Assembly Continued

INSTALL THE FEED PAWLS, FEED PAWL FLAT SPRINGS, AND HEADLESS STRAIGHT PINS. a. Position the feed pawl flat spring (14) into the indicated area of the outer feed slide (15), as shown. b. Holding the feed pawl (16) and feed pawl flat spring (14) in place, insert the headless straight pin (17). Ensure the headless straight pin is equally extended on both sides. Follow this procedure for both feed pawls. 4. INSTALL THE FEED SLIDE ASSEMBLY INTO FEED TRAY. a. Align the tabs on the feed slide assembly...

Caution

Ensure spring washer is properly installed. Bent, burred, or aluminum buildup on vertical cam assembly. PITTED, BURRED, OR ALUMINUM BUILDUP ON VERTICAL CAM ASSEMBLY 1. Remove the vertical cam assembly and the primary drive lever (WP 0059 00). Do not use any abrasive paper other than 600-grit silicone carbide abrasive paper. Other abrasive paper could cause damage to the vertical cam. 2. Inspect the chromed surface (1) of the vertical cam for nicks, pits, burrs, scratches, and aluminum buildup....

Corrective Action

Press the two feed pawls (1) on the feed slide assembly. They should depress all the way and snap back crisply. Remove the feed slide assembly from the feed tray (WP 0044 00). Remove feed pawls, straight headless pins, and feed pawl flat springs. If one of the feed pawl flat springs is broken, replace both. Clear any obstructions between the feed pawl flat spring and feed pawl. Deburr with a stone, lubricate lightly, and assemble.

Corrosion Prevention And Control

Corrosion Prevention and Control (CPC) of Army material is a continuing concern. It is important that any corrosion problems with this item be reported so that the problem can be corrected and improvements can be made to prevent the problem in future items. While corrosion is typically associated with rusting of metals, it can also include deterioration of other materials such as rubber and plastic. Unusual cracking, softening, swelling, or breaking of these materials may be a corrosion...

End Of Work Package

MK 19 MOD 3 40 MM MACHINE GUN (NSN 1010-01-126-9063) UPGUNNED WEAPONS STATION MK 19 40 MM MACHINE GUN (NSN 1010-01-362-6513) UNIT TROUBLESHOOTING - GUN DIFFICULT TO CHARGE SC 4933-95-CL-A07 with addition of SL-3-00607A (Marine Corps only) Tool kit, small arms repairman, SC-5180-95-CL-A07 Tool set, intermediate maintenance, SL-3-08669A (Marine Corps only) Tool set, organizational maintenance, SL-3-08668A (Marine Corps only) Abrasive cloth (item 3, WP 0124 00) Lubricant (as required)

Equipment Data

rounds per minute rounds per minute Maximum effective 1,500 meters (point target) Angle of of automatic fire at any angle between 70 degrees depression and 70 degrees elevation, based upon the mounting arrangement. Mean Time to minutes (removal replacement of a critical part) Belt belt from vertical position without reduction

Extracting Delinking The Round From The Belt

When the operator presses the trigger (10) after charging the gun, the bolt slams forward under spring tension. The bolt's extractors (11) snap over the cartridge of the leading round. As the operator charges the gun a second time, the link on the second round in the feeder contacts a depression in the receiver forcing the male and female links apart. As the round (8) is pulled rearward by the extractors (11), the curved edge of the vertical cam assembly (12) forces the round down the face of...

Firing

The releasing of the firing pin detonates the primer. Before the MK 19 MOD 3 will fire The bolt must be to the rear with the firing pin cocked. A round must be centered on the face of the bolt by the bolt fingers. Both charger handle assemblies must be forward, up, and locked. If either charger handle assembly is down, the bolt sear will not come in contact with the forward end of the receiver to allow the firing pin to fire the round. The thumb safety (18) must be on 'F' (FIRE). When the...

