DEPARTMENT OF THE ARMY TECHNICAL MANUAL OPERATOR AND ORGANIZATIONAL MAINTENANCE MANUAL ARMORED RECONNAISSANCE/AIRBORNE ASSAULT VEHICLE

Transcription

1 DEPARTMENT OF THE ARMY TECHNICAL MANUAL TM OPERATOR AND ORGANIZATIONAL MAINTENANCE MANUAL ARMORED RECONNAISSANCE/AIRBORNE ASSAULT VEHICLE FULL-TRACKED, 152-MM, M HEADQUARTERS, DEPARTMENT OF HE ARMY JUNE 1966 This copy is a reprint which includes current pages from Changes I through 14. Penand-ink changes to be made are listed. For Crew Operating and Maintenance Instructions, refer to TM , 29 November 1974, TM /2-1, 31 March 1973, TM , 31 March 1973, and TM , 6 January For Organizational Maintenance of the Hull and Suspension, refer to TM , 15 February 1975.

2 TM C9 Technical Manual No HEADQUARTERS DEPARTMENT OF THE ARMY WASHINGTON, D. C., I June 1966 Operator and Organizational Maintenance Manual ARMORED RECONNAISSANCE/AIRBORNE ASSAULT VEHICLE FUU-TRACKED, 152-MM, M551 ( ) TABLE OF CONTENTS CHAPTER 1. INTRODUCTION Section 1-1. Scope, Security Classification, Maintenance Allocation, Records, Reports and Equipment Serviceability Criteria Description and Data Safety Precautions CHAPTER 2. OPERATING INSTRUCTIONS Section 2-1. Service Upon Receipt of Materiel Deprocessing Vehicle Removal/Installation of Vehicle Closure Kit Removal of Basic Issue Items Saddle Installation of Retracting Slide Assembly on Cal.. 50 Machine Gun, M2, HB Installation of Pintle Support, Cradle and Pintle Assembly, and Cupola Mechanism Switch Assembly break-in Services Vehicle Operation Starting, Driving, and Stopping Vehicle Installation and Operation of Driver s M48 Periscope Vehicle Driving Lights Amphibious Operation Erecting Flotation Surfboard and Barrier Operation of Bilge Pumps Cold Weather Starting Towing Disabled Vehicle and Towing or Supplying Auxiliary Power to Start Engine Installation of Two Shackles, Tow Bar or Tow Cables Operation of Auxiliary Equipment Operation of M8A3 Air Filter Unit Operation of Personnel Heater Operation of Portable and Fixed Fire Extinguishers Operation of Turret and Cupola Operation of Turret Commander s Ballistic Shield Plate Assemblies Operation of Cupola i

3 CHAPTER 2. OPERATING INSTRUCTIONS Section 2-5. Operation of Sighting and Fire Control and Armament Boresight Procedures Operation of M119 or M127 Telescope, XM44 Series Periscope, and Armament Boresight Procedure Aligning 7. 62MM Machine Gun Operation of Indirect Fire Control Instruments Checking and Adjusting Azimuth Indicator for Accuracy and Slippage Adjusting M13AlC Elevation Quadrant Installation, Operation, and Boresight Procedure for Cal.. 50 Machine Gun Night Vision Sight Operation of Missile Subsystem Energizing the Missile Subsystem Lamp and Meter Test Transmitter Test Tracker Alignment Test De-Energizing the Missile Subsystem Operation of Special Purpose Kits Winterization Kit Engine Coolant Heater IR/Whitelight Searchlight Kit CHAPTER 3. FIRING PROCEDURE Section 3-1. Misfire, Hangfire, and Cook-off, and Immediate Action in Case of Failure to Fire MM Conventional Ammunition MM Machine Gun Cal.. 50 Machine Gun, M2, HB MM Gun-Launcher Loading, Firing, and Unloading Checking and Adjusting Recoil Mechanism Closed Breech Scavenger System Operation Ammunition and Missile Stowage MM Machine Gun Loading, Firing, and Unloading MM Machine Gun Controls Removal of Live Round or Ruptured Cartridge Case Removal/Installation Cal.. 50 Machine Gun, M2, HB Loading, Firing and Unloading Removal/Installation of Barrel Removing Ruptured Cartridge Case Removal/Installation Cal.. 50 Machine Gun Carrier Assembly Checking and Adjusting Headspace Checking and Adjusting Timing Installation/Removal of Flash Hider Removal/Installation Gun and Spent Brass Chute M176 Grenade Launcher Checking Electrical System Immediate Action in Case of Failure to Fire Loading and Firing ii C9, TM

