Rap- There is hole for an allen head set screw on the right side of the plinth. The set screw loosens the arm for VTA or removal. Take the appropriate sized allen wrench, loosen the screw a couple of turns and gently pull the arm up out of it's hole.
There are a couple of screws holding the connector bracket on the rear of the plinth. Unscrew those and the bracket stays with the arm. (You probably need to do this first before removing the arm.)
Blot up the fluids with a paper towel or clean rag. As I recall, rubbing alcohol with clean up any residue.
Refer to your owner's manual for details. If you don't have one, I might be able to dig mine up and fax it to you.
There are a couple of screws holding the connector bracket on the rear of the plinth. Unscrew those and the bracket stays with the arm. (You probably need to do this first before removing the arm.)
Blot up the fluids with a paper towel or clean rag. As I recall, rubbing alcohol with clean up any residue.
Refer to your owner's manual for details. If you don't have one, I might be able to dig mine up and fax it to you.