TM 55-1520-240-T4-5.3 GAS PRODUCER CONTROL SYSTEM (N1) OPERATIONAL CHECK4-5.3INITIAL SETUPReferences:Applicable Configurations:TM 55-1520-240-23Without 74Equipment Condition:Tools:TM 55-1520-240-23:Powerplant Repairer's Tool Kit,Battery ConnectedNSN 5180-00-323-4944Electrical Power OnMaterials:Hydraulic Power OffNoneVisual Check of Gas Producer Control System Per-formed (Task 4-6.2)Personnel Required:Aircraft Powerplant Repairer (2)TASKRESULTCHECK NO. 1 ENGINE GAS PRODUCER CONTROL SYSTEM1.Check that ENGINE NO. 1 COND CONT circuit breakerIf circuit breaker (1) is open, close it. If it opens again, go to(1)is closed.task 4-5.4.2.Check No. 1 ENG N1 CONT capsule (2).If capsule (2) is lit, go to task 4-5.5.3.Open ENGINE NO. 1 COND CONT circuit breaker (1).Fuel control pointer (4) shall not move. If it does, replaceSet NO. 1 ENGINE CONDITION lever (3) to GROUND.No. 1 gas producer control box.Close ENGINE NO. 1 COND CONT circuit breaker (1).4.Set NO. 1 ENGINE CONDITION lever (3) to STOP andFuel control pointer (4) shall move and stop about mid pointthen to GROUND.in ground band on protractor 95). If it does not, go to task4-5.6. NO. 1 ENG N1 CONT capsule (2) shall come on andstay on until fuel control pointer moves to ground position. Ifcapsule does not come on, go to task 4-5.7. If light comeson and stays on, go to task 4-5.5.5. Set NO. 1 ENGINE CONDITION lever (3) to FLIGHT.NO. 1 ENG N1 CONT capsule (2) shall come on and stayon until fuel control pointer (4) moves to flight band. Pointer(4) shall make positive contact with stop (6). Rod (7) shallcompress and partially cover brown band (8). If capsule (2)comes on and goes out and pointer (4) does not move,replace No. 1 gas producer control actuator. If pointer (4)moves but does not make contact with stop or brown band isnot partially covered, go to task 4-5.8.GO TO NEXT PAGE4-96 Change 17
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