M1070 HET ARMOR KIT
a. Raise and hold upper wheel well panel assembly firmly against cab underbody while aligning the studs
and slots and pushing the 90-degree joiner bracket firmly against bottom cab frame rail surfaces.
The following procedure is used for each of the holes shown in Figure 3-30.
b. Place drill bushing (1) into hole in upper wheel well panel.
c. Drill through first wall of cab frame rail using a short, ∅5/16-inch drill bit.
d. Remove drill bushing and enlarge the hole-size in first wall of cab frame rail to ∅5/8 inch.
e. Install drill bushing (2) into hole and drill a hole through second wall of cab frame rail using a long,
∅5/16-inch drill bit.
Remove drill bushing and enlarge hole in second wall of cab frame rail using a long ∅3/8-inch drill bit.