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IHI deck crane sheave changeout
 

An IHI Mark II deck crane, model H254200-240, required a broken rope sheaves changeout...

ALATAS Singapore mobilized it's team to extract the sheave pin utilizing a strong-back and a push-pull jacking arrangement.

However, the rope sheave shaft was seized tight and in the end had to be cut.

No problem for ALATAS, as manufacturing drawings were on file and a new pin could be machined overnight.

 

IHI deck crane sheave changeout gallery:

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Click to expand
Click to expand

Staging on top crane #4

Cutting shaft of rope sheave

fabricate A frame on top the sheaves

     
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Click to expand
Click to expand
Jacking out the shaft

Pull out shaft by using hollow jack

Damaged rope sheave with cut & stuck pin
 
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Click to expand
Click to expand
New rope sheaves
New rope sheaves

Install back new shaft and sheaves

     
Click to expand
Click to expand
 
New rope sheaves installed

Crane 3 & 4

 
 

 

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