M1070 HET ARMOR KIT
a. Secure doghouse floor panel using previous bolts as shown and enlarge six ∅3/8-inch holes, previously
drilled in Step 2, to ∅5/8 inch.
The following procedure is used for each of the six holes shown in Figure 3-42.
b. Install drill bushing (1) into hole and drill a hole through second wall of cab frame rail using a long,
∅5/16-inch drill bit.
c. Remove drill bushing and enlarge bottom hole (not seen) in second wall of cab frame rail using a long,
∅3/8-inch drill bit.
Secure lower panel and enlarge six
drilled holes to ∅5/8". Then insert
drill bushing into each hole and
match-drill. Enlarge lower holes to