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Mitsubishi L2E User Manual
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INTRODUCTION
This operation and maintenance manual co
ntains detailed operation, inspection
and maintenance infor
mation for engines fr
om Mitsubis
hi Heavy I
ndustries
, Ltd
.
Please read this manu
al thoroughly before
pr
oceeding with operation, inspection,
and maintenance w
ork for correct use and servicin
g.
Failure to follow dir
ections in this ma
nual may result in serious accidents.
1
3
Table of Contents
Default Chapter
3
Limited Warranty
3
Warranted Parts
4
Warranty Coverage
4
Important Information
9
Table of Contents
12
Chapter 1 BASIC SAFETY PRECAUTIONS Fire and Explosions
18
Keep Flames Away
18
Keep Engine Surrounding Area Tidy and Clean
18
Care for Fuel, Oil and Exhaust Gas Leakage
18
Use Explosion-Proof Lighting Apparatus
18
Prevent Electrical Wires from Short-Circuiting
18
Keep Fire Extinguishers and a First-Aid Kit Handy
18
Stay Clear of All Rotating and Moving Parts
19
Install Protective Covers Around Rotating Parts
19
Check Work Area for Safety
19
Stay Clear of Moving Parts While Engine Is Running
19
Lockout and Tagout
19
Keep Engine Stopped During Servicing
19
Always Restore Engine Turning Tools after Use
19
Changing the Engine Speed Setting Is Prohibited
19
Be Careful of Exhaust Fume Poisoning
20
Operate Engine in a Well-Ventilated Area
20
Be Careful of Falling down
20
Lift Engine Carefully
20
Do Not Climb Onto the Engine
20
Always Prepare Stable Scaffold
20
Protect Ears from Noise
21
Wear Ear Plugs
21
Be Careful of Burns
21
Do Not Touch the Engine During or Immediately after Operation
21
Do Not Open the Radiator Filler Cap When the Engine Is Hot
21
Do Not Touch High Pressure Injection Fuel
21
Refill Coolant Only after the Coolant Temperature Dropped
21
Be Careful When Handling Fuel, Engine Oil or LLC
22
Use Only Specified Fuel, Engine Oil and LLC
22
Handle LLC Carefully
22
Proper Disposal of Waste Oil, LLC and Coolant
22
When Abnormality Occurs
22
Do Not Add Coolant Immediately after a Sudden Stop Due to Overheating
22
Avoid Immediate Restart after Abnormal Stop
22
Avoid Continuous Engine Operation at Low Oil Pressure
22
If Belt Breaks, Stop Engine Immediately
22
Service Battery
23
Handle the Battery Correctly
23
Other Cautions
24
Never Modify Engine
24
Observe Safety Rules at Work Site
24
Work Clothing and Protective Gear
24
Never Break Seals
24
Perform All Specified Pre-Operation Inspections and Periodic Inspections
24
Break-In the Engine
24
Warm up the Engine before Use
24
Never Operate the Engine in an Overloaded Condition
24
Conduct Cooling Operation before Stopping the Engine
25
Protection of the Engine against Water Entry
25
Conduct Proper Maintenance of Air Cleaner
25
Use of Tools Optimum for each Work
25
Avoidance of Prolonged Time of Starter Operation
25
Do Not Turn off the Battery Switch During Operation
25
Cautionary Instructions for Transporting the Engine
25
Chapter 2 NAME of PARTS
26
Engine External Diagrams
26
Equipment and Instrument
28
Starter Switch
28
Preheat Indicator
28
Water Temperature Meter and Thermo Unit
29
Ammeter
29
Hour Meter
29
Stop Solenoid
30
Engine Protection Devices
31
Oil Pressure Switch
31
Thermo Switch
31
Air Cleaner Indicator
31
Chapter 3 OPERATION
32
Preparations for Operation
32
Engine External - Inspect
32
Battery Electrolyte Level - Inspect
32
Fuel Tank Oil Level - Check
33
Engine Oil Level - Check
33
Coolant Level - Check
34
Starting
35
Automatic Glow Plug
35
Manual Glow Plug
35
Table 3-1 Preheat Duration
35
Table 3-2 Preheat Duration (Manual Grow Plug)
35
Warm up Operation
36
Checking Engine Oil Pressure
36
External Inspection During Warm up
36
Operation
37
Cautions When Operating
37
Inspection During Operation
37
Table 3-3 Standard Values at Rated Speed
37
Stopping
38
Inspection after Stopping
38
Chapter 4 FUEL
40
Recommended Fuel
40
Handling Fuel
40
Table 4-1 Recommended Limit and Use Limit of
41
Chapter 5 ENGINE OIL
44
Recommended Engine Oil
44
