Upgrade Lifting Frame Trencher

Modifications performed to optimize the use of this lifting frame of a subsea Trencher. The modifications included:
Latching bucket buffer ring (interface with snubber)

  • Disassembly hydraulic cylinders, hydraulic hoses, sensors and valvepack
  • Welding new catching frame according attached drawing (modified latch bucket assembly)
  • Filling plates for accurate adjustments with Snubber
  • Rubber buffer ring
  • Weld inspections before and after load testing
  • Sandblasting and 3 layer marine coating of entire latching bucket
  • Assembly of hydraulic cylinders, hydraulic hoses, sensors and valvepack
  • Documentation

Maintenance of four latches

  • Removing latches, shafts, springs
  • Perform inspection and maintenance
  • Replace items when required and in consultation with the client
  • Assembly of refurbished latches

After the modifications the lifting frame is load tested.
With a test load of almost 130 ton.

Year of construction 2018