Universal M-25XPB Marine Diesel Engine Manuals

Manuals and User Guides for Universal M-25XPB Marine Diesel Engine. We have 4 Universal M-25XPB Marine Diesel Engine manuals available for free PDF download: Service Manual, Operator's Manual

Universal M-25XPB Service Manual (116 pages)

Brand: Universal | Category: Engine | Size: 3 MB

Safety Instructions
3
Accidental Starting
4
Toxic Exhaust Gases
4
Battery Explosion
4
Battery Acid
4
Hazardous Noise
5
Safe Engine Installations
5
Installation
6
Siphon-Break
6
Table of Contents
7
Engine Overhaul
8
Product Software
8
Serial Number Location
8
Parts Identification
9
Product View
9
Specifications
10
Testing for Overhaul
12
How to Determine When to Overhaul the Engine
12
Cause of Low Compression
12
Measuring Compression Pressure
12
Engine Troubleshooting
13
Service Standards
21
Engine Components Data
21
Engine Description
24
Cylinder Block
24
Cylinder Head
24
Crankshaft
24
Connecting Rod
25
Camshaft
25
Fuel Camshaft
25
Rocker Arm
25
Flywheel
26
Engine Disassembly and Reassembly
27
Transmission
27
External Components Disassembly/Reassembly
28
Cylinder Head and Valves
29
Nozzle Holder Assembly
29
Cylinder Head Cover
30
Rocker Arm and Push Rod
30
Tappets
30
Gear Case
31
Coolant Pump
31
Valves
31
Engine Stop Solenoid and Speed Control Plate
31
Injection Pump
32
Governor Shaft
33
Fork Lever
33
Piston and Connecting Rod
34
Camshaft Gear and Idler Gear #1
34
Oil Pan and Oil Pan Filter
34
Connecting Rod Cap
34
Piston
35
Piston Ring and Connecting Rod
35
Flywheel and Crankshaft
36
Bearing Case Cover and Crankshaft
36
Main Bearing Case Assembly
37
Cylinder Head Distortion
38
Cylinder Head Flaw
38
Valve Recession
38
Valve Stem to Valve Guide Clearance
38
Engine Service
39
Valve Seating
39
Correcting Valve and Valve Seat
39
Valve Lapping
39
Replacing Valve Guide
40
Measuring Valve Spring
40
Oil Clearance between Rocker Arm Shaft and Bearing
40
Push Rod Alignment
40
Timing Gears and Camshaft
41
Oil Clearance between Tappet and Tappet Guide Bore
41
Camshaft Side Clearance
41
Camshaft Alignment
41
Piston Pin Bore ID
42
Camshaft Journal Oil Clearance
42
Replacing the Idler Gear Bushing
42
Replacing Connecting Rod Small End Bushing
42
Piston Ring Gap
43
Piston Ring Clearances
43
Connecting Rod Alignment
43
Crankshaft Side Clearance
44
Crankshaft Alignment
44
Oil Clearance between Crankpin and Crankpin Bearing
44
Oil Clearance between Crankshaft Journal and Crankshaft Bearing 1
45
Oil Clearance between Crankshaft Journal and Crankshaft Bearings 2, 3
46
Replacing Crankshaft Bearing No. 1
46
Cylinder Wear
47
Correcting Cylinder
48
Engine Adjustments
49
Valve Clearance Adjustment
49
Top Clearance
49
Tightening the Cylinder Head Bolts
49
Oil Pressure
50
Testing Engine Compression
50
Drive Belt Adjustment
51
Checking Belt Tension
51
Adjustng Belt Tension
51
Idle Speed Adjustment and Tachometer Check
