How to replace the main drum bearing on a Clark's ccm125c pre 1999 cement mixer?

To replace the main drum bearing on a Clark's CCM125C cement mixer (pre-1999), first, disconnect the mixer from power and remove the drum by unscrewing the bolts that secure it to the frame. Once the drum is off, carefully extract the old bearing from its housing, using a bearing puller if necessary. Clean the bearing housing, then press or tap the new bearing into place, ensuring it is seated correctly. Finally, reassemble the drum onto the mixer, securing it with the bolts, and test the operation before use.