SuperLite
®
17B
68
© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613005
WARNING
Avoid skin contact with acetone. Wear
rubber gloves. Acetone can damage the
nervous system.
The air train gasket forms a seal between the air train and
the interior helmet shell.
7.3.4 Side Block Assembly Replacement
If a new side block is being installed, make sure it
aligns correctly in the holes of the helmet shell by
dry fitting it before applying RTV silicone sealant.
1) A light application of silicone sealant must be
applied to the side block prior to installation on the
helmet shell. The sealant should surround the stud,
alignment screw, and air inlet on the block. Use only
Dow Corning
®
RTV 732 Multi Purpose sealant or
equivalent. This work must be done in a well-venti
-
lated area.
Care must be taken to avoid sealant entering the air
opening in the side block. Be sure to remove all excess
silicone sealant before it sets up. Acetone can be used
to dissolve uncured sealant, after tightening.
2) Fit the side block to the helmet shell.
3) Thread the screw through the helmet shell and
lightly tighten into the side block body.
4) Slide the flat washer and the lock washer onto the
stud. Run the stud nut down the stud and tighten to 35
inch pounds (4 Newton meters).
Do not overtighten
!
5) Tighten the screw to the correct torque, 20 inch
pounds. Clean off all excess silicone sealant. Acetone
may be used for this purpose.
6) Place the air train gasket on the base of the air
train. The knob on the base of the air train gasket is
designed to cover the recessed hole where the screw
that helps maintain the position of the air train is in
-
stalled. Slip the air train over the stud. Align the air
train with the upper edge of the view port opening in
the helmet shell.
7) Place the washer on the stud and tighten the nut
until the washer lays flush on the air train, 15 inch
pounds.
Do not overtighten
!
8) Test the side block prior to diving to ensure that no
silicone sealant is blocking the air flow to the helmet.
If it is, it must be cleaned out prior to diving.
Engages the tube on the
air train.