| Reference | 3512/2011 |
| Date | 1/23/2011 |
| Location | Middle East |
| Scope | # Rehabilitation of rotor for terry turbine; Quantity:1 Type: GAF – 6 5- Stages Serial No.: 30539 Power: HP 1015 Speed: 3660 RPM 1- Inspection A- Visual inspection of wheels and important shaft areas. B- Dimensional chick at bearing and seal locations. C- Run – out check (radial & axial) of rotor. D- Complete disassembly of the rotor. E- Run – out check (radial & axial) of bare shaft. F- Non – destructive examination of the wheels, bare shaft and other parts. G- Check of the wheel locking collar for looseness on the shaft, both ends (h.p.end, in particular). H- All bores of wheels must be checked for concentricity. I- All blades and shroudbands should be checked by die – penetration for cracks. J- Keyway areas, journals & coupling surfaces must be chacked for cracks. K- Report on inspection work, including items needing repair but the existing work scope. 2- Repair Work 2-1 Shaft A- Picking up turning centers. B- Rolling polishing of journal bearing areas. C- Cleaning and burnishing of all other diameters. D- Hardchroming of sealing areas must be ground, resprayed and ground to size, as per drawing. E- Taking any suitable measure to fix the loseness of the wheel locking collar on the shaft (both ends). F- Check & repair to fit (if needed to) all wheels mounting areas, spaces between wheels as coupling hub area. G- Run – out check (radial & axial) of bare shaft after repair. 2-2 Wheels A- All wheels should be wetglass blasted. Bores must be protected against damages. B- Lost or / and damaged bucket shroudbands should be replaced. C- All cracked or / and damaged blades should be replaced. 3- Reassembly: A- Balancing of bare shaft to api tolerance. B- Before assembly, each wheel should be dynamically and statically balanced. C- Run – out check (radial & axial) of rotor. D- Final balancing E- Parts which are not within the tolerances size should be replaced, if needed to. F- Apply preservative for long term storage. |
| Bid Bond | 1% from submitted prices |
| Documents Price | ID 50 000 |
