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Mitsubishi S12A2 User Manual

Mitsubishi S12A2
354 pages
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SERVICE MANUAL
September 2010
Pub. No. 99269-20170
199269-20170

Table of Contents

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Mitsubishi S12A2 Specifications

General IconGeneral
BrandMitsubishi
ModelS12A2
CategoryEngine
LanguageEnglish

Summary

FOREWORD

General Safety Precautions

Covers critical safety guidelines for preventing hazards, including fire, injury from moving parts, and handling hazardous materials.

SERVICE DATA

Maintenance Service Data

Provides standard and limit values for engine general, basic engine, and system-specific maintenance parameters.

Tightening Torque Specifications

Lists specified tightening torques for various engine components and systems for proper assembly and safety.

OVERHAUL INSTRUCTIONS

DISASSEMBLY OF BASIC ENGINE

Cylinder Liner, Piston, and Connecting Rod Disassembly

Comprehensive guide for disassembling and inspecting cylinder liners, pistons, connecting rods, and related parts.

Crankcase, Crankshaft, and Main Bearing Disassembly

Steps for disassembling and inspecting the engine's crankcase, crankshaft, and main bearing components.

INSPECTION AND REPAIR OF BASIC ENGINE

Piston and Connecting Rod Inspection and Repair

Detailed inspection and repair procedures for pistons, piston rings, connecting rods, and their bearings.

Crankcase and Crankshaft Inspection and Repair

Procedures for inspecting and repairing crankcase surfaces, crankshaft journals, pins, and bearings for wear and damage.

ASSEMBLY OF BASIC ENGINE

Crankshaft and Main Bearing Installation

Instructions for installing the crankshaft, main bearings, thrust plates, and ensuring proper end play.

Cylinder Liner, Piston, and Connecting Rod Assembly

Steps for assembling cylinder liners, pistons, connecting rods, rings, and checking their clearances.

FUEL SYSTEM

Fuel System Disassembly, Inspection, and Assembly

Detailed steps for disassembling, inspecting, and reassembling fuel filters, injection nozzles, and pumps.

LUBRICATION SYSTEM

Lubrication System Disassembly, Inspection, and Assembly

Detailed steps for disassembling, inspecting, and reassembling oil strainers, oil pumps, safety valves, and oil coolers.

COOLING SYSTEM

Cooling System Disassembly, Inspection, and Assembly

Detailed steps for disassembling, inspecting, and reassembling tension pulleys, thermostats, water pumps, and heat exchangers.

INLET AND EXHAUST SYSTEMS

Inlet and Exhaust Systems Disassembly, Inspection, and Assembly

Detailed steps for disassembling, inspecting, and reassembling air coolers and pre-cleaners.

AIR START SYSTEM

ADJUSTMENT AND OPERATION

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