Cumberland 3600 / 5800 / 6800

Rotor bearing overheating indicates lubrication failure, contamination, or bearing wear. Check bearing temperature and regrease before condemning the bearing.

Poor regrind quality with fines, dust, or uneven particle size almost always means dull or improperly gapped rotor blades. Inspect the blade edge and gap setting before running more material.

Granulator motor overload trips are usually from large or thick feed pieces jamming the rotor, or from dull blades increasing cutting force. Clear the jam, check the blade gap, then reset the overload.