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TABLE 1.  TROUBLESHOOTING TEST CHAMBER ASSEMBLY, MODEL 452
TABLE 2. TROUBLESHOOTING ELECTRONIC TEST CHAMBER ASSEMBLY, MODEL 453

TM-10-1670-305-23P Automatic Ripcord Release AR2 Model 451 NSN 1670-01-369-7914 Test Chanber Assembly AR2 Model 452 NSN 1670-01-370-0752 Manual
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TM 10-1670-305-23&P 0015  00-2 TROUBLESHOOTING PROCEDURES - CONT 0015 00 INITIAL SETUP INFORMATION - CONT TABLE 1.  TROUBLESHOOTING (CONT) TEST CHAMBER ASSEMBLY, MODEL 452 Malfunction Probable Cause Corrective Action a.  Vibrator not operating. a.  Check electrical connection to altimeter. 6.  Altimeter pointer shows jerky motion when displaying falling altitude. b.  Damaged altimeter vibrator. b.  Replace altimeter (WP 0021 00). 7.  Altimeter does not work. a. Damaged altimeter. a.  Replace altimeter (WP 0021 00). TABLE 2.  TROUBLESHOOTING ELECTRONIC TEST CHAMBER ASSEMBLY, MODEL 453 Malfunction Probable Cause Corrective Action a.  Power cord not plugged in. a.  Plug power cord into 110 VAC, 50/60 Hz outlet. 1.  Unit fails to operate. b.  Blown fuse. b.  Replace fuse. 2.  Fan fails to spin after repeated attempts. a.  Vacuum pump/compressor not plugged in. a.  Plug vacuum pump/compressor into control assembly (c). b.  Worn or damaged vacuum pump/compressor. b.  Replace vacuum pump/compressor (WP 0022 00) 3.  Displays garbled or non- functional. a.  Damaged control assembly. a.  Replace control assembly (WP 0022 00). 4.  Displays will not reset. Piston rod location incorrect. Implement reset procedure (WP 0010 00). a.  Electrical connector not plugged in. a.  Plug electrical connector into control assembly. 5.  Panel indicators, controls or electric interlocks do not operate as described. b. Damaged control assembly. b.  Replace control assembly (WP 0022 00).







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