Chapter 9 Accessories for the Kirby Morgan BandMasks

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1 Chapter 9 Accessories for the Kirby Morgan BandMasks 9.1 Introduction This section provides the manufacturer s advice on how to install KMDSI accessories including the hot water shroud, low pressure inflator hoses, the weld lens assembly, and hard shell. The installation procedures shown here are typical for most Kirby Morgan masks and helmets. 9.2 Hot Water Shroud The Hot Water Shroud (Part # ) should be used whenever diving in water colder than 35.6 F (2 C). The KMDSI hot water kit is designed to be integrated with a hot water supply to help maintain breathing gas temperature at an acceptable level for the diver. 2) Remove the defogger knob, locknut, and spring. 3) Remove the emergency valve knob, nut, and spring. 4) Screw the regulator adjustment knob in all the way. 5) To install the rubber regulator cover, slide it over the bent tube assembly and stretch it over the regulator adjustment knob. In addition the hot water reduces the possibility of ice forming in the demand regulator or gas train components. Even with water temperatures of 40 F (4 C) the diver can experience discomfort and severe heat loss through the respiration process. For this reason, KMDSI recommends installing the hot water shroud when diving in waters colder than 40 F (4 C). Water supply to the shroud assembly should be at least 1 gallon (3.7 liters) per minute at a minimum temperature of 105 F (42 C). When diving operations are conducted during severe cold surface temperatures a hot water shroud should be used to prevent ice from developing in and on gas train components while the diver is on the surface. Loosen the bent tube Hot Water Shroud Installation Procedures Tools Required: 1/4 inch flat blade screwdriver 7/8 inch open end wrench torque wrench 7/8 inch open end attachment for torque wrench 11/16 inch open end attachment for torque wrench 1) Disconnect the bent tube assembly at the side block end only. Loosen the jam nut at the regulator. If the bent tube will not swivel freely, you must loosen the large nut at the regulator. Remove the free flow knob. ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

2 Pull the shroud over the regulator. 6) Install the rubber side block cover. Start by inserting the non-return valve through the square hole on the back side of the cover. All the other holes will then line up correctly. 7) Slide one of the PVC Flanges (Part # ) over the bent tube and insert it into the regulator shroud. 8) Slide the corrugated tube over the bent tube. The PVC flange previously installed in the regulator shroud mates with the corrugated tube, with the tube rubber going over the PVC Flange and the regulator shroud rubber. 9) Install the second PVC flange in the other end of the corrugated tube. (1/4 of the flange should still show). 10) Attach the side block end of the bent tube to the side block assembly. Using the torque wrench and 11/16 attachment, tighten to "100" inch lbs ("11.3" Newton Meters). If the regulator end of the bent tube was loosened, torque the jam nut to "40" inch lbs ("4.5" Newton Meters). 11) Slide the PVC flange up towards the side block and install it in the side block rubber tube. (1/4 of the flange should still show). 12) Stretch the corrugated tube over the PVC flange and the side block rubber tube. Position the shroud over the side block. 13) Wrap the tie wraps around the corrugated tube at the PVC stiffeners and tighten. 14) Trim the excess ends from the tie wraps. 15) Reinstall the defogger knob, spring, and lock nut. Slide one of the PVC pieces over the bent tube and insert it into the regulator shroud. Install the corrugated tube and secure with tiewraps. 132 ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

3 Tighten with a flat blade screwdriver until the valve stem is flush with the lock nut face. Kirby Morgan BandMasks 18 & 28 16) Reinstall the emergency valve knob, spring, and nut. Tighten the locknut with a flat blade screwdriver until the valve stem is flush with the lock nut face. ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

4 9.3 Low Pressure Inflator Hose The low pressure inflator system may be used with either a buoyancy compensator or dry suit systems. For certain pieces of equipment it may be necessary to use a longer inflator hose than is originally supplied by the manufacturer of the low pressure system Installation of the Low Pressure Inflator Hose Tools Required: 5/32 inch allen wrench attachment on torque wrench 1) Remove the plug from the side block. Save this plug. WARNING When using the low-pressure port on the side block for attachment of a lowpressure hose, a hose with built in flow restriction or the KMDSI Flow Restrictor Adapter, P/N must be used. Without a restrictor, a hose failure could deplete the Emergency Gas Supply very rapidly leading to suffocation. This could result in serious personal injury or death. 2) Check the O-ring on the low pressure whip to be sure it is present and in good condition. Carefully screw the low pressure whip into the side block. 3) Tighten fitting to the specifications provided by the dry suit manufacturer. Do not overtighten. 4) Pressurize helmet and test connection for leaks. Remove the plug from the side block and install the inflator hose here. 134 ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

