Advantages:The advantages of the Pilgrim method are; that engine torque maybe transmitted without loading the key, where fitted.Also thrust produced is transmitted through a hydraulically pressurized nitrile tyre, which is applied to the propeller to force it onto the shaft. procedure- mounting, the surface must be dry
and degreased.calculations must be done for getting the required push hydraulic pressure at right temperature. the hub movement must be properly measured using a dial gauge. The pilgrim nut has an internal rubber tube which is inflated by hydraulic pressure.forces a steel loading ring into the hub. if outward movement of ring exceeds more than 1/3rd of ring, it may rupture. the hydraulic fluid in the ring is flushed by turning the nut. the propeller is removed by using the nut in the reverse direction.
and degreased.calculations must be done for getting the required push hydraulic pressure at right temperature. the hub movement must be properly measured using a dial gauge. The pilgrim nut has an internal rubber tube which is inflated by hydraulic pressure.forces a steel loading ring into the hub. if outward movement of ring exceeds more than 1/3rd of ring, it may rupture. the hydraulic fluid in the ring is flushed by turning the nut. the propeller is removed by using the nut in the reverse direction.
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