Figure 8-11 - Donning the back strap model of the self-contained breathing apparatus.

Step 4: Continue to carry the cylinder overhead toward the back where it can be released to the back.

Step 5: Lean forward when the cylinder is released so that the cylinder will not slide down the back. Fasten and adjust the upper chest strap to hold the demand regulator in position. If equipment is donned with the chest strap fastened, adjustment is enough.

Step 6: With both hands on their respective sides, grasp the two harness takeup straps located near the chest, just below the armpits, and pull down and out to tighten the equipment firmly to the back.