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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Cutting shaft of rope sheave
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fabricate A frame on top the sheaves
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Jacking out the shaft |
Pull out shaft by using hollow jack
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Damaged rope sheave with cut & stuck pin |
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New rope sheaves |
New rope sheaves |
Install back new shaft and sheaves
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New rope sheaves installed |
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