An electrical specialist checks wires,harness connections,battery during the inspection of B-24 aircraft in the United States.
United States USA Date:1943 Duration:5 min 39 sec Sound:Yes
The 50-hours inspection of the ignition and electrical system of USAAF B-24 Liberator heavy bomber aircraft at an airfield in the United States. Men exercise on the field. An animated diagram of human skeleton and United States Army Air Forces B-24 Liberator heavy bomber aircraft. The B-24 heavy bomber aircraft takes off. The aircraft in flight over grasslands. The B-24 parked at the airfield. The crew members start the 50-hours inspection of ignition and electrical system of the aircraft. An electrical specialist tightens the elbow terminals and nuts of the hammering engines. The specialist checks the chamber and slides wires and makes sure they are not worn. He checks the cable for security of mounting. After inspecting all the wires and harness, the specialist checks other attachments. He examines the switch lead and removes cover from booster coil. The signals for operation test on cover plate switch board flow smoothly, so the specialist gives an 'OK' signal. During the electrical inspection: the specialist notes the operation of the battery disconnect relay. A man in the cockpit operates the battery switches. The specialist signals in the cockpit and replaces canvas covering. He checks battery insulation for proper security of connections. The specialist makes the hydrometer test with electrolytes and removes the sump and cleans it with soda water bath and neutralize acids. He checks the proper connection of accessible electrical leads and also checks the landing lights and examines the inter cooler shutters in the cockpit. The specilaist checks the generator for security of mounting and makes sure that the brushes are in good condition. He tests the oiling and cooling blast connection.
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