Shaft and bearings inspection and repair
Do not immerse parts in solvent since bearing surfaces and other highly machined parts could be
damaged if they are banged together.
Cleaning. Thoroughly clean all parts in a suitable solvent and dry thoroughly.
Inspection. Inspect all parts for signs of excessive wear as follows:
Inspect male and female splined surfaces for wear, chipped teeth and other damage.
Inspect gear teeth for excessive wear, chipped teeth and other damage.
Inspect shaft and pillow blocks for signs of scoring.
Inspect bearings and bearing retainers for signs of damage.
Drum Drive Shaft Repair.
Light scoring of shaft bearing surfaces and pillow block surfaces can be polished out with 400 grit or
finer emery cloth.
Repair other defective parts by replacement.
Shaft and bearings reassembly and installation
During reassembly, lubricate bearings and splined surfaces to reduce friction. Hand pack
bearings with lubricant before installation. Bearings may be heated to a maximum of 225°F in an
oil bath or oven to ease installation. (Ensure bearings are not in contact with a heated surface
such as the bottom of the pan.) After installation of the lube fittings lubricate the bearings before
installing final seals and retainers.
Assemble and install drum drive assembly in reverse sequence of disassembly procedure.
Lubricate threads of pillow block bolts and torque to 110-115 lb ft during installation.