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Chapter 1 - Introduction to the engineman rating

Navy enlisted classification codes
Sources of information
Rate Training Manuals
NAVSEA publications
Ships' maintenance and material management (3-M) Systems
Maintenance Data System (MDS)
Health programs

Chapter 2 - Reciprocating internal-combustion engine

Mechanical cycles
2-Stroke Cycle Diesel Engine
Comparison of 2-Stroke and 4-Stroke Cycle Diesel Engines
Gasoline Engines
Methods of Ignition
Otto (Constant-Volume) Cycle
Actual Combustion Cycles
Classification of engines according to the action of pressure on pistons
Single-acting engines
Opposed-piston engines

Chapter 3 - Principal stationary parts of an engine

Engine frames
End plates
Access openings and covers
Cylinder assemblies
Cylinder liners
Water-Jacket Liners
Cylinder heads
Cylinder head studs and gaskets
Engine mountings
Vibration Isolators
Shock Absorbers

Chapter 4 - Principal moving and related components

Valve-actuating mechanisms
Valve Springs
Valve Spring Retainers
Cam Followers and Lash Adjusters
Rocker Arms and Pushrods
Principal moving components
Trunk-Type Pistons
Crosshead Pistons
Piston rings
Compression Rings
Oil Rings
Piston Rings and piston bearings
Types of Piston Pins
Types of Piston Pin Bearings
Connecting rods
Conventional Rods
Fork and Blade (Plain) Connecting Rods
Connecting Rod Bolts
Crankshaft Terminology
Crankshaft and lubrication
Crankshaft throw arrangements
Friction bearings
Jacking gears

Chapter 5 - Engine drive mechanisms

Drive mechanisms for a 2-stroke cycle, in-line diesel engine
Drive mechanisms for a 2-strokc cycle, V-type diesel engine
Drive mechanisms of an opposed-piston engine
Camshaft drive-actuating gear
Blower drive mechanism
Drive mechanisms in a 4-stroke cycle diesel engine
Scavenging and supercharging
Four-Stroke Cycle Scavenging and Supercharging
Two-Stroke Cycle Scavenging and Supercharging
Intake system components
Intake Air Passages
Cylinder Ports and Valves
Exhaust system
Exhaust pyrometers
Parts of other systems related to engine intake and exhaust systems

Chapter 7 - Engine cooling systems

Maintaining adequate lubrication
Maintaining clearances
The open cooling systems
Keel Cooling System
Principal components of a closed cooling system
Types of Coolers
Strut-tube coolers
Plate-tube coolers
Location of Coolers
Engine water passages
Cylinder heads
Freshwater (expansion) tanks
Manually operated throttling valve
Thermostatically operated bypass valves
Conventional Thermostatic Valves
Automatic Regulating Valves
Water and chemical requirements of a cooling system
Sodium Chromate-Disodium Phosphate (Chromate)
Inhibited Antifreeze (MIL-A-46153)

Chapter 8 - Engine lubricating oil systems

Theory of lubrication
Fluid lubrication
Factors affecting lubrication
Classification of lubricating greases
Grease lubrication systems
Ball and roller bearing lubrication
Classification of lubricating oils
Functions of lubricating oil in an engine
Sludge Control
Lubricating oil systems
Edge-wound metal ribbon strainer
Full-flow lubricating oil system
General motors series 71 diesel engine
Caterpillar diesel engine
Ventilation of internal spaces
Overheated lubricating oil
Lube Oil Quality Management Program
Shipboard testing of diesel engine lube oil
Environmental pollution control

Chapter 9 - Diesel fuel systems and engine control devices

Diesel engine fuel requirements
Volatility and engine operation
Turbulence and combustion in diesel engines
Precombustion and turbulence
Naval distillate diesel fuel
Fuel systems
Centrifugal purifiers
Principles of operation
Types of centrifugal purifiers
Tubular-Type Purifier
Fuel injection systems
Creating Pressure
Fuel injection equipment
General operating principles
Pumping principle
Distributor fuel injection system
Injection Nozzles
Pintle nozzle
Multiple-hole nozzle
Design and Components
Purging the diesel engine fuel injection system
Control devices in a diesel engine
Classification of Governors
Mechanical governor
Hydraulic governor
Overspeed safety devices
Overspeed Governors and Trips
Basic Care of the Governor
Propulsion control systems

Chapter 10 - Engine starting systems

Electric starting systems
Starting motors and drives
Dyer Drive Mechanism
Sprag Overrunning Clutch Drive
Hydraulic starting systems
Air starting systems
Air starting motor systems
Compressed air admission system
Cold weather starting aids
Ether primers

