KMB 18 & 28 MANUAL
page 40
© Copyright 1970-2003 Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 010518001
4) Rinse the Band Mask thoroughly with fresh
water. Turn the free flow valve knob (85), auxil-
iary valve knob (100), and regulator adjustment
knob (47) while rinsing to prevent salt from
accumulating under these valves. Run water un-
der the regulator cover (51), and in the regulator
body (39) through the air delivery tube located in
the oral nasal (9). Rinse the hood (2) both inside
and out.
Wipe the inside of the Band Mask out with a
clean, damp rag. Do not depress the purge button
while rinsing the regulator as this action will
permit foreign matter back into the inlet valve
(59) and seat.
5) Screw the demand regulator adjustment knob
(47) all the way out. This will prolong the life of
the inlet valve seat (59) and keep the internal
adjustment correct.
6) Lubricate the shaft of the nose block device (3)
with silicone grease. Push and pull the device so
the lubricant covers the entire shaft. Wipe any
excess from the shaft with a clean cloth.
Fig. 5.6 Lubricate the shaft of the nose block device.
7) When replacing the hood (2) after it is dry,
make sure that the hood is properly captured by
the mask bands (16, 68). Generally speaking, a
used hood will take a “set” and show the signs of
compression from the bands (16, 68). This set
will correspond to the depression in the mask
frame (17) where the bands (16, 68) compress the
hood.
When properly installed, the front edge of the
hood must protrude a minimum of 1/4 to 1/2 inch
(6.0-12.0 mm) all the way around the mask from
beneath the bands. The screws (15) holding the
bands should be tightened to 26 inch pounds (28
kg cm) of torque. As hoods age and the cells of the
neoprene break down it will be possible to tighten
the bands to the point where the bands almost
touch.
Fig. 5.4 Remove the earphone covers so the earphones can
dry completely.
Fig. 5.5 The mask should be rinsed thoroughly with
fresh water at the end of each diving day.
