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. | The replacement diesel engine close to loading station on offshore platform in the Dutch sector of the North Sea. All pictures © JD Neuhaus. |
J D NEUHAUS HOISTS FACILITATE CRANE REPAIRS
Picture above: Typical Mini and Profi hoists from the J D Neuhaus range, similar to those used for the deck crane engine replacement on an offshore platform + + + Picture below: 40 metre lift of the replacement diesel engine utilising a J D Neuhaus air operated hoist.
With the replacement engine and its lifting
equipment being transported by a supply vessel (16 hours sea time),
provision was required for a further primary lifting unit to handle the
Profi 2 TI hoist and its 40 metres drop of twin chains utilised for the
major lifting operation. Once again, equipment that was light enough to be
delivered to site by helicopter was selected from the Gerritsen rental
fleet. This was a J D Neuhaus air operated Mini hoist, providing 980kg
lift capacity to handle the larger and more powerful Profi hoist and its
40 metre chains. The Mini hoist plus an appropriate beam clamp for the
hoist suspension support was helicoptered in (30 minutes air time) and
mounted ready for the primary lift operation of the Profi hoist and chains
utilising a big bag container. The more powerful Profi unit was then used
to replace the Mini hoist, utilising the same beam clamp installation. The
Profi hoist with a 2 tonne lifting capacity was then utilised to undertake
the more difficult lift and location of the replacement diesel engine
utilising a sling assembly. The work was undertaken with one rig personnel
for safety inspection, together with one rigger and three scaffolders.
*) Gerritsen On- &
Offshore Services BV are the authorised Dutch Sole Importer of JDN
products.
Source: J.D. Neuhau GmbH & Co. KG -
www.jdngroup.com
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