5 9.4 Weld Lens Assembly Weld Lens Assembly Installation Tools Required: 3/8 inch Open End Wrench 1/4 inch Flat Blade Attachment on Torque Screwdriver 1) Remove the two plug screws from the port retainer. Refer to the drawing included with the weld lens assembly kit for the remainder of the location numbers. Kirby Morgan BandMasks 18 & 28 mask, install and tighten the two mount screws into the port retainer ears. 4) Tighten the two lock nuts on the ends of the hinge studs so that the welding lens assembly can be flipped up, but will not fall down from its own weight. 2) Insert the screws through the weld lens mount 3) With the shield facing out from the helmet or Tighten the weld lens assembly. Remove the two plug screws from the port retainer. Install the screws through the mount ears. WARNING Use only the screws provided with the Weld Lens Kit for installation of this assembly. Longer screws will damage the helmet shell and/or the threaded inserts. This could cause flooding through the port. ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

6 9.5 Weld Shield Assembly Weld Shield Assembly Installation Tools Required: 3/8 inch Open End Wrench 1/4 inch Flat Blade Attachment on Torque Screwdriver 1) Remove the two plug screws from the port retainer. Refer to the drawing included with the weld shield assembly kit for the remainder of the location numbers. 2) Insert the mount screws through the spacer washers and then through the weld shield mount ears. 3) With the shield facing out from the helmet or mask, install and tighten the two mount screws into the port retainer. 9.6 Use of Quick Disconnect A Quick Disconnect can be used with all bail-out systems. It provides greater convenience on deck while dressing the diver. It also makes it possible to separate the attachment of the bail-out from the helmet should the diver become entangled underwater. All quick disconnects used must be of good quality and be capable of supplying gas without any additional flow restriction. All quick disconnects used in countries that adhere to CE standards must be CE approved. A quick disconnect hose may be installed in any low pressure port of the diver s bailout regulator. The connector splits the hose into two halves, with a male connector on one end and a female connector on the other. The female connector should be equipped with a sleeve lock that must be properly aligned before the hose can be disengaged. One end of the hose with the connector attaches to the emergency valve assembly, while the other end of the hose with its mating connector attaches to any of the standard low pressure ports on the KMDSI SuperFlow first stage regulator (or any high performance regulator) used for the bail-out supply. The KMDSI Weld Shield Assembly (KMDSI Part # ) 136 ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

7 9.7 Hard Shell The Hard Shell is an accessory that helps to protect the diver s head from small lightweight items that may be dropped from the surface, or when the diver is working in a tight space and bumps their head. The hard shell cannot protect the diver from head injuries due to heavy objects striking the hard shell, or from neck injuries. Kirby Morgan BandMasks 18 & 28 mask when the diver is ready to dive. 4) There is no harm in storing the mask with the hardshell attached Hard Shell Removal 1) Remove the spider from the mask. 2) Pull the legs of the spider out of the slots in the hard shell. 9.8 Hood & Molded Face Seal The hood & molded face seal is an accessory that is ordered to size, to best fit the diver's head and face. The molded face seal fits against the diver's face for improved safety and comfort. The face seals are molded out of a durable synthetic rubber that does not require foam backing. The ear pockets are also molded into the face seals for added protection of the communications. The molded face seals come in small, medium and large sizes. The Kirby Morgan Hard Shell, Part # Hard Shell Installation 1) Remove the spider from the mask bands. 2) Thread the legs of the spider through the corresponding slots on the interior of the hard shell, allowing enough slack in the spider for the diver to position their head within the hard shell. 3) The spider with the hardshell is attached to the Hood & Molded Face Seal Assembly (Does not come with bands shown) There are two sizes of hoods, small/medium (S/M) and medium/large (M/L), to help prevent the gathering of material behind the head, and provide a more snug and comfortable fit. Interior view of the hard shell. The hood and molded face seal assemblies retrofit ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

