Nose Block Device Replacement - Kirby Morgan 77 Operation And Maintenance Manual

Kirby Morgan 77
®

8.3.2 Nose Block Device Replacement

1) Prior to reassembly, lubricate the two o-rings
(82).
2) Slide the shaft through oral nasal mask in the hel-
met shell.
3) Place both o-rings on the shaft, followed by the
packing nut and the knob.
4) Tighten the packing nut until snug. Do not over
tighten, as this will make it difficult to slide the nose
block device in and out.
5) Tighten the knob with the pliers, padded by a
cloth, while holding the pad end with your hand.
Install the nose block
device through the
interior of the oral nasal
mask.
Properly installed nose block device.
Do not tighten the nose block packing too much or
the nose block device will not slide easily.
© ⅯⅯⅩIⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 130318003 125