Description
⚙️ Product Overview
The MAN Diesel & Turbo 3157168-7 is an SBU Switch Board Unit used in MAN B&W marine engine control applications. The module is identified as SBU-0240-C and is associated with part number 1142355-6. It is also identified in marine spare-parts references as an Alpha Lubricator SBU.
This unit is designed for use within marine engine automation and lubrication-control equipment. It is a specialized electronic spare part intended for replacement and maintenance of compatible MAN B&W systems.
The complete identification should be checked before ordering because different hardware revisions, serial numbers, and associated system configurations may exist for the same basic SBU designation.
🔧 Product Features
- MAN Diesel & Turbo marine automation component
- Switch Board Unit (SBU)
- Main part number: 3157168-7
- SBU designation: SBU-0240-C
- Associated part number: 1142355-6
- Associated with MAN B&W Alpha Lubricator systems
- Designed for marine engine automation applications
- Suitable for replacement and maintenance inventory
- Useful as an onboard or shore-based marine automation spare
- Part-number and revision verification recommended before installation
📋 Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | MAN Diesel & Turbo / MAN B&W |
| Model | 3157168-7 |
| Part Number | 3157168-7 |
| Product Type | Switch Board Unit |
| Product Name | SBU Switch Board Unit |
| Module Designation | SBU-0240-C |
| Associated Part No. | 1142355-6 |
| Application | Marine Engine Automation |
| Associated System | Alpha Lubricator |
| Condition / Status | Industrial Marine Automation Spare |
🚢 Application
The 3157168-7 SBU is associated with the electronic control architecture used in MAN B&W marine engine installations.
Within a compatible Alpha Lubricator arrangement, the SBU forms part of the control electronics supporting the lubrication-control system. Because marine engine automation equipment is configuration-dependent, the SBU should be replaced with a module matching the existing part number and applicable hardware revision.
This makes the 3157168-7 particularly relevant for:
- Marine engine maintenance
- Ship automation service
- MAN B&W engine spare-parts inventory
- Alpha Lubricator system maintenance
- Vessel repair and overhaul
- Emergency replacement requirements
- Marine automation system restoration
🔌 Replacement Considerations
Before installing a replacement SBU, technicians should verify:
- Existing module part number.
- SBU designation and associated part number.
- Hardware/revision information shown on the module label.
- Serial-number information where applicable.
- Connector and terminal arrangement.
- Compatibility with the vessel’s installed Alpha Lubricator configuration.
- Physical condition of the replacement module.
- Applicable vessel maintenance documentation.
Do not rely only on the external appearance of the board when selecting a replacement.
🛠️ Installation & Maintenance
Before removal
- Isolate the applicable equipment according to the vessel’s approved maintenance procedure.
- Record all wiring and connector positions.
- Photograph the existing installation if required for maintenance records.
- Record the module identification and revision.
During installation
- Handle the electronic module using appropriate ESD precautions.
- Inspect connectors for oxidation, contamination, or mechanical damage.
- Confirm that connectors are correctly seated.
- Avoid excessive force when mounting the module.
After installation
- Restore the system according to the approved startup procedure.
- Check the Alpha Lubricator control system for abnormal indications.
- Verify associated control functions.
- Monitor the system after commissioning.
- Record the replacement part number and revision in the maintenance log.
🔍 Troubleshooting
SBU Does Not Operate
Check the associated power, wiring, connectors, and installation condition. Confirm that the replacement module corresponds to the original configuration.
System Alarm Appears After Replacement
Check connector seating and associated wiring first. Verify that the installed SBU revision is compatible with the vessel’s control configuration.
Intermittent Operation
Inspect connectors and terminals for looseness, oxidation, contamination, or vibration-related issues. Marine environments can contribute to connection problems over extended operating periods.
Replacement Cannot Be Accepted by the System
Compare the complete identification information of the original and replacement units. Differences in revision or configuration may require additional compatibility verification.
🧰 Preventive Maintenance
For vessels using compatible MAN B&W Alpha Lubricator equipment, maintaining a correctly identified spare SBU can reduce repair time during equipment failures.
Recommended practices include:
- Maintain an identification record for installed SBUs.
- Keep the complete part number and revision in the spare-parts database.
- Store spare electronic modules in suitable protective packaging.
- Protect unused modules from moisture and contamination.
- Use ESD-safe handling procedures.
- Periodically inspect stored marine automation spares.
- Record every replacement in the vessel maintenance history.
❓ FAQ
Q1: What is MAN Diesel & Turbo 3157168-7?
It is an SBU Switch Board Unit used in compatible MAN B&W marine engine automation applications.
Q2: What is the SBU designation?
The part is identified as SBU-0240-C.
Q3: What is 1142355-6?
1142355-6 is an associated part number for the 3157168-7 SBU configuration.
Q4: Is 3157168-7 related to an Alpha Lubricator?
Yes. Marine spare-parts references identify the unit as an Alpha Lubricator SBU.
Q5: Can this SBU be installed on any MAN B&W engine?
No. Compatibility depends on the specific engine and installed control-system configuration.
Q6: What should be checked before purchase?
Check the complete part number, SBU designation, associated part number, revision, serial number, and existing system configuration.
Q7: Can a used module be used as a spare?
A used module may be suitable when its condition and configuration are properly verified. Testing before installation is recommended.
Q8: Why is revision information important?
Different revisions may have different hardware or application compatibility. Matching the installed configuration reduces replacement risk.
📦 10 Related MAN B&W / MAN Diesel & Turbo Spare Parts
- MAN Diesel & Turbo 3157167-5 – MCU Module
- MAN Diesel & Turbo 1211636-9 – BCU Module
- MAN Diesel & Turbo 3157169-9 – BCU Module
- MAN Diesel & Turbo 1142354-4 – MBD PCB / Backup Control Unit
- MAN Diesel & Turbo 1881610-7 – Master Control Unit
- MAN B&W SBU-0240-C – Switch Board Unit
- MAN B&W Alpha Lubricator BCU – Backup Control Unit
- MAN B&W Alpha Lubricator MCU – Main Control Unit
- MAN B&W AVM-M30-B1 – Axial Vibration Monitor
- MAN B&W PMI Controller 1737008-9 – Engine Performance Monitoring Controller
🚢 Marine Automation Spare-Part Summary
The MAN DIESEL & TURBO 3157168-7 SBU Switch Board Unit is a specialized marine automation spare associated with the MAN B&W SBU-0240-C / 1142355-6 configuration and Alpha Lubricator control applications.
For replacement projects, vessel maintenance, shipyard service, and marine automation spare-parts inventory, the most important selection criteria are the exact part number, module designation, revision, serial information, and compatibility with the installed engine-control configuration.
