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9/8/98 AC 43.13-1B Life preservers should be inspected in accor- dance with the manufacturer’s specification, unless climate, storage, or operational condi- tions indicate the need for more frequent in- spections (Ref: TSO-C13). 9-44. LIFE PRESERVER INSPECTION. Life preservers should be inspected at 12-month intervals for cuts, tears, or other damage to the rubberized material. Check the mouth valves and tubing for leakage, corro- sion, and deterioration. Remove the CO2 cyl- inder and check the discharge mechanism by operating the lever to ascertain that the pin op- erates freely. Check the gaskets and valve cores of the cylinder container and the pull cord for deterioration. If no defects are found, inflate the preserver with air to a 2 psi pressure and allow to stand for 12 hours. If the pre- server still has adequate rigidity at the end of that time, deflate and fit with CO2 cylinders having weights not less than that indicated on them by the manufacturer. All cylinders made in accordance with joint Army/Navy Specifi- cation MIL-C-00601D are so stamped and have a minimum permissible weight stamped on them. The use of such CO2 cylinders is recommended. Having fitted the preserver with an adequately-charged cylinder, mark the preserver to indicate the date of inspection and patch it to the container. It is recommended that the aforementioned procedure be repeated every 12-month period, utilizing the CO2 car- tridge for inflation. Carbon dioxide permeates the rubberized fabric at a faster rate than air and will indicate if the porosity of the material is excessive. The following checks and in- spections should be completed: a. Check for abrasions, chafing, and soiling across folded cell areas and around metal parts. Condemn the life preserver when unsuitable conditions are found. b. Check for separation of cell fabric and loose attachments along the edges of patches and sealing tapes. Repair if practicable. c. Check for deterioration in areas where oil and grease are noted. Condemn deterio- rated cells. If deterioration is not noted, clean the areas with mild soap and water and rinse with clear water. d. Inspect the snaps and/or buckles to ensure proper operation. e. Inspect the instruction panel for read- ability. Par 9-43 Page 9-35 f. tears. g. h. Inspect the hardware for rusted or broken parts and cotter pins for damage. En- sure that pins are smooth and free of burrs. i. Check the inflator discharge lever for proper operation. Move the inflator dis- charge lever slowly through a normal cycle of operation to ensure freedom of operation and to make certain that the piercing pin has suffi- cient movement to discharge the CO2 cylinder. The point of the pin should move past the sur- face of the gasket in the inflator. In the un- operated position, the end point should be slightly below the gasket surface. j. Check the installation of the inflator stem gaskets and check the stem caps for tightness. Ensure that the inflator is centered on the stem. k. Check rescue light. Inspect and test. Inspect all stitching for gaps, pulls, and Visually inspect the cell containers for snags, cuts, loose stitching, and oil and grease spots. Repair or replace as necessary.PDF Image | AFS-640
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