TB 9-6920-430-50
hole cover until TI digital readout indicates the same pressure level as the Precision Test
Gage (A1). (R)
10. Final Procedure
a. Close (CW) valve on Argon gas supply bottle (B4).
b. Close (CW) INLET SHUTOFF and OUTLET SHUTOFF valves on GPU.
c. Open (CCW) INLET BLEED and OUTLET BLEED valves on GPU to reduce
pressure to 0 psi.
d. Deenergize and disconnect all equipment and reinstall transducer fitting protective
cap and TI protective cover.
e. When all parameters are within tolerance, annotate and affix DA Label 80 (US
Army Calibrated Instrument). When the TI receives limited or special calibration,
annotate and affix DA Label 163 (US Army Limited or Special Calibration). When the TI
cannot be adjusted within tolerance, make disposition in accordance with normal supply
procedures. Annotate and affix DA Form 245 (US Army Calibration System Rejected
Instrument) and inform the owner/user in accordance with TB 750-25-1.
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