Aqua Lung Black Diamond SL BC - Manual (Page 21)

20 Black Diamond Owner’s Manual Black Diamond Owner’s Manual 21
PRE-DIVE INSPECTION
Before each use, the BC must be given a thorough visual inspection and
functional test. NEVER dive with a BC that shows signs of damage to its
bladder or valves until it has received a complete inspection and service
from an authorized dealer.
Inspection Checklist:
1. Connect the power inflator to a source of clean, compressed air, via
the LP quick disconnect hose. Depress and release the inflator but-
ton intermittently to ensure that the airflow is unobstructed, and that
the airflow stops completely when the button is released.
2. Manually operate the overpressure relief (OPR) valves by pulling
on the attached ball and cord to release air from inside the BC, and
then fully inflate the BC until the OPR valve opens. Examine the op-
eration of the OPR valves by repeatedly inflating the BC to ensure
that they open to relieve excess pressure, yet close immediately
afterward to allow the bladder to remain taut and fully inflated.
3. Check the function of the oral inflator button, dual exhaust valve,
and overpressure relief/ manual dump valve (see Deflation Methods
on page 20) to ensure a rapid and unobstructed exhaust from each
valve. Fully inflate the BC once again, and disconnect the Power
Inflator from the compressed air supply and listen closely for any
leaks.
WARNING: If you can hear any leaks, or if the bladder be-
gins to deflate within 5-10 minutes, DO NOT attempt to use
the BC until it has received service from an authorized
dealer.
4. Make a final check of the cylinder band’s tension to ensure that it
has not loosened due to stretching. Retighten if necessary.
5. Before entering the water, check both weight pouches to ensure
that they are correctly fastened to the BC.
WARNING: Loss of the releasable weight pouches can oc-
cur if the SureLock™ buckle mechanism is not properly
engaged. Involuntary release of both weight pouches can
cause a sudden increase in buoyancy causing a rapid as-
cent, and could lead to serious injury or death due to arte-
rial gas embolism, decompression sickness, or drowning.