REPAIR AND SERVICING Ӏ FEATURE
either verbally or even
via screen sharing with a highlighting function. Of course, you can also solve
some problems with a video call,” says Achim Spillmann, director of after-sales service at Wolffkran. “But Wolff Assist is more than just a conventional communications tool with video calling. It is a smart service tool that has been specifically tailored for the demands of a construction site and crane.” Wolff Assist offers voice
control in a variety of languages. Once the user has established an internet connection via a smartphone and registered the smart glasses on the network, it only takes a few voice commands to patch in an available service expert to the situation on the crane live and 24/7. “The application is able to
simultaneously translate spoken and written words into multiple languages,” explains Spillmann. “That is particularly noteworthy for international applications and also takes into account the wide range of nationalities at the construction sites. Needless to say, service technicians can also use the remote tool to connect to and help each other to reach a solution more quickly.” Wolffkran claims that by using
the system crane errors can be resolved up to 70% faster than via conventional methods, which means reduced idle time at the construction site and significantly reduced costs. A video of the system in action can be seen here:
www.youtube. com/watch?v=DMs2XDyvxqU
STUNNING TRANSFORMATION Away from remote or on-site repairs and maintenance, many crane manufacturers also have dedicated repair workshops. These are perfect for conducting
26 CRANES TODAY
larger, in-depth repair and refurb work. And having the crane go off to a workshop can suit some customers better, too. Take China Geo-Engineering
Corporation in Hong Kong, for example. It is currently having all its Liebherr duty cycle cranes overhauled at Liebherr’s Hong Kong factory under Liebherr’s 'Liebherr Transform' upgrade, modification and overhaul service. “About six years ago, I received
information from colleagues at Liebherr Hong Kong that they could take our cranes directly to their factory,” explains German Leung, general manager of the foundations department at China Geo-Engineering Corporation. “We highly appreciated this arrangement from Liebherr.” The incorporated repair and maintenance workshop at Liebherr (HKG) Limited added to the convenience of the project as all work could be carried out in one location. All processes relating to the dismantling, reconditioning and assembly of the machine were carried out by Liebherr’s own staff at its workshop. Indeed, under Liebherr
Transform the company’s experts take care of the entire planning and implementation of projects – from consultation, through to installation and technical support and service. It is available for crawler cranes (up to 400 t), deep foundation equipment, and duty cycle crawler cranes. Liebherr says that by using the latest technology and years of experience, its Transform service offers a combination of sustainability, smart technologies, maximum productivity and cost- effectiveness in one solution, enabling existing equipment to reach its full potential. “Basically all our machines – HS 873 HD, HS 883 HD and
HS 853 HD – are being sent to Liebherr one by one for overhaul so they will function like new,” says Leung. They are all over 20-years-old. One of the first machines to
undergo transformation was a 23-year-old Liebherr HS 873 HD duty cycle crawler crane. Even after 23 years’ service the HS 873 HD was nevertheless found to be structurally very good and so China Geo-Engineering Corporation decided to also incorporate an upgrade in the process. “We only needed modest
investments for an overhaul to get the machine working again. Consequently, we decided to upgrade its engine, from 480 kW to 605 kW and installed a second slewing gear,” Leung says. With this increase in engine
power, the strength and versatility of the HS 873 HD was greatly enhanced, making it fit for the construction sites of today. “This machine is completely
overhauled and functions as new,” Leung says, “so we are very satisfied with the overhaul programme Liebherr Transform.” A video of the overhaul can be
seen here:
www.youtube.com/ watch?v=MeyL8nzTURY In conclusion, the care and maintenance of cranes yields significant benefits for both owners and the environment, emphasising a practice that is not only economically prudent but also environmentally responsible. This has been further
enhanced through the use of new technologies backed by good old-fashioned know-how and engineering. By investing in these repair and maintenance services crane owners can achieve significant cost savings, continue high performance standards, and contribute to a more sustainable future.
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