Maintanance step: Disassembly of Rotor and Gear Turbine

Disassembly of Rotor and Gear Turbine

1. Remove thermometer of the bearings.
2. Remove the steam chest with the emergency stop and governor valve.
3. Unbolt the turbine casing cover, then remove it lifting horizontally far enough to clear the rotor blades in order to prevent the possibility of damage to the blades.
4. Remove the gland rings and garter springs.
5. Remove the stationary blade retainer of the casing base.
6. Unbolt the gear cover.
7. Remove the main oil pump body with governor and tachometer.
8. Remove the bolts of the thrust cover. (only front half)
9. Remove the gear cover lifting horizontally.
10. Fit the eye bolt to the upper part of the pinion shaft and lift slightly not to incline when the bearing cover is removed.
11. Remove the oil seal ring of the pinion on the gear base.
12. Remove the bearing cover, bearings and thrust bearings of the pinion. Be careful not to fall front half of the thrust washer.
13. Draw out the turbine rotor horizontally. Be careful not to damage the blade.
14. Remove the coupling bolts between the gear and intermedite shaft.
15. Fit the eye nut after removing the nut of the oil pump drive gear and lift slightly the wheel shaft.
16. Remove the bearing covers and bearings of the wheel. Be careful not to fall front half of the thrust washer.
17. Draw out the gear horizontally. Be careful not to damage the gear.