General

Knowing how to use this manual is very important to you. a. References are to paragraphs in this manual or to other publications. b. Throughout this manual, text is keyed to the illustrations by use of numbered callouts. When an item is called out in a procedure, a number in parentheses in the text corresponds with a number on the illustration. c. Each task begins with a setup sheet. It tells you what you need to do the task tools, materials, parts, and other publications. It tells you what...

How To Use This Manual Continued Troubleshooting Overview

This procedure is designed to isolate failures in the gun system. The procedure should start with a step-by-step functional test in the Operator's Manual to identify the problem. The functional test sends the mechanic to troubleshooting procedures, isolating the malfunction. When the malfunction is located, the mechanic is sent to the replace or repair paragraph. After the repair is finished, the mechanic is sent back to the functional test. This verifies a successful repair. After a...

Indexes

This manual is organized to help you quickly find the information you need. There are several useful indexes a. Table of Contents. The table of contents lists, in the order of presentation, all chapters, work packages, and alphabetical index and gives the page numbers where they begin. b. Alphabetical Index. This index, located at the back of the book, is an extensive subject index for the entire manual. The page numbers following each entry tell you where in the manual to find a particular...

Inspection Of Installed Itemsrepair

With the feed slide assembly either removed or installed, press the feed pawls to verify crisp spring action. If either feed pawl is weak, install a new feed pawl flat spring on both sides. 3. Whenever the housing is removed for parts replacement, measure the shuttle spring using a caliper. See WP 0057 00 for critical dimension of the shuttle spring. 4. Perform function check (WP 0039 00) of the feed slide assembly following completion of maintenance and or installation of any of the following...

Lists

A list of unusual or unfamiliar terms used in the manual is located in the glossary. b. Metric US Customary Measurement Chart. Measurements in this manual are given in both metric and US customary units. The table inside the back cover compares metric measurements to their equivalent US customary units. Also provided are conversion factors to convert metric units to US customary units. c. Nomenclature Cross-Reference List and List of Abbreviations. (1)...

Malfunction

Welded pins missing from receiver link guide burred or galled. CORRECTIVE ACTION Evacuate the weapon to Direct Support Maintenance. Function check the feed operation (WP 0039 00) using six linked dummy rounds. If a galled link guide in receiver or feed tray prevents feeding, evacuate to Direct Support Maintenance. (Marine Corps replace feed tray (WP 0041 00), as required, at Unit Maintenance.)

Note

Refer to WP 0041 00 for general disassembly of your weapon. Bolt Does Not Reach Sear Charger Handle(s) Override Bolt Deformed Case Or Round Erratic Gun Difficult to Charge WP 0008 00 WP 0006 00 WP 0019 00 WP 0018 00 WP 0013 00 WP 0007 00 WP 0009 00 WP 0015 00 WP 0020 00 WP 0017 00 WP 0011 00 WP 0010 00 WP 0012 00 WP 0016 00 WP 0014 00 Gun Will Not Hard Firing (Excess Obstructed Premature Rounds Will Not Rounds Will Not Rounds Will Not Runaway Gun (Uncontrolled Automatic Fire) Sluggish

Reporting Errors And Recommending Improvements

If you find any mistakes or if you know of a way to improve the procedures, please let us know. Submit your DA Form 2028 (Recommended Changes to Publications), through the internet, on the Army Electronic Product Support (AEPS) website. The internet address is http aeps.ria.army.mil. If you need a password, scroll down and click on ACCESS REQUEST FORM. The DA Form 2028 is located in the ONLINE FORMS PROCESSING section of the AEPS. Fill out the form and click on...

Warning

Appropriate eye protection is recommended when cleaning the weapon and or its parts. If possible, clean bore and chamber immediately after firing to minimize carbon buildup. Remove caked-on carbon with abrasive cloth. 3. Remove the bolt and backplate assembly (WP 0059 00), the vertical cam assembly, and the primary drive lever (WP 0059 00). Examine the chromed edge and entire surface of the vertical cam assembly for bends, burrs, nicks, pits, scratches, or dull spots. Remove with abrasive cloth...

