TM 5-4220-231-14&PTROUBLESHOOTING - (Con't)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONStep 6. Check pressure reading of the LP pressure gage on the VTA panel. Gage should register thesame pressure as LP OUT gage on the Secondary HP Supply side of the DACC. If not, LPOUT supply valve is faulty.Request intermediate direct support.Check the supply hoses from the DACC to the VTA for kinks or clogs.Straighten and clear supply hoses.4. PRESSURE LOSS AT RECOMPRESSION CHAMBER SUPPLY HOSE.Step 1. Check LP OUT gage on CRS. Ensure LP Gage Isolation valve is open.Open Gage Isolation valve.If LP OUT gage pressure indicates normal operating pressure, the problem is downstreamof LP OUT gage. Ensure the LP SUPPLY OUT valve is open.Open LP SUPPLY OUT valve.If pressure is still not reaching the recompression chamber, either the LP SUPPLY OUTvalve is faulty, or there is a kink or blockage in the supply hose from the CRS to thechamber.Straighten kinks or clear blockage from supply hose. If problem persists, requestintermediate direct support to replace the LP SUPPLY OUT valve.If LP OUT gage pressure registers below normal operating pressure, go to Step 2.Step 2. Check HP IN gage on CRS. If gage indicates below normal operating pressure, the problemis upstream of the gage and the CRS.Ensure that DASS has HP air and that the connections between the DASS and theCRS are free of kinks or blockage.Step 3. Check SUPPLY OUTLET valve on DASS to ensure it is open.Open SUPPLY OUTLET valve on DASS.If HP IN gage on CRS indicates normal operating pressure, the problem isdownstream of gage; go to Step 4.3-13
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