52
Exhaust Manifold Service
53
Lubrication System Description
54
Oil Pump
55
Relief Valve
55
Oil Filter
55
Oil Pressure Switch
55
Low Oil Pressure
56
Checking the Oil Pressure
56
Oil Pump - Rotor Lobe Clearance
56
Clearance between Outer Rotor and Pump Body
57
Clearance between Rotor and Cover
57
Cooling System Description
58
Thermostat
58
Raw Water Pump
58
Coolant Recovery Tank
59
Zinc Anode
59
Heat Exchanger
59
Thermostat View
60
Changing the Raw Water Impeller
60
Checking the Thermostat Valve Opening Temperature
60
Cooling System Service
61
Coolant Pump Service
61
Fuel System Description
62
Injection Pump
62
Injection Nozzle
63
Delivery Valve
63
Injection Control
63
Fuel Filter
64
Fuel Lift Pump
64
Governor
64
Fuel System Disassembly and Reassembly
66
Fuel System Service
67
Injection Timing
67
Fuel Tightness of Pump Element
67
Fuel Tightness of Delivery Valve
67
Fuel Injectors Service
68
Nozzle Injection Pressure
68
Nozzle Spraying Condition
68
Valve Seat Tightness
68
Admiral Control Panel
69
Captain Control Panel
70
Control Panel Troubleshooting
71
Hourmeter Inoperative
71
Tachometer Inoperative
71
Tachometer Sticking/Inaccurate
71
Manual Starter Disconnect (Toggle Switches)
72
Troubleshooting Water Temperature and Oil Pressure Gauges
72
Glow Plugs Service
73
Starter Service
74
Starter Testing
74
Motor Test
74
Magnet Switch Test (Pull-In, Holding Coils)
74
Starter Disassembly and Assembly
75
Commutator and Mica
75
Brush Wear
76
Brush Holder
76
Armature Coil
76
Field Coil
76
Armature Bearing
77
Overrunning Clutch
77
Magnet Switch
77
Mando Alternator Service
78
Precautions for Testing Alternator
78
Preparing to Check Alternator
78
Test Output Circuit
79
Test Excitation Circuit
79
Test Alternator Current Output
80
Test Voltage Regulator
80
Remove Alternator
81
Disassemble Alternator
82
Clean and Test Alternator Components
83
Assemble Alternator
85
Install Alternator
87
Mando Alternator Specifications
87
Prestolite Alternator Service
88
Storage Battery
88
Battery Inspection
88
Prestolite Alternator Description
89
Prestolite Alternator Troubleshooting
90
Alternator/Regulator Tests
91
Alternator Output Test
92
Prestolite Alternator Repair Procedure
92
Prestolite Alternator Disassembly and Testing
92
Prestolite Alternator Reassembly
97
Prestolite Alternator Performance Tests
98
DC Electrical System
100
Wiring Diagram
100
Hurth HBW Transmissions
104
Shaft Coupling
104
Shift Lever
104
Transmission Fluid Change
105
Locking the Propeller
105
When under Sail or Being Towed
105
HBW Transmission Specifications
105
Operating Temperature (Transmission)
106
Transmission Cooler
106
Transmission Maintenance
106
Transmission Troubleshooting
107
Special Tools
108
Torques
110
Standard Hardware
111
Sealants and Lubricants
111
Metric Conversions
112
Standard and Metric Conversion Data
113
Index
114

