Name: Mitsubishi S12R
Brand: Mitsubishi
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2 ENGINE - OUTLINE

Mitsubishi Diesel Engine S12R OPERATION & MAINTENANCE MANUAL

Pub. No. 291Y1-40720 Revision: 5

Starting and Stopping Devices Installed during Manufacturing the

Generator

Compile the information about the starting and stopping devices as well as operation panels installed during

manufacturing the generator and attach it below.

Also ensure that their locations and function are instructed to, and understand by the operators in addition to the

details of the "Safety Manual".

Please compile the information

about the starting and stopping

devices as well as operation panels

installed during manufacturing the

generator and attach it on this page.

Foreword3
- General4
- Important Information4
- Intended Purpose and Use4
- General5
- Important Tips for Safety of Work5
- To the User Company5
- About this Manual6
- Fig6
- Fig. 2 Attaching Location of Emission Control Fig6
- Important Tips for Managing Safety of Work6
- Warranty Provisions7
- Emission Warranty8
- Fig8
- Fig. 1-12 Measures in the Event of Fig8
- Contact List10
- Approved Label11
- Emission Control Approved Label11
- Fig. 1 Location of Nameplate11
- Model Name11
- Main Specifications12
- Specifications - Check12
- Table 1 Main Specifications12
- Detailed Specifications13
- Specifications of Engine Body13
- Additional Equipment of Generator14
- Protection Devices Added During Manufacturing the Generator15
- Definition of Intended Persons16
- Fig. 1 Structure of Service Documents17
- Structure of Service Documents17
- Table of Contents18
- Structure of this Manual18
  - List of Models19
  - Warning/Caution Labels29
- Abbreviations and Standards20
- Unit of Measurement20
- General Information28
- Safety28
- Types and Meanings of Warning Terms28
- Warnings28
Engine - Outline75
- Names of Parts75
- S12R-Y1Pta, S12R-Y1Pta-2, S12R-Y1Pta-3, S12R-Y1Pta-476
- S12R-Y1Pta2-1, S12R-Y1Pta2-278
- S12R-Y2Ptaw, S12R-Y2Ptaw-180
- Protection System - Location82
- S12R-Y1Pta, S12R-Y1Pta-2, S12R-Y1Pta-3, S12R-Y1Pta-483
- S12R-Y1Pta2-1, S12R-Y1Pta2-284
- S12R-Y2Ptaw, S12R-Y2Ptaw-185
- Starting and Stopping Devices Installed During Manufacturing the Generator86
Operation87
- Operation - Outline87
- Air Direct Admission Starting - Check94
- Fig. 3-2 Manual Turning Gear - Check94
- Manual Turning Gear - Check94
- Air Motor Starting - Check95
- Air Direct Admission Starting96
- Engine Start-Up96
- Self Starter Motor Starting96
- Air Motor Starting97
- Fig. 3-3 Air Motor Muffler97
- Warm-Up Operation98
- Operation99
- Checking During Operation100
- Cooling Operation101
Fuel103
- (Emission Control Approved Model)103
- Diesel Fuel103
- Diesel Fuel104
- Fig. 4-1 ULSD Label104
- Table 4-1 Fuel Properties Table (Emission Control Approved Model)104
- Table 4-2 Fuel Properties Limit Table104
- Table 4-3 Fuel Specifications104
- Fuel - Handling105
- Fuel - Refill105
- Fuel Quality Standard106
Table 4-4 Fuel Properties Table (1/2)106
Table 4-5 Fuel Properties Table (2/2)107
Engine Oil109
- Engine Oil Grade109
- Fig. 5-1 MITSUBISHI DIESEL ENGINE OIL109
- Engine Oil Viscosity110
- Handling Engine Oil110
- Viscosity110
Coolant111
- Table 6-1 Water Quality Standard111
- Water to be Used111
- Coolant (LLC) - Handling112
- LLC to be Used112
- Coolant - MIX113
- LLC Concentration (Genuine LLC)113
- LLC Concentration in Coolant - Check113
- Maintenance of LLC113
- Replacement Period113
Table 6-3 Scale Conversion Table116
Scheduled Maintenance117
- How to Use the Scheduled Maintenance117
- Category of Scheduled Maintenance Chart118
- Rating Definition119
- Table 7-1 MHIET Generator Use Diesel Engine Rating Definition (1/2)119
- Table 7-2 MHIET Generator Use Diesel Engine Rating Definition (2/2)120
- Scheduled Maintenance for EPA Compliant Generator Use Diesel Engine121
Table 7-3 Maintenance Schedule (1/2)121
Table 7-4 Maintenance Schedule (2/2)122
Inspection and Maintenance123
- Inspection and Maintenance - General Information123
- Belt Cover - Remove128
- Belt Tension (Alternator) - Adjust128
- Belt Tension - Adjust (Lock Nut)128
- Belt Tension - Adjust (Retaining Bolt)128
- Belt Tension - Adjust (Turn Buckle)128
- Belt Cover - Install129
- Belt Tension - Adjust (Lock Nut)129
- Belt Tension - Adjust (Retaining Bolt)129
- Front Cover - Install129
Long-Term Storage171
10 Transportation175
11 Troubleshooting178
Table 11-1 Starter Does Not Crank or Cranks Slowly, Resulting in Starting Failure180
Table 11-2 Starter Cranks, but Engine Does Not Start181
Table 11-3 Output Shortage (1/2)182
Table 11-4 Output Shortage (2/2)183
Table 11-5 Exhaust Smoke Is White or Blue184
Table 11-6 Exhaust Smoke Is Black or Dark Grey185
Table 11-7 Exhaust Smoke Is Black or Dark Grey (2/2)186
Table 11-8 Excessive Fuel Consumption187
Table 11-9 Excessive Engine Oil Consumption188
Table 11-10 Overheating189
Table 11-11 Engine Oil Pressure Drop190
Table 11-12 Engine Stops191
Table 11-13 During Normal Operation, Thermo Switch Activated192
13 Disposal194
Table 14-1 Engine Oil Quality Standards (Grade CF SAE 30)198
Table 14-2 Engine Oil Quality Standards (Grade CF SAE 15W-40)199
Table 14-3 Engine Oil Quality Standards (Grade CH-4 SAE 15W-40)200
Table 14-4 Engine Oil Properties202
Table 14-5 Engine Oil Service Limits for Emergency Use203
Table 14-6 LLC Specifications (1/3)205
Table 14-7 LLC Specifications (2/3)206
Table 14-8 LLC Specifications (3/3)207

Mitsubishi S12R Service Manual

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Mitsubishi S12R Specifications

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Brand	Mitsubishi
Model	S12R
Category	Engine
Language	English