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Mitsubishi Heavy Industries
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L2
Mitsubishi Heavy Industries L2 User Manual
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Table of Contents
Default Chapter
4
Limited Warranty
4
Warranted Parts
5
Warranty Coverage
5
Warranty Period
5
Important Information
6
Table of Contents
9
Chapter 1 BASIC SAFETY PRECAUTIONS
15
Fire and Explosion
15
Keep Flames Away
15
Keep Engine Surrounding Area Tidy and Clean
15
Care for Fuel, Oil and Exhaust Gas Leakage
15
Use Explosion-Proof Lighting Apparatus
15
Prevent Electrical Wires from Short-Circuiting
15
Keep Fire Extinguishers and a First-Aid Kit Handy1-1
15
Stay Clear of All Rotating and Moving Parts
16
Install Protective Covers Around Rotating Parts
16
Check the Work Area for Safety
16
Stay Clear of Moving Parts During Engine Running
16
Lockout and Tagout
16
Keep Engine Stopped During Servicing
16
Always Restore Engine Turning Tools after Use
16
Changing the Engine Speed Setting Is Prohibited1-2
16
Be Careful of Exhaust Fume Poisoning
17
Operate the Engine in a Well-Ventilated Area
17
Protect Ears from Noises
17
Wear Ear Plugs
17
Be Careful of Falling down
17
Lift Engine Carefully
17
Be Careful of Burns
18
Do Not Touch Engine During or Immediately after Operation
18
Do Not Open the Radiator Filler Cap When the Engine Is Hot
18
Add Coolant Only after the Coolant Temperature Dropped
18
Be Careful of Handling Fuel, Engine Oil and LLC
18
Use Only Specified Fuel, Engine Oil and Long-Life Coolant (LLC)
18
Handle LLC (Long Life Coolant) Carefully
18
Proper Disposal of Waste Oil and Coolant (LLC)
18
Service Battery
19
Handle the Battery Correctly
19
When Abnormality Occurs
19
Do Not Add Coolant Immediately after a Sudden Stop Due to Overheating
19
Avoid Immediate Restart after Abnormal Stop
19
Avoid Continuous Engine Operation at Low Oil Pressure
19
If the Fan Belt Breaks, Stop the Engine Immediately
19
Other Cautions
20
Never Modify Engine
20
Never Break the Seals
20
Perform All Specified Pre-Operation Inspections and Periodic Inspections
20
Break-In the Engine
20
Warm up the Engine before Use
20
Never Operate the Engine in an Overloaded Condition
20
Conduct Cooling Operation before Stopping the Engine
20
Protection of the Engine against Water Entry
20
Properly Maintain the Air Cleaner and Pre-Cleaner
21
Observe Safety Rules at Work Site
21
Work Clothing and Protective Gear
21
Use of Tools Optimum for each Work
21
Do Not Operate the Starter for a Prolonged Time
21
Do Not Turn off the Battery Switch During Operation
21
Cautionary Instructions for Transporting the Engine
21
Do Not Touch High-Pressure Injection Fuel
21
Chapter 2 NAMES of PARTS
23
Engine External Diagrams
23
L2E Left View
23
L2E Right View
23
Fig. 2-1 Engine Left View(L2E)
23
Fig. 2-2 Engine Right View(L2E)
23
L3C,L3E Left View
24
L3C,L3E Right View
24
Fig. 2-3 Engine Left View(L3C,L3E)
24
Fig. 2-4 Engine Right View(L3C,L3E)
24
Equipment and Instrument
25
Starter Switch
25
Preheat Indicator
25
Automatic Glow Type
25
Manual Glow Type
25
Water Temperature Meter and Thermo Unit
25
Fig. 2-6 Preheat Indicator
25
Fig. 2-7 Water Temperature Meter and
25
Ammeter
26
Hour Meter
26
Stop Solenoid
26
RUN off (ETS: Energized to Stop) Type
26
RUN on (ETR: Energized to Run) Type
26
Fig. 2-8 Ammeter
26
Fig. 2-9 Hour Meter
26
Fig. 2-10 Stop Solenoid
26
Engine Protection Devices
27
Oil Pressure Switch
27
Thermo Switch
27
Air Cleaner Indicator
27
Fig. 2-11 Oil Pressure Switch
27
Fig. 2-12 Thermo Switch
27
Fig. 2-13 Air Cleaner Indicator
27
Chapter 3 OPERATION
29
Preparations for Operation
29
External Inspection
29
Inspecting the Battery Electrolyte Level
29
Fig. 3-1 Checking Battery Electrolyte Level
29
Checking the Fuel Tank Oil Level
30
Checking the Engine Oil Level
30
Fig. 3-2 Checking Fuel Level
30
Fig. 3-3 Oil Filler and Oil Level Gauge
30
Checking the Coolant Level
31
Fig. 3-4 Radiator Cap
31
Fig. 3-5 Radiator Coolant Level
31
Fig. 3-6 Reserve Tank Coolant Level
31
Starting
32
Automatic Grow Plug
32
Manual Grow Plug
32
Warming-Up Operation
33
Checking Engine Oil Pressure
33
External Inspection During Warm-Up
33
Operation
34
Inspection During Operation
34
Stopping
35
