take out the one screw that holds on the wood. You will see a octagon shaped or round nut that has a threaded hole in it, This must be taken off and the u-shaped clip also taken away, The barrel then must be pulled out of the action slightly twisting it will help but caution as you may bend or break the ejector. Once the barrel is out...then the bolt assembly will slide forward and when it reaches the end of the slot, pull the cocking handle out and the bolt should slide right out. I use a brush and oil to clean the action tube and lightly oil again before assembly. Do not attempt to take the bolt ass'y apart as it is pressed together and disassembly ruins the peaning. Clean the bolt good with 0000steel wool and take off the firing pin and clean the slot etc. Quite simple to reassemble too.
The mag holder is held on by 2 screws and slides rearward then can be lifted away, then the back bolt holding the trigger mechanism is removed and all the ass'y cleaned without disassembly. If you need any more help...please PM me