Upper Superstructure
• It is always a challenge to size the crane. Should it be used to install the crusher, or to just service the components of the crusher? The main service hook doesn’t need to travel any further than the top of the crusher; beyond this point, slings can be added to lift anything at lower levels.
• Crane main hook speed should be slow, for inserting the main shaft.
• Always prepare a hook coverage plan to check all areas of crane service.
• Crane maintenance access should include stairs and a platform to service an overhead bridge crane.
• Choose the type of crane, overhead bridge, jib, gantry or mobile crane required to meet project requirements.
• A well-ventilated crusher control room is required.
• There must be a washroom, with or without potable water.
• The electrical room can be located at the upper or lower level; keep high-voltage runs short.
• The location of the dust collector should consider operating lengths of ductwork..
• Two main shaft supports are required, for the shaft in use and a spare. Storage must be provided for both. The spare shaft may be stored near the crusher or in the truck or maintenance shop.
• Provision may be required for a furnace and zincing, although most of today’s