Unless you had it out in a downpour, leave it alone.

If you want to disassemble it for sh_ts & giggles....
Remove the two screws under the forearm.
Remove forearm and ramrod.
Push hinge pin thru, remove barrel.
Tinker around some,reassemble barrel/forearm,andnever do it again!!!!

If you have a composite stock, do not remove it,unless you have to.
The compression bolt, if overtightened, can crack the molded bracket.