Selection of Oil Viscosity
44
Handling Engine Oil
44
Engine Oil Performance Requirements
45
Engine Oil Deterioration Mechanisms
45
Definition of Properties of Engine Oil
46
Viscosity
46
Total Base Number
46
Total Acid Number
46
Water Content
46
Flash Point
46
Insoluble
46
Service Limits of Engine Oil
47
Table 5-1 Engine Oil Properties
47
Chapter 6 COOLANT
48
Recommended Water for Coolant
48
Long Life Coolant (LLC)
48
Genuine LLC
48
Glassy - Llc
48
Table 6-1 Water Quality Standards
48
Other Brand Llcs
49
Standard for Other Brand LLC
49
General Demands of LLC
49
LLC Specification
50
Table 6-2 LLC Specification
50
Maintenance of LLC
52
Replacement Intervals of LLC
52
LLC Concentration
52
Table 6-3 Recommended LLC Concentration
52
Importance of LLC
53
Characteristics of LLC Additive and Important Notes
53
Examples of Abnormalities Caused by LLC (Amine Type)
53
Pitting of Iron Parts
53
Corrosion of Aluminum Parts
53
Pitting and Clogging of the Radiator
53
Chapter 7 MAINTENANCE SCHEDULE
54
How to Use the Maintenance Schedule
54
Maintenace Schedule
55
Table 7-1 Maintenace Schedule
55
Chapter 8 PERIODIC INSPECTION and MAINTENANCE PROCEDURES
56
Basic Engine
56
Belt and Belt Tension - Inspect and Adjust
56
Adjust
56
Fuel System
57
Fuel Tank - Drain Water
57
Solenoid Fuel Pump Filter - Inspect and Clean
57
Clean
57
Fuel System - Bleed Air
58
Fuel Filters (Cartridge Type) - Bleed Air
58
Water Sedimenter - Bleed Air
59
Water Sedimenter - Drain Water
60
Fuel Filter (Cartridge Type) - Replace
60
Fuel Filter Element (Switching Cock Type) - Replace
61
Solenoid Fuel Pump Filter - Replace
61
Lubricating System
62
Engine Oil and Oil Filter - Replace
62
Engine Oil - Refill
63
Oil Filter - Change
64
Oil Filter
64
Cooling System
65
Coolant - Change
65
Radiator Filler Cap
65
Coolant Drain Cock (Radiator)
65
Coolant Drain Plug (Engine)
66
Radiator Coolant Level
67
Reserve Tank
67
Radiator Fins - Check and Clean
68
Radiator Fins - Clean
68
Inlet and Exhaust Systems
69
Air Cleaner - Check
69
Air Cleaner Element - Clean and
69
Check
69
Air Cleaner Element - Clean, Check and Replace
70
Electrical System
71
Battery Electrolyte Level - Inspect
71
Specific Gravity of Battery Electrolyte
71
Check
71
Table 8-1 Specific Gravity of Electrolyte
71
Starter - Inspect
72
Alternator - Inspect
72
Chapter 9 LONG-TERM STORAGE
74
Storing the Engine in a Non-Operable Condition for 3 Months or more
74
Preparation for Storage
74
Maintenance During Storage
74
Table 9-1 Recommended Rust-Preventive Oil
74
Using the Engine after Storage
75
Storing the Engine in an Operable Condition for 3 Months or more
75
Operating the Engine for Maintenance
75
Chapter 10
76
Lifting the Engine
76
Hangers
76
Engine's Center of Gravity
76
(Standard Specification)
76
Chapter 11 TROUBLESHOOTING
78
General Precautions
78
Contact a Dealer of Mitsubishi Heavy Industries, Ltd. for Repair Service
78
Considerations before Work
78
Cautions against Contamination
78
Cautions Regarding Parts Handling
78
Work Safety
78
Troubleshooting
79
The Starter Does Not Crank or Cranks Slowly, Resulting in Start Failure
79
The Starter Cranks, but the Engine Does Not Start
79
Table 11-1 the Starter Does Not Crank or Cranks Slowly, Resulting in Start Failure
79
Table 11-2 the Starter Cranks, but the Engine
79
Output Decrease
80
Table 11-3 Output Decrease
80
Exhaust Smoke Is White or Blue
81
Table 11-4 Exhaust Smoke Is White or Blue
81
Exhaust Smoke Is Black or Charcoal
82
Table 11-5 Exhaust Smoke Is Black or Charcoal
82
Fuel Consumption Is High
83
Table 11-6 Fuel Consumption Is High
83
Engine Oil Consumption Is High
84
Table 11-7 Engine Oil Consumption Is High
84
Overheating
85
Low Engine Oil Pressure
85
Table 11-8 Overheating
85
Table 11-9 Low Engine Oil Pressure
85
When Fuel Has Run out
86
Chapter 12
88
Main Specifications
88
Table 12-1 Main Specifications
88
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Mitsubishi L2E Specifications
General
Brand
Mitsubishi
Model
L2E
Category
Engine
Language
English
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