The spindle head and the thrust unit is an integral structure, because the water has been lifted into the pit shaft in advance, in the main shaft of the generator should be confirmed before hangingRecognize water shaft top flange height should be higher than the design elevation of 5 mm or so (as shown below: water shaft and the main shaft of the generator shaft coupling flangeSurface design installation elevation for EL:89.600m, live in water shaft hanging into the machine pit in the lower part of the wheel into the adjustment plate water shaftFlange surface elevation adjustment to EL:89.605m). If water shaft top flange elevation below the design installation height, so generatorMain crane into thrust head hanging on the mirror plate and between the two shaft flange gap, the shaft of the generator and turbine shaft will be unable to connect, soIn the twelfth chapter, the main shaft can not be carried out before the rotor is hoisted into the front of the rotor.
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