Method for mounting a repair crane on to a power generating windmill comprises using windmill nacelle mounted lighter crane to lift and temporary position a heavier repair crane onto permanent foundations on the nacelle

摘要

A method for mounting a repair crane on a power generating windmill has the steps of; 1) using a permanently windmill nacelle mounted light crane stressed to raise a heavier repair crane(18)and temporary positioning it on permanent foundations provided on nacelle (6) 2) after the repair or replacement work has been completed using the light crane to remove the repair crane from the windmill - Preferred features;If required the repair crane can by partially dismantled before being hoisted up to and from the nacelle