Nick,
Just the opposite was true in the period for British Soldiers.
From Cuthbertson's System for the Complete Interior Management and Oeconomy of a Battalion of Infantry, 1768
“Page 91,
VII.
Every Soldier (and in a very particular manner a Recruit) should be instructed by the Serjeant or Corporal of the squad of Inspection he belongs to, in the proper methods of cleaning a firelock, how to take the lock asunder, and how to join the several parts again, making him perfectly acquainted with the name and use of each; that nothing may ever be out of order, through his unskillfulness or ignorance.
VIII.
It should be insisted on, that a Soldier at all times keeps his arms in such a state of perfection, as never to be ashamed to shew them: by having the inside of the lock well oiled,
Page 93
XII
It is absolutely necessary, that every Soldier be furnished with a Worm and Turn-Key, else it should be impossible to clean the inside of his barrel of his Firelock, in the manner which ought to be expected, or to manage the Screws about the Lock, without having recourse to his bayonet; a practice that must be forbidden, otherwise, the edges will always be full of notches, and by that means have a most unsightly appearance….. “
(though the above is a little confusing, Cuthbertson means using a bayonet to loosen/tighten the side lock screws of the lock will bugger up the screw slots)
https://books.google.com/books?id=1SxEAAAAYAAJ&pg=PA89&source=gbs_toc_r&cad=4#v=onepage&q&f=false
There are further quotes about the daily practice of removing, cleaning and oiling the lock and replacing it in stock in Dr. Bailey's works, in "A soldier like way," and other sources. The only time they were excused from this practice was preparation for or during battle.
However, full disassembly and reassembly of the Lock was only allowed by Serjeants and Artificers/Armorers.
Gus