4-13.2 ENGINE ACCESSORY GEARBOX CHIP DETECTORS VISUAL CHECK

4-13.1 ENGINE ACCESSORY GEARBOX CHIP DETECTORS WIRING DIAGRAM

4-13.3 ENGINE ACCESSORY GEARBOX CHIP DETECTORS OPERATIONAL CHECK

TM-55-1520-240-T-1 CH-47D Heilcopter Manual
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TM 55-1520-240-T 4-13.2 ENGINE ACCESSORY GEARBOX CHIP DETECTORS VISUAL CHECK 4-13.2 INITIAL SETUP Applicable Configurations: References: With 74 TM 55-1520-240-23 Tools: Equipment Condition: Aircraft Mechanic's Tool Kit, TM 55-1520-240-23: NSN 5180-00-323-4692 Battery Disconnected Materials: Electrical Power Off None Hydraulic Power Off Personnel Required: No. 1 or No. 2 Engine Work Platform and Access Medium Helicopter Repairer Doors Open TASK RESULT 1. Check NO.1 and NO.2 ENGINE CHIP DETECTOR If either indicator (1 or 2) is loose or damaged, tighten or indicators (1 and 2). replace it as required. If either indicator displays black- and-white fan, go to task 4-13.4. 2. Check GND switch (3). If switch (3) is loose or damaged, tighten or replace it as required. CHECK NO. 1 ENGINE 3. Check No.1 engine accessory gearbox chip detector If chip detector (4) is loose or damaged, tighten or replace (4). it as required. If wire (5) is loose or damaged, tighten connection, repair, or replace engine to airframe harness as required. CHECK NO. 2 ENGINE 4. Check No.2 engine accessory gearbox chip detector If chip detector (4) is loose or damaged, tighten or replace (4). it as required. If wire (5) is loose or damaged, tighten connection, repair, or replace engine to airframe harness as required. FOLLOW-ON MAINTENANCE: None END OF TASK Change 17 4-315

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