Title: US Army, Technical Manual, TM 9-4910-611-14&P, OPERATORS, ORGANIZATIONAL, INCLUDING REPAIR PARTS LIST FOR TEST SET, IN, (BACHARACH INSTRUMENT CO., MODEL YHQ), (NSN 4910-00-355-6248), Author: www.survivalebooks.com
Title: US Army, Technical Manual, TM 9-4910-430-10, OPERATORS MANUAL FOR TESTER, CYLINDER COMPRESSION, (BACHARACH I INSTRUMENT CO., MODEL YUF), (FSN 4910-808-4300), Author: www.survivalebooks.com
Title: US Army, Technical Manual, TM 9-4910-604-14&P, OPERATORS, ORGANIZATIONAL, INCLUDING REPAIR PARTS LIST FOR TEST SET, DI INJECTOR, (BACHARACH INSTRUMENT COMPANY), (NSN 4910-00-317-8265), Author: www.survivalebooks.com