Ask a gunsmith for help
You can request a manual on the S&W website. You can ask a gunsmith for help.
Best left to a trained gunsmith
have a gunsmith show you. less chance of damage.
Best to ask a gunsmith for help. Various models and not all strip the same.
You can request an owner's manual for free at the S&W website.
Smith & Wesson made several different pistols in .45 ACP, including an M1911 pattern pistol. You'd have to be more specific about which model you had in mind before this question could be answered, as the different models vary quite a bit.
Contact S&W and ask for a manual or find a gunsmith and ask for help.
Best left to a trained gunsmith.
Knowing the model would help a little, but in general, you field strip it, put some solvent on it, let it sit a few minutes, wipe the solvent off, lube it, reassemble it. That's a very basic description.
Best to ask a gunsmith for help
take bolt off