KMB 18 & 28 MANUAL
page 62
© Copyright 1970-2003 Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 010518001
6.5.2.2 KMB 18B & 28
Tools Required:
11/16 inch Open End Attachment on Torque
Wrench
7/8 inch Open End Wrench Attachment on Torque
Wrench
7/16 inch Open End Attachment on Torque
Wrench
1/4 inch Flat Blade Stubby Screwdriver
On the Kirby Morgan Band Mask 18B and 28, the
bent tube assembly (117b) must be entirely re-
moved before removal of the side block assembly
(94b) is started.
1) Completely unthread the bent tube assembly
(119b) nut from the side block (94b).
2) Using two wrenches, hold the bent tube mount
nut (117b) with the first wrench. With the other
wrench, loosen the jam nut (61c) by turning the
wrench DOWN. (Fig.6.23)
3) Unthread the mount nut until it comes free,
then pull the bent tube assembly (117b) straight
out of the regulator inlet nipple (61b).
4) The side block assembly (120b) is ready to start
removal.
The air train (21) that fits over the stud (93) is
made of soft material. The nut (22) should always
be tightened just to 20 inch pounds (23 kg cm) to
prevent crushing the air train cup. RTV silicone
rubber compound is used to form a gas tight seal
between the side block assembly (120a/b) and the
Band Mask frame (17).
6.5.2
Sideblock Assembly (120A/B)
Removal
6.5.2.1 KMB 18A
Tools Required:
7/16 inch Open End Attachment on Torque
Wrench
5/8 inch Open End Attachment on Torque Wrench
13/16 inch Open End Attachment on Torque
Wrench
1/4 inch Flat Blade Stubby Screwdriver
On the Kirby Morgan Band Mask 18A, discon-
nect the hose assembly (119a) at the regulator
(63a) end of the hose. Be sure to use a backup
wrench on the “A” nipple (61a). The side block
assembly (120a) is ready to start removal. (see
Section 6.5.2.3)
Fig. 6.22 Disconnect the bent tube assembly from the
sideblock.
Fig. 6.21 The hose assembly must be removed prior to
removal of the side block.