The crane was commissioned in the plant some 15 yrs back. The cranes is being used for lifting hot metal (iron) from furnace to Pig casting machine since commissioning. Regular maintenance is being done on the same.
Maybe. Your best bet is to consult the crane manufacturer to see what upgrades are needed. There are a variety of crane engineering firms that can also evaluate the crane and suggest any needed changes. I would get several quotes before deciding.
no you have to asses the related struturals.