Table of Contents
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Doosan purchased Bobcat Company from Ingersoll-Rand Company in
2007. Any reference to Ingersoll-Rand Company or use of trademarks,
service marks, logos, or other proprietary identifying marks belonging
to Ingersoll-Rand Company in this manual is historical or nominative
in nature, and is not meant to suggest a current affiliation between
Ingersoll-Rand Company and Doosan Company or the products of
either.
Revised (10-12)
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Table of Contents
Related Manuals for Ingersoll-Rand 4IRL5N
Summarization of Contents
General Information
General Repair Instructions
Provides essential guidelines and best practices for performing service and repair operations on the engines.
Notes on Manual Format
Explains the structure, conventions, and symbols used throughout the workshop manual for clarity.
Engine Appearance Overview
Illustrates the external views of the engine models, highlighting key external features and components.
Main Data and Specifications
Presents critical technical data, dimensions, and performance specifications for the different engine models.
Tightening Torque Specifications
Details standard torque values for various bolt sizes, essential for correct assembly and preventing damage.
Angular Nut and Bolt Tightening Method
Describes the specific procedure for angular tightening of nuts and bolts, ensuring proper preload and assembly integrity.
Major Component Tightening Torques
Lists specific torque values for tightening major engine components, ensuring safe and reliable assembly.
Exhaust Manifold and Gasket Service
Covers the removal, installation, and gasket replacement procedures for the exhaust manifold system.
Gasket Location Guide
Identifies the locations of various gaskets used throughout the engine assembly for proper sealing.
Maintenance Procedures
Outlines routine maintenance tasks and schedules required to keep the engine in optimal operating condition.
Recommended Lubricating Oil
Specifies the appropriate engine oil types and viscosity grades for different ambient temperatures.
Engine Section
Engine Disassembly
Details the step-by-step process for dismantling the engine and its major external components.
Inspection and Repair Procedures
Guides on inspecting engine parts for wear or damage and outlines repair methods and specifications.
Engine Reassembly
Provides instructions for reassembling the engine after inspection and repair, ensuring correct component placement.
Lubricating System
Lubricating Oil Circulation Diagram
Illustrates the flow path of lubricating oil through the engine's internal components and systems.
Oil Pump Inspection and Service
Details the inspection, replacement, and clearance checks for the engine's oil pump.
Cooling System
Cooling Water Circulation Diagram
Presents a schematic showing the path of coolant circulation within the engine's cooling system.
Water Pump Service
Covers the disassembly, inspection, and reassembly procedures for the engine's water pump.
Thermostat Inspection and Replacement
Provides guidance on inspecting and replacing the engine thermostat for proper temperature regulation.
Fuel System
Fuel Circulation System Diagram
Illustrates the flow of fuel from the tank through the filter, injection pump, and to the nozzle.
Governor Operation and Service
Explains the governor's function, structural details, and procedures for its reassembly and adjustment.
Nozzle Holder Assembly Service
Details the disassembly, inspection, and replacement of the nozzle holder assembly and its components.
Troubleshooting Engine Issues
Engine Does Not Start Troubleshooting
Diagnostic flowchart for identifying and resolving issues preventing the engine from starting.
Unstable Engine Rotation Troubleshooting
Diagnostic flowchart for addressing problems related to inconsistent or unstable engine speed.
Insufficient Engine Output Troubleshooting
Diagnostic steps for issues resulting in reduced engine power or performance.
Engine Overheating Troubleshooting
Diagnostic flowchart for identifying and resolving engine overheating conditions.
Abnormal Exhaust Gas Troubleshooting
Guides for diagnosing issues indicated by abnormal exhaust smoke color or volume.
Battery Over-Discharge Troubleshooting
Diagnostic steps for issues related to battery discharge, including wiring and regulator checks.
Low Oil Pressure Troubleshooting
Diagnostic flowchart for addressing low engine oil pressure, covering checks from level to pump.
Excessive Oil Consumption Troubleshooting
Diagnostic steps for issues related to high engine oil consumption, including leak and quality checks.
Engine Knocking Troubleshooting
Diagnostic flowchart for identifying and resolving engine knocking or abnormal noises.
Conversion Tables
Length Conversion
Provides conversion factors and tables for length measurements between millimeters and inches.
Area Conversion
Offers conversion values for area measurements between square centimeters and square inches.
Volume Conversion
Presents conversion tables for volume, including liters to gallons and cubic inches to cubic centimeters.
Mass Conversion
Provides conversion tables for mass and weight between kilograms, pounds, and newtons.
Pressure Conversion
Details conversion factors for pressure units like psi, kgf/cm², kPa, and bar.
Torque Conversion
Offers conversion tables for torque values between Nm, kgf-m, and ft-lbs for accurate tightening.
Temperature Conversion
Provides conversion charts for temperature between Celsius and Fahrenheit scales.
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