I agree with ron and would add if it is motorized then guarding any chains, wenches etc. The other obvious issue to look into during the erection and dismantling operation is also Lockout/Tagout or control of hazardous energy
Wouldn't security guards mounted on the side rail of a ladder violate 29 CFR 1910.27 (c)(2) Ladders without cages or wells. A clear width of at least 15 inches shall be provided each way from the centerline of the ladder in the climbing space, except when cages or wells are necessary.
as well as...