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Wolff Tower Crane Hoist Drive Repair

Wolff tower crane

(January 2010)
NDC have completed repairs to an 88 Amp Reliance Inverter used as a hoist drive on a Wolff Tower Crane.

The drive had been subjected to excess moisture and had sustained damage to both the MAC and PAC PCBs. NDCs procedure is to initially remove any contamination and then systematically work through the various sections of the drive, repairing and refurbishing as necessary. Repairs were carried out to the PCBs and the inrush resistors were also replaced. Once completed, the drive was tested in line with Manufacturer standards relevant to the application. In this case, extensive load testing to full capacity to ensure full operation.


If you have these inverters fitted to your fleet, call your local NDC Service Centre to discuss support.


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