Section 7.227. Bottom arrangement

(a) At the bottom landing the clear area shall not be smaller than the area enclosed by the guardrails on the floors above, and any wall in front of the down-running side of the belt shall be not less than 48 inches from the face of the belt. Such space shall not be encroached upon by stairs or ladder.

(b) The lower, or boot pulley shall be installed so that it is supported by the lowest landing served.

(c) A mounting platform shall be provided in front or to one side of the up-run at the lowest landing, unless the floor level is such that the floor or platform is at or above the point at which the upper surface of the ascending step assumes a horizontal position.

(d) An allowance for belt stretch shall be made in the original layout.