Tale 4-2. Organizational Maintenance Troubleshooting

TM 5-4220-226-14&P 4-8. Introduction - continued. b. This manual cannot list all malfunctions that may occur, nor all tests or inspections and corrective actions. lf a malfunction is not listed or is not corrected by the listed corrective actions, notify your supervisor. 4-9. Troubleshooting. Refer to table 4-2 for organizational maintenance troubleshooting. Tale 4-2. Organizational Maintenance Troubleshooting MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. WATER LEAKAGE INTO HELMET a. Check for damaged or improperly seated exhaust valve. Seat or replace valve (para 4-21). b. Check for damage or improperly seated regulator diaphragm. Seat or replace diaphragm (para 4-15). c. Check for torn neck dam or improperly adjusted neck clamp. Replace neck dam or adjust neck clamp (para 4-12). d. Check for loose port retainer screws. Tighten screws (para 4-18). 2. DEMAND REGULATOR CONTINUOUSLY FREE FLOWS a. Check for too high air supply pressure. Adjust supply pressure lower than 200 psi over ambient. b. Check for regulator out of adjustment. Adjust regulator (para 4-15). c. If free flow occurs only under water, check for turned down or torn neck dam. Adjust or replace neck dam (para 4-12). 4-4