4 CHAPTER 4. CREW PREVENTIVE-MAINTENANCE SERVICES C 10, TM Section 4-1. Preventive-Maintenance Services Specific Procedures (Normal-Unusual Conditions) Hull Drain Holes Lubrication Service Intervals (Normal-Unusual Conditions) Turret Floor Access Cover Cleaning Crew Compartment Checking Firing Probe Continuity Deflating Blisters on CBS Hose Low Pressure Air Radiator Cleaning System Engine Bulkhead Access Panel CHAPTER 5. CREW MAINTENANCE Section 5-1. Repair Parts, Tools, and Equipment Troubleshooting Maintenance of Hull Engine Air Cleaner Power Plant Fuel System and Batteries Checking and Adjusting Track Tension Removal/Installation of Track Spare Lamps Draining Coolant and Fuel Systems Maintenance of Turret, Cupola, Sighting and Fire Control, and Missile Subsystem Units Spare Lamps Cleaning and Inspection - Sighting and Fire Control and Missile Subsystem Units Removal/Installation - M47, M48 Periscopes Maintenance of Armament Checking and Servicing Counterrecoil Buffer Removal/Installation - Evacuator Cylinder Cleaning and Lubrication of Gun-Launcher Disassembly/Assembly MM Machine Gun Disassembly/Assembly - Cal.. 50 Machine Gun, M2, HB CHAPTER 6. PREPARATION FOR AIR-DELIVERY, STORAGE AND DESTRUCTION OF MATERIEL TO PREVENT ENEMY USE Section 6-1. Preparation for Air-Delivery Storage Servicing and Processing Vehicle for Storage Missile Shipment and Storage Destruction of Materiel to Prevent Enemy Use Destruction Methods and Priority CHAPTER 7. MATERIEL USED IN CONJUNCTION WITH MAJOR ITEM Section MM Gun-Launcher Guided Missiles Firing Tables and Precautions Shillelagh Ammunition Data Chart Service Upon Receipt of Missiles Periodic Inspection of Missiles Missile Identification iii

5 CHAPTER 7 MATERIEL USED IN CONJUNCTION WITH MAJOR ITEM Continued C11, TM Section 7-2. Conventional Ammunition for 152MM Gun-Launcher M81 Series Identification Authorized Rounds Preparation for Loading Round Types Available Preparation for Firing Cartridges Prepared for Firing But Not Fired Maintenance Storage Communications Equipment Communications Data Radio Sets AN/VRC (Basic Units) and Intercommunication Equipment CHAPTER 8 ORGANIZATIONAL MAINTENANCE INSTRUCTIONS Section 8-1. General Troubleshooting Transmission Oil Pressure Check Points Ohmmeter Method of Electrical Troubleshooting Odometer, Speedometer and Tachometer Troubleshooting Organizational Preventive-Maintenance Checks and Services Preventive-Maintenance Checks and Services - Primary Armament and Related Equipment CHAPTER 9 ORGANIZATIONAL MAINTENANCE - POWER PLANT AND HULL Section Power Plant Removal/Installation/Replacement data Power Plant Removal/Installation Engine Mounts Engine Ground Test Engine and Components Engine Fuel System Engine Coolant System Filter and Air Cleaner Removal Installation Blower Assembly and Hose Removal Installation Hull Wiring Harnesses Removal Installation Engine Wiring Harness Removal Installation Transmission and Controls Transmission Internal Brake Adjustment Accelerator/Throttle Linkage Adjustment Accelerator/Throttle Control Disassembly Transmission Shift Control Removal Transmission Shift Control Adjustment Transmission Brake Control Adjustment Transmission Parking Brake Control Removal/Installation and Adjustment Transmission Brake Control Removal/Installation Transmission Land Steer Control Removal/Installation Transmission Land Steer Control Adjustment Transmission Water Steer Control Removal/Installation Transmission Water Steer Control Adjustment Control Handling Precautions iv

