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Page Title: CHAPTER 2 GENERAL PROCEDURES
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Figure 2-1. TM   750-116 CHAPTER  2 GENERAL   PROCEDURES 2-1.  SCOPE.  This  chapter  describes  genera! procedures for the setup of purging and charging equipment  time  cycles. 2-2.   SETUP   OF   PURGING   AND   CHARGING EQUIPMENT,   (figs.   2-1   and   2-2). a. Setup for Single Stage Fixture(fig. 2-1) (1) Obtain a tank of water pumped dry nitrogen and remove threaded protective cover from the outlet of the tank. Open tank valve momentarily to rid valve seat of any foreign material. (1.1)  Remove  the  adapter  from  the  regulator install tee into the regulator. Install valve relief into tee in the 3 o’clock position. install the adapter into tee in the 6 o’clock position. DO NOT DROP TANK OF COMPRESSED NITROGEN GAS. WHEN USING IN CONFINED AREAS, USE EXTREME CARE; GAS COULD CAUSE ASPHYXIATION. (2) Securely attach regulator to tank valve using ap- propriate adapter supplied with purging kit if necessary. (3) Securely attach hose assembly to the adapter. NOTE When using regulator 11729749, adapter 10917072-2 is required to connect hose assembly to low pressure to low pressure port of regulator. (4) Close pressure regulator valve counterclockwise (CCW) to the extreme closed position. (5) Open the nitrogen tank valve (CCW) slowly until the maximum tank pressure is registered on the high pressure  gage. NOTE If pressure indicated is less than 100 psi, obtain and use replacement tank. (6) SIowly open pressure regulator valve clockwise (CCW) until approximately 5 psi is registered on the low pressure gage. Check for and eliminate any interference; close pressure regulator valve (CCW). (7) For bleed down procedures, refer to para 2-3a. Change 1 2-1

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