Inspection after Stopping
35
Chapter 4 FUEL
37
Recommended Fuel
37
Handling Fuel
37
Fig. 4-1 Recommended Fuel
37
Fig. 4-2 Recommended Fuel According
37
Chapter 5 ENGINE OIL
39
Properties of Engine Oil and Its Influence on Engine Performance
39
Main Properties of Engine Oil
39
Dispersibility
39
Acid Neutralization Ability
39
Viscosity
39
Recommended Engine Oil
40
Selection of Oil Viscosity
40
Fig. 5-1 Recommended Engine Oil
40
Fig. 5-2 Recommended Oil Viscosity According
40
Other Brands of Engine Oil
41
Handling Engine Oil
41
Service Limits of Engine Oil
42
Definition of Properties of Engine Oil
42
Viscosity
42
Total Base Number
42
Total Acid Number
42
Water
42
Flash Point
42
Insolubles
42
Chapter 6 COOLANT
43
Recommended Water for Coolant
43
Long Life Coolant (LLC)
43
Genuine LLC
43
Fig. 6-1 GLASSY - LLC
43
Other Brand Llcs
44
Standard for Other Brand LLC
44
General Demands of LLC
44
LLC Specification
45
Maintenance of LLC
48
Replacement Intervals of LLC
48
LLC Concentration
48
Importance of LLC
49
Characteristics of LLC Additive and Important Notes
49
Examples of Abnormalities Caused by LLC
49
Pitting of Iron Parts
49
Corrosion of Aluminum Parts
49
Pitting and Clogging of the Radiator
49
Chapter 7 MAINTENANCE SCHEDULE
51
How to Use the Maintenance Schedule7-1
51
Table 7-1 Maintenance Schedule
51
Chapter 8 PERIODIC INSPECTION and MAINTENANCE PROCEDURES
53
Every 50 Service Hours
53
Draining Water from the Fuel Tank
53
Checking the Air Cleaner
53
Fig. 8-1 Draining Water from Fuel Tank
53
Fig. 8-2 Checking Air Element
53
Every 100 Service Hours
54
Checking and Cleaning Solenoid Fuel Pump Filter8-2
54
Fig. 8-3 Checking and Cleaning Solenoid Fuel
54
Every 250 Service Hours
55
Changing the Engine Oil and Oil Filter
55
Draining Engine Oil
55
Fig. 8-4 Engine Oil Drain Plug
55
Changing the Oil Filter
56
Fig. 8-5 Changing Oil Filter
56
Fig. 8-6 Oil Filter
56
Refilling Engine Oil
57
Inspecting V-Belt and Adjusting Belt Tension
58
Inspecting V-Belt
58
Adjusting V-Belt Tension
58
Checking and Cleaning the Radiator Fins
58
Fig. 8-8 Tension Adjusting V-Belt
58
Fig. 8-9 Cleaning Radiator Fins
58
Every 400 Service Hours
59
Changing Fuel Filter (Cartridge Type)
59
Fig. 8-10 Changing Fuel Filter (Cartridge Type)
59
Every 500 Service Hours
60
Changing Fuel Filter Element (Cock Type)
60
Replacing Solenoid Fuel Pump Filter
60
Fig. 8-11 Changing Fuel Filter Element
60
Every 1000 Service Hours
61
Inspecting Starters
61
Inspecting Alternator
61
Every 2 Years
62
Changing the Coolant
62
Draining the Coolant
62
Cleaning the Cooling System
62
Refilling the Coolant
63
When Required
64
Cleaning, Inspecting, and Replacing the Air Cleaner Element
64
Bleeding the Fuel System
65
Bleeding the Fuel Filter (Cock Type)
65
Bleeding the Fuel Filter (Cartridge Type)
65
Bleeding Water Sedimenter
65
Draining Water Sedimenter
66
Checking the Specific Gravity of Battery Electrolyte
66
Chapter 9 LONG-TERM STORAGE
67
Storing the Engine in a Non-Operable Condition for 3 Months or more
67
Preparation for Storage
67
Recommended Rust-Preventive Oil and Corrosion Inhibitor
67
Maintenance During Storage
67
Using the Engine after Storage
68
Storing the Engine in an Operable
68
Operating the Engine for Maintenance
68
Chapter 10 TRANSPORTATION
69
Lift the Engine Carefully
69
Chapter 11 TROUBLESHOOTING
71
General Precautions
71
Contact Your Mitsubishi Dealer for Repair Service
71
Considerations before Work
71
Cautions against Contamination
71
Cautions Regarding Parts Handling
71
Work Safety
71
How to Troubleshoot
72
The Starter Does Not Crank or Cranks Slowly, Resulting in Start Failure
72
The Starter Cranks, but the Engine Does Not Start
72
Other Problems and Countermeasures11-3
73
Engine Output Is Low
73
Exhaust Smoke Is White or Blue
73
Exhaust Smoke Is Black or Dark Gray
74
Fuel Consumption Is High
74
Engine Oil Consumption Is High
74
Engine Overheats
75
Engine Oil Pressure Is Faulty
75
When Fuel Has Run out
75
Table 11-8 Engine Overheats
75
Chapter 12 MAIN SPECIFICATIONS
77
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Mitsubishi Heavy Industries L2 Specifications
General
Brand
Mitsubishi Heavy Industries
Model
L2
Category
Engine
Language
English
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