Maintenance 5 5.5. Periodical replacement of safety-critical parts To ensure trouble-free operation of the machine, the user of the machine must always carry out periodic maintenance. In addition, to maintain safety standards, the user should also periodically replace all safety related parts, which are particularly closely connected to safety and fire prevention. The standard service life under normal conditions should not exceed 6 years. Hoses must be replaced as soon as the following damage is noticeable:
damage to the outer layer through to the intermediate layer, brittleness in the outer layer, distortions in pressurised or unpressurised state not conforming with the original shape of the installed hose, leakages, damage to the hose fittings or to the connection between fittings and hose, storage damage (the shelf life of the hose should not exceed 2 years). When replacing the hoses, always replace the O-rings, gaskets, and other such parts at the same time. Ask your Komatsu distributor to replace the safety critical parts. WA90-5 – VEAM270100 5-23