Warning Summary

Before performing any procedure, ensure the weapon is clear of any ammunition. Do not approach or handle a dud (a fired round which fails to explode on impact). The dud could explode any time after firing, causing injury or death. Be prepared to catch dropped ejected live round from weapon. Ensure all ammunition and non-essential personnel are at least 65 meters to the rear of the weapon. Any unusual occurrence during firing (e.g. short recoil, out-of-battery, excess smoke, flash, loud or...

Mk 19 Ammo Needles

Do not disassemble for cleaning or lubrication. The cotter pin on the control grip assembly must be discarded each time it is removed and replaced with a new one. (1) Using needle-nose pliers, remove the cotter pin (6). (2) Remove the straight pin (7). (3) Lift off the manual trigger plate (8). (4) Lift out the operating rod (9) and helical compression spring (10). d. Remove the handle components (MK 19 MOD 3 only).

Info

Install finger springs (25), RH and LH bolt fingers (26), and slotted head shoulder bolts (27). (1) Install the ends of the finger spring (25) between the welded pin on the bolt finger (26) and the pin on the bolt. (2) Using open end wrench on combination tool, squeeze the finger spring (25) and bolt finger (26) against the front of the bolt. Install and tighten the slotted head shoulder bolt (27) using a large flat-headed screwdriver.

Adjustment Continued

Glock Exploded View

Select a feed slide stop shim which is the next smaller size than the dimension obtained in step 19. 24. Remove the feed slide stop kit assembly screw. Install the feed slide stop shim into the slot in the outer feed slide. 25. Install the inner feed slide in its proper position. 26. Assemble the feed slide assembly using three new self-locking socket head screws. 27. Install feed slide assembly into the feed tray of the weapon. Install the secondary drive lever and the feed slide assembly...

Table Of Contents

DESCRIPTION AND THEORY OF OPERATION Repair Parts and Special Tools, TMDE, and Support Equipment 0004 00 CHAPTER 2. UNIT TROUBLESHOOTING PROCEDURES Runaway gun (uncontrolled automatic 00 Deformed case or round (short recoil, uncontrolled 00 CHAPTER 3. DIRECT SUPPORT TROUBLESHOOTING PROCEDURES Runaway gun (uncontrolled automatic 00 Deformed case or round (short recoil, uncontrolled 00

Maintenance Forms Records And Reports Continued

Marine Corps Users refer to those forms and procedures used for equipment maintenance as prescribed by the current edition of TM 4700-15 1. Navy Users refer to those forms and procedures used for equipment maintenance as prescribed by the current edition of TM 4700-15 1, Equipment Record Procedures. Accidents involving injury to personnel or damage to material will be reported on DA Form 285 (Accident Report) in accordance with AR 385-40. Explosives and ammunition malfunctions will be reported...

Warning Summary Continued

Ensure stow pin and depression stop are installed before attaching MK 64 mount to tripod. Refer to TM 9-1010-231-13& P. The shuttle spring and spring housing are held under pressure. Always use the feed slide tool to secure the spring before removing the screws. Failure to observe this warning will result in injury. Empty the cartridge catch bag frequently during firing. If the cartridge catch bag becomes too full, spent cases can jam the weapon causing stoppage and out-of-battery firing....

Inspection Of Installed Items

GENERAL INSPECTION OF BOLT AND BACKPLATE ASSEMBLY. a. Inspect the bolt and backplate assembly each time it is detail stripped, as follows (1) Measure the length of all springs as listed in WP 0057 00, using a dial caliper to measure any spring under 6 inches long. Use a tape measure to measure springs more than 6 inches. (2) Inspect the general condition of all parts, especially those noted below. Make repairs replacements as authorized by the SMR code in the Repair Parts and Special Tools List...

Mk 19 Accuracy Test

Catch the ejected dummy round as it comes out of the bottom of the weapon. The round's ogive may become dented if the round is dropped. v. Remove dummy ammunition from the gun, using the combination tool assembly. w. Pulling the gun chargers to the rear, hold one gun charger to restrain the bolt. Disengage the receiver sear and allow the bolt to return safely to battery. x. Install the feed throat assembly and repeat steps n through q using linked dummy rounds. Verify gun meets requirements of...

