OK- here's the straight skinny:
Art. 286. (323). Junior Warden: Not Affected: When.
The Junior Warden is not affected by the Senior Warden having to act as Worshipful Master, nor by the absence of the Senior Warden from a meeting at which the Master is present, nor by vacancy in the office of Senior Warden, but retains his station and a pro tempore Senior Warden shall be appointed.
As one can read, only the JW is affected. He leaves his station only in the absence of both the WM & SW, in which case he presides over the Lodge. None of the minor officers are affected by this.
Art. 286. (323). Junior Warden: Not Affected: When.
The Junior Warden is not affected by the Senior Warden having to act as Worshipful Master, nor by the absence of the Senior Warden from a meeting at which the Master is present, nor by vacancy in the office of Senior Warden, but retains his station and a pro tempore Senior Warden shall be appointed.
As one can read, only the JW is affected. He leaves his station only in the absence of both the WM & SW, in which case he presides over the Lodge. None of the minor officers are affected by this.