I have a rapid reload trimmer. Today while cutting some weeds I ran into some fishing line that I didn't see and it stopped the weedeater. I was able to untangle a lot of it but it is stuck inside the cutting head itself around the inner spool. I would have to take the entire head off and I was unable to do that today. Any suggestions on how to remove the entire head from the assembly? I used a 1/2 inch socket but the entire spool turns and I'm unable to get the spool to stop turning when i try to take the 1/2' nut off...Any suggestion will be appreciated..