TECHNICAL MANUAL ORGANIZATIONAL MAINTENANCE …

1 TM 3-1040-268-20&PTECHNICAL MANUALORGANIZATIONAL MAINTENANCE MANUAL (INCLUDING repair PARTS AND SPECIAL TOOLS LIST)FORLAUNCHER, GRENADE, SMOKE: SCREENING, RP, M250(1040-00-000-0138)HEADQUARTERS, DEPARTMENT OF THE ARMY14 MAY1982 This copy is a reprint whichincludes current pages fromchange 1 FIRST AIDFor first aid information, refer to FM 3-1040-268-20&PC1 CHANGENo. 1 HEADQUARTERSDEPARTMENT OF THE ARMYWASHINGTON, DC, 30 April 1986 TECHNICAL MANUALORGANIZATIONAL MAINTENANCE MANUAL (INCLUDING repair PARTSAND SPECIAL TOOLS LIST)FOR LAUNCHER, GRENADE,SMOKE: SCREENING, RP, M250(1040-00-000-0138)TM 3-1040-268-20&P, 14 May 1982, is changed as follows:1.

2 Remove old pages and insert new pages as indicated New or changed materials is indicated by a vertical bar in the margin of the PagesInsert Pages1-1 and 1-21-1 and 1-2C-5 through C-8C-5 through C-8 File this change sheet in the back of the publication for reference MANUALNo. 3-1040-268-20&PTM 3-1040-268-20&PHEADQUARTERSDEPARTMENT OF THE ARMYW ashington, 14 May 1982 ORGANIZATIONAL MAINTENANCE MANUAL (including repair Parts and Special Tools List)forLAUNCHER, GRENADE, SMOKE: SCREENING, RP, M250(1040-00-000-0138)REPORTING ERRORS AND RECOMMENDING IMPROVEMENTSYou can help improve this MANUAL .

3 If you find any mistakes or if you know of a way to improve the procedures,please let us know. Mail your letter, DA Form 2028 (Recommended Changes to Publications and Blank Forms),or DA Form 2028-2 located in the back of this MANUAL direct to: Commander, US Army Armament MaterielReadiness Command, Attn: DRSAR-MAS-C, Aberdeen Proving Ground, MD21010. A reply will be furnished OF CONTENTSPageHOW TO USE THIS MANUAL .. iiiCHAPTER 1 INTRODUCTION ..1-1 Section Information ..1-1 Section Description and ..1-2 Section of Operation ..1-4 CHAPTER 2 MAINTENANCE INSTRUCTIONS.

4 2-1 Section Parts, Special Tools, TMDE, and Support Equipment ..2-1 Section Il..2-1 Section MAINTENANCE Checks and Services (PMCS) ..2-4iALPHABETICAL INDEX2-4TM 3-1040-266-20&PSection AAPPENDIX BSection CSection 00 Group 01 Group 0999 Section DSection Procedures..2-12 Preparation for Storage or Shipment ..2-32 REFERENCES ..A-1 MAINTENANCE ALLOCATION CHART ..B-0 Introduction ..B-0 MAINTENANCE Allocation Chart for Launcher, Grenade, Smoke: Screening, RP,M250 ..B-1 Tool and Test Equipment Requirements ..B-1 repair PARTS AND SPECIAL TOOLS LIST.

5 C-0 Introduction .. C-0 repair Parts List ..C-4 Launcher, Grenade, Smoke, M250 ..C-5 Smoke grenade discharger ..C-7 Bulk Material ..C-9 Special Tools List (Nonapplicable) ..C-9 National Stock Number andPati Number Index ..C-10 EXPENDABLE SUPPLIES AND MATERIALS LIST.. D-1 Introduction ..D-1 Expendable Supplies and Materials List ..D-2..Index-1iiTM 3-1040-268-20&PHOW TO USE THIS MANUALNOTEI llustrations throughout this MANUAL will show the LEFT-HAND discharger for most procedures. Procedures will be identical forboth using this MANUAL :a. The launcher is either being prepared for installation on a combat tank orhas been removed for You must familiarize yourself with the entire MAINTENANCE proceduresbefore beginning the MAINTENANCE References are to pages, paragraphs, or other quick access to parts of this MANUAL , there are three Cover Index.

