Winch overhaul on AHC Crane completed in Kristiansand, Norway
The offshore Diving Support vessel is equipped with TTS and Huisman manufactured cranes.
The Huisman active heave compensated (AHC) knuckle boom crane, developed a hosing problem, requiring trouble shooting onsite by ALATAS specialist AHC crane engineers.
The aux. hoist winch, with a wire rope capacity of dia. 36 mm X 1575 meter, Make Zollern type ZHP4.36-EG, had developed a leakage of the planetary gearbox.
This required the winch to be removed for repairs at ALATAS Norway's Workshop, which specializes in Gearbox- & hydraulic repairs.
The complete winch was prepared for being lifted down from the crane for this major winch overhaul. ALATAS approach was to remove the four winch support pins and replacing them with dummy pins so it could easily come off.
After the winch arrived at the ALATAS Norway workshop, the hydraulic motor and primary brake was lifted off, and the winch was further stripped down, inspected and then re built with new, ALATAS supplied planetary gear parts.
ALATAS multidiscipline service engineer, also a senior crane inspector with competent person approval B-1 from the Norwegian Maritime Authority performed overload test as per NMA B-1 requirements after brakes was adjusted and winch fully commissioned.
The job was performed well within budget cost and on time.
ALATAS supervised lift off, Huisman aux hoist zollern winch complete
All hydraulic connections, hoses, pipes and parts disconnected, blind flanged and secured
Spreader beam was used to safely lift the Husman aux hoist zollern winch down to the trailer
The complete winch arriving at the workshop, for being totally overhauled by ALATAS AHC crane engineers