www.ithacagun.com/downloads/model_37_field_maintenance_manual_090402.pdf
If the model is set up for that, follow the instructions in the owner's manual. If you don't have one, go to Ithaca's web site and request one.
The patent number for an Ithaca NID shotgun can typically be found stamped on the receiver or barrel of the shotgun itself. Additionally, you may refer to the owner's manual or documentation that came with the firearm, as it often includes patent information. If those sources are unavailable, you can also search online databases or forums dedicated to firearms for detailed specifications related to the Ithaca NID model.
Contact Ithaca for a manual
Yes, there is an owners manual available for a Charles Daly Model 500 double barrel shotgun. Various sources can be found online.
Ithaca may still be in business. Search for them on the internet. Check auctionarms.com, gunauction.com and eBay for owner's manuals. You will find a link to the Ithaca firearms schematics page below.
you can get one at: http://www.e-gunparts.com/product.asp?chrProductSKU=PDF0173
On an Ithaca model 600 shotgun, the serial number is typically located on the underside of the receiver, near the trigger guard. It may also be found on the barrel, often stamped on the left side. If you're having trouble locating it, consulting the owner’s manual or a gunsmith can provide additional guidance.
If you have a Model 30 pump shotgun, the barrel is not intended to be removed by the user. To do so requires specialized tools such as a receiver block and a barrel wrench. You can clean and lube the shotgun with the barrel attached to the receiver. Contact Savage Arms Customer Service and get an owner's manual for your shotgun.
Follow the instructions in the A5 manual using the link below.
Google RST Manuals. I recently bought one for my Ithaca/SKB XL300 for about $7.00. It is a factory re-print and taught me everything I needed to know. They were very good to deal with.
It should be listed in the owner's manual.
Send me your email and I'll send you a scan of the manual. I need the owners manual for the Ithaca SKB 500 O/U shotgun. Please e mail me with a PDF file or scan at temcowilly@aol.com. Thanks Bill