Mk19 Buffer Springs

Measure springs less than 6 inches long using a dial caliper. Measure springs over 6 inches long using a tape measure. If the length is less than that given below, replace with a new spring. Replace all parts of springs (such as extractor springs, finger springs, etc.). Measure and replace springs only when performing maintenance requiring disassembly assembly of components. Cocking Lever Spring (Spring, Helical) 1 Sear Buffer Spring (Spring, Helical) 3269425 1 LH, RH Extractor Spring (Spring,...

Inspection Of Installed Items Continued

(1) Measure the amount of wear on the inside of the tip using a dial caliper. If the length of the flat exceeds 0.100 inch, discard the cocking lever and install a new one. (1) Using a sharp knife, trim away any material extruded beyond the ends. Do not remove any material from the diameter. The part will be reassembled as removed.

Lock Plunger Tool Mk19

The cotter pin and slotted spring pin must be discarded each time they are removed and replaced with new ones. 1. INSTALL THE HELICAL COMPRESSION SPRING, LOCK PLUNGER, AND SLOTTED SPRING PIN. a. Insert the lock plunger (1) into the hole in the charger housing (2) from outside to inside. b. Place the charger housing (2), top side up, on a flat surface, so the lock plunger (1) is exposed. Insert the helical compression spring (3) into the lock plunger. Be sure to compress the helical compression...

Mk 19 Bolt Buffer Bodies

Do not immerse the bolt buffer assemblies in water or solvent. Do not lubricate the internal parts. Ensure all parts are clean, dry, and not lubricated when assembling. 1 Place the bolt buffer body 6 in a copper-jawed vise, threaded end upward. 2 Insert the narrow end of the bolt buffer plunger 7 into the bolt buffer body 6 . 3 Alternate the recoil mechanism buffers 8 and spring washers 9 on top of the bolt buffer plunger 7 , exactly in the order shown. Push them down all the way, using a large...

Safety Mechanisms

Components which prevent the weapon from firing accidentally or interrupt the firing cycle intentionally are considered safety mechanisms. These include a. Thumb safety 1 . Activates the safety slide inside the sear assembly. The safety slide blocks the sear from being depressed by the operator as long as the safety is on 'S' SAFE . b. Charger handle assemblies down. The safety slide on the inside edge of each charger arm slides rearward as the handle assembly is rotated down. With a handle...

Recoil And Automatic Feeding

Gunshot Wounds

The gases from the burning powder blow the bolt rearward with a new round in its extractors. During recoil, several functions happen almost at once. The new round is extracted and is cammed down on top of the spent case by the vertical cam's curved rail. The spent case with its link still attached is forced out of the bolt fingers and out the bottom of the gun ejection . The feed slide assembly pulls the round to the right in the receiver's ammunition-feed area, where a new round is now ready...

Mk 19 Alignment Guide Assembly

Install a new spring pin each time the old spring pin is removed. a. Position the drive lever lock 1 on the vertical cam 2 , so that the curved step on the drive lever lock is upward as shown. b. Place the two ends of the drive lever lock in a vise. This keeps the ends of the lock from bending during step c. c. Using the hammer, tap a new spring pin 3 into the aligned holes on one side. Guide the pin as you continue to tap it in, until the pin enters the aligned holes on the other side of the...

Marine Corps Stocklist Sl-3 00607a Tool Kit Small Arms Repairman

MK 19 MOD 3 40 MM MACHINE GUN NSN 1010-01-126-9063 UPGUNNED WEAPONS STATION MK 19 40 MM MACHINE GUN NSN 1010-01-362-6513 MAINTENANCE OF MK 19 MACHINE GUN - GUN CHARGER RIGHT HAND LEFT HAND DISASSEMBLY ASSEMBLY DISASSEMBLY, INSPECTION OF INSTALLED ITEMS, REPAIR, ASSEMBLY Tool, combination assembly PN 3269494 SC 4933-95CL-A07 with addition of SL-3-00607A Marine Corps only Tool kit, small arms repairman, SC-5180-95-CL-A07 Tool set, intermediate maintenance, SL-3-08669A Marine Corps only Tool set,...

