a. This procedure is designed to isolate failures in the gun system. The procedure should start with a step-by-step functional test in the Operator's Manual to identify the problem. The functional test sends the mechanic to troubleshooting procedures, isolating the malfunction. When the malfunction is located, the mechanic is sent to the replace or repair work package. After the repair is finished, the mechanic is sent back to the functional test. This verifies a successful repair. After a successful test, the gun is returned to service.
A Functional test shows a failure. B Failed component identified. C Failed component repaired or replaced.
D Functional test begun again. E Functional test successfully completed.
b. A failure check/symptom index is included as a general reference to the troubleshooting procedures. ALWAYS START THE PROCEDURE WITH THE FUNCTIONAL TEST IN ORDER TO VERIFY THE SYMPTOM, AND END THE PROCEDURE WITH THE FUNCTIONAL TEST IN ORDER TO VERIFY THE REPAIR.
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