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Doosan DE12T Manuals
Manuals and User Guides for Doosan DE12T. We have
2
Doosan DE12T manuals available for free PDF download: Operation & Maintenance Manual
Doosan DE12T Operation & Maintenance Manual (176 pages)
Brand:
Doosan
| Category:
Engine
| Size: 10.07 MB
Table of Contents
Table of Contents
3
1 Safety Regulations
5
General Notes
5
Regulations Designed to Prevent Accidents
5
Regulations Designed to Prevent Damage to Engine and Premature Wear
6
During Maintenance and Care
6
When Carrying out Checking, Setting and Repair Work
6
Regulations Designed to Prevent Pollution
7
Engine Oil, Filter Element, Fuel Filter
7
Coolant
7
Notes on Safety in Handling Used Engine Oil
7
2 General Information
9
Engine Assembly
9
Engine Sectional View (Longitudinal)
9
Engine Sectional View (Cross)
10
Engine Assembly Views
11
Engine Specification
13
3 Technical Information
14
Engine Model and Serial Number
14
Engine Type
15
Cylinder Block
15
Piston Con-Rod / Crankshaft
15
Engine Timing
16
Valves
16
Lubrication System
17
Air Cleaner
18
Fuel System
18
Oil Cooler
18
Oil Filter
18
Fuel Filter
19
Fuel Requirements
19
How to Select Fuel Oil
19
Fuel Oil Selection Chart
20
Cooling System
21
Coolant Pressure Cap
22
Cooling Water
22
Amount of Anti-Freeze in Winter
23
V-Belt Tension Check and Adjust
24
Turbocharger
24
Electrical Equipment
25
Alternator
25
Starter Motor
26
4 Commissioning and Operation
27
Preparation
27
Breaking-In
27
Operation of a New Engine (Break-In)
27
Check Points for Break-In
28
Operating after Break-In
28
Inspections after Starting
29
Pressure of Lubricating Oil
29
Operation in Winter Time
29
Temperature of Cooling Water
29
Tuning the Engine
30
5 Maintenance and Care
31
Periodical Inspection and Maintenance
31
Lubrication System
31
Oil Exchange Procedure
32
Recommend of Lubricating Oil
33
Replacement of Oil Filter Cartridge
34
Coolant Draining
34
Cooling System
34
Cleaning of the Cooling System Inside Circuit
35
Intercooler
36
Air Intake System
37
Maintenance (Only When Engine Is Switched Off)
37
Changing Filter Element
37
Cleaning Filter Elements
38
Replacement of Fuel Filter
39
Fuel System
39
Fuel System Checks
40
Air Removal of Fuel System
40
Fuel Supply Pump
40
Fuel Contamination and Water Trap
40
Priming Pump Strainer Cleaning
41
Bleeding the Fuel System
41
Injection Pump
41
Injection Nozzle Maintenance
42
Maintenance (by Authorized Specialist Personnel)
43
Special Hints
43
Measuring Rotor Axial Clearance
43
Measuring Radial Clearance
43
Turbocharger
43
6 Checking and Setting
45
Adjustment of Valve Clearance
45
Adjusting Order of the Valve Clearance
45
Method of Adjusting the Valve Clearance
46
Adjustment of Injection Timing
47
Method of Adjusting Injection Timing
47
Cylinder Compression Pressure
48
V-Belts
49
Measuring Tension
49
Reading of Tension
49
Tensioning and Changing V-Belt
50
7 Operation Tip
51
Periodic Inspection Cycle
51
Engine Starting Impossible
52
Engine Overheated
53
Output Insufficient
54
Oil Pressure Lowered
55
Fuel Consumption Excessive
56
Oil Consumption Excessive
57
Battery Discharge
58
Causes and Remedies
59
General Repair Instructions
62
8 General Information
62
Engine Characteristics
63
OMEGA Combustion Bowl
63
Oil Gallery Cooling Type Piston
63
