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OCP Jorf 2021 - RBS - Coggle Diagram
OCP Jorf 2021 - RBS
Overhaul
Remove insulation
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tools:
- jackhammer
- hammers
- chisels
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Measure rotor position in casing and radial labyrinth clearances (top, left and right) --> sheets
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Clean bottom casing and split-line, inspect <-- NDT on split-line
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Disassemble control valve actuator #
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Disassemble control valves #
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Disassemble, inspect and overhaul stop valve <-- NDT on valve cone; sheet
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Disassemble, inspect and overhaul control valves <-- NDT on valve cones; sheet
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Clean, measure and inspect axial bearing <-- NDT: PT and US; sheet
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Install dummy shaft and align inner casing. <-- use new radial bearings. Do not separate casing from pads, they are a set!
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Set rotor position and measure clearances (axial and radial bottom, left and right) <-- check with external reference; sheet
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Install SSS-clutch and turning gear, and align <-- max 0.03 TIR
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Measure DBSE, install spacer & check alignment <-- see Mitsui procedure
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Install dummy shaft, check run-out and remove <-- machine if runout not ok
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Install spare radial bearings and rotor <-- use both pads and carrier, they are a set!
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Control system upgrades
Oil supply upgrade
Install new pumps, check alignment (pump to motor) <--
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