HEAVY LIFT DECK CRANES – ROPE SHEAVE REPAIR

ALATAS’ SERVICEMERCHANT SHIPPING
LOCATION  ASIA Korea, and Incheon
EQUIPMENT  350-TON HEAVY LIFT DECK CRANE
BRAND / MODELNMF DKII 350014.5/140032

Background:

The vessel is equipped with NMF Heavy Lift Cranes with a SWL of 350 tons. The massive main host shaves developed a bearing failure on one of the cranes, and on one rope sheave, the sheave hub was cracked. A sheave bearing changeout and a sheave repair became necessary.

Alatas Solution:

ALATAS is experienced in this kind of repair and, on request of the owner, mobilized a rope sheave repair specialist to attend to the sheave repair in South Korea.

Job scope:

• Arranged staging and rigging around the jib head
• Fabricated and installed A-frame to lift the wire ropes so they are out of the way
• Set up the jacking arrangement and jack out the sheave axle
• Utilized the adjacent crane and brought down the rope sheave assembly to the deck
• Carried out weld repairs on the cracked rope sheave hub
• Replaced rope sheave bearings utilizing a jacking and strongback arrangement
• Reassembled the repaired rope and shaved sheaves back onto the jib head

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