BC-939A_B_TN-939_repair_parts_TM11-5820-257-12P_1964.pdf

*TM 11-5820-257-12P D E P A R T M E N T O F T H E A R M Y T E C H N I C A L M A N U A L OPERATOR AND ORGANIZATIONAL MAINTENANCE REPAIR PARTS AND SPECIAL TOOL LISTS AND MAINTENANCE ALLOCATION CHART, ANTENNA TUNING UNITS BC-939-A AND BC-939-B AND TUNER, RADIO FREQUENCY TN-339/GR Headquarters, Department of the Army, Washington 25, DC 10 June 1964 ParagraphPage SectionI.INTRODUCTION Scope . 11 Parts for maintenance. 22 Reporting of equipment manual improvements. . 32 II.FIRST ECHELON PARTS LIST. . 3 III.SECOND ECHELON FUNCTIONAL PARTS LIST . . 4 IV.MAINTENANCE ALLOCATION General . 45 Columns. 55 V.MAINTENANCE ALLOCATION CHART. 8 VI.ALLOCATION OF TOOLS FOR MAINTENANCE FUNCTIONS. 10 SECTION I INTRODUCTION 1. Scope a. This manual includes an operators mainte- nance repair parts and special tools list and an or- ganizational maintenance repair parts and special tools list. (1) The operators maintenance repair parts and special tools list lists items supplied for initial operation. The list includes parts and material issued as part of the major end item. All items authorized for basic operator maintenance of the equip- ment are also listed. (2) The organizational maintenance repair parts and special tools list lists the repair parts authorized for organizational maintenance and is a basis for requisi- tioning by organizations which are authorized the major item of equipment. End items of equipments are issued on the basis of allowances prescribed in *This manual supersedes TM 11-5820-257-12P, 28 April 1969 including C1, 19 January 1962. 1 This copy is a reprint which includes current pages from change 1. equipment authorization tables and other documents that are a basis for requisi- tioning. (3) The maintenance allocation chart assigns maintenance functions and repair opera- tions to be performed by the lowest ap- propriate maintenance echelon. b. Columns are as follows: (1) Federal stock number. This column lists the 11-digit Federal stock number. (2) Designation by model. The dagger (t) in- dicates model in which the part is used. (3) Description. Nomenclature or the stan- dard item name and brief identifying data for each item are listed in this column. When requisitioning, enter the nomen- clature and description. (4) Unit of issue. The unit of issue is each unless otherwise indicated and is the sup- ply term by which the individual item is counted for procurement, storage, requi- sitioning, allowances, and issue purposes. (5) Expandability. No n e x p e n d a b1 e items are indicated by NX. Expendable items are not annotated. (6) Quantity authorized. Under Items Com- prising an Operable Equipment, the col- umn lists the quantity of items supplied for the initial operation of the equipment. (7) Quantity incorporated in unit. This col- umn lists the quantity of each part found in a given assembly, component, or equipment. (8) Organizational. An asterisk (*) indicates that an item is not authorized for stock- age but if required, may be requisitioned for immediate use only. (9) Illustration. The Item No. column lists the reference designations that appear on the part in the equipment. These same designations are also use on any illustra- tions of the equipment. The numbers in the Figure No. column refer to the il- lustrations where the part is shown. 2. Parts for Maintenance When this equipment is used by signal service organizations organic to the theater headquarters or communication zones to provide theater com- munications, those repair parts authorized up to and including fourth echelon are authorized for stockade by the organization operating this equip- ment. 3. Reporting of Equipment Manual Improvements The direct reporting, by the individual user, or errors, omissions, and recommendations for im- proving this equipment manual is authorized and encouraged. DA Form 2028 will be used for re- porting these improvement recommendations. This form may be completed using pencil, pen, or type- writer. DA Form 2028 will be completed in tripli- cate and forwarded by the individual using the manual. The original and one copy will be for- warded direct to: Commanding General, U.S. Army Electronics Command, ATTN: AMSEL- MRMP-P, Fort Monmouth, New Jersey, 07703. One information copy will be furnished to the indi- viduals immediate supervisor (officer, noncommis- sioned officer, supervisor, etc). 