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REPLACE ELECTRIC MOTOR OF IHI DECK CRANE
 
The vessel is equipped with 4 IHI Wuhan deck cranes, SWL 36T x 28m radius, type SS360200-280B. Crane 2 suffered a complete failure and burn-out of the main electric motor. A new E-motor was procured and had to be changed out at Vung Tau anchorage in Vietnam.

The crane type SS360200-280B is a slim type deck crane, there is no space in the crane aggregate room to remove the E-motor, neither through the maintenance hatch or through the crane base column. The Owner intended to flame cut a hole into the crane body in order to remove the motor.
However, the ALATAS specialist engineer proposed a removal of the electric motor through the operator cabin opening. This required the electrical disconnecting and complete removal of the crane cab. But it allowed the change out of the electric motor without cutting and damaging the crane main structure.

ALATAS supplied a Senior IHI crane engineer, technicians and rigging gear and carried out the replacement of the electric motor in a speedy, professional and safe manner.

The damaged E-Motor with the burnt windings will be sent to Alatas electric crane repair shop for rewinding, balancing and varnishing.

 

Electric Motor Replacement
Electric Motor Replacement

Removed all wires and chain block secure to crane column

All electric cables to operator cabin were marked and removed

   
Electric Motor Replacement
Electric Motor Replacement

Crane two brought into parking position by emergency lowering procedure

Erected staging on Crane 2, so as to prepare for the removal of the operator cabin

   
Electric Motor Replacement
Electric Motor Replacement

Removal of Crane two hook block with Crane three

Removed cabin of Crane two and placed on deck

   
Electric Motor Replacement
Electric Motor Replacement
Removing of burned out electric motor from crane two

Removal of chain couplings from old E-motor

   
Electric Motor Replacement
Electric Motor Replacement
Heating up of chain coupling and install onto shaft of
new electric motor.

Installing new motor to crane sitting of Crane 2 and tightened all foundation bolts

   
Electric Motor Replacement
Electric Motor Replacement
Lifting operator cabin back to sitting of Crane two

Cables removal at switch cabinet of Crane two

   
Electric Motor Replacement
Electric Motor Replacement
Crane two slew motor is leaking, renewed shaft seal kit

Very dirty oil cooler and choke with dust

   
Electric Motor Replacement
Electric Motor Replacement
Testing Crane two with grabbing of klinker

Successful function testing of crane two after main electric motor change out

   
 
 
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