Consider replacing the BEARING, CYLINDER ROLLER-MAIN LOWER OEM 109521 on a TDS11SA top drive if it shows signs of wear, noise, vibration, increased friction, overheating, or irregular operation.
For the 30178847 pipe handle gripper on the TDS11SA top drive, the inspection steps include visual inspection and functional inspection to ensure there is no damage or deformation, and test the clamping force to ensure safety and reliability.
