Good afternoon, disassemble a Philco PH 10 washing machine, in order to change the box that is broken, now take out the drum but it is difficult for me to remove a type of round thread that is on the shaft that has 6 ahugeros, I can't find the way I loosened The box I adjusted again to see if it turns but I do not see how to ask my question is if it is a thread if you have to hit it and go down I do not want to break another thing like the pot thanks,