Mitsubishi S12U Operation & Maintenance Manual page 10

CONTENTS
Chapter 2
NAME OF PARTS
Engine External Diagrams...................2-1
S12U Left View ................................................ 2-1
S12U Right View .............................................. 2-1
S16U Left View ................................................ 2-2
S16U Right View ............................................. 2-2
Equipment and Instrument ..................2-3
Starting and Shutdown Devices ....................... 2-3
Start Switch ............................................................. 2-3
Stop Switch ............................................................. 2-3
Start Lever ................................................................ 2-3
Manual Stop Lever.................................................... 2-3
Instruments..........................................2-4
Tachometer............................................................... 2-4
Hour Meter................................................................ 2-4
Oil Pressure Gage .................................................... 2-4
Oil Temperature Gage .............................................. 2-4
Jacket Coolant Temperature Gage........................... 2-4
Oil Cooler Coolant Temperature Gage ..................... 2-4
Air Cooler Coolant Temperature Gage ..................... 2-4
Jacket Coolant Pressure Gage................................. 2-4
Oil Cooler Coolant Pressure Gage ........................... 2-4
Air Cooler Coolant Pressure Gage ........................... 2-4
Exhaust Temperature Gage ..................................... 2-4
Fuel Pressure Gage.................................................. 2-4
Inlet Pressure Gage.................................................. 2-4
Engine Protection Devices ..................2-5
Low Oil Pressure Alarm ............................................ 2-5
High Coolant Temperature Alarm ............................. 2-5
Oil Filter Clog Alarm.................................................. 2-5
Overspeed Alarm...................................................... 2-5
Using Turning Gear .............................2-6
Chapter 3
OPERATION
Preparation for Operation of New or
Overhauled Engine..............................3-1
Fuel System ..................................................... 3-1
Pouring fuel............................................................... 3-1
Bleeding Fuel System............................................... 3-2
Bleeding Air from Fuel Filters
(Wire-Element Type)................................................. 3-2
Bleeding Air from Fuel Feed Pipe............................. 3-3
Lubricating System........................................... 3-4
Pouring engine oil ..................................................... 3-4
Cooling System ................................................ 3-5
Pouring coolant......................................................... 3-5
Electrical Systems............................................ 3-6
CONTENTS-2
Checking Battery.............................................. 3-6
Electrolyte level..........................................................3-6
Checking specific gravity of electrolyte......................3-6
Checking loosened wire ................................... 3-6
Checking Valves for Open/Closed Position...... 3-7
Test Operation ................................................. 3-7
Normal Engine Operation ................... 3-8
Preparations for Operation
(Pre-Start Inspection) ....................................... 3-8
External Inspection ....................................................3-8
Cleaning Fuel Filters (Wire-Element Type)................3-8
Checking Fuel Level in Tank .....................................3-9
Draining Water from Fuel Tank..................................3-9
Checking Engine Oil Level.........................................3-9
Checking Coolant Level...........................................3-10
Inspection of Air Cleaner Indicator...........................3-10
Draining Water from Air Starter Tank ......................3-11
Inspection of Air Tank Air Pressure .........................3-11
Starting.............................................. 3-12
Warming-up Operation ................................... 3-12
Inspection of Oil Pressure........................................3-12
External Inspection during Warming-up...................3-12
Operation ....................................................... 3-13
Inspection During Operation ....................................3-13
Stopping ......................................................... 3-14
Emergency Stop............................................. 3-14
Inspection After Stopping ............................... 3-14
Chapter 4
MAINTENANCE
Cautions Concerning Maintenance..... 4-1
Stop the engine before checking or adding fuel, oil or
coolant. ......................................................................4-1
Handle electrolyte carefully........................................4-1
Handle LLC carefully. ................................................4-1
Always wear protective gear......................................4-1
Use recommended fuel, engine oil and coolant.........4-1
Perform all specified pre-start inspections and periodic
inspections.................................................................4-1
Use only genuine Mitsubishi parts. ............................4-1
Fuel ..................................................... 4-2
Recommended Fuel ......................................... 4-2
Handling Fuel ................................................... 4-2
Engine Oil ........................................... 4-4
Recommended Engine Oil ............................... 4-4