A Malaysian paper mill requested Off-Highway Powertrain Services (OHP Services) to review and improve the efficiency and effectiveness of their in-house maintenance processes with a special focus on cardan shafts. OHP Services proposed using Hot Spot Analysis to document the existing status of the powertrains. This analysis identified that the cardan shafts were in a high-wear condition. This led to in-depth, detailed discussions with the customer regarding their maintenance and spares stocking processes, it was also identified where the maintenance processes were not optimised, enabling solutions and improvements to be implemented.
Because Hot Spot Analysis can be performed on a running machine, corrective actions can be planned well in advance of a scheduled maintenance shutdown; in this case saving approximately 26% of the maintenance down time.
Previously, due to the paper mills geographical location, time was lost for shipment of spare parts and subsequent repairs. There are no local cardan shaft service centers, which required the customer to stock additional components and spare parts on-site. Now components requiring replacement are identified before the scheduled shutdown, stock planning can be managed in advance, less on-site stock is needed and capital costs are saved.