TM 5-4220-226-14&P2-3. Reporting Deficiencies.If any problem with the equipment is discovered during PMCS or while it is being operated that cannot becorrected at the operator/crew level, it must be reported. Refer to DA PAM 738-750 and report the deficiencyusing the proper forms.2-4. Special Instructions.a.KeepItClean. Cleanliness is imperative in maintaining and handling diving system compo-nents. All tools and parts must be kept free of oil, grease, rust, or other contamination IAW chapter 4, sectionVII.b.Cleaning. Do not use trichlorethylene or methyl chloroform in cleaning operations. The onlyacceptable cleaning agents are Tri Basic Sodium Phosphate and nonionic soaps.SECTION III. OPERATION UNDER USUAL CONDITIONS2-5. General.This section describes normal operating procedures for the diving helmet. Included are predive setupprocedures, mission operational procedures, and post dive procedures.2-6. Predive Setup Procedures.After performing PMCS procedures in Section II, accomplish the steps listed in table 2-2, predive setupprocedures. These procedures are intended as an overview of predive setup and are not intended to replace aproper training program, but are only a general outline of use.Table 2-2. Predive Setup ProceduresStepProcedure1. Visual inspection.Perform PMCS.2. Connect and check emergency airsupply.a. Gage emergency air cylinder and record. Install first stageregulator on emergency air cylinder and set over bottom pressureat 135 psig +5 psig.b. Ensure emergency air supply valve is completely closed.Connect the cylinder valve to the emergency air supply inlet onthe side block. Set relief valve on first stage regulator at 200psig.c. Open the cylinder valve and the emergency air supply valve.d. Verify that air flows by listening for the characteristic hiss ofescaping air.2-5
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