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STEP
3. EGS Inspection
4. Check the Mask
5. Attach the
Umbilical
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PROCEDURES
Diver/Tender: Check the following (a-e):
a. Visually inspect all EGS hoses for signs of
damage.
b. Check to ensure the cylinder is within the VIP
and the hydro dates.
c. Ensure the First Stage Regulator pressure
setting and the Over Pressure Bleed/Relief
Valve settings have been checked within the
past month. (Maintenance Log).
d. Inspect the Safety Harness and Cylinder
Retainer for wear and damage.
Repair/replace as necessary.
e. Document inspection/maintenance in
Maintenance Log (Appendix 3).
Diver/Tender: Check the following (a-d):
a. Rotate the Regulator Adjustment Knob in
fully (clockwise), then rotate out
(counterclockwise) 3 – 4 rotations to check
for smooth operation.
b. Open the EGS Supply Valve on the cylinder.
Log the pressure _______ psig. Then open
the Emergency Supply Valve on the Side
Block.
c. Momentarily open the Mask Defogger/Steady
Flow Valve ¾ to 1 full turn. Check for a
strong flow of gas out of the Defogging Train,
and then close.
d. Check for gas escaping from the One Way
Valve.
Tender:
Blow down the Umbilical and attach it to the
Umbilical Adapter on the One Way Valve.
Diver/Tender: Check the following (a-d):
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INITIALS
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