25
a. Drill a hole in a marked position to a depth of 60 mm using a hammer drill with a Ф10
mm bit.
b. Partially tighten an expansion bolt, vertically insert it into the hole, and knock the
expansion bolt completely into the hole using a rubber mallet.
Figure 4.11
Drilling a hole and installing expansion bolt
Step 5 Align the rear panel with the holes, insert expansion bolts into the holes through
the real panel, and tighten the expansion bolts to a torque of 2-2.5 N·m using a torque
wrench, as shown in Figure 4.12.
Figure 4.12
Installing the rear panel
