© Miller Diving All Rights Reserved Document # 030715001
13
3-C NOSE CLEARING DEVICE
DESCRIPTION:
The Nose Clearing Device aids in equalizing the sinus
and inner ears. During the diver's descent, the rod and
pad extend into the interior, where the nose may be
blocked for equalizing. The Nose Rod is sealed water tight
by two O-rings which are housed in a Packing Nut. The
rod is pushed in and out by the Nose Knob.
REMOVAL AND REPLACEMENT
1. Unscrew the Nose Device Knob.
2. Pull out Nose Device Rod from inside Helmet.
3. Remove Slotted Nut and Washer.
4. Pull Oral Nasal free from Nose Device Housing.
5. Unscrew and remove Nose Device Housing from Hel-
met and Face Ring.
6. Remove Packing Nut. Remove the two O-rings inside
the Packing Nut.
7. Before replacing the two O-rings, lubricate them with
Silicone Grease to allow the Nose Rod to slide in and out
freely. Tighten Packing Nut snugly against the Housing.
8. To replace unit, screw Nose Device Housing onto Hel-
met and Face Ring. A small amount of Silicone Sealant
should be applied to the hex and thread of the Nose Hous-
ing before its placement. Tighten Nose Housing securely.
9. Replace Oral Nasal on Nose Device Housing and se-
cure with Slotted Nut and Washer.
10. Replace Nose Rod inside Helmet and secure with
Nose Knob.
3-1)
ORAL NASAL MASK
DESCRIPTION:
The Oral Nasal is attached directly to the Demand Regu-
lator. Inhaled gas passes from the Regulator through the
Oral Nasal to the diver. Exhaled exhaust gas from the
diver goes directly back through the Oral Nasal to the
Regulator and out Regulator Exhaust. The Oral Nasal
reduces dead air space to a minimum to prevent C0
2
buildup. Gas from Free Flow Valve while on steady flow,
passes into the Oral Nasal through the two inlet discs to
the diver and out through the Regulator Exhaust.
REMOVAL AND REPLACEMENT:
1. Remove the Nose Rod and Nose Knob.
2. Remove Slotted Nut and Washer to release Oral Na-
sal from the Nose Device Housing.
3. Remove Microphone and Wire from Mask.
4. Pop the Mask out of the groove in Mount Fitting. Fit-
ting may be removed if necessary by removing the six
Screws which hold the Regulator Retainer Plate.
5. To replace Oral Nasal Mask install Mount Fitting with
O-ring trapped between Regulator and Regulator Re-
tainer Plate.
6. Install Microphone and Wire.
7. Pop the Oral Nasal tube into Fitting Groove with a
blunt screwdriver.
Pop the Oral Nasal tube into Fitting Groove with a blunt
screwdriver.
8. Push Oral Nasal onto Nose Device Housing.
9. Secure with Washer and Slotted Nut.
10. Install Nose Device Rod and secure Rod with Nose
Device Knob.
