SCOPE OF WORK
I. Dewater works
- Remove and install dosing frames – Mobile crane will be arranged by contractor.
- Install and remove stop logs – Mobile crane will be arranged by contractor.
- Provide manpower to handle the pumps for dewater works.
- Remove all rubbish, mud, oysters and other waste in the pit.
- Solve problem whole the time of service.
- Repair sluice gates guiders and the gate to make sure they open and close smoothly without leakage.
- Do all repair and repaint for access ladders.
- Inspect all the structure with picture reports.
II. Band screen overhaul
Ilk Band screen overhaul
- Check any malfunctions before do the overhaul works, such as: steel frames, covers, head shaft and sprockets.
- Check steel frame, repair the main chain guider.
- Repair defect parts and remove rusty from steel frame.
- Furbish all surfaces of steel frame before painting with premier coat and top coat. Specification of painting is suitable for blackish water – Marine coat — International Paint.
- Repaint all surfaces of steel structures by marine epoxy paint (Contractor will provide paint).
- Refurbishment of mesh panel frames, elevators, mesh panel.
- Repair the jet pipe DN80 and clean all jets.
- Change new bearings for the head shaft.
- Replace the old chains by the new chains (Spare parts will be given by investor).
- Replace head shaft and sprocket for 10PAA12 (Spare parts will be given by investor).
- Fix all related parts onto the chain during installation.
- Adjust the whole band screen to make them parallel condition.
- Repair and repaint the access leaders.
- Change lube oil for drive gear boxes — (Castrol SP1000 and Castrol SP220 will be given by investor)
- Record all problems happened during the work.
- The contractor provides tools and consumables
- The contractor provides method statement, risk assessment, man-power certificate and man-power
