(13) Position and connect pressure regulator to
service pressure gauge tube assembly (7).
(14) Position and connect supply manifold to
(15) Position and connect oxygen recharge
assembly (3) Position and connect the
recharge valve to supply manifold tube
(16) Position and connect cam lever valve to
supply manifold tube assembly (2).
(17) Position and connect cam lever valve to
oxygen gas cylinder pressure gauge tube
Do NOT place unwanted torque on tube
assemblies when valves and manifolds
are tightened on panel.
(18) Tighten supply and scuba manifolds and
valves Check to be sure that no tube
assembly has been placed in an unusual
AIR/OXYGEN PURIFICATION CYLINDER
GROUPS-TYPE II (AIR/OXYGEN) SERVICING UNITS
(See Figures 7-2 and 7-3). The following paragraphs
contain disassembly, cleaning, inspection, repair or
replacement and assembly instructions for the Type II
(Air/Oxygen) Purification Cylinders Group.
Type II (Air/Oxygen) Servicing Unit - Type I (Air)
Purification Cylinder Group (See Figure 7-2).
See paragraph 6-7, Air Purification Cylinder
Group (Type I) for disassembly, cleaning,
inspection, repair or replacement, and
Type 11 (Air/Oxygen) Servicing Unit - Type II
(Oxygen) Purification Cylinder Group (See Figure 7-3).
purification cylinder group only to the extent
necessary to repair or replace a defective
part or parts.
Any disassembly, cleaning, inspection,
repair or replacement and assembly of a
part or parts of an oxygen system shall
be done in a contaminant free area.
If tube assemblies (1 and 2) have not been
Unscrew and remove elbows (3).
Unscrew and remove cylinder cap and
upper head subassembly (3 through 14)
from cylinder (19) and cartridge (15).
Remove screws (4), gaskets (5) and dust
cover from cap (7).
Remove retaining ring (6) and separate
upper head (9) from cap (7) Remove o-ring
(8) from cap (7).
While holding the upper head (9) and head
spring (14), remove retaining screw (10)
and disassemble upper perforator (11),
lower head (12), head spring (14) and
remove o-ring (13).
Perform step (5) only when necessary to
disassemble lower perforator (17).
perforator (17), and spacer (18) from
(2) Inspection Refer to paragraph 603 b for general
Perforator blades (11 and 17) for any
bending or dullness (b) Spring (14) for
breaks or set.
(3) Repair or Replacement Refer to paragraph 6-3.c
for general repair or replacement procedures
Replace a damaged cap or cylinder
Damaged threads may cause leakage.
Defective perforators will not puncture