Service and repair
8-20
10070389 Rev. A
Puritan Bennett™ 700 Series Ventilator System Service Manual
8.6 Ventilator head cabinet assembly
8.6.1 Oxygen adapter assembly
To remove the oxygen adapter assembly (if ventilator is so equipped), unscrew it from the
ventilator’s standard male DISS fitting. The oxygen adapter assembly can also be
disassembled (as required) while it is on or off the ventilator (Figure 8-15).
To install the oxygen adapter assembly, remove any existing PTFE tape from the ventilator’s
DISS male fitting and apply new tape (P/N G-060759-00). Screw adapter assembly onto DISS
fitting. Leak-test by applying leak test fluid (P/N 4-004489-00) with a suitable small brush to
all connections between where the hose attaches and the male DISS fitting inlet. If new
bubbles form, repair the leak. Use a clean cloth to remove the leak detector.
NOTE:
• When assembling oxygen adapters, use PTFE tape as shown in Figure 8-15. On the
Australian fitting, use PTFE tape on all threads of the male DISS fitting and on the
threaded male adapter. PTFE tape is not required on the male DISS fitting if you are
using a DISS female hose (USA) or a Dräger™* hose.
• To prevent tape debris from coming loose and entering the pneumatic system, do
not wrap tape around the first two threads.
Figure 8-15. Oxygen adapter assemblies disassembled
7-00189
PTFE tape
Male
DISS
fitting
DISS
male
oxygen
hose
7-00190
PTFE tape
Male
DISS
fitting
Air
Liquide™*
oxygen
hose
7-00191
PTFE tape
PTFE tape
Male
DISS
fitting
NIST
oxygen
hose
Summary of Contents for Puritan Bennett 700 Series
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