TB 9-4935-552-50-2
l. Reinstall IR probe on probe mount and position in azimuth/elevation for maximum
TRD indication. The TRD shall read between 1.470 and 1.630 VPP.
m. If the TRD does not read between 1.470 and 1.630 VPP, request the LCSS
technician to replace the lamp within the collimator IAW 13o through r.
n. Check to ensure TRD is between 1.470 and 1.630 VPP. If out of tolerance for a
second time, slightly loosen the bolts holding lamp base. Slowly move lamp base until
position that produces maximum TRD is reached.
o. Lock down screws in lamp base while maintaining maximum TRD.
p. Check to ensure TRD is between 1.470 and 1.630 VPP. If out of tolerance for a third
time, return the IR probe to LCSS maintenance personnel.
16. Final Procedure
a. Disconnect all test equipment and return to storage.
b. Request the LCSS technician to run source/detector adapter program (9700).
c. Annotate and affix DA Label 80 in accordance with TB 750-25. When the TI cannot
be adjusted within tolerance, annotate and affix DA Form 2417 (US Army Calibration
System Rejected Instrument).
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