6 Important sections and appendixes are are keyed to page of Contents. lists in order all chapters, sections, and page Index. lists page numbers for each paragraph 1 describes the launcher and its principles of INSTRUCTIONSC hapter 2 Upon Receipt. Gives procedures for servicing launchers Provides detailed illustrated procedures for trou-bleshooting Procedures. Provides initial setup and detailed proce-dures for performing MAINTENANCE functions authorized by the mainte-nance allocation chart (MAC), appendix for Storage or Shipment.

7 Gives criteria for storing or ship-ping appendixes contain:a. A list of all references usedb. The MACc. The RPSTL with illustrationsd. A list of expendable supples you ll neediiiTM 3-1040-268-20&P1-0TM 3-1040-268-20&PCHAPTER 1 INTRODUCTIONS ection I. GENERAL INFORMATION1-1. throughout this MANUAL will show the LEFT-HAND discharger for most procedures. Procedures will be identical forboth Type of MANUAL : ORGANIZATIONAL MAINTENANCE MANUAL , including RepairParts and Special Tools Mode/ Number and Equipment Name: M250 RP screening smoke gre-nade Purpose of Equipment.

8 To project smoke grenades from a combatvehicle to screen it from enemy MAINTENANCE FORMS, RECORDS, AND REPORTS. Department ofthe Army forms and procedures used for equipment MAINTENANCE will be thoseprescribed by DA PAM 738-750 Change 1, The Army MaintenanceManagement DESTRUCTION OF ARMY MATERIEL TO PREVENT ENEMY launcher components by using demolition or mechanical methodsdescribed in TM PREPARATION FOR STORAGE OR SHIPMENT. Refer to paragraphs2-10 through 2-13 for instructions on how to prepare launcher for storage NOMENCLATURE CROSS-REFERENCE LIST AND LIST OFABBREVIATIONS.

9 This listing includes nomenclature cross-references usedin this NameOfficial NomenclatureDischarger(s)DISCHARGER, SMOKE GRENADE: (RH,LH, or both)Discharger cover(s)COVER, PROTECTIVE DISCHARGER:(RH, LH, or both)Common NameElectrical ReceptacleConnectorGrenadeLauncherLeft Hand DischargerLeft Hand Discharger CoverM250 LauncherMultimeterResistorRight Hand DischargerRight Hand Discharger CoverSmoke Grenade LauncherAbbreviationsRP ..Official NomenclatureCONNECTOR, RECEPTACLE,ELECTRICALGRENADE, LAUNCHER, SMOKE:Screening, RP, UK L8A1, M76 LAUNCHER, GRENADE, SMOKE:Screening, RP, M250 DISCHARGER, SMOKE GRENADE: LH,No.

10 19, MK2 COVER, PROTECTIVE, DISCHARGER:LHLAUNCHER, GRENADE, SMOKE:Screening, RP, M250 MULTIMETER: TS-352B/U or equivalentRESISTOR PACK ASSEMBLYDISCHARGER, SMOKE GRENADE: RH,No, 19, MK2 COVER, PROTECTIVE, DISCHARGER:RHLAUNCHER, GRENADE, SMOKE:Screening, RP, M250 ExplanationRed phosphorousUK ..United Kingdom1-6. REPORTING EQUIPMENT IMPROVEMENT RECOMMENDATIONS(EIR). If your smoke grenade launcher needs improvement, let us know. Sendus an EIR. You, the user, are the only one who can tell us what you don t likeabout your equipment, Let us know why you don t like the design, Put it on an SF368 (Quality Deficiency Report), Mail it to us at: Commander, US Army Arma-ment Materiel Readiness Command, ATTN: DRSAR-MAP-A, Aberdeen Prov-ing Ground, MD 21010.