6 C 11, TM CHAPTER 9 CRGANIZATIONAL MAINTINANCE - AND PLANT AND HULL Continued Section 9-4. Tracks and Suspension Roadwheels Torsion Bar and Roadwheel Arm Removal/Installation Torsion Bar Anchor Removal/Installation Roadwheel Arm Spindle. Disassembly/Assembly Roadwheel Arm Housing and Shaft Disassembly/Assembly Track Adjuster Removal/Installation Idler Wheels Removal/lnstallation Idler Hub Assembly Removal/Installation Idler Housing and Spindle Removal/Installation Sprocket Drive Shafts Removal/Installation Sprocket and Carrier Wheels Removal/Installation Sprocket Hub and Support Removal/lnstallation Shock Absorber Removal/Installation Suspension System Special Tools Track and Track Shoe Replacement Hull and Power Plant Electrical Headlight Adjustment Headlight Repair Taillight Repair Headlight Dimmer Switch and Auxiliary Power Receptacle, Dome Lights Batteries Fuel Level Transmitters Starter Relay, Neutral Safety and Water Steer Switches, and Hull Circuit Breakers Removal/Installation Driver s Switch Panel Driver s Switch Panel Rectifier Time Delay Assembly Turret Master Relay Electrical Harnesses Driver s Indicator Panel Personnel Heater Control Box,? Bilge Pump Relays and Mounts, Generator V-Belt Tensioner Voltage Regulator Removal/Installation/Adjustment Generator and Drive Assy. Removal/Installation Engine Starter Removal/Installation Temperature and Pressure Switches and Transmitters Speedometer and Tachometer Generators and Odometer Adapter Removal/Installation Odometer and Tachometer Drives Cable Terminals and Connectors Replacement Hull and Components Surfboard and Barrier Supports Adjustment Surfboard and Barrier Disassembly/Repair/Assembly Driver s Rotatable Hatch Latch Release and Latch tops Driver s Rotatable Hatch 8eals Driver s Escape Hatch Driver s Seat Hull Ammunition Racks Bilge Pumps Personnel Heater Removal/Installation/Repair v

7 C 11, TM CHAPTER 9 ORGANIZATIONAL MAINTENANCE POWER PLANT AND HULL Continued Section 9-6 Hull and Components - Continued Fixed Fire Extinguisher Cylinder Replacement and Control Cable Adjustment Fixed Fire Extinguisher Control System Repair Radiator Contamination Shield and Grille Debris Screens Removal/Installation Battery and Air Cleaner Access Doors Ground Intercom Box Door Assembly Hull Interior Stowage Flotation Skin Repair Flotation Barrier Repair CHAPTER 10. ORGANIZATIONAL MAINTENANCE - TURRET AND CUPOLA Section 10-1 Turret Electrical Systems Electrical Drive Control System Turret Drive Control Checkout Procedure Using Test Set Turret Drive Control Test Set Installation Accessory Box Removal/Installation/Adjustment Accessory Box Repair Amplifier Integrator Removal/Installation Motor Generator Removal/Installation Motor Generator Brushes Removal/Installation Gunner s and Commander s Control Handle Removal/Installation Power Supply and Gyro Selector Removal/Installation Elevating and Traverse Mechanism Clutch Brush Removal/Installation Servo Motors Elevating and Traverse Removal/lnstallation Gun-Launcher Elevation and Depression Bump Stop Adjustment Conventional Weapons System Relay Box Removal/Installation Breech Scavenging Repeat Switch Loader s Control Box Removal/Installation Blasting Machine Removal/Installation Telescope Emergency Power Supply Box Removal/ Installation V Firing Circuit Power Supply Box Removal/ Installation Low Pressure Air Radiator Cleaning System Removal/Installation Breech Scavenging Compressor Removal/Installation Chemical Air Drier Cartridge Removal/Installation Compressor Air Intake Strainer Removal/Installation Dipstick and Oil Strainer Removal/Installation Missile Subsystem Checks and Adjustments Signal Data Converter and Modulator Removal/Installation Infrared Transmitter Cover Removal/Installation and Disassembly/Assembly of Door Latch and Control Assemblies Infrared Transmitter and Door Switch Removal/ Installation Missile Subsystem Power Supply Removal/Installation Rate Sensing Unit Removal/Installation vi