Chapter 11 - Diesel engine operating practices

Engine operational procedures (EOPs)
Inspection and maintenance
Symptoms of engine trouble
Instrument Indicators
Electrical ignition and lighting systems
Protection of Circuits
Operating instructions for diesel engines
After Routine Securing
After a Brief Period of Idleness
Normal operating procedures
Pressures and Temperatures
Stopping and Securing Procedures
Precautions in diesel engine operation
Emergency diesel generators
Operating Instructions
Factors influencing engineering casualty control
Correction and prevention of casualties
Split-plant operation
Locking main shaft
General safety precautions

Chapter 12 - Transmission of engine power

Indirect drives
Speed and gear ratio
Electric Drives
Clutches, reverse gears, and recuction gears
Friction clutches and gear assemblies
Twin-disk clutch and gear mechanism (Mechanical)
Operation of the twin-disk transmission
Mechanical Clutch Problems
Hydraulic clutch and gear mechanism (transmission)
Neutral Operation
Reverse Operation
General Maintenance Procedures
Airflex clutch and gear assembly
Forward Rotation
Airflex Clutch Control Mechanism
Hydraulic clutch (coupling)
Hydraulic Coupling Assemblies
Principles of Operation
Hydraulic Coupling Problems
Induction couplings
Main reduction gear bearings
Main Propultion Shaft Bearings
Stern Tubes and Stern Tube Bearings
Inflatable Sealing Ring
Controllable pitch propellers
Engineers Bell Book

Chapter 13 - Pumps and valves

Rotary pump
Helical gear pump
Lobe pump
Operating Troubles
Centrifugal pumps
Classification of Centrifugal Pumps
Construction of Centrifugal Pumps
Operating Troubles
Maintenance of Centrifugal Pumps
Variable-stroke pumps
Variable-Stroke Axial-Piston Pump
Variable-Stroke Radial-Piston Pump
Jet pump (Eductors)
Pump care and operation
Stop valves
Butterfly Valves
Check valves
Special-purpose valves
Spring-loaded reducing valve
Internal pilot-actuated pressure-reducing valve
Pneumatic-pressure controlled reducing valves
Air-Pilot-Operated Diaphragm Control Valves
Remote-operated valves
Mechanical steam traps
Thermostatic steam traps
Impulse Steam Traps
Bimetallic Steam Traps
Orifice-type steam traps
Packing and gasket materials
Flange safety shields

Chapter 14 - Compressed air systems

Classification and design
Sources of power
Compressing elements
Operating cycle
Components and systems
Lubrication Systems
Cooling Systems
Control Systems
Unloading Systems
oil-free, low-pressure  air compressor
Helical Screw Compressor
Centrifugal Compressors
Compressed air receivers
Compressed air supply systems
Prairie-masker air system
Refrigeration Type of Air Dehydrator (Type I)
Desiccant Type of Air Dehydrator (Type II)
Compressed air plant operation and maintenance

Chapter 15 - Distilling plants

Common terms
Types of distilling plants
Heat recovery distilling plants
Design and Components
Brine eductor
Three-way solenoid valve
Theory of Operation
Operational Procedures
Flash-type distilling plant
Vapor circuit
Heating steam circuit
Operating Notes for Flash-Type Units
Distilling plant carryover and salinity
Salinity monitoring
Chemical test for chloride
Brine density of submerged tube distilling units

Chapter 16 - Refrigeration

Fundamentals of refrigeration
Sensible Heat and Latent Heat
Pressure, temperature, and volume
Mechanical refrigeration systems
Main components of an R-12 refrigeration system
Mechanical refrigeration systems
Main components of an R-12 refrigeration system
Thermostatic expansion valve (TXV)
Capacity Control System
Power element
Accessories of an R-12 refrigeration system
Solenoid valve and thermostatic control switch
Evaporator pressure regulating (EPR) valve
Low-pressure cutout switch
Water failure switch
Suction strainer
Spring-loaded relief valve
Pressure gauges and thermometers
Refrigerant piping
Operating procedures for an R-12 system
Characteristics of refrigerants
Handling refrigerant cylinder (bottles)
Air conditioning
Relative Humidity
Heat of air
Relationships Between Temperatures
Body heat balance
Effects of air motion
Effects of heat stress
Eentilation equipment
Vane-axial fans
Waterproof ventilator
Mechanical cooling equipment
Fan-Coil Unit Coolers
Self-contained air conditioners
Maintenance of ventilation equipment

Chapter 18 - Additional auxiliary equipment

Electrohydraulic steering gear
Principles of Operation
Weight-handling equipment
Electrohydraulic winches
Maintenance of Winches and Capstans
Classification and design
Galley and laundry equipment
Gallery and scullery equipment
Descaling Dishwashers
Laundry equipment
Types of boilers
Oil burners
Boiler controls
Safety combustion controls
Operating and maintenance of auxiliary boilers
Firemain system and isolation valves

Appendix 1 - Glossary

Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix 1 - Glossary
Appendix II - References

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