Nsn

DISCLOSURE NOTICE This information is furnished upon the condition that it will not be released to another nation without the specific authority of the Department of the Army of the United States, that it will be used for military purposes only, that the individual or corporate rights originating in the information, whether patented or not, will be respected, that the recipient will report promptly to the United States, any known or suspected compromise, and that the information will be...

How The Mk 19 Sear Works

How The Sear Works

The receiver sear cannot be lowered if the recoil pins are in the way. Ensure the recoil pins are pushed toward the outside of the sear housing before attempting to lower the receiver sear. a. Raise the receiver sear 29 . Insert either recoil pin 31 , round end first, into either side of the sear housing 19 until the narrow flat end is flush with the outside of the sear housing. Ensure the narrow flat end is horizontal to the sear housing. b. Slide the receiver buffer body 9 onto the sear...

Mk19 Receiver Buffer Bodies

If no further measurement is necessary, install the sear assembly onto the receiver. If the dimension is less than 0.283, go to step f . If it is more than 0.313, go to step h. f. If the dimension for either receiver buffer body in step g was LESS than 0.283 1 Remove the receiver buffer body from the sear housing. 2 Remove the inner components from the receiver buffer body. 3 Take one washer from the extra nominal washers in Group A 4 3 sets of 6 and place it parallel curved in the same...

List Of Abbreviations

Obstruction Detector Technical Inspection Group Code Molybdenum Disulfide Explosive, Dual Purpose Explosive oil lubricating oil lubricating oil Allocation Chart Higher Assembly Maintenance, and Recovery Repair Activity Measurement, and Diagnostic Equipment Practice Weapons Station Bore Cleaner

Location And Description Of Major Components Continued

Hinges to the underside of the top cover assembly and to the receiver by two knurled straight pins. Holds the feed slide assembly, which slides on the rails of the tray. A feed tray pawl and spring are attached to the feed tray by a grooved pin. The UGWS configuration has a flexible chute attached, which feeds rounds from an ammunition bin on the left side of the weapon. u. FEED SLIDE ASSEMBLY 19 . Consists of a steel outer feed slide, feed pawls, a housing, and the internal...

Mk 19 Feed Tray Pin Knurled

Pictures With Feed Tray Open

Before performing any procedure, ensure the weapon is clear of any ammunition. 1. REMOVE FEED THROAT ASSEMBLY MK 19 MOD 3 ONLY . a. Squeeze shoulder pins 1 on feed throat and pull away from receiver 2 . a. Place the safety on 'F' FIRE . Retract the backplate pin assembly 3 from the appropriate side, using a screwdriver on the combination tool. Pull the backplate pin assembly straight out. 3. REMOVE BOLT AND BACKPLATE ASSEMBLY. a. With the backplate pin assembly removed, lift up slightly on...

Mk19 Round Removal Tool

Feed Throat For Mk19

Excessive staking will cause binding when plungers are exercised. Do not overstake. b. Align hole, insert shoulder pin 4 and stake. Insert new helical spring 5 and new feed throat plunger 2 or 3 , larger end first, in plunger hole. Align hole, insert shoulder pin 4 and stake. MK 19 MOD 3 40 MM MACHINE GUN NSN 1010-01-126-9063 UPGUNNED WEAPONS STATION MK 19 40 MM MACHINE GUN NSN 1010-01-362-6513 MAINTENANCE OF MK 19 MACHINE GUN - ROUND REMOVAL TOOL DISASSEMBLY ASSEMBLY DISASSEMBLY, INSPECTION OF...