9 Disassembly and Reassembly of Major Components
64
General Precautions
64
Alternator Belt
65
Cooling Fan
65
Engine Oil
65
Breather
66
Guide Tube of Oil Level Gauge
66
Injection Pipe
67
Intake Manifold
67
Turbo Charger
67
Exhaust Manifold
68
Starter
68
Thermostat
68
Water Pump
69
Fan Drive Pulley
70
Idle Gear
70
Timing Gear Case Cover
70
Vibration Damper
70
Cylinder Head Cover
71
Fuel Injection Pump Drive Assembly
71
Injection Nozzle
71
Rocker Arm Assembly
71
Cylinder Head
72
Valve and Valve Stem Seal
72
Oil Pan
73
Oil Pump and Oil Pipe
73
Relief Valve
73
Cylinder Liner
74
Flywheel
74
Cam Shaft and Tappet
75
Crankshaft Gear and Oil Pump Idle Gear
75
Flywheel Housing
75
Oil Seal
75
Crankshaft
76
Oil Spray Nozzle
76
Distortion at the Lower Face
77
Inspection
77
Lower Face Warpage and Height
77
Flatness
78
Hydraulic Test
78
Valve and Valve Guide
78
Valve Stem Outer Diameter
78
Valve Guide
79
Valve Head Thickness
79
Valve Stem End Play
79
Contacting Face Amount
80
Valve Contact Width
80
Valve Depression
80
Valve Seat
80
Valve Spring
81
Valve Spring Free Length
81
Valve Spring Inclination
81
Visual Check
81
Rocker Arm Shaft Assembly
82
Rocker Arm Shaft Diameter
82
Rocker Arm Shaft Run-Out
82
Valve Spring Tension
82
Clearance
83
Diameter of the Rocker Arm Bushing
83
Rocker Arm
83
Tappet and Push Rod
83
Outside Diameter
84
Push Rod Run-Out
84
Visual Check of Tappet
84
Cam Lobe Height
85
Cam Shaft
85
Cam Surface
85
Cam Shaft End Play
86
Defect Check
86
Run-Out
86
Undersize Bearings Available
87
Wear
87
Crank Shaft Bearing and Connection Rod Bearing
88
Crankshaft Run-Out
88
Main Bearing Oil Clearance
88
Oil Clearance between Crankshaft and Bearing
88
Bearing Spread and Crush
89
Connecting Rod Bearing Clearance
89
Connecting Rod Bearing Crush
90
Crank Shaft End Play
90
Crankshaft Bearing Crush
90
Clearance between the Piston and Cylinder Liner
91
Piston
91
Piston Ring Gap
92
Piston Ring Side Clearance
92
Piston Rings
92
Piston Pin
93
Piston Ring Tension
93
Holes Alignment (Parallelism)
94
Reassembly
95
Tappet and Cam Shaft
95
Rear Oil Seal
98
Timing Gear
100
Front Oil Seal
101
Piston and Connecting Rod
102
Tightening Order
104
Intake and Exhaust Valves
105
Nozzle Tube
106
Cylinder Head Bolts
107
Tightening Order of Bolts by Steps
107
Guide for Valve Clearance Adjustment
108
Vibration Damper End Pulley
112
Power Take-Off
113
Breaking-In
116
10 Maintenance of Major Components
117
Cooling System
117
Fuel Injection Pump
121
Lubricating System
121
Turbocharger
159
11 Special Tool List
167
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Doosan DE12T Operation & Maintenance Manual (158 pages)
DIESEL VEHICLE ENGINE
Brand:
Doosan
| Category:
Engine
| Size: 8.03 MB
Table of Contents
Table of Contents
5
1 General Information
7
General Repair Instructions
7
Engine Characteristics
8
Engine Specifications
9
Engine Assembly
18
2 Major Maintenance
25
Preventive Maintenance
25
Diagnosis and Remedy
33
Engine Inspection
43
3 Disassembly and Reassembly of Major Components
44
Disassembly
44
Inspection and Measurement
58
Reassembly
73
Breaking-In
95
4 Maintenance of Major Components
97
Cooling System
97
Lubricating System
102
Fuel Injection Pump
106
Turbocharger
138
Appendix
146
Parts & after Service Center
156
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