Face Port And Nose Block Device Removal - Kirby Morgan KMB-18 A/B Operation And Maintenance Manual

KMB 18 & 28 MANUAL
DANGER: Never use a third party
face port. Its thickness or diameter may
be incorrect and cause it to flood. It could
also be made of inferior materials causing
it to fail. This could be fatal.
6.3.2 Face Port (27) and Nose Block Device (3)
Removal
Tools Required:
7/16 inch Open End Wrench
1/4 inch Flat Blade Attachment on Torque Screw-
driver
Slip Joint Pliers
1) First remove the nose block device knob (34)
then the packing nut (33).
Fig. 6.2 Remove the nose block device knob.
Fig. 6.3 Remove the nose block packing nut.
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© Copyright 1970-2003 Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 010518001
2) Slip the O-rings (32) off the nose block shaft
(3) and pull the nose block device out through the
interior of the oral nasal mask.
3) Next, unscrew the port retainer screws (29,
38). Pull the retainer (28) clear of the Band Mask
frame (17).
4) Be sure not to lose the O-ring (31) that is
located on the back side of the port retainer (28)
at the nose block device packing.
5) The four whisker spacers (36) must not be
misplaced. They will usually be found lodged in
the whisker (35).
6) Remove the old port (27) and sealing O-ring
(26).
Fig. 6.4 Removing the port retainer screws.