be glad to help you offline via phone or e-mail.
FYI - I like to put expandable sleeving over new power cords as it looks better and protects the cord. The only time to do that is when installing a new power cord.
Brad
e-mail: glassaudio@comcast.net