WINDSHIELD WIPERS VISUAL CHECK

TM-55-1520-240-T-3 CH-47D Heilcopter Manual
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TM 55-1520-240-T 12-4.2 WINDSHIELD WIPERS VISUAL CHECK 12-4.2 INITIAL SETUP Applicable Configurations: All Tools: Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692 Work Stand Materials: None Personnel Required: 67U10 Medium Helicopter Repairer References: TM 55-1520-240-23 Equipment Condition: TM 55-1520-240-23: Battery Disconnected Electrical Power Off Hydraulic Off TASK RESULT 1. Check windshield wiper arms (1) and If either arm (1) is damaged, replace it. If either wiper blades (2). blade (2) is cracked, torn, or loose, replace it. 2. Check WINDSHIELD WIPERS switch If switch (3) is loose or damaged tighten or re- (3). place it as required. 3. Lower overhead panel. 4. Check windshield wiper motor (4), If windshield wiper motor (4) is loose or damaged, shafts (5), and actuators (6). tighten or replace it as required. If either shaft (5) is damaged, replace it. If either actuator (6) is loose or damaged, tighten or replace it as re- quired. FOLLOW-ON MAINTENANCE: TM 55-1520-240-23: Secure overhead panel END OF TASK 12-73

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