I have just purchased a Steris 5085 surgical table at auction and everything seems to work except for the headrest locking mechanism. The left side (patient's head perspective) has the ratcheting locking mechanism and that works but the right side has a friction mechanism that is "free wheeling". There is a hole for something like a set screw but then again, a set screw would provide too much friction to allow for position changes. Does anyone know what part that I will need? Thanks
Equipment: Steris 5085 surgical table