Yes, but it will take some doing to find one.
Take it to a gunsmith and ask for help
You can get a manual at S&W's website for free.
You need to ask a gunsmith for help.
S&W never made a Model 69 semi-auto pistol
Not made to be taken apart. Will cost more to repair it than it is worht in most cases.
Which one?
You can oil the catch by taking the gun slide apart and oil the catch and the metal part on the slide.
take apart the whole gun
Ask a gunsmith for help
Ask a gunsmith for help or ask the maker for a manual
Most are not made to be taken apart to begin with.
Best left to a gunsmith