Pre-Issue Inspection - Aqua Lung SEA MK User Manual

20

PRE-ISSUE INSPECTION

Before each use, the unit must be given a thorough visual inspection and
functional test. NEVER use an SEA which shows signs of damage, leakage or
substandard performance until it has received inspection and service from a
factory trained service technician.
1. Carefully inspect the first stage to make sure all external components
(pressure gauge, swivel port plug, safety plug, etc) are properly secured.
2. Ensure the medium pressure hose is securely connected to the second
stage. Inspect the hose and hose fittings to ensure that there is no blistering,
cuts, or corrosion present.
3. Visually inspect the entire system for any external damage, such as dents,
gouges, cracks or severe external corrosion.
4. Confirm the handwheel is closed and the system is depressurized. Inspect the
pressure gauge as follows:
• Dial Pressure Gauge - Ensure gauge reads "0 PSI / BAR" (Fig. 19).
• Pin Pressure Gauge - Ensure plunger is "Dropped Flush" with the
indicator body (Fig. 20).
"0 PSI / BAR"
Figure 19
CAUTION:
the pin gauge "dropped flush" with the indicator body when the hand-
wheel is closed and the system is depressurized. DO NOT attempt to use
the SEA if the gauge indicates pressure until it has received inspection
and service from a factory trained service technician.
The dial gauge should read "0" PSI / BAR" or the plunger on
SEA MK / LV2 User's Manual
Plunger Dropped
Flush
Figure 20