Hydraulic maintenance plan when vessel are reactivated from lay up condition.
Is it necessary to flush hydraulic system of hydraulic equipment when vessel is reactivated after lay-up condition?
According to Class Registry, there are 2 types of lay-up: hot lay-up and cold lay-up. In general, ,’Hot’ lay-up is considering a short term period – less than 12 month with reduced crew and some machinery in working conditions. ’Cold’ lay-up is a long period – more than 12 months with one or more watchmen and machinery shut down, only emergency generator.