www.savageparts.com has a schematic. I advise against disassembly unless you absolutely have to. sales@countrygunsmith.net
The owner's manual provides instructions for disassembly to the extent necessary to properly clean the shotgun. Replacement owner's manuals are available on the Remington web site.
Basic instructions can be found in the Citori Owners manual at the link below.
Get a copy of the Gun Digest Shotgun Assembly/Disassembly manual. It should have the Mod 67.
If the owner's manual doesn't have instructions, seek out a qualified gun smith.
Follow the instructions in the owner's manual. If you don't have one, find a gunsmith/gun store.
Send me your email I'll send you a scan of the manual.
Send me your email & I'll send you a copy of the manual.
Follow the instructions in the owner's manual
Probably at Savage customer service website (Savage bought Stevens in 1920)
A Sears Moels 300 is a Winchester Model 1400. For a manual, go here: http://www.stevespages.com/page7b.htm For disassembly instructions, get a copy of Gun Digest Assembly/Disassembly for shotguns. Aslo, gunpartscorp.com has an on-line exploded diagram for the model 1400.
Numrich Arms should have them.
Follow instructions in owner's manual.