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TRANSMISSION OIL PRESSURE INDICATING AND WARNING SYSTEM OPERATIONAL CHECK (Continued) - TM-55-1520-240-T-2_252
TRANSMISSION OIL PRESSURE INDICATING AND WARNING SYSTEM OPERATIONAL CHECK (Continued) - TM-55-1520-240-T-2_254

TM-55-1520-240-T-2 CH-47D Heilcopter Manual
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TM 55-1520-240-T 8-93 TRANSMISSION OIL PRESSURE INDICATING AND WARNING SYSTEM OPERATIONAL CHECK (Continued) 8-9.3 TASK RESULT 16. Disconnect plug from forward transmission FWD TRANSMISSION MAIN OIL PRESS light (7) shall main oil pressure switch (8). go out.  If it is still on, go to task 8-9.12. 17. Disconnect plug from aft transmission main oil AFT TRANSMISSION MAIN OIL PRESS light (7) shall pressure switch (9). go out.  If it is still on, go to task 8-9.12. 18. Disconnect plug from combining transmission COMB TRANSMISSION MAIN OIL PRESS light (7) main oil pressure switch (10). shall go out.  If it is still on, go to task 8-9.12. 19. Disconnect plug from No. 1 (left) engine  trans- LEFT TRANSMISSION MAIN OIL PRESS light (7) shall mission oil pressure switch (11). go out.  If it is still on, go to task 8-9.12. 20. Disconnect plug from No. 2 (right) engine  trans- RIGHT TRANSMISSION MAIN OIL PRESS light (7) mission oil pressure switch (11). shall go out.  If it is still on, go to task 8-9.12. 21. Disconnect plug from aft shaft oil pressure AFT SHAFT MAIN OIL PRESS light (7) shall go out. switch (12). If it is still on, go to task 8-9.12.  XMSN oil press capsule (6) shall go out.  If it is still on, go to task 8-9.13. 22. Short pin 2 in aft shaft oil pressure switch (12) XMSN OIL PRESS capsule (6) shall come on.  AFT plug to ground with a wire. SHAFT MAIN OIL PRESS light (7) shall come on.  If capsule (6) does not come on, go to task 8-9.14. 23. Remove wire. Capsule (6) and light (7) shall go out. 24. Short pin 2 in No. 2 engine (right) transmission XMSN OIL PRESS capsule (6) shall come on.  RIGHT oil pressure switch (11) plug to ground with a TRANSMISSION MAIN OIL PRESS light (7) shall wire. come on.  If capsule (6) does not come on, go to task 8-9.14. 25. Remove wire. Capsule (6) and light (7) shall go out. 26. Short pin 2 in No. 1 engine (left) transmission XMSN OIL PRESS capsule (6) shall come on.  LEFT oil pressure switch (11) plug to ground with a TRANSMISSION MAIN OIL PRESS light (7) shall wire. come on.  If capsule (6) does not come on, go to task 8-9.14. 27. Remove wire. Capsule (6) and light (7) shall go out. 28. Short pin 2 in combining transmission main oil XMSN OIL PRESS capsule (6) shall come on.  COMB pressure switch (10) plug to ground with a wire. TRANSMISSION MAIN OIL PRESS light (7) shall come on.  If capsule (6) does not come on, go to task 8-9.14. 29. Remove wire. Capsule (6) and light (7) shall go out. TASK RESULT 30. Short pin 2 in aft transmission main oil pressure XMSN OIL PRESS capsule (6) shall come on.  AFT switch (9) plug to ground with a wire. TRANSMISSION MAIN OIL PRESS light (7) shall come on.  If capsule (6) does not come on, go to task 8-9.14. 31. Remove wire. Capsule (6) and light (7) shall go out. 32. Short pin 2 in forward transmission main oil XMSN OIL PRESS capsule (6) shall come on.  FWD pressure switch (8) plug to ground with a wire. TRANSMISSION MAIN OIL PRESS light (7) shall come on.  If capsule (6) does not come on, go to task 8-9.14. 33. Remove wire. Capsule (6) and light (7) shall go out. 34. Press and release each TRANSMISSION MAIN Each light (7) shall come on when pressed.  If it does OIL PRESS light (7). not, go to task 8-9.15. 35. Connect plugs to forward, aft, combining, No. 1 XMSN OIL PRESS capsule (6) shall come on.  FWD, (left) and No. 2 (right) engine transmission pres- COMB, AFT, LEFT, RIGHT, and AFT SHAFT TRANS- sure switches (8, 9, 10, and 11) and aft shaft MISSION MAIN OIL PRESS lights (7) shall come on. pressure switch (12). GO TO NEXT PAGE 8-160  Change 4







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