Table Of Contents Continued

00 Maintenance Allocation Chart MAC Introduction 00 Maintenance Allocation Chart MAC 00 Tools and Test Equipment Requirements for MK 19 MOD 3 Tools and Test Equipment Requirements Army and Other Introduction to Repair Parts and Special Tools List 00 Repair Parts and Special Tools List RPSTL Group 00 Machine Gun, 40MM, MK 19 MOD 3 Group 01 Machine Gun, 40MM, MK 19 MOD 3 33269419 and Upgunned Weapons Station 7004160 Group 02 Bolt and Backplate Assembly 3269401 00 Group 0204 Control Grip Assembly...

Disassembly Continued

REMOVE HELICAL COMPRESSION SPRING AND SEAR SPRING PIN. a. Place the thumb safety 1 in 'F' FIRE position. b. Lift the receiver sear 2 . Remove the helical compression spring 3 and sear spring pin 4 . 3. REMOVE THE SEAR HOUSING CAP SOLENOID . a. MK 19 MOD 3 Rotate the sear housing cap 5 90 degrees in either direction and remove. Upgunned Weapons Station Rotate the solenoid 6 90 degrees in either direction and remove. 4. REMOVE THE RECEIVER BUFFER BODIES AND THE RECOIL PINS. a. Raise the...

Reporting Equipment Improvement Recommendations

If your machine gun needs improvement, let us know. Send us an EIR. You, the user, are the only one who can tell us what you don't like about your equipment. Let us know what you don't like about the design or performance. Put it on SF 368 Product Quality Deficiency Report . Mail it to us at Commander, US Army Armament Research, Development and Engineering Center, ATTN AMSTA-AR-QAW-A R Customer Feedback Center, Rock Island, IL 61299-7300. FAX Commercial 309 782-6653, DSN 793-6653 e-mail quaqdrs...

Mk19 Bore Constriction Gage

Appropriate eye protection is recommended when cleaning the weapon and or its parts. a. Clean the bore and chamber. Then screw the bore constriction gauge 3 onto the tip of the cleaning rod. Insert the gauge into the flash suppressor to ensure any dents do not affect its functioning. If the gauge will not pass through the flash suppressor, remove the flash suppressor. Continue inserting the gauge into the bore all the way through the chamber. Verify the bore constriction gauge passes through...

Assembly

Pin Grooved Rifle

ATTACH THE LOCK SHOULDER PIN TO THE LO CK HANDLE. a. Install the lock handle 1 over the lock shoulder pin 2 , pin holes aligned. Insert the headless grooved pin 3 into the lock handle. Lay the assembly on a bench block and tap in the headless grooved pin with 1 8 inch punch and hammer. 2. ATTACH HELICAL TORSION SPRING, COVER LOCK, AND LOCK SHOULDER PIN. a. Insert helical torsion spring 4 and cover lock 5 in the top cover. Ensure the arm on the spring is under the welded crosspin on the...

Pivot Post Mk19

Primary Charger Assemblies

If the secondary drive lever is not properly engaged with the inner feed slide pin, the weapon will not feed. a. Slide the vertical cam assembly 17 through the rear of the receiver until the raised portion slides over the lip of the receiver 13 and the pivot post holes are aligned. Engage the forked end of the vertical cam assembly with the forward notch in the receiver 13 . Slide the primary drive lever 18 through the forward end of the receiver until the large pivot post 19 can be pushed...

Feed Throat Assembly

Shoulder Pin Threads Threaded

Place the arm with charger handle lock in a vise. Drive in the slotted spring pin 7 using a brass-head hammer. Ensure the ends of the slotted spring pin are flush with the arm. 3. INSTALL THE HELICAL COMPRESSION SPRING, CHARGER SLIDE, ARM, SELF-LOCKING NUT, AND COTTER PIN. a. Insert the threaded end of the charger slide 8 through the center groove on the charger housing 2 . Ensure the threaded end is to the outside of the housing. b. Position the helical compression spring 9 in the hole in...

