This task covers:
Air horn removed (TM 9-2320-280-20).
General mechanic's tool kit:
The following procedure applies to vehicles with R-134a
Remove capscrew (3), stud (4), and rear mounting bracket (2) from air horn support bracket (1) and
cylinder head (5).
Install rear mounting bracket (2) on air horn support bracket (1) and cylinder head (5) with
stud (4) and capscrew (3).