TROUBLESHOOTING NEPTUNE II NIRA

VISOR FOGS
WA RNING SIGNAL THAT MASK IS NOT POSITIONED CORRECTLY ON FACE!
a) oranasal mask positioned incorrectly or pinched
b) oralnasal mask seated improperly in MI-1 breathing assembly
c) top harness straps pulled to tightly – loosen
d) bottom harness straps not pulled tight enough

AIR LEAKS
a) Hair / hood trapped inside mask skirt
b) Sewing on hood – skirt will not necessarily seal on all hoods, especially if sewing on hood is where mask skirt fits
c) Straps pulled to tightly or improperly

REGULATOR FREE FLOWS
a) Adjustment knob opened too much—regulate by closing knob in face-down position
b) Regulator purge button has sand / pebbles stuck inside
c) Regulator needs servicing*
d) First stage intermediate pressure not 135 psi / 9.5 bar

REGULATOR HARD TO BREATHE THROUGH
a) Adjustment knob closed too much—regulate by opening knob in face-down position
b) Aspiration knob pushed to red instead of green
c) Regulator needs servicing*
d) First stage intermediate pressure not 135 psi / 9.5 bar
e) If purchased before June 1 ,1999 request upgrade kit

FFM VIBRATES
a) Harness straps not adjusted properly - tighten bottom straps
b) Adjustment knob opened too much
c) NIRA adjustment too soft – make proper adjustment with adjustment tool

CLAMPING BAND TEARS
a) improper removal technique

NIRA COVER PLATE UNSCREWS
a) request new NIRA cover plate lock

*Ocean REEF recommends that the regulator be serviced at least once a year, or after 100 dives. This should only be performed by an Ocean REEF dealer or authorized Ocean REEF repair station which uses original spare parts. This also applies to any periodic servicing and/or repairs required.