Kirby Morgan KMB 18 - User Manual

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KMB 18/28 (BAND MASK)

DAILY MASK AND EMERGENCY GAS SYSTEM

SET-UP AND FUNCTIONAL CHECKLISTS

APPENDIX A2.3

07-20-17

THIS DAILY SET-UP AND FUNCTIONAL CHECKLIST SHOULD BE COMPLETED PRIOR TO COMMENCEMENT OF DAILY

DIVING OPERATIONS AND AT LEAST EVERY 24 HOURS IF IN CONTINUOUS USE.

WARNING:

These are recommended minimum checks when using Kirby Morgan KMB

18/28 Band Masks. Additional checks may be required as dictated by the

conditions and tasks being performed. Failure to perform in-water checks

may result in serious injury or death.

NOTE: Mask(s) being used in extreme environments will require more frequent inspection.

NOTE: During removal of components for inspection, O-rings and other consumable items may

be reused, providing they are clean and a visual inspection does not reveal any damage

or deterioration.

NOTE: Perform the Side Block/Demand Regulator inspection procedures with gas supplies not

connected to the Side Block. Attach the gas supply at Step 5 of the “Side

Block/Demand Regulator” inspection procedure.

NOTE: Steps 3(a) - 3(e) use the EGS for setting up and checking the Mask’s systems. For a

proper check of the Demand Regulator adjustment, the First Stage Regulator must have

an intermediate supply pressure output between 135 – 150 psig (9.3 – 10.3 bar). The

First Stage Bleed/Relief Valve should be set between 180 - 200 psig (12.4 – 13.8 bar).

Do not attach the Umbilical until Step 6.

Date:

Mask Serial #:

Associated Equipment Serial #(s):

Technician (print name):

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This document outlines the daily set-up and functional checklists for the Kirby Morgan KMB 18/28 Band Masks, specifically Appendix A2.3, dated 07-20-17. These checks are mandatory before daily diving operations commence and at least every 24 hours during continuous use.

Function Description:

The KMB 18/28 Band Masks are specialized diving masks designed for professional use. This checklist ensures the mask's various components, including the hood and band assembly, demand regulator, emergency gas system (EGS), and communication systems, are in proper working order to ensure diver safety. The primary function of these checks is to identify and rectify any potential issues that could lead to serious injury or death during diving operations.

Important Technical Specifications:

Band Torque: The screws holding the bands in position must be torqued to 26 inch-pounds (28 kg cm).
Band Gap: Maximum torque should result in no less than an 1/8 inch (3mm) even gap between the bands.
Demand Regulator Cover Dents: Dents on the demand regulator cover should not exceed ¼ inch (6mm) in depth.
Regulator Hose Assembly (KMB-18A): Hoses and fittings must be in good shape, free from bulges, cuts, cracking, or deterioration.
Bent Tube (KMB-18B): The bent tube must not have dents or compressed areas exceeding 1/8” (3mm).
First Stage Regulator Intermediate Supply Pressure: Must be between 135 – 150 psig (9.3 – 10.3 bar).
First Stage Bleed/Relief Valve Setting: Should be between 180 - 200 psig (12.4 – 13.8 bar).
Purge Button Travel (SuperFlow/SuperFlow 350): Should travel no less than 1/16" and no more than 1/8" (1.5-3.0mm) before gas flow is heard.
Purge Button Travel (450/455 Balanced Regulator): Depressing the flexible cover should result in travel approximately ¼" (6mm) before gas starts to flow.

Usage Features:

Daily Pre-Dive Checks: The checklist must be completed before any daily diving operations and every 24 hours if the mask is in continuous use.
Environmental Considerations: Masks used in extreme environments may require more frequent inspections.
Component Reusability: O-rings and other consumable items can be reused if clean and free from damage or deterioration after component removal for inspection.
EGS Integration: The EGS is used for setting up and checking the mask's systems, with specific pressure requirements for the first stage regulator.
Umbilical Connection: The umbilical is connected at a specific step (Step 5) after other checks are performed.
Demand Regulator Adjustment: The regulator adjustment knob is rotated fully clockwise, then 3-4 rotations counterclockwise to check for smooth operation.
Emergency Gas Supply (EGS) Operation: The EGS supply valve on the cylinder and the emergency supply valve on the side block are opened to check pressure and flow.
Defogger/Steady Flow Valve: Momentarily opened ¼ to 1 full turn to check for a strong gas flow.
One Way Valve: Must be operational and tested daily. A non-functional one-way valve is a critical safety hazard.
Communications Check: A mandatory step to ensure proper communication functionality.
Hot Water Supply (if applicable): Connections are checked, and flow to the diver's shroud and suit is verified.
Dry Suit Inflation Hose (if applicable): Connection, inflation valve, and exhaust valve function are checked.
Leak Check: Mask gas fittings and connections, including the EGS, are soap and leak checked.
Rig Adjustment/Fit: The entire rig, including the diver's safety harness, umbilical strain release, EGS hose quick disconnect, boots, gloves, knife, and other accessories, must be properly adjusted and functioning.
Breathing Check: The diver must confirm the mask is breathing easily.

Maintenance Features:

Regular Inspections: Visual inspections are performed on the hood, face seal, bands, head harness/spider, and the mask's interior/exterior for signs of damage, tears, holes, cracks, or deterioration.
Component Replacement: Worn or cracked head harnesses/spiders must be replaced.
Oral Nasal Valve and Mask: Ensure correct installation and smooth operation of the nose clearing device. Lubrication may be required.
KMB-18A Hose Assembly Replacement: Recommended every 2 years, regardless of condition.
EGS Cylinder Dates: Verify the cylinder is within its Visual Inspection Program (VIP) and hydro dates.
First Stage Regulator and Over Pressure Bleed/Relief Valve Settings: Must be checked within the past month and documented in the Maintenance Log.
Safety Harness and Cylinder Retainer: Inspected for wear and damage, with repairs or replacements as needed.
Documentation: All inspections and maintenance must be documented in the Maintenance Log (Appendix 3).
Professional Repair Recommendation: KMDSI strongly recommends that a certified KMDSI Repair Technician perform all repairs using genuine KMDSI parts. Owners performing repairs should possess the necessary knowledge and experience and retain replacement component receipts.
Support Contacts: Contact information for Kirby Morgan Dive Systems, Inc. and Dive Lab, Inc. is provided for questions regarding procedures, components, or repairs.
Maintenance Log Book: Use P/N 125-001 to record all maintenance performed.