Kirby Morgan 77
10)Check the screws on the port retainer . They must be adjusted to the proper torque setting specifications noted in Appendix 1 of this manual. Binder head screws are used in this application for their self lock- ing characteristics.
WARNING
All parts on Kirby Morgan diving helmets must be adjusted to their proper torque specifications. See Appendix 1 for a complete listing of torque specifications for each part. Failure to adjust parts to the recommended specifications could lead to helmet failure and accidents. This could be fatal.
3.6 Preparing the Helmet for Diving
3.6.1 Clean Face Port
Thoroughly clean the face port with a soft cloth and a mild liquid soap solution. DO NOT USE ANY AEROSOL SPRAYS ON THE POLYCARBONATE PORT!
3.6.2 Check Moving Parts
Check all moving parts, such as the regulator adjust- ment knob, the defogger control knob, emergency (EGS) knob, and the nose block device knob and all locking collar parts to ensure smooth and proper operation.
3.6.3 Check Communications
Check the communications system for proper opera- tion. Put the helmet on and talk to an assistant on the amplifier. If you are by yourself, with the helmet off take the helmet near the amplifier and tap on each earphone and the microphone, listening to the taps on the amplifier/speaker. Talk into the amplifier/ speaker feeling the vibration on each earphone and the microphone with your fingertips. Check the fit and tightness of the comm module mount nut.
3.6.4 One Way Valve Check
The one way valve must be tested daily, prior to commencement of diving operations.
1)Prior to attaching (or pressuring up) the umbilical, close the emergency valve knob, attach and pressure up the emergency hose. Shut off the defogger control knob and screw in the adjustment knob on the regula- tor all the way.
2)With the emergency hose pressurized, turn on the emergency valve knob. If any gas escapes out the end of the adapter, the one way valve is faulty and must be rebuilt or replaced. A one way valve repair kit is available to rebuild these valves (Part #
You can test the one way valve by connecting the bailout bottle to the emergency valve and pressurizing the sideblock. There must be no gas leakage through the one way valve.
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