How to get rid of annoying laser moving sound?

Hi, I need some help with this problem. I got myself a used sony NF420 cd player. It plays my cds but it makes a lot of loud cracking noise when it first reads the cd. I didnt own any portable cd players before so I am not sure if this is normal, but I have a feeling that this is a sign that the either the motor is dying or it needs some oil for the moving parts.