M113A3 M577A3 M1059A3 M1064A3 M1068A3 M58 Unit Maintenance Manual TM 9-2350-277-20-1

Description

M113A3 Family Carriers Unit Maintenance Manual TM 9-2350-277-20-1

This comprehensive unit maintenance manual covers six tracked armored carrier variants: the M113A3 personnel carrier, M577A3 command post carrier, M1059A3 smoke generator carrier, M1064A3 self-propelled 120-mm mortar carrier, M1068A3 Standardized Integrated Command Post System (SICPS) carrier, and M58 mechanized smoke obscurant carrier. Published by Headquarters, Department of the Army, this technical manual provides unit-level maintenance procedures, troubleshooting guides, and repair instructions for all major systems. Whether you are maintaining a single M113A3 or supporting an entire fleet of these tracked carriers, this M113A3 family carriers unit maintenance manual TM 9-2350-277-20-1 gives you the procedures and specifications needed to keep these vehicles operational.

File Details

• Manual Type: Unit Maintenance Manual (Technical Manual)
• Document Number: TM 9-2350-277-20-1
• Models Covered: M113A3, M577A3, M1059A3, M1064A3, M1068A3, M58
• Language: English
• File Format: PDF
• Page Count: Approximately 859 pages
• Date: 2 January 2001 (Change 5 dated 1 June 2009)

Chapters Covered

• Chapter 1: Unit Introductory Information with Theory of Operation — General Information, Equipment Description, Theory of Operation, Repair Parts and Special Tools
• Chapter 2: Unit Troubleshooting Procedures — Engine, Electrical, Transmission, Steering, Bilge Pumps, Ramp Hydraulics, Personnel Heater, Coolant Heater, MSD/ICE diagnostics, and electrical equipment (M1068A3)
• Chapter 3: Carrier Service Upon Receipt and Preventive Maintenance Checks and Services (PMCS)
• Chapter 4: Engine — Power plant removal and installation, engine mounts, air box drain check valves, lifting bracket, oil filler, oil sampling valve, oil gauge, oil filter element
• Chapter 5: Fuel System — Engine fuel pump, air cleaner service and repair, air intake elbows, exhaust evacuator valve, fuel tanks, fuel lines, fuel filters, air box heater components, glow plug system, throttle controls
• Chapter 6: Exhaust System — Exhaust elbows, double flex joint, muffler, turbo exhaust pipe heat shields
• Chapter 7: Cooling System — Radiator, auxiliary tank, thermostat, coolant pump, fan drive belts and assemblies, variable speed fan drive, transmission oil hoses
• Chapter 8: Electrical System — Generator, voltage regulator, starter, master switch panel, distribution box, circuit breakers, instrument panel, warning lights, wiring harnesses, batteries, and cables
• Chapter 9: Transmission — Transmission mounts, range controller, steering adjustment, brakes, governor, oil cooler, oil sampling valve, differential pressure switch
• Chapter 10: Transfer and Final Drive Assemblies — Final drive removal and installation, differential oil seals
• Chapter 11: Propeller Shafts and Universal Joints
• Chapter 12: Brakes — Transmission brake adjustment, service brake control linkage, parking brake control
• Chapter 13: Wheels and Tracks — Torsion bars, road wheel support arms and hubs, idler wheel arms, track tension adjusters, drive sprockets, T130 and T150 tracks, track shoes and pads
• Chapter 14: Steering — Steering wheel linkage, steering lock systems (solenoid and cable-activated), steering support and shaft
• Chapter 15: Towing Attachments — Towing pintle, tow pintle extender kit
• Chapter 16: Shock Absorbers — Shock absorber, mount, and pin
• Chapter 17: Hull — Track covers, power plant access panels, armor plates, hull access covers, drain plugs, floor plates, air ventilators, smoke grenade launcher guards, power plant grille and doors, cargo and mortar hatches, commander’s cupola components
• Chapter 18: Hull Accessory Items — Tent clamps and mounts, blackout curtains, bilge pumps and pipes, stencils, dataplates and decals
• Chapter 19: Hydraulic System — Ramp hydraulic pump, ramp cylinder, wire rope and pulleys, ramp control valve, hydraulic reservoir
• Chapter 20: Tools and Test Equipment — Power plant sling inspection
• Chapter 21: Auxiliary Generator — 4.2 kW generator set enclosure, 5.0 kW auxiliary power unit
• Chapter 22: Special Purpose Kits — Personnel heater components, coolant heater components, fuel lines and fittings, driver’s windshield, litter kit, smoke generator components, NBC air purifiers and heaters
• Chapter 23: Mortar Fire Control System (M1064A3) — Commander’s interface bracket, power distribution assembly, cable hanger, cables, GPS receiver, driver’s display, vehicle motion sensor, travel lock adapter
• Chapter 24: Electrical Equipment (M1068A3 Only) — APIU rack, equipment rack brackets, AC power extension boxes, signal patch panel, external communication box, data panels, LAN ground box, power control enclosure, power distribution box, power entry box, tent interface panel, inverters, cables and harnesses
• Chapter 25: Gauges — Speedometer and tachometer cable service, speedometer replacement, tachometer replacement, adapters, and cable repair
• Chapter 27: Precision Instruments and Systems — Driver’s Vision Enhancer (DVE) components, MSD/ICE pulse tachometer, shunt, distribution box, crew and engine wiring harnesses
• Chapter 28: Communication System (M58 Only) — Intercommunications set control, antenna, intercom amplifier, radio rack, intercommunication cables
• Chapter 29: Fire Fighting Equipment — Portable and fixed fire extinguisher mounts and cylinders, discharge tubes, external handle shields, control valves
• Chapter 30: Nuclear, Biological, and Chemical (NBC) Equipment — NBC air purifier, hose assemblies, orifice connectors, cable assemblies, chemical agent automatic alarm kit, junction box, alarm cables, and wiring harnesses
• Chapter 31: Unit Supporting Information — References, Maintenance Allocation Chart (MAC), common tools and special tools lists, expendable/durable supplies, electrical wiring diagrams