8 C 11, TM CHAPTER 10. ORGANIZATIONAL MAINTENANCE - TURRET AND CUPOLA... Continued Section 10-4 Missile Subsystem - Continued Missile Subsystem Test Set Removal/Installation Optical Tracker Removal/Installation Accessory and Power System Circuit Cutout Box Removal/Installation Electric Contact Ring Removal/lnstallation Gas-Particulate Filter Unit Removal/Installation Radio Antenna Removal/Installation Cupola Power Box and Control Assembly Removal/ Installation Turret Ventilating Fan Removal/Installation Grenade Launcher 120V Power Supply Removal/ Installation Turret Components Turret Traverse Lock Removal/Installation ,MM Coaxial Machine Gun Feed System Removal/ Installation/Repair Commander s Seat Removal/Installation Gunner s Seat Removal/Installation Loader s Seat Removal/Installation Turret Cable Guards Removal/Installation Loader s Hatch Cover Turret Conventional Ammunition Horizontal Racks Removal/Installation Turret Conventional Ammunition Vertical Racks Removal/Installation Turret Missile Rack, Portable Fire Extinguisher, and Extinguisher and Hose Guard Bracket Removal/ Installation Cupola Vision Blocks Removal/Installation Gunner s Leg Guard and Pad Removal/Installation Telescope Protective Shield Removal/Installation Cal.50 Maching Gun Mount Support Disassembly/ Assembly Commander s Ballistic Shield Plate Assemblies Turret Interior Stowage Turret Exterior Stowage CHAPTER 11. ORGANIZATIONAL MAINTENANCE - ARMAMENT AND FIRE CONTROL Section Primary Armament Firing Mechanism Continuity Check Counterrecoil Buffer Removal/Installation In-Battery Switch - Adjustment Procedure for Cycling CBSS MM Coaxial Machine Gun Mount Removal/ Installation Ammunition Spent Brass Chute and Bag Removal/ Installation Recoil Mechanism Hand Pump and Fittings Removal/ Installation Buffer Bleed Line Removal/Installation vii

9 CHAPTER 11 ORGANIZATIONAL MAINTENANCE - ARMAMENT AND FIRE CONTROL - Continued C14, TM Section 11-1 Primary Armament - Continued Filling and Bleeding Gun Mount Hydraulic System Gun Mount Hydraulic System Leak Test Recoil Guard Cover and Screen Removal/Installation Recoil Mechanism Reservoir and Components Removal/Installation Breech Scavenger Check Valve Removal/Installation Breech Scavenger Check Valve Disassembly/Assembly Gun-Launcher Wiring Harness and Breech Limit Switches Removal/Installation Gun-Launcher Firing Mechanism Removal/Installation Gun-Launcher Breech Drive Motor Removal/Installation Gun-Launcher Breech Drive Solenoid Removal/Installation Gun-Launcher Loading Tray Removal/Installation Gun-Launcher Loading Tray Disassembly/Assembly Gun-Launcher Loading Tray and Ejector Adjustment Gun-Launcher Loading Tray Guide and Ejector Cocking Bracket Removal/Installation Gun-Launcher Ammunition Detent and Trigger Lever Gun-Launcher Obturator Seal Removal/Installation Secondary Armament Grenade Launcher M Sighting and Fire Control Purging Laser Range Finder Units (M551A1 Only) Synchronization of XM44 Series Periscope M37 Loader s Periscope Mount and Seal Removal/ Disassembly/Assembly/Installation Driver s M47/48 Periscope Mount and Seal Removal/ Installation Driver s Periscope Washer, Pump, and Reservoir Removal/Installation M119 or M127 Telescope Removal/Installation M149 or M165 Telescope Mount Removal/Installation Inspection of Telescope Mount Bracket Bolts M13A1C Elevation Quadrant Removal/Installation XM44 Series Periscope Body and Head Removal/installation Servicing XMI44 Series Emergency Periscope Battery XM44 Series Periscope Washer, Pump, Reservoir and Blade Removal/Installation XM44 Series Periscope Linkage Removal/Installation CHAPTER 12 SPECIAL PURPOSE KITS Section General Deleted Deleted Engine and Battery Winterization Kit Less Missile System Kit Mine Protective Kit Deleted viii

