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DC POWER SYSTEM OPERATIONAL CHECK
DC POWER SYSTEM OPERATIONAL CHECK (Continued) - TM-55-1520-240-T-2_519

TM-55-1520-240-T-2 CH-47D Heilcopter Manual
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TM 55-1520-240-T 9-1.4 DC POWER SYSTEM OPERATIONAL CHECK (Continued) 9-1.4 TASK RESULT 3. Set BATT switch (14) to ON.   MASTER  CAUTION  lights  (15)  shall  come  on.    NO.   1 RECT OFF and NO. 2   RECT OFF (Without  74)  RECT  1 and  RECT 2 (With  74) capsules (16 and 17) shall be on. If   lights   do   not   come   on,   replace   battery.      Refer   to TM  55-1520-240-23.    If  lights  still  do  not  come  on,  go  to task  9-1.5.    If  either  capsule  (16  or  17)  is  not  on,  go  to task 9-1.6. 4. Press and release BATTERY CHARGING and Lights (18 and 19) shall momentarily come on.  If either light CHARGE COMPLETE lights (18 and 19). does not come on, go to task 9-1.7. 5. Start apu.  Refer to task 15-1.5. APU ON capsule (20) shall come on. 6. Set APU GEN switch (21) to ON. NO. 1   RECT  OFF  and  NO.  2  RECT  OFF  (Without   74) RECT  1  and  RECT  2  (With    74)  capsules  (16  and  17) shall  go  out.    APU  ON  capsule  (20)  shall  stay  on.    If capsules (16 and 17) are still on, go to task 9-2.5.  If only NO.   1   RECT   OFF   (Without   74)   RECT   1   (With   74) capsule is still on, go to task  9-1.8.  If only NO. 2 RECT 1 OFF (Without 74) RECT 2 (With 74) capsule is still on, go to task 9-1.9. 7. Check BATT SYS MAL capsule (24).   BATT SYS MAL capsule (24) shall be out.  If it is on, open and then dose BATT CHGR circuit breaker (1).  If capsule (24) is still on, go to task 9-1.11. 8. Check air flow from No. 1 transformer-rectifier (22). Air shall flow from rectifier (22).  If not, replace rectifier. 9. Check air flow from No. 2 transformer-rectifier (23). Air shall flow from rectifier (23).  If not, replace rectifier. 10. Check BATTERY CHARGING and CHARGE COM- Light (18 or 19) shall be on.  If either light is not on, go to PLETE lights (18 and 19). task 9-1.10. GO TO-NEXT-PAGE Change 19  9-11







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