Our service engineers managed to adjust a main propulsion shaft-line. Check alignment on board with use of own fabricated pointers. after alignment check we found out that there is a mis-alignment. Our service engineers dis-assembled complete shaft-line and transported to our workshop. In our workshop we changed all bearings and assembled back on board. After machining the steel shims and drilling new locking pins we completed the adjustment with a correct alignment. After completion our engineers joined the vessel for a trail.