INTEGRATED LOWER CONTROL ACTUATOR (ILCA) VISUAL CHECK

INTEGRATED LOWER CONTROL ACTUATOR (ILCA) WIRING DIAGRAM

INTEGRATED LOWER CONTROL ACTUATOR (ILCA) FAILS TEST 1 OR TEST 2 (EXTENSIBLE LINK TRANSDUCER NULL VOLTAGE TEST (SPARE))

TM-55-1520-240-T-1 CH-47D Heilcopter Manual
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TM 55-1520-240-T 7-9.2 INTEGRATED LOWER CONTROL ACTUATOR (ILCA) VISUAL CHECK 7-9.2 INITIAL SETUP Applicable All Tools: None Materials: None Configurations: Personnel Required: Aircraft Pneudraulics Repairer References: TM 55-1520-240-23 Equipment Condition: ILCA Removed From Shipping Container TASK RESULT 1. 2. 3. 4. 5. 6. Check extensible link servo valves (1 2). Check cross feedback transducer (5). and Check self feedback 7). transducers (6 and Check levers (8), and rods (9). Check actuator (1 O). Check six Huck bolts (11) on thrust ILCA or seven Huck bolts (11) on roll, pitch, or yaw ILCA. If either extensible link servo valve (1 or 2) is loose or damaged, tighten or replace it as required. If wir- ing from link servo valve (1 or 2) to receptacle (3 or 4) is damaged, replace link servo valve (1 and 2). If transducer (5) is loose or damaged, tighten or re- place it as required. If wiring from transducer (5) to receptacle (3 or 4) is damaged, replace wiring. If either transducer (6 or 7) is loose or damaged, tighten or replace it as required. If wiring from trans- ducer (6 or 7) to receptacle (3 or 4) is damaged, replace transducer (6 or 7). If any lever (8) is cracked or bent, forward actuator to depot. If any rod (9) is bent, forward actuator to depot. If body of actuator is cracked, forward actuator to depot. If any Huck bolt (11) pin head is not seated, collar contains corrosion, or collar can be turned indepen- dent of bolt, forward actuator to depot. FOLLOW-ON MAINTENANCE: TM 55-1520-240-23: Test Integrated Lower Control Actuator (ILCA). 8975 END OF TASK Change 2 7-223

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