Specifications

Document No. DER05026 ROTATING ASSEMBLY REMOVAL & INSTALLATION
Page 2 of 3 Effective Date 28 Mar 08
REMOVAL (CONT’D)
9. Lower rotating assembly onto a cradle that is capable of supporting its weight.
10. Disassemble rotating assembly to the extent necessary for inspection, repair, and parts
replacement.
Figure 5026-1 Bearing Pillow Block
CLEANING, INSPECTION, AND REPAIR
Clean, inspect, and repair rotating assembly as follows:
1. Wash mud and debris from conveyor and interior and exterior of bowl assembly, and blow dry
with filtered compressed air. Remove any corrosion to facilitate inspection.
2. If conveyor was removed, inspect conveyor for distorted or gouged flights, burrs, or other
obvious damage. Blend out any minor surface defects. Replace conveyor if obviously
deformed or it has serious defects that render it unserviceable.
3. If conveyor was removed, inspect wear inserts for obvious wear. Replace inserts if found
highly damaged. To help preserve dynamic balance, always replace inserts in pairs that are
opposite to each other.
4. Inspect drive sleeve and V-ring at gearbox end of conveyor for gouges, distortion, or obvious
signs of wear. Replace part(s) if required.
5. Inspect solids discharge wear inserts and weir plates on head wall of bowl assembly for
cracks, fractures, or other damage, and replace if obviously damaged.
6. Inspect bowl interior and exterior for gouges, scratches, or other damage that may affect
performance. Blend out minor defects; replace bowl if damage cannot be repaired.