If you are talking about complete disassembly you should probably buy yourself a copy of "The Gun Digest Book Firearm Assembly Part 5: Shotguns" by DBI Books, inc.
If all you want to do is remove the barrel then after activating the safety turn the magazine end cap clockwise until it stops then turn the barrel 90 degrees clockwise and remove. You can certainly continue disassembly if you want to try as this is not a complacated shotgun. The description to do so though is quite lengthy.
I am assuming you are taking abouit either a Model #37 or a M#87
yes, i own one. model 52 featherlite
you can get one at: http://www.e-gunparts.com/product.asp?chrProductSKU=PDF0173
Remove stock from shotgun
The Ithaca 37 Featherlite shotgun with a serial number starting with 98 was likely manufactured in the late 1970s to early 1980s, as the serial numbers in that range correspond to that production period. The value of such a shotgun can vary widely based on its condition, ranging from around $300 to over $800 for models in excellent condition. To determine if it was manufactured at the Ithaca, New York plant, you would need to consult specific production records or a detailed database, as the Ithaca plant closed in 1986 and production was later moved.
1969
This is a very nice shotgun with the woodstoc quite nicely refinished, natural and steel-wool finished with a polyuerathane finish
Sir, I was offered very nice condition Itahca Featherlite with 30" barrel, very little service for $200 Canadian, yesterday 24Apr05. The gun looks like it may be from the mid-60's. Hope this helps. Stewart
how do you disassemble a model 49 ithaca 22 rifle
You may contact Ithaca arms and they will date your shotgun for you.
Depending on the condition of this weapon, it is valued between $175 and $300.
To remove the plug from an Ithaca Model 51 autoloader shotgun, first ensure the firearm is unloaded and pointed in a safe direction. Disassemble the shotgun by removing the barrel and then locate the plug, which is housed in the magazine tube. Use a flathead screwdriver to unscrew the retaining screw if present, then carefully pull the plug out of the magazine tube. Reassemble the shotgun once the plug is removed, ensuring all parts are secure.
Your serial number indicates that your Ithaca shotgun was made in the year 1920.