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L23/30DF
Man L23/30DF User Manual
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Dismantling height
Figure 1: Dismantling height.
Description
H1 (mm)
H2 (mm)
Normal dismantling:
Cylinder unit
Low dismantlig:
Cover and liner separate
4201
3891
4791
–
H
1
H
2
:
:
For dismantling at the service side.
For dismantlig passing the alternator.
(with standard alternator, remaining
cover not
removed.)
MAN Diesel & Turbo
1665770-6.6
Page 1 (4)
Overhaul areas
B 10 01 1
L27/38S, L27/38
2015.11.27
76
78
Table of Contents
Table of Contents
3
I 00 Introduction
9
Introduction to Project Guide
12
Key for Engine Designation
13
Designation of Cylinders
15
Code Identification for Instruments
17
Symbols for Piping
21
D 10 General Information
31
Vibration Limits and Measurements
37
Description of Sound Measurements
39
Description of Structure-Borne Noise
41
Exhaust Gas Components
44
Emission Limits Worldbank II
45
Moment of Inertia
47
Green Passport
49
Overhaul Recommendation, Maintenance and Expected Life Time
51
Overhaul Recommendation, Maintenance and Expected Life Time
52
Overhaul Recommendation, Maintenance and Expected Life Time
53
Overhaul Recommendation, Maintenance and Expected Life Time
54
B 10 Basic Diesel Engine
59
General Description
62
Cross Section
69
Main Particulars
71
Dimensions and Weights
73
Centre of Gravity
75
Overhaul Areas
77
Firing Pressure Comparison
81
Engine Rotation Clockwise
83
B 11 Fuel Oil System
85
Internal Fuel Oil System
87
Part-Load Optimisation - PLO
89
Heavy Fuel Oil (HFO) Specification
91
Bio Fuel Specification
109
Explanatory Notes for Biofuel
111
Crude Oil Specification
113
Viscosity-Temperature Diagram (VT Diagram)
115
Guidelines Regarding man Diesel & Turbo Gensets Operating on Low Sulphur
117
Calculation of Specific Fuel Oil Consumption (SFOC
119
Fuel Oil Consumption for Emissions Standard
123
Fuel Injection Valve
125
Fuel Injection Pump
127
Fuel Oil Filter Duplex
129
MDO / MGO Cooler
131
HFO/MDO Changing Valves (V1 and V2)
135
B 12 Lubricating Oil System
137
Internal Lubricating Oil System
140
Crankcase Ventilation
144
Prelubricating Pump
145
Criteria for Cleaning/Exchange of Lubricating Oil
171
B 13 Cooling Water System
173
Specification of Engine Coolant
174
Coolants Inspecting
181
Quality of Raw-Water in Cooling Tower Operation
187
Quality of Water Used in Exhaust Gas Boiler Plants
189
Internal Cooling Water System
195
Internal Cooling Water System
196
Design Data for the External Cooling Water System
197
Two String Central Cooling Water System
199
Expansion Tank
201
Preheater Arrangement in High Temperature System
203
Expansion Tank Pressurized
206
B 14 Compressed Air System
207
Compressed Air System
211
Compressed Air System
212
B 15 Combustion Air System
217
Combustion Air System
219
Specifications for Intake Air (Combustion Air)
221
Engine Room Ventilation and Combustion Air
223
Water Washing of Turbocharger - Compressor
225
B 16 Exhaust Gas System
227
Exhaust Gas System
232
Pressure Droop in Exhaust Gas System
233
SCR (Selective Catalytic Reduction
235
Equipment to Optimize Performance
253
Exhaust Gas Velocity
257
Cleaning the Turbocharger in Service - Turbine Side
261
Position of Gas Outlet on Turbocharger
267
B 17 Speed Control System
269
Starting of Engine
271
Power Management - Alternator Protection
273
Engine Operation under Arctic Conditions
279
Actuators
281
Actuators
283
Actuators
285
B 19 Safety and Control System
287
Table of Contents
295
1 General Information
296
Control Unit
296
Connection Box
297
System Bus
298
Technical Data
299
2 System Description
300
Safety System
300
Alarm/Monitoring System
301
Speed Control System
301
3 Interfaces to External Systems
303
Overview
303
Data Machinery Interface
304
Generator Control
304
Power Management
304
Remote Control
304
Ethernet Interface
304
Serial Interface
304
Power Supply
304
Crankcase Monitoring Unit (Optional)
305
Man Diesel & Turbo
308
1 Data Bus Interface (Machinery Alarm System)
310
2 Modbus RTU Protocol
311
Settings
311
Function Codes
311
Message Frame Separation
312
Provided Data
312
Contents of List of Signals
312
Live Bit
312
3 Modbus ASCII Protocol
313
General
313
Protocol Description
313
Data Format
315
4 Extended Operating Hour Counters Via MODBUS
317
5 Modbus List
319
4
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Man L23/30DF Specifications
General
Brand
Man
Model
L23/30DF
Category
Portable Generator
Language
English
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