This M113A3 family carriers unit maintenance manual TM 9-2350-277-20-1 organizes maintenance work into clearly defined Work Packages (WPs), each covering a specific task or procedure. The manual begins with introductory information and theory of operation so you understand how each system works before you service it, then moves into troubleshooting procedures organized by symptom, followed by detailed unit maintenance instructions grouped by vehicle system. The troubleshooting chapters alone span thousands of possible fault conditions across the engine, electrical, transmission, steering, ramp hydraulic, heater, and M1068A3 electrical equipment systems. The maintenance chapters cover removal, installation, repair, adjustment, and replacement procedures for components ranging from simple fuel filters to complete engine and transmission assemblies. Wiring diagrams and schematics are included for each carrier variant, and the reference sections provide the maintenance allocation chart, tool lists, and supply information you need to complete each job correctly.

IMAGES PREVIEW

What This Manual Enables You To Do

With this M113A3 unit maintenance manual on hand, you can diagnose and repair the full range of systems across all six covered carrier variants. The troubleshooting chapters follow a logical symptom-based approach, walking you through test procedures, measurements, and component checks to isolate faults quickly. The maintenance chapters give you step-by-step procedures for removing and installing major assemblies like the power plant, transmission, final drives, and suspension components. You get access to the same repair and adjustment procedures used by unit-level maintainers, including torque values, service limits, and diagnostic test sequences. For M1068A3 SICPS carriers, the manual goes deep into the electrical equipment and power distribution systems that support the command post mission. For M1064A3 mortar carriers, the Mortar Fire Control System chapter covers the interface brackets, cables, displays, and sensors that make the 120-mm mortar system work. The M58 communication system chapter covers the intercom and radio equipment unique to the smoke obscurant carrier. Every procedure is presented in the standardized Work Package format with initial setup requirements, required tools and materials, step-by-step instructions, and follow-through checks to verify the job is done right.

Your M113A3 Family Carriers Unit Maintenance Manual TM 9-2350-277-20-1 — Instant PDF Download

This M113A3 family carriers unit maintenance manual TM 9-2350-277-20-1 arrives as an instant PDF download after purchase, with no shipping delays and no waiting for a physical book. You can access it on any device — desktop, laptop, tablet, or smartphone — and print the pages you need for the shop floor. Keep the complete manual on hand for reference during every maintenance task, from routine PMCS checks to complex troubleshooting and component replacement. Having the correct procedures and specifications at your fingertips helps you avoid costly mistakes, reduces vehicle downtime, and ensures the job is done to the standard the Army expects.