Universal M-25XPB Operator's Manual (52 pages)

MARINE DIESEL ENGINES

Brand: Universal | Category: Engine | Size: 3 MB

Table of Contents
11
Introduction
12
- Warranty Procedures
  12
- Typical Customer Identification Card
  12
- Product Software
  12
- Notes, Cautions and Warnings
  12
- Serial Number Location
  13
- Understanding the Diesel Engine
  13
- Ordering Parts
  13
- Spares and Accessories
  13
- Protecting Your Investment
  13
Admiral Control Panel
14
Captain Control Panel
15
Diesel Fuel, Engine Dil and Engine Coolant
16
- Diesel Fuel
  16
  - Care of the Fuel Supply
    16
  - Engine Oil
    16
- Engine Coolant
  16
- Coolant and Recovery Tank
  16
Preparations for Initial Start-Up
17
- Prestart Inspection
  17
Startingjstopping Procedure
18
- Starting Procedure
  18
- Preheat
  18
- Start
  18
- Starting under Cold Conditions
  18
- Stopping Procedure
  18
Break-In Procedure
19
- The First 50 Hours
  19
The Daily Routine
20
- Check List
  20
- Start Your Engine
  20
Maintenance Schedule
21
Engine Cooling Circuit
23
- Description
  23
  - To Refill with Coolan
    23
- Thermostat
  24
  - To Replace the Thermostat
    24
- Raw Water Cooling Circuit
  24
  - Raw Water Pump
    24
  - Changing the Raw Water Impeller
    25
  - Heat Exchanger
    25
  - Zinc Anode
    25
Engine Oil Change
26
- Drain the Sump
  26
  - Replacing the Oil Filter
    26
  - Refill the Oil Sump
    26
Remote Oil Filter
27
- Installation
  27
Fuel System
28
- Fuel Filters
  28
- Fuel Water Separator
  28
- Fuel Additivcs
  29
- Spares
  29
- Primary (Blecding/The Fuel System)
  29
  - Air Cleaner/Silencer
    29
DC Electrical System
30
- Description
  30
  - Alternator Troubleshooting
    30
  - Checking for Propcr Voltage
    30
- Engine 12 Volt DC Control Circuit
  31
- Drivc Belt Adjustmcnt
  31
- Battery Care
  31
- Glow Plugs
  31
Wiring Diagram
32
Wiring Schematic
33
Engine Adjustments
34
- Throttle and Stop Assembly
  34
- Valve Clearance
  34
Water Heater Connections
35
- Water Heater Installations
  35
Engine Troubleshooting
36
Control Panel Troubleshooting
38
Manual Starter Disconnect (Toggle Switches)
38
- Troubleshooting Water Temperature and Oil Pressure Gauges
  38
Tachometer Troubleshooting
39
- Tachometer/Hourmeter
  39
  - Hourmeter Inoperative
    39
  - Tachometer Inoperative
    39
  - Tachometer Sticking
    39
  - Calibration
    39
HBW Transmission
40
- Initial Operation
  40
- Gearbox Operation
  40
- When under Sailor Being Towed
  40
- Locking the Prop
  40
- Control Cables
  40
- Maintenance
  41
  - Transmission Fluid
    41
  - Capacity
    41
  - Fluid Change
    41
  - Checking the Bowdin Cable or Rod Linkage
    41
  - Propeller Shaft Alignment
    41
  - Lay-Up/Winterize
    41
Lay-Up and Recommissioning
42
- Lay-Up
  42
- Propeller Shaft Coupling
  42
- Fresh Water Cooling System
  42
- Lubrication System
  42
- Fuel System
  42
- Raw Water Circuit
  42
- Intake Manifold
  43
- Starter Motor
  43
- Cylinder Lubrication
  43
- Transmission
  43
- Spares
  43
- Batteries
  43
- Recommissioning
  43
Specifications
44
Parts Identification
46
Metric Conversions
47
Standard Hardware Torques
48
Spare Parts
49

Universal M-25XPB Operator's Manual (54 pages)

MARINE DIESEL ENGINES

Brand: Universal | Category: Engine | Size: 3 MB

Table of Contents
7
Parts Identification
8
Warranty Procedures
9
Serial Number Location
10
Admiral Control Panel
11
Captain Control Panel
12
Diesel Fuel, Engine Oil and Engine Coolant
13
Preparations for Initial Start-Up
14
Starting/Stopping Procedure
15
Break-In Procedure
16
The Daily Routine
17
Alarms and Circuit Breakers
17
Maintenance Schedule
18
Engine Cooling Circuit
20
Raw Water Pump
21
Changing the Raw Water Impeller
21
Raw Water Intake Strainer
22
Thermostat
22
Heat Exchanger
22
Engine Oil Change
23
Remote Oil Filter
24
Fuel System
25
Air Cleaner/Silencer
25
Fuel Lift Pump
25
Fuel Filters
26
DC Electrical System
27
Drive Belt Adjustment
27
Glow Plugs
27
Wiring Schematic
32
Engine Adjustments
33
Throttle and Stop Assembly
33
Valve Clearance
33
Engine Troubleshooting (Chart)
36
Control Panel Troubleshooting (Chart)
37
Troubleshooting Water Temperature
37
Water Heater
39
Changing the Fluid
40
Gear Shifting
40
Daily Operation
40
Control Cables
43
Transmission Troubleshooting
43
Shaft Couplings
43
Shift Lever
43
Fluid Change
44
Operating Temperature
45
Transmission Cooler
45
Maintenance
45
Control Cables
46
Lay-Up and Recommissioning
48
Specifications
50

Universal M-25XPB Operator's Manual (52 pages)

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