Situation on site:
- Submersible gearbox with integrated motor needs overhaul
Extent of works carried out by MGH:
- Complete disassembly of the gearbox and motor
- Cleaning and visual inspection of the parts
- Checking the fit of shafts, bores and gears
- Findings:
o The sealing ring of the low speed shaft is indented
o The sealing surface of the high speed shaft is indented
o Gears of the intermediate set have pitting
- Replacing all oil seals
- Replacing all bearings
- Repairing the indented sealing surface
- Replacing the sealing ring
- Replacing the damaged gears
- Assembly of the drive unit
- Measuring the axial bearing clearance
- Performing a run test until the temperature has stabilized
- Spray painting









