Ordnance Maintenance 20mm Automatic Gun M1 & 20mm Aircraft Automatic Gun AN-M2
By: prepared under the direction of the Chief of Ordnance (with the cooperation of the Chief of the Bureau of Ordnance, Navy Department)
Contributors: United States. Army. Ordnance Dept; United States. Navy Dept. Bureau of Ordnance
Series: Technical manual -- 9-1227
Publisher: War Dept.
Published: 1943
Place of publication: Washington, D.C
Language: eng
Number of pages: 56
Subjects: Machine guns -- Handbooks, manuals, etc; Airplanes, Military -- Armament -- Handbooks, manuals, etc
Genres: Handbooks, manuals, etc
Other titles: Ordnance maintenance; Ordnance maintenance, 20-mm automatic gun M1 and 20-mm aircraft automatic gun AN-M2; 20-mm aircraft automatic gun AN-M2
Description: TM 9-1227 Ordnance Maintenance 20mm Automatic Gun M1 & 20mm Aircraft Automatic Gun AN-M2 1942-08-07
Notes: Caption title

At head of title: Ordnance maintenance

"10 June 1943."

Includes index

"This manual supersedes TM 9-1227, 7 August 1942; TB 1227-1, 10 October 1942; TB 1227-2, 9 June 1943; Ordnance School manual (OS) no. 9-3, 15 August 1941; and Ordnance School Manual (OS) no. 9-45, December 1942."

"References": p. 54
Table of contents: title: Section I. General. Paragraphs; title: Scope 1; title: Characteristics 2; title: Differences in models 3; title: Data; title: II. Disassembly, assembly, and inspection.; title: General 5; title: Tools 6; title: Disassembly 7; title: Assembly 8; title: Inspection 9; title: III. Maintenance and repair; title: Exterior of gun 10; title: Driving spring guide group 11; title: Rear buffer group 12; title: Breechblock assembly 13; title: Sear cover plate group 14; title: Sear block group 15; title: Magazine slide group 16; title: Gas cylinder and sleeve group 17; title: Muzzle brake assembly 18; title: Recoil spring and mounting sleeve assembly 19; title: Tube and receiver groups 20; title: IV. Care and preservation.; title: General 21; title: Cleaning 22; title: Lubrication 23; title: Appendix. List of references 22