Having just bought a decent md65 I ve come across a problem!Cant move the tailstock..there are 2 allen bolts on back which i ve removed altogether..One may be an ‘unpinch’ bolt instead of a pinch bolt..there is a threaded hole opposite it on the frint but no bolt in it..The tailstock does move with a large enough mallet but I m not going to do it again…machine in good clean cobdition..Any ideas please as I have none!