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SuperLite
®
17B
76
© ⅯⅯⅩⅡ Kirby Morgan Dive Systems, Inc. All rights reserved. Document # 120613005
7.7 Hose Assembly (SL-17A only)
The hose assembly provides for breathing gas flow
from the Side Block Assembly to the regulator for
the SuperLite
®
-17A. Both ends of the hose assembly
disconnect for complete removal.
The block itself is no longer available, but replace
-
ment hoses, o-rings, and valve components are still
available. The block was discontinued in 2005. If
your “A” block is damaged, your helmet can be
converted to a “B” sideblock with only a few ad
-
ditional parts.
Regardless of the hose condition it must be replaced
at least every two years and o-rings should be re
-
placed at least annually.
7.7.1 Hose Assembly Removal
Tools Required:
9/16 inch Open-end Wrench
11/16 inch Open-end Wrench
13/16 inch Open-end Wrench
O-ring Removal Tool
Torque wrench
1) Loosen the hose assembly at the regulator end
first, while holding the regulator inlet nipple with a
second wrench.
2) Disconnect the hose from the inlet nipple.
3) Loosen the hose at the side block connection.
4) Disconnect the hose from the side block.
“A” Side Block
Stud
Hose
o-ring
o-ring
7.7.2 Hose Assembly Inspection “A” style
Side Block
Inspect the hose fittings for slippage and thread
damage.
Inspect the hose for gouges, cuts, blisters, abrasions
or any obvious signs of damage or deterioration. If
the hose is worn or damaged it must be replaced.
Inspect the o-rings. If they are worn or cracked they
must be replaced. Replace the hose O-ring during
overhauls and/or annually.
NOTE: KMDSI recommends the hose assembly
be replaced at least every two (2) years even if the
condition appears good.
The hose and o-rings must be inspected on a regular basis.
7.7.3 O-Ring Replacement
1) Remove the o-ring from the side block end of
the hose assembly by pinching it with your fingers
and sliding it up the threaded end of the assembly.
Install a new o-ring that has been lightly lubricated.
2) To remove the o-ring on the regulator end of the
hose, you will need to use an o-ring pick made of
brass or plastic. Care must be taken not to scratch or
damage the sealing surface on the hose fitting when
removing the o-ring. If the fitting is gouged it will
leak breathing gas.
7.7.4 Hose Assembly Replacement
1) Thread the hose assembly into the side block and
tighten with a wrench.
2) Install the hose assembly fitting onto the end of
the regulator inlet nipple. Tighten the fitting while
holding the nipple with a second wrench.