Underwater Propeller Change, USS Enterprise, CVN-65

Hydraulic Pilgrim Nuit

Even tho this picture is labeled "New Boss
Nut," it isn't. This photo shows the hydraulic "Pilgrim" Nut shown being
prepared for lowering to the worksite. This piece iof equipment is actually 2
halves with a rubber hydraulic bladder inside. The Pilgrim Nut is turned onto
the shaft threads and tightened against the Backing Plate. When pressure is
applied to the hydraulic lines, the Pilgrim Nut expands and forces the screw
off of the shaft. WebMaster Bruce
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