2 SECTION II. FIRST ECHELON FUNCTIONAL PARTS LIST ILLUSTRATION DESIGNATIONUNITQTY FEDERALBYDESCRIPTIONOFEXPAUTHFIGITEM STOCK NUMBERMODELISSUENO.NO. ANTENNA TUNING UNITS BC-393-A, B; TUNNER, RADIO FREOUENCY TN-339/G Grd thru AGCTECHNICAL MANUAL TM 11-5820-257-12P2 NOTE: Model Column 1 refers to BC-939-A; Column 2 refers to BC-939-B; Column 3 refers to TN-339/GR 5820-223-4641ANTENNA TUNING UNITS B; Signal dwg SC-DL-34 409NX11 5820-681-9667TUNER, RADIO FREQUENCY: 2 to 10 mc and 1C to 20 mc; 2 bands;1 9-3/32 x 13-5/16 x 21-1/4 o/a dim; Barker TUNER, RADIO FREQUENCY TN-339/GR NOTE: Model column 1 refers to BE-939-A; Column 2 refers to BE-939-B; Column 3 refers to TN-339/GR 5820-223-4641ANTENNA UNITS BE-939-A, B: Signal dwg SC-DL-34409NX1 5820-681-9667TUNER, RADIO FREQUENCY TN-339/GR: 2 to 1C me and 10 to 20NX mc; 9-J/32 x 13-5/16 x 21-1/4 o/a; Baiker 20,000v. ac. peak1*2C22 28 amp, 2-1/4 dia. x 6-1/2 lg Jenning Mfg. VC-12 5910-160-0395CAPACITOR, FIXED,VACUUM D1 ELECTRIC: 5C mmf; 2% 2C,000 V 11*2C30 peak; 2-1/4 dia x 5 lg Eimdc type VC 50-20 5820-161-0145CRANK, HAND: Signal dwg SC-B-34445 Grp 2 1* 5820-128-9734CRANK, HAND: Signal dwg SC-B-34445 Grp 11* 5985-498-0395HANDLE: Signal dwg SC-B-34446 2* 5355-160-5887KNOB: accom 1/4 shaft; pointer attached; Kurz-Kasch p/n1* S -309-64-BB-40269 5355-160-0697 KNOB: accom 1/4 shaft w/o marking; Kurz-Kasch p/n1* S-309-64BB SELMS 002 TF 1 JUN 6BC-939-A, B, Units - same as Active Army except allowance is one copy for each unit. USAR: None. For explanation of abbreviations used, see AR-320-50. 12 U .S. GOVERNMENT PRINTING OFFICE: 1986-155 405/406 28 PIN : 010153-000 CHANGETM 11-5820-257-12P C1 HEADQUARTERS DEPARTMENT OF THE ARMY No. 1Washington, DC, 24 March 1983 OPERATOR AND ORGANIZATIONAL MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS LIST AND MAINTENANCE ALLOCATION CHART FOR ANTENNA TUNING UNITS BC-939-A AND BC-939-B (5820-00-223-4641) AND TUNER, RADIO FREQUENCY TN 339/GR (5820-00-681-9667) TM 11-5820-257-12P, 10 June 1964, is changed as follows: Page 4, Section III.1 is added after Section III. 1 SECTION III.1 CROSS REFERENCE INDEX. The Cross-Reference Index is a cross-reference listing of part number to Na- tional Stock Number. a. Use of Cross-Reference Index . To order a part listed in the Cross-Reference Index, note part number and then cross-reference that part number to the National Stock Number in the cross-reference index. Then order through normal orde ring channels. b. Ordering Part Numbers Without National Stock Number. If the part number does not have a National Stock Number, then order the part through normal ordering channels using the part number and the FSCM. 2 CROSS REFERENCE INDEX FORMAT Parts With AN FSN FSNNEW NSNFSCMPART NUMBER 58201289734582000128973480063SC-B-34445GRP 1 59101600395591000160039506890VC-50-20 53551605887535500160588775376S-309-64BB-40269 58201610458NONE80063SC-B-34445 GRP 2 53551610697NONE75376S-309-64BB 58202234641582000223464180058BC-939A,B 58202234641582000223464180058BC-939A,B 59854980395598500498039580063SC-B-34446 59105748160NONE74963VC-12 58206819667582000681966780058TN-339/GR 58206819667582000681966780058TN-339/GR 3 By Order of the Secretary of the Army: E. C. MEYER General, United States Army Official:Chief of Staff ROBERT M. JOYCE Major General, United States Army The Adjutant General DISTRIBUTION: To be distributed in accordance with DA Form 12-51 Operator Maintenance requirements for BC-939 and TN-339/GR PIN: 010153