Mk-19 Alignment Procedure

5180 462 4254

Before performing any procedure, ensure the weapon is clear of any ammunition. END OF WORK PACKAGE MK 19 MOD 3 40 MM MACHINE GUN NSN 1010-01-126-9063 UPGUNNED WEAPONS STATION MK 19 40 MM MACHINE GUN NSN 1010-01-362-6513 PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS TABLE Tool kit, small arms repairman, SC-5180-95-CL-A07 with addition of SL-3-00607A Marine Corps Only Tool set, intermediate maintenance, SL-3-08669A Marine Corps only Tool set, organizational maintenance, SL-3-08668A Marine Corps...

Maintenance Procedures

Mk19 Grenade Launcher Nsn

Initial Setup is a list of everything needed in order to do maintenance on one part of the weapon. Tools and Special Tools Lists tools needed to perform maintenance. Materials Parts Lists expendable durable materials and 100 replaceable parts. Each material or part is followed by a part number or work package reference. If more than one part is needed, the quantity needed precedes the part number or reference. Personnel Required Lists the number of personnel needed when more...

Pump Action Shotgun Internal Assembly

Shotgun Inside

OGIVE PLUNGER ASSEMBLY SEE NEXT PAGE OGIVE PLUNGER ASSEMBLY SEE NEXT PAGE 2. Sand and Dust. Brush a generous coat of lubricant on all critical points shown in the illustration. Upon assembly, pack more lubricant into the following areas a. Between the round positioning block 1 and forward receiver wall. b. Between the alignment guide assembly 2 and forward receiver wall. d. Under the charger handle locks and between the charger housing and receiver 4 . f. Inside the sear assembly, under the...

What Is Included In 4933-00-754-0664

The L maintenance level is not included in column 4 of the MAC. Functions to this level of maintenance are identified by a work time figure in the H column of column 4 , and an associated reference code is used in the REMARKS column 6 . This code is keyed to the remarks and the SRA complete repair application is explained there. Column 5 Tools and Equipment Reference Code. Column 5 specifies, by code, those common tool sets not individual tools , common Test, Measurement and Diagnostic...

40mm Yellow Marking

Mk19 Characteristics

Tool sets referenced in this work package for Organizational and Direct Support Level Maintenance are for Marine Corps Navy use only. The dummy cartridge, 40 mm, M922 M922A1 DODIC B472 linked with M16A2 links, 10 rounds per belt, packed in an M2A1 metal box will be authorized for each MK 19 MOD 3 and for each Tool Set, Organizational Level Maintenance NSN 5180-01-143-9605 and Tool Set, Direct Support Level Maintenance NSN 5180-01-143-9604 . Dummy cartridges for the tool sets are to be...

Cotton Tipped Gun Cl

Mk19 Ugws Modified

MK 19 MOD 3 40 MM MACHINE GUN NSN 1010-01-126-9063 UPGUNNED WEAPONS STATION MK 19 40 MM MACHINE GUN NSN 1010-01-362-6513 MAINTENANCE OF MK 19 MACHINE GUN - MODIFICATION OF MK 19 MOD 3 MACHINE GUN TO THE MK 19 MOD 3 UPGUNNED WEAPONS STATION UGWS MARINE CORPS ONLY DISASSEMBLY, MODIFICATION, ASSEMBLY SC 4933-95-CL-A07 with addition of SL-3-00607A Marine Corps only Tool kit, small arms repairman, SC-5180-95-CL-A0 Tool set, intermediate maintenance, SL-3-08669A Marine Corps only Tool set,...

Feed Pawl Assembly M249

M249 Feed Tray Assembly

If the secondary drive lever is not properly engaged with the inner feed slide pin, the weapon will not feed. 1. INSTALL THE SECONDARY DRIVE LEVER. a. Engage the forked end with the inner feed slide pin 1 of the feed slide assembly. Raise the feed tray with the feed slide assembly, and secondary drive lever attached. Press the pivot post through the hole in the top cover. It should snap in place. MK 19 MOD 3 40 MM MACHINE GUN NSN 1010-01-126-9063 UPGUNNED WEAPONS STATION MK 19 40 MM MACHINE GUN...