10 C 10, TM ;30-12 CHAPTER 13 DESCRIPTION, OPERATION AND MAINTENANCE OF 7. 62MM MACHINE GUN M73E1 Section Description and Data Operating Instructions Maintenance Instructions Ammunition Shipment and Limited Stowage and Demolition To Prevent Enemy Use APPENDIX I. REFERENCES...A-1 APPENDIX II. BASIC ISSUE ITEMS LIST Section B-1. Introduction...B-1 B-2. Basic Issue Items List...B-3 B-3. Maintenance and Operating Supplies...B-15 APPENDIX II. MAINTENANCE ALLOCATION CHART Section C-1. Introduction...C-1 C-2. Maintenance Assignment...C-3 C-3. Tool and Test Equipment...C-24 INDEX...INDEX-1 (x Blank) ix

11 CHAPTER 1 INTRODUCTION C11, TM Scope This manual contains operating and organizational maintenance instructions for the Armored Reconnaissance/Airborne Assault Vehicle: Full Tracked, 152MM, M551. Other applicable publications are referenced in Appendix I Shillelagh Missile Subsystem Security Classification. Commander s responsibility and classification data TB Lubrication Refer to LO for crew/operator lubrication instructions Maintenance Allocation Section 1-1. SCOPE, SECURITY CLASSIFICATION, MAINTENANCE ALLOCATION, RECORDS, REPORTS, AND EQUIPMENT SERVICEABILITY CRITERIA The maintenance allocation chart (Appendix III) allocates maintenance responsibilities. Section 1-2. DESCRIPTION AND DATA 1-5. Description The M551 (figures 1-1 and 1-2) is a light weight, full tracked, deisel powered armored reconnaissance/airborne assault vehicle. It is capable of amphibious operation and can be transported and airdropped by heavy assault glider or cargo aircraft. Armament consists of a 152MM gun/launcher mounted to a 360-degree rotatable turret and capable of firing either conventional ammunition or guided missiles; a 7.82MM machine gun mounted coaxially with the gun/launcher; a cal..50 machine gun mounted to the commander s power assist cupola, which is capable of 360-degree rotation; and eight fixed-mount grenade launchers, four on each side of the turret. M551 vehicles equipped with M81 gun/launcher employ a CO Forms, Records, Reports, and Equipment Serviceability Criteria a. Forms and Records. TM b. Field Report of Accidents. (1) Injury to personnel or damage to materiel. AR (2) Ammunition accident or malfunction. AR c. Serviceability Criteria. TM ESC. d. Errors and Omissions. Report of errors, omissions, and recommendations for improving this publication by the individual user is encouraged. Reports should be submitted on DA Form 2028 (Recommended Changes to Publications) and forwarded directly to Commanding General, US Army Tank-Automotive Command, ATTN: AMSTA-MAPC, Warren, Michigan bore and breech scavenging system to clear the gun/launcher of residue and/or gases resulting from firing. Later vehicles are equipped with the M81El gun/launcher, which employs a compressed air closedbreech scavenging system for the same purpose Tabulated Data a. General Crew (1-commander, 1-driver, 1-loader, 1-gunner... 4 Weight Classification...No. 20 (Tons) Weight, combat loaded... 33,460 lb Weight, curb (less fuel, crew, and basic issue items)... 28,525 lb Weight, total air drop rate... 35,00 lb max 1-1