The link at the bottom of this page will take you to the Ruger website for your pistol. You can download the owner's manual for your pistol, which includes instructions on assembly and maintenance.
Go to Ruger's web site and request a manual.
You can request an owner's manual for free on Ruger's web site.
You go to the Ruger website, Customer Service, and download the Owner's Manual. There are also several Youtube videos on this.
You can request a manual for free at Ruger's web site.
Take it to a gunsmith.
Narrow down your request please. Rifle ie 10-22, pistol, etc..
What Model 51 pistol or a rifle and what model?
Find a good gun smith.
Find a gunsmith and ask for help
Best left to a gunsmith.
Ask a gunsmith for help
To clean a Ruger .22 Long Rifle auto pistol, first ensure the firearm is unloaded and safe. Disassemble the pistol according to the manufacturer’s instructions, typically removing the slide and barrel. Use a cleaning rod and patches soaked in a suitable gun cleaning solvent to clean the barrel, and a brush to scrub any fouling. Wipe down the frame and parts with a cloth, lubricate moving parts lightly, and reassemble the pistol once everything is clean and dry.