CHECK NO. 2 ENGINE GAS PRODUCER CONTROL SYSTEM

GAS PRODUCER CONTROL SYSTEM (N1) OPERATIONAL CHECK (Continued) - TM-55-1520-240-T-1_315

GAS PRODUCER CONTROL SYSTEM (N1) OPERATIONAL CHECK (Continued) - TM-55-1520-240-T-1_317

TM-55-1520-240-T-1 CH-47D Heilcopter Manual
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TM 55-1520-240-T 4-5.3 GAS PRODUCER CONTROL SYSTEM (N1) OPERATIONAL CHECK (Continued) 4-5.3 T A S K R E S U L T CHECK NO. 2 ENGINE GAS PRODUCER CONTROL SYSTEM 13. 14. 15. 16. 17. 18. 19. Check that ENGINE NO. 2 COND CONT circuit breaker (11) is closed. Check NO. 2 ENG N1 CONT capsule (12). Open ENGINE NO. 2 COND CONT circuit breaker (1 1). Set NO. 2 ENGINE CONDl- TION lever (13) to GROUND. Close EN- GINE NO. 2 COND CONT circuit breaker (11). Set NO. 2 ENGINE CONDITION lever (13) to STOP and then to GROUND. If circuit breaker (11) is open, close it. If it opens again, go to task 4-5.4. If capsule (12) is lit, go to task 4-5.5. Fuel control pointer (14) shall not move. If it does, replace No. 2 gas producer control box. Fuel control pointer (14) shall move and stop about mid point in ground band on protractor (15). If it does not, go to task 4-5.9. NO. 2 ENG N1 CONT capsule (12) shall come on and stay on until fuel control pointer moves to ground position. If capsule does not come on, go to task 4-5.10. If light comes on and stays on, go to task 4-5.5. NO. 2 ENG N1 CONT capsule (12) shall come on and stay on until fuel control pointer (14) moves to flight band. Pointer (14) shall make positive contact with stop (16). Rod (17) shall compress and partially cov- er brown band (18). If capsule (12) comes on and goes out and pointer (14) does not move, replace No. 2 gas producer control actuator. If pointer (14) moves but does not make contact with stop or brown band is not partially covered, go to task 4- 5.8. Set NO .2 ENGINE CONDITION lever (13) to FLIGHT. Set NO. 2 ENGINE CONDITION lever (13) to GROUND. NO. 2 ENG N1 CONT capsule (12) shall come on and stay on until fuel control pointer (14) moves to and stops within ground band. Set NO. 2 ENGINE CONDITION lever (13) to STOP. NO. 2 ENG N1 CONT capsule (12) shall come on and stay on until fuel control pointer (14) moves to stop band on protractor (15) and is in positive contact with stop (19). If capsule (12) is still on when point- er is against stop (19), go to task 4-5.5. GO TO NEXT PAGE 4-98 Change 4

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