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Supply & change-out of Slewing Bearings on 4-Rope Grab Cranes on a Transshipper

 

The Transshipper Barge is equipped with 2 units heavy Duty Tsuji 4-rope cranes, type BEIS-3526 (35Tx26M) with fully electric drive system, with a Fuji Electric, FRENIC 5000VG7S Inverter Drive.

The cranes had amassed more than 10,000 operating hours and certain wear did show on the slewing bearing. The wear was monitored by regular axial clearance measurements, whilst new slewing bearings where procured & supplied by ALATAS Singapore Pte Ltd.

The bearing change-out was planned with the customer and carried out at a lay-by berth, under the supervision of a Sr. ALATAS Crane Engineer and a ALATAS Fuji Inverter Drive Specialist Engineer

 

 

       
2 units heavy duty 4-rope cranes
ALATAS Engineer torquing Slewing Bearing Bolts
ALATAS Supplied slewing bearing
Crane 1 Lifting down process
       
Crane 1 Lifting down process
Crane 1 Lifting down process
Laser measurement of base column flange in process
Crane 1 Lifting down process
       
       
Crane 2 Lifting down process
Crane 2 Lifting up process
Crane 2 Slewing bearing procedure
Crane 2 Slewing bearing procedure
       
Crane 2 Slewing bearing procedure
Crane #1 without wire ropes
Crane
Crane
       
Crane
Final Crane Overload Test
Laser Flatness Check, Base Column Flange Crane
Crane
       

 

 

 
 
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