Repaired MV HANJIN PHILADELPHIA Leaves Changxing Shipyard (China)

Last week MV HANJIN PHILADELPHIA, owned by Reederei F. Laeisz, completed her repair in Changxing Shipyard and smoothly sailed from berth No. 13.

Her dimensions are 282.12M*32.20M*21.8M. This time the main jobs included:

1) 44 pcs of hatch covers were removed ashore and partly sand blasted.

2) Steel renewal on hatch covers and rubber renewal for No 1,2 cargo hold.

3) Approximately 1200 pcs of lubripads were removed, measured, cleaned, refitted and partly renewed.

4) No. 1-7 hatch coamings and tank top plates were derusted and coated.

5) Approximately 100m2 of shell plate were renewed iwo ER HFO tank and No. 2,7 WBTs. Cell guides in No 1-7 cargo holds were partly renewed.

Considering the tight repair schedule, Production Department arranged Hull Workshop to immediately remove the hatch covers ashore upon her arrival and managed to complete within 6 hours. Around 22:00, shifting was started for docking. Workers were already standing by on the nearby barge when the vessel compeltely sat on the block. After the hull got dry, HPFW washing was carried out immediately and passed the inspection on the first attempt. In order to secure the film thickness of the first coat, Paiting Workshop, Production Department carried out the measurement of wet film thickness once the coating was completed on 20:00 PM.

Results proved an excellent compliance for the requiments of paint specifications. During the following coats, workshops strictly followed the procedures and finally delievered an outstanding job which won the praise of the German superintendents. Regarding the 1200 pcs of lubripads, heavy rust made it quite difficult for removal and required a large quantity of workers. As stated by the superintendent, previously it ever took other shipyards one week to remove the same quantity of lubripads. To remove the lubripads, four teams were deployed onboard and worked over night to catch an early completion time.

New method was initiated and tested by the QC and finaly only one day and half was taken to complete the removal. Close to the end of the repair, new steel job was raised iwo NO.5 port. Tank cleaning was carried out at night once the permission were issued by authority. As soon as the steel renewal area was located after pressure test on next morning, Hull Workshop arranged to commence the replacing. It only took 10 hours to complete the job and the superintendent was impressed by shipyard’s quick response and high efficiency.

Another thing is also worth mentioning. Previously the large amount of cleaning work after sand blasting of hatch coaming made it hard to meet the requirement of ship owners and maybe resulted in owner’s complains. This time the owner adopted hydro blasting for the hatch coaming. Painting Department coordinated their worker team with the subcontractors to perform a sound hydro derusting and apply the rust transformation paint as primer coating. It reduced the cleaning work and saved time for sand blasting of tank top plates in cargo holds.

Under attention of the divison leaders, the repair team worked continuously day and night in common efforts to bring ahead the sailing date. A good feed back was expressed by ship owner as well as his will for next cooperation.

[mappress]

Source: csgcic, September 7, 2011