"This manual is published for the information of the using arms and services. In addition to description, this manual contains technical information required for the identification, use, and care of the 75-mm Howitzers M2 and M3 and the 75-mm Howitzer Mount M7, together with related sighting equipment, ammunition, and accessories."--Page 7.

"This manual, together with TM 9-1543, dated 30 December 1943, supersedes TB 732B-1, dated 15 March 1943."--Page 3. "To provide operating instructions with the materiel, this Technical Manual has been published in advance of complete technical review. Any errors or omissions will be corrected by changes or, if extensive, by an early revision."--Page 7.

Introduction --Howitzer and mount -- Description and functioning of 75-mm howitzers M2 and M3 -- Description and functioning of recoil mechanism -- Description and functioning of 75-mm howitzer mount M7 -- Operation -- Lubrication -- Care and preservation -- Inspection and adjustment -- Malfunctions and corrections -- Disassembly and assembly -- Sighting and fire control equipment -- Ammunition -- Organizational spare parts and accessories -- Storage, packing, and shipment -- Preparation of materiel for use under extreme conditions -- References.