8 to all earlier KMB-18 & 28 BandMasks, but require longer bronze band screws For safety and comfort it is very important to obtain a correctly fitting face seal and hood combination. On the following pages the face measurement system (face sizing chart, face measurement tool, face sizing cut out) is available to determine which size combination will best fit you. Simply copy the pages and follow the directions to obtain the optimal size for your head and face shape. 138 ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

9 9.8.1 Kirby Morgan KMB-18/28 Face Seal Sizing Template Large Medium Small 1 / 25.41mm Note: Verify this measurement when making copies and scale to adjust if needed. To use the KMB-18/28 Face Seal Template, make a copy and cut out the center starting with the Smallest size. Hold the Template up to your Face as shown and check for fit. Note: The Kirby Morgan KMB-18/28 Face Seal Sizing Cut Out is only to be used as a general reference guide. The actual Molded Face Seals will flex and stretch to conform to the contours of the face. Note: The fit of the KMB-18/28 Face Seal Sizing Template, because it does not stretch, should be placed at the top or just above the Brow, snug on the edges of the face and sufficiently below the Lower Lip (mouth closed). Also use Kirby Morgan Face Measurement Tool and Face Sizing Chart to help guide you in your decision. If the fit is too tight, cut out the next size (Medium) and repeat with the Large if needed. ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

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11 9.8.2 Kirby Morgan KMB-18/28 Face Seal Sizing Template Large Medium H ei g h t Small Width Width The Kirby Morgan KMB-18/28 Face Seal Sizing Chart is only to be used as a general reference guide. Use the Kirby Morgan Face Measurement Tool for measuring the face. H eig h t Height: Is measured from the top or bridge of the Nose to the bottom front part of the Chin Width: Is measured from the outer edges of the Face / front part of the Temple area There are two Hood sizes for the Hood/Molded Face Seal assemblies (a small/medium hood and a medium/large Hood). To determine which size should best work for you, use your Hat Size and the chart below. Small/Medium Hood: Hat Sizes, 6 3/4-7 1/8 (21 1/4"- 22 3/8")(54cm - 57cm) Medium/Large Hood: Hat Sizes, 7 1/4-8 (22 3/4"- 25 1/8")(58cm - 64cm) ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

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13 9.8.3 Kirby Morgan Face Measurement Tool To assemble the Kirby Morgan Face Measurement Tool make copies of Side A & B and cut them out (along solid line). Fold the flaps along the Fold Lines (dashed) in numerical order and assemble as shown. Fold 3 Fold 4 To use the Kirby Morgan Face Measurement Tool, adjust the Tool to measurement being taken (Height is measured from the top or bridge of the Nose to the bottom front part of the Chin and Width is measured from the outer edges of the face/front part of Temples). Use a pen and make a mark on side A of the Measurement Tool representing the inner edge of side B of the Measurement Tool. Measure form here to Pen Marks Fold 2 Kirby Morgan Face Measurement Tool Side A Fold 1 ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

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15 Use a Ruler or Tape Measure to measure the distances of the Markings. Use these measurements and the Kirby Morgan KMB-18/28 Face Seal Sizing Chart to help determine which of the Molded Face Seals will best fit you. Note: When using the Face Seal Sizing Chart, in areas that overlap S, M, L, in general, those with a larger hat sizes (7 ¼ and larger) will default to the Medium or large size and those with smaller hat sizes (7 1/8 and smaller) will default to the medium or small size. In addition use the KMB-18/28 Face Seal Template to help determine the correct size. Fold 4 Fold 3 Hood Sizes There are two Hood sizes for the Hood/Molded Face Seal assemblies (a small/medium Hood and a medium/large Hood). To determine which size should best work for you, use your Hat Size and the chart below. Small/Medium Hood: Hat Sizes, 6 3/4-7 1/8 (21 1/4"- 22 3/8")(54cm - 57cm) Medium/Large Hood: Hat Sizes, 7 1/4-8 (22 3/4"- 25 1/8")(58cm - 64cm) Use this edge to make Pen Marks onto Side A Kirby Morgan Face Measurement Tool Side B Fold 2 Fold 1 ⅯⅯⅩⅤ Kirby Morgan Dive Systems, Inc. All rights reserved. Document #

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