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48
MONTHLY INSPECTION AND MAINTENANCE CHECKLIST (continued)
STEPS
COMMUNICATIONS
NOSE CLEARING
DEVICE (NCD)
ORAL-NASAL MASK
INHALATION VALVE
HOUSING AND
INHALATION VALVE
(one way valve)
Aqua Lung G3000SS Diving Helmet Operations & Maintenance Manual
PROCEDURE
•
Without removing the comms system, check
condition of speakers and microphone by
visual inspection. If inspection reveals poor
quality of sound, replace with new speakers
and/or microphone.
•
Without removing them, check communication
posts and terminal block for insulator cracks or
damage. If necessary, replace with new posts.
NOTE: Refer to the communications section
of the Operations and Maintenance Manual
for guidance.
•
Check NCD for ease of movement and then
remove NCD and check for damage to the
NCD body and components.
•
Visually inspect o-rings and neoprene pad for
damage and/or deterioration and if necessary
replace. Lubricate o-rings lightly as required.
NOTE: Refer to the nose clearing device
section of the Operations and Maintenance
Manual for guidance.
•
Remove oral-nasal mask and check for damage
(e.g. splits, cuts, tears) and/or deterioration. No
damage is permitted.
NOTE: If no damage or deterioration is found,
wash oral-nasal mask with soap and water,
rinse with fresh water and allow to dry.
NOTE: Refer to the oral-nasal mask section
of the Operations and Maintenance Manual
for guidance.
•
Remove and visually inspect both components
for damage and/or deterioration. DO NOT remove
the inhalation valve from the valve housing.
NOTE: All spokes of the "wagon wheel"
must be present.
NOTE: Refer to the oral-nasal mask section
of the Operations and Maintenance Manual
for guidance.
INITIALS
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