NUMRICH GUN PARTS SELLS THEM ON THEIR WEB SITE
You can locate a schematic at http://www.remington.com/pdfs/om/om_11001187.pdf.
Go to Numrich Gun Parts Corp.they should have what you seek.
What are you intending to do? Do you just want to separate the two halves or are you looking for a complete disassembly? If you just want to break the rifle down into two parts, you would need to back out the take-down screw located on the left side of the rifle. If you want complete disassembly instructions, they get quite elaborate. If any parts were get lost you may have a tough time replacing those parts. Go to Remington Arms web site as they may have a schematic available for this fine little rifle.
Website for gunpartscorp
The correct answer is Numrich gun parts. Or, just google Marlin A1 schematic and it will show you a list of parts that you can order and a complete schematic to view.
There are 3 options,,call Remington and ask, they do not have it posted on there web site but might have it around. Buy it---http://www.gungarage.com/remingtonacc.htm Go to a gun dealer and ask, most have one for repair parts.
See related links I put a pointer to e-gunparts.com for the model 16, the have many schematics there as well as the parts page online.
http://www.remingtonsociety.com/rsa/service search page, several places..
See the link below. This will take you to the schematic for an RG 14 at the Numrich gun parts corp website.
Check the Remington Society page here: http://remingtonsociety.com/rsa/service Also e-gunparts.com
A darn good site. http://www.urban-armory.com/diagrams/rem514.htm