Hitachi Zosen MAN B&W Main Diesel Engine Instruction Manual – Volume 1 Operation

Description

Hitachi Zosen MAN B&W Main Diesel Engine Instruction Manual – Volume 1: Operation

This comprehensive instruction manual covers the operation of Hitachi Zosen-built MAN B&W two-stroke low-speed marine diesel engines. Volume I focuses on operational procedures, covering everything from safety precautions and engine data through starting, maneuvering, fuel treatment, performance evaluation, cylinder condition monitoring, bearing maintenance, and cooling systems. Whether you are a marine engineer, technical superintendent, or engine room operator, this manual provides the procedures, guidance values, and technical data needed to operate and maintain these engines correctly.

File Details

• Manual Type: Instruction Manual (Volume I, Operation)
• Brand/Manufacturer: Hitachi Zosen Corporation (MAN B&W License)
• Engine Series: MAN B&W S/L-MC (MK-6, 7)
• Language: English
• Page Count: 236 pages
• File Format: PDF

Chapters Covered

• 701 – Safety Precautions and Engine Data
• 702 – Checks during Standstill Periods
• 703 – Starting, Maneuvering and Running
• 704 – Special Running Conditions
• 705 – Fuel and Fuel Treatment
• 706 – Performance Evaluation & General Operation
• 707 – Cylinder Condition
• 708 – Bearings and Circulating Oil
• 709 – Water Cooling Systems

The manual is structured as nine chapters plus an index, each subdivided into sections and sub-sections. The opening chapter establishes safety protocols for engine room operations, including guidance on general hazards, cleanliness, fire prevention, order and tidiness, spare parts handling, lighting, low-temperature precautions, entering the crankcase or cylinder, turning gear procedures, slow-turning, feeling over, and sealing materials. It also provides guidance values, alarm limits, measuring values, and valve timing data for the engine.

What This Manual Covers

Chapter 702 details the regular checks to be performed during engine standstill periods, including oil flow verification, oil pan and bearing clearance inspection, filter examination, scavenge port inspection, exhaust receiver checks, crankshaft deflection measurements, circulating oil sampling, turbocharger inspection, and maneuvering gear checks. It also covers checks during repairs and after repairs, plus recommendations for laid-up vessels.

Chapter 703 provides comprehensive procedures for starting, maneuvering, and running the engine. It covers preparation steps for air systems, lube oil systems, cooling water systems, slow-turning, fuel oil systems, and fuel regulating gear. The chapter includes detailed starting procedures, troubleshooting tables for starting difficulties, loading sequences, running checks, feel-over sequences, running-in procedures, preparations prior to arrival in port, stopping procedures, operations after arrival in port, engine control system operation, and crash-stop procedures for fixed-pitch propeller plants.

Chapter 704 addresses special running conditions including fire in the scavenge air box, ignition in the crankcase, turbocharger surging, running with cylinders or turbocharger out of operation, and putting auxiliary blowers out of operation. The chapter includes detailed procedures for cutting cylinders out of action using five different methods, with specific load restrictions and precautions for each.

Chapter 705 covers fuel and fuel treatment, including diesel oil and heavy oil specifications, pressurized fuel oil system layout, fuel oil pressure adjustment, fuel treatment procedures including centrifuging, homogenizers, fine filters, super decanters, fuel oil stability, preheating before injection, and fuel change-over procedures between diesel and heavy fuel oil.

Chapter 706 focuses on performance evaluation and general operation, covering operating ranges, load diagrams, performance observations, key parameters, measuring instruments, evaluation of records, engine synopsis, turbocharger synopsis, air cooler synopsis, specific fuel oil consumption, cleaning of turbocharger and air cooler, drain systems for water mist catchers, indicator diagrams, pressure measurements, engine power calculations, and correction of performance parameters.

Chapter 707 covers cylinder condition, including piston ring function, scavenge port inspection, cylinder overhaul procedures, factors influencing cylinder wear, propeller performance, cylinder lubrication, lubricators, cylinder oil film, cylinder oils, and cylinder oil feed rate calculations for specified MCR and part load conditions.

Chapter 708 covers bearings and circulating oil, including bearing requirements and criteria, bearing metals, overlayers, flashlayer, bearing design, journal/pin specifications, practical information for checks without opening up, open-up inspection and overhaul, types of damage, causes of wiping, cracks, repairs, bearing wear rate, surface roughness, crosshead bearing assembly, main bearing assembly, crankpin bearing assembly, guide shoes and strips, thrust bearing assembly, camshaft bearing assembly, checks before installation, alignment of main bearings, and maintenance of circulating oil.

Chapter 709 covers water cooling systems.

Appendices cover measuring instruments, indicator diagrams, pressure measurements and engine power calculations, and correction of performance parameters to ISO reference conditions.

Key Systems and Components Covered

• Starting air system and control air system
• Lubricating oil system including Uni-Lub system
• Cooling water system (jacket water)
• Fuel oil system including heavy fuel handling
• Turbocharger operation and cleaning
• Cylinder lubrication systems (mechanical and Alpha lubricator types)
• Exhaust valve operation
• Maneuvering gear and control systems
• Safety systems for shutdown and overspeed
• Crankcase oil mist detection
• Scavenge air box fire prevention and detection
• Thrust bearing, main bearings, crankpin bearings, crosshead bearings
• Camshaft bearings and chain drive
• Piston cooling and cylinder lubrication

Applicable Engine Models

The manual covers the following MAN B&W MC engine models as built by Hitachi Zosen:

• L35MC-6
• S35MC
• L42MC-6
• S42MC
• S26MC
• S/L-MC (MK-6, 7) series

Practical Applications

This manual is designed for marine engineers, technical superintendents, engine room staff, and vessel operators responsible for the operation and maintenance of Hitachi Zosen-built MAN B&W main diesel engines. The procedures and guidance values provided enable users to operate the engine safely and efficiently, perform routine checks and maintenance, diagnose and troubleshoot operational issues, evaluate engine performance, and make informed decisions about component overhaul and replacement.

Specific procedures covered include slow-turning the engine before starting, checking fuel regulating gear, testing starting valves for leakage, inspecting scavenge ports, measuring crankshaft deflections, checking bearing clearances with feeler gauges, evaluating cylinder liner wear, calculating cylinder oil feed rates, correcting performance parameters to ISO reference conditions, and executing crash-stop maneuvers.

Why This Manual Matters

Correct operation and maintenance are crucial for obtaining optimum safety and reliability in the engine room. The guidance values, alarm limits, and measuring values provided in Chapter 701 serve as essential reference points for evaluating engine condition. The detailed procedures for starting, maneuvering, and running ensure that the engine is operated within safe limits. The troubleshooting tables for starting difficulties and running difficulties provide systematic approaches to diagnosing and resolving operational problems. The inspection and maintenance procedures help prevent costly breakdowns and extend engine service life.

This instruction manual is an indispensable resource for anyone responsible for the operation of Hitachi Zosen MAN B&W S/L-MC series marine diesel engines.

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