Yanmar 12AYM-WST Marine Diesel Engine Manuals

Manuals and User Guides for Yanmar 12AYM-WST Marine Diesel Engine. We have 1 Yanmar 12AYM-WST Marine Diesel Engine manual available for free PDF download: Operation Manual

Yanmar 12AYM-WST Operation Manual (71 pages)

Marine Propulsion Engine

Brand: Yanmar | Category: Engine | Size: 1 MB

Introduction
2
Contents
3
For Your Safety
4
Safety Symbols
4
Safety Precautions
5
No Modification
7
Regulation on Nox
7
Waste Disposal
7
Warning Labels
8
Operation Side
8
Non-Operation Side
9
Precautions for Lifting the Engine
10
Engine Nameplate
11
Location of the Engine Nameplate
11
Specifications
12
Location of Components
13
Function of Major Components
14
Fuel Oil System
14
Cooling System
14
Lubricating Oil System
14
Supply Air System
15
Electric System
15
Governor System
15
Turbocharger
15
Piping Diagram of Major Engine Parts
16
Fuel Injection Pump
16
Double Wall Fuel High Pressure Pipe
16
Cooling Water System
17
Seawater System
17
Coolant System
17
Control System
19
Instrument Panel
19
Alarm Devices
21
Battery Charge
21
Lubricating Oil Pressure Low Alarm Lamp
21
Lubricating Oil Filter Clogged Alarm Lamp
21
Gauge Panel
22
Starting Devices
23
Electric Start Method
23
Air Start Method
23
Control Device
24
2-Handle Controller Head
24
Fuel
25
Quality Criteria of Fuel Oil
25
When Supplying Fuel
25
Lubricating Oil
26
Selection of the Lubricating Oil
26
Service Categories
26
Selection of the Marine Gear Oil
26
Coolant
27
Coolant Selection
27
Long Life Coolant Mixture Selection
27
Running-In
28
Initial Operation
28
Filling Oil to the Fuel Oil System
28
Bleeding the Fuel Oil System
29
Filling Lubricating Oil
30
Filling the Engine Lubricating Oil
30
Filling the Lubricating Oil of the Hydraulic Governor
30
Filling Coolant
31
Filling the Lubricating Oil of the Marine Gear
31
Filling the Lubricating Oil of the Air Starter's Oiler
31
Lubricating Engine Parts
34
Governor Lever
34
Hydraulic Governor Link
34
Rocker Arm
34
Cranking
35
Lubricating Oil Priming
36
Checking before Starting
37
Visual Inspection of the Engine
37
Checking and Refilling Fuel Oil
37
Checking and Refilling Engine Lubricating Oil
37
Checking and Refilling Marine Gear Lubricating Oil
38
Checking and Refilling Coolant
38
Checking the Instruments Panel
38
Checking the Control Device
38
Checking the Air Starter
39
Rechecking after Starting
39
Operation
40
Starting
40
Start with Electric Starter
40
Normal Function of Alarm Devices
41
Starting in Cold by Air Heater
42
Start with the Air Starter
42
Engine Warm-Up
43
Check During Warm-Up Operation
43
Notice While Running with Load
44
First Running
44
Cooling Water
44
Color of Exhaust Gas
44
Water Leakage, Oil Leakage and Other Operational Conditions
45
Long Time Operation at Low Speed
45
Stopping
46
Long-Term Storage
47
Storing Engine for a Long Time
47
Operating after Long-Term Storage
47
Periodic Maintenance
48
Periodic Maintenance Schedule
48
Fuel System
50
Fuel Level Checking
50
Fuel Tank Deposit Draining
50
Fuel Filter and Water Separator Draining
50
Oil Level
51
Replacement of Oil Filter
51
Engine Oil Changing
52
Priming Pump
52
Oil Discharge Pump
52
Cleaning of Lubricating Oil Bypass Filter
53
Replacement of Hydraulic Governor Oil
54
Replacement of Marine Gear Oil and Filter
54
Discharging Seawater
55
Replacement of Zinc Anodes
55
Cleaning Seawater Strainer of Heat Exchanger
55
Replacement of Seawater Pump Impeller
56
Coolant Level
57
Water Pump Leakage
57
Coolant Change
57
Checking and Servicing
58
Wash the Pre-Filter
58
Wash the Blower
58
Rubber Hoses
59
Control Handle and Cables
59
The Connections of Parts
59
Hoses and Tightening Hose Clips
59
Electrical Parts
60
The Alarm Devices
60
The Battery Fluid Level
60
The Alternator Drive Belt Tension
60
Adjustment of Valve Clearance
61
Valve Bridge Parallel Adjustment
61
Valve Clearance Adjustment
61
Troubleshooting and Countermeasures
62
Starting Failure
63
Rotational Speed Drops Spontaneously
63
Lubricating Oil Pressure out of the Specified Pressure
64
Coolant Temperature Is too High
64
Engine Stop Suddenly
64
Exhaust Temperature of All the Cylinders Is too High
65
Bad Color of Exhaust Gas
65
Unusual Sounds Occur During Operation
65
Wiring Diagram
66
Earth Float Without Air Heater
66

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