REPLACEMENT OF OIL SEALS OF GEAR BOXES

1.0 PURPOSE:
    
    To describe a  standard operating procedure for replacement  of oil seals  of gear boxes.
    
2.0    SCOPE:
    
    The standard operating procedure describes in detail the method of replacing oil seals of gear boxes belongs to Process/Utilities/Laboratory equipments.
    
3.0    RESPONSIBILITY:
    
    The  responsibility  of replacing the oil seals of  gear  boxes lies  with  the  staff of rank not lower  than  junior  utility operator of maintenance department.
    
    The responsibility of preparing, reviewing and approving the standard operating  procedure lies with the  Manager  -  Maintenance,  Head of Production and Head of QAD respectively.
    
4.0    METHOD:
    
4.1    Isolate the equipment electrically.
    
4.2    Remove gear box from the equipment.
    
4.3    Drain the Lubricating oil from gear box into the waste oil collection tray/container and dispose the same into waste oil barrel.
    
4.4    Remove  the  coupling/pulley   from the gear  box  as  per  the  XXXXXXXX( INTERNAL SOP)

    
4.5    Remove the oil seal covers.
4.6    Remove  the  damaged  oil seal from the oil  seal  cover  using metallic hook.
    
4.7    Replace the  damaged oil seals with new oil seals in the respective places.
    
4.8    Fix the oil seal covers.
    
4.9    Open the gear box top cover and check the condition of worm gear and worm shaft. If the gear shaft worm out, gear box shall be sent to the out side agency for replacement of the worm out parts.
    
4.10    If the Gear/Worm condition satisfactory, fill the Lubricating oil in the gear box Enklo-320 of IOC/BP/- make or equivalent grade to the just above the half level in the level indicator
    
4.11    Check for oil seal leakages by rotating the shaft manually and check for leakage through the oil seal.
    
4.12    If the oil leaking from the seals repeat the steps 4.5 to 4.7.
    
4.13    If  the  oil  is not leaking, fix the  coupling/pulley  in  its place.
    
4.14    Fix the gear box to the equipment.
    
4.15    Restore the power supply to the equipment.
    
4.16    Record the replacement data in the equipment history card. 
    
5.0    RECORDING:
    
    The responsibility of recording the replacement of oil seals in the equipment history card lies with the staff of rank not lower than the Maintenance supervisor.    

        

Gear boxes, engineering,