Instrument used to take liner diameter measurements without removing the cylinder head or valve housing.
Usually, it will take a three-man team one full day to get liner diameter measurement from two cylinder liners. However, with the Chris-Marine Liner Diameter Measuring tool (LDM), the same operation can be done in three hours by one single operator. The LDM can be used for verifying cylinder wear and deformation prior to dry-docking. It can also be used to monitor cylinder wear and deformation on an engine, as a complement to regular scavenging port inspections.
Abnormal wear and deformation resulting from slow-steaming, new lube oils, or changed route are conveniently picked up by the LDM, thereby allowing for prompt countermeasures. The latest LDM-generation offers 13 hours of continuous user-time without intermediate recharging, which makes it even more user-friendly than before. Like previous versions, it can measure all 2-stroke engines with a bore from 500 to 980 mm, without removing the cylinder cover or exhaust valve housing.
The clover-leafing measurement feature allows the user to detect non-oval wear and deformation like:
The LDM is available for MAN B&W, Wartsila and Mitsubishi 2-stroke engines with a cylinder bore of 500 to 980 mm.
Video: How to use the Liner Diameter Measuring Instrument
Chris-Marine’s monitoring portfolio includes instruments to:
| Weight | Measuring unit: 3.6 kg, Additional equipment: 8 kg |
|---|---|
| Diameter measuring range | 2-stroke engines 500 - 980 mm liner diameters |
| Height measuring range | 0 - 4.0 m |
| Electric power supply | Battery operated, Charging equipment included |
| Normal measuring time | One cylinder liner (4 diameters / 10 levels) 1 hr |
