99616-25000,S6S-Y3T61HF,Y3T62HF.book (EN)

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99616-25000 99616-25000 for HYUNDAI HEAVY INDUSTRIES CO.,LTD. Pub. No. August 2008 SERVICE MANUAL SERVICE MANUAL 99616-25000 August 2008 for HYUNDAI HEAVY INDUSTRIES CO.,LTD. Pub. No. Printed in Japan Pub. No.

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INTRODUCTION

INTRODUCTION This service manual describes the specifications, maintenance and service procedures for Mitsubishi diesel engines. To maintain the performance of the engine for many years and to ensure safe operation, it is important to use the engine correctly and conduct regular inspection and maintenance, and also to take necessary measures which involves the disassembly, inspection, repair and reassembly of the engine and engine parts. Read this manual carefully and understand the work procedures fully before disassembling, inspecting, repairing or reassembling the engine. The contents of the manual are based on the engine models that are being produced at the time of publication.

Due to improvements made thereafter, the actual engine that you work on may differ partially from the one described in this manual. Pub.No. 99616-25000

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Methods of presentation

INTRODUCTION How to use this manual This service manual consists of several Groups, which are arranged so as to allow you to make reference quickly to specifications, maintenance standards, adjustment procedures and service procedures including methods for disassembly, inspection, repair and reassembly of the Mitsubishi Diesel Engine (standard model for land use). A short summary describing the content of each Group is given in the General Contents page, and there is also a detailed table of contents at the beginning of each Group. Regarding the procedures for operation and periodical maintenance of the engine, refer to the Operation and Maintenance Manual.

For information on the engine components and ordering of service parts, refer to the Parts Catalogue. Structure and function of the engine are described in the relevant training manuals. Methods of presentation (1) Index numbers allotted to parts in exploded views are not only a call-out of part names listed in the text but also an indi- cation of the sequence of disassembly. (2) Inspections to be conducted during disassembly process are indicated in boxes in the relevant exploded views. (3) Maintenance standards required for inspection and repair works are indicated in the appropriate positions in the text. They are also collectively indicated in Group 2, the General Contents group.

(4) Fasteners to be tightened in “wet” condition, or with engine oil applied, are identified by [Wet] placed after tightening torque values. If no such indication is suffixed, the fastener should be tightened in “dry” condition, or without lubricating with engine oil. (5) In this manual, important safety or other cautionary instructions are emphasized with the following marks headed. DANGER Indicates an immediately hazardous situation which, if not avoided, will result in death or serious injury. WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION Indicates an immediately hazardous situation which, if not avoided, may result in minor or moderate injury. CAUTION Indicates a potentially hazardous situation which, if not avoided, can result in property damage. Emphasizes important matter, or indicates information useful for operation or maintenance of the engine. Note: I

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Units of measurement

INTRODUCTION Terms used in this manual Nominal means the rated (design) size or magnitude of a part to be measured. Standard means the quantitative requirement for dimension of a part, clearance between parts and performance. This is given in a form of tolerance. Therefore, the values shown are not in agreement with the design values. Limit means that, if this value is reached, the part must be repaired or replaced with a new part. Abbreviations BTDC: Before Top Dead Center ATDC: After Top Dead Center BBDC: Before Bottom Dead Center ABDC: After Bottom Dead Center TIR: Total Indicated Runout API: American Petroleum Institute ASTM: American Society for Testing and Materials JIS:

Japanese Industrial Standards LLC: Long Life Coolant MIL: Military Specifications and Standards (U.S.A.) MSDS: Material Safety Data Sheet SAE: Society of Automotive Engineers (U.S.A.) Units of measurement Measurements are based on the International System of Units (SI), and their converted metric values are indicated in parentheses {}. For metric conversion, the following rates are used. Pressure: 1 MPa = 10.197 kgf/cmІ Torque: 1 N·m = 0.10197 kgf·m Force: 1 N = 0.10197 kgf Horsepower: 1 kW = 1.341 HP = 1.3596 PS Meter of mercury: 1 kPa = 0.7 cmHg Meter of water: 1 kPa = 10.197 cmH 2 O (cmAq) Rotational speed: 1min -1 = 1 rpm II

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