| Pub/Form Title | OPERATOR`S ORGANIZATIONAL, DIRECT AND GENERAL SUPPORT AND DEPOT MAINTENANCE MANUAL: HEATER, DUCT-TYPE, PORTABLE; 400,000 BTU/HR; GASOLINE ENGINE AND ELECTRIC MOTOR-DRIVEN BLOWERS W/6 AND 12-INCH DUCTS, AUTOMATIC TEMPERATURE CONTROL, TRAILER MOUNTED (AMERICAN AIR FILTER CO., INC. MODEL BT400-40) (NSN 4520-00-792-8257), (MODEL BT400-40-1) (4520-00-915-7789) AND (MODEL BT400-40-1A) (4520-00-223-3221) (REPRINTED W/BASIC INCL C4-11) (THIS ITEM IS INCLUDED ON EM 0148) |