Mk19 Sear Assembly

Mk19 Sear Assembly

Whenever a new receiver sear is installed, also install a new bolt sear. Adjust the gun's timing. Army Evacuate to Direct Support Maintenance. 1. Inspect receiver sear 1 for wear. Replace if worn, observing NOTE, above. PREVENTIVE MAINTENANCE CHECKS AND SERVICES PMCS - Continued Table 1. Preventive Maintenance Checks And Services For The MK 19 Mod 3 Machine Gun - Continued Table 1. Preventive Maintenance Checks And Services For The MK 19 Mod 3 Machine Gun - Continued 2. Using a dial caliper,...

Ctg 40mm He M383

M383 Ammunitions

Use only ammunition linked with M16A2 links. Use of 40 mm ammunition with either M16 or M16A1 links will cause weapon stoppages. 1. Not for Army Use. This category of item will no longer be procured but may be available in Navy stock and may be issued as a substitute item for the Standard A item until stock is exhausted. Ammunition containing either the M16 or M16A1 links are not to be used in the MK 19 MOD 3 as weapon stoppages will occur. The M16A2 link is the only link compatible with the...

Compression Spring Housing

Spring Helical Compression Browning

Install new cotter pin upon reassembly. a Drop the helical compression spring 9 into the hole in the body mounting plate 1 . Insert the narrower tip of the operating rod 10 through the helical compression spring. b. Position the manual trigger plate 11 on top of the operating rod 10 . Align the pinholes in the manual trigger plate with those in the body mounting plate. c. Insert the straight pin 12 through the pinholes. Insert a new cotter pin 13 to secure. 4. ATTACH CONTROL GRIP ASSEMBLY. a....

Mk19 Feed Slide Assembly

Cal Broken Feeder Pawl

Position the feed slide assembly fully to the left while in the feed tray. Close the top cover, observing the CAUTION. a. Charge the weapon slowly. Place the safety on 'S' SAFE . b. Go to the front of the receiver and check the primary pawl lever 3 , located under the receiver feed tray area. Check the primary pawl lever. If it is flush with the receiver, the pawl is down flush in the feed area. Evacuate the weapon to Direct Support Maintenance. If the primary pawl is protruding downward...

Symptom Continued

MALFUNCTION Loose or cracked right-hand RH and left-hand LH cam followers. CORRECTIVE ACTION Manually test the RH and LH cam followers 1 for looseness and check for cracks on the top. If RH and LH cam followers are cracked or loose, evacuate to Direct Support Maintenance. Marine Corps tighten nylon point set screws 2 as required and perform other repair at Unit Maintenance.

Mk19 Cracked Sear Bolt

Machine Gun Silhouette

Install new f t's timing WP 0069 00 . 1. Check the bolt sear 1 for damage. 2. Check the firing pin sear 2 for damage. 3. Measure the springs see WP 0057 00 . 4. Replace any worn or broken parts. Test the firing pin operation again. 5. Verify that the pin springs forward. 6. Adjust the bolt's timing WP 0069 00 . MK 19 MOD 3 40 MM MACHINE GUN NSN 1010-01-126-9063 UPGUNNED WEAPONS STATION MK 19 40 MM NSN 1010-01-362-6513 DIRECT SUPPORT TROUBLESHOOTING - ERRATIC FIRING SC-5180-95-CL-A07 Tool kit,...

Mk19 Bolt Fingers

Mk19 Machine Gun Bolt

If the rounds feed across the receiver's feed area, but are not pulled to the rear and down the face of the bolt during charging or recoil, check the components as noted in this symptom's malfunctions. Remove rough spots with abrasive cloth. Remove burrs with a stone. Abrasive cloth item 3, WP 0124 00 Lubricant as required WP 0057 00 WP 0059 00 WP 0068 00 WP 0070 00 Rounds will not extract eject. MALFUNCTION Firing pin will not retract defective firing pin, cocking lever, pin, or spring . With...