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Ingersoll-Rand 4IRH8N User Manual

Ingersoll-Rand 4IRH8N
159 pages
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1
Ingersoll-Rand Engine
Workshop Manual
Model Series
3IRH2N 3IRH8N
4IRH8N 4IRI8N
4IRI8T
Ingersoll-Rand
Portable Power
P.O. Box 868 – 501 Sanford Ave
Mocksville, N.C. 27028 P/N 22333660 (8/03)
Revised (10-12)
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 C
ompany and Doosan
Company or the products of
e
ith
er.

Table of Contents

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Ingersoll-Rand 4IRH8N Specifications

General IconGeneral
BrandIngersoll-Rand
Model4IRH8N
CategoryEngine
LanguageEnglish

Summary

Safety Precautions

1. Service Area

Covers ventilation, work area, illumination, and safety equipment requirements.

Precautions for Service Work

1. Precautions for Safety

Advises careful reading of safety precautions before starting service work.

4. Precautions in Disassembly

Details checks and organization of parts during disassembly for proper reassembly.

6. Precautions for Reassembly

Covers correct reassembly procedures, part usage, and standards.

2. Inspection and Adjustment

2.1 Periodic Maintenance Schedule

Presents a schedule for periodic inspections and parts replacement.

2.2 Periodic Inspection and Maintenance Procedure

Details periodic inspection and maintenance procedures.

2.2.1 Check before Daily Operation

Lists daily checks required before starting the engine.

2.2.2 inspection after initial 50 hours operation

Outlines inspections after initial 50 hours and subsequent periodic checks.

2.2.3 Inspection every 50 hours

Lists inspection items to be performed every 50 hours of operation.

2.2.4 Inspection every 250 hours or 3 months

Lists inspections for every 250 hours or 3 months, whichever comes first.

2.2.5 Inspection every 500 hours or 6 months

Lists inspections for every 500 hours or 6 months, whichever comes first.

2.2.6 Inspection every 1,000 hours or one year

Lists inspections for every 1,000 hours or one year, whichever comes first.

(3) Inspection and adjustment: Injection Pressure and Spray Pattern of Fuel Injection Valve

Covers inspection and adjustment of injection pressure and spray pattern.

(4) Measuring and adjusting Valve Clearance

Details measuring and adjusting valve clearance when the engine is cold.

(b) Valve clearance inspection and adjustment

Explains how to loosen adjusting bolts and check valve clearance.

2.2.7 Inspection every 2,000 hours or 2 years

Lists inspections for every 2,000 hours or 2 years, whichever comes first.

(4) Fuel injection timing inspection and adjustment

Details inspection and adjustment of fuel injection timing for optimal performance.

2.3 Adjusting the no-load maximum or minimum speed

Explains how to adjust engine speed settings at no-load conditions.

3. TROUBLESHOOTING

3.1 Preparation before troubleshooting

Guides on gathering information and preparing for troubleshooting.

3.2 Quick Reference Table for Troubleshooting

Summarizes common trouble symptoms, causes, and corrective actions.

3.3 Troubleshooting by measuring Compression Pressure

Explains how to measure compression pressure for diagnosing engine issues.

4. Disassembly, Inspection and Reassembly of Engines

4.1 Complete disassembly and reassembly

Provides an introduction to the process of complete engine disassembly and reassembly.

4.1.3 Complete disassembly

Details the step-by-step procedure for complete engine disassembly.

4.1.4 Precautions before and during reassembly

Highlights precautions for component cleaning and parts replacement during reassembly.

4.2 Cylinder Head: Disassembly, Inspection and Reassembly

Covers the disassembly, inspection, and reassembly of the cylinder head.

4.2.2Disassembly procedure:

Provides the step-by-step disassembly procedure for the cylinder head.

4.2.3Reassembly procedure:

Outlines the reassembly procedure, reversing the disassembly steps.

4.2.5 Parts Inspection and measurement

Details inspection and measurement procedures for cylinder head components.

Valve stem clearance

Provides standard and limit values for valve stem clearance.

4.2.6 Valve seat correction

Details procedures for correcting valve seats based on their condition.

4.2.7 Valve guide replacement

Explains the process of replacing valve guides using special tools.

4.2.8 Valve stem seal replacement

Covers the procedure for replacing valve stem seals with new ones.

4.3 Gear Train and Camshaft

Covers the disassembly, inspection, and reassembly of the gear train and camshaft.

4.3.2 Disassembly procedure:

Provides the step-by-step procedure for disassembling the gear train and camshaft.

4.3.3 Reassembly procedure:

Outlines the reassembly procedure, reversing the disassembly steps.

4.3.5 Parts inspection and measurement

Details inspection and measurement of camshaft and related parts.

4.3.6 Oil seal replacement

Details the procedure for replacing oil seals in the gear case.

4.3.7 Camshaft bushing replacement

Explains replacing camshaft bushings using special service tools.

4.4 Cylinder Block

Covers the disassembly, inspection, and reassembly of the cylinder block.

4.4.2 Disassembly procedure:

Provides the step-by-step procedure for disassembling the cylinder block.

4.4.3 Reassembly procedure:

Outlines the reassembly procedure, reversing the disassembly steps.

4.4.6 Cylinder bore correction

Details procedures for cylinder bore correction using honing or boring.

4.4.7 Piston pin bushing replacement

Explains replacing piston pin bushings using special service tools.

4.4.8 Oil seal replacement

Covers the procedure for replacing oil seals when the mounting flange is removed.

5. LUBRICATION SYSTEM

5.3 Disassembly(Reverse the procedure below for assembly)

Details the step-by-step procedure for disassembling the lubricating oil pump.

5.5 Parts Inspection and Measurement

Details inspection and measurement of trochoid pump components.

5.5.1 Trochoid pump inspection and measurement

Covers inspection and measurement of trochoid pump clearances.

6. COOLING SYSTEM

6.3 Disassembly (Reverse the procedure below for assembly)

Details the step-by-step procedure for disassembling the cooling water pump.

7. FUEL INJECTION PUMP/GOVERNOR

7.2.3Disassembly procedure:

Details the step-by-step procedure for disassembling the fuel injection pump.

7.2.4 Assembly procedure

Outlines the reassembly procedure, reversing the disassembly steps.

8. TURBOCHAGER: Disassembly, inspection and reassembly

8.1 Structure and Functions

Covers the structure, functions, and main specifications of the turbocharger.

8.2 Service Standards and Tightening Torque

Provides service standards and tightening torques for turbocharger components.

8.2.1 Service standards

Details standard dimensions and wear limits for turbocharger parts.

8.2.2 Tightening torque

Lists tightening torques for various bolts and nuts used in turbocharger assembly.

8.8 Troubleshooting

Provides troubleshooting steps for common turbocharger faults.

9. SERVICE STANDARDS

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