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Donaldson Company, Inc.
Once the collector has reached the end of operational life it will need to be decommissioned.
During decommissioning, there is potential for exposure to the dust in the collector. Most dusts present safety and
health hazards that require precautions. Wear eye, respiratory, head, and other protection equipment suitable for the
type of dust when performing any decommissioning activities.
LOCK-OUT all energy sources prior to performing any decommissioning activities on the equipment.
Electrical service must be performed by a qualified electrician.
Disconnection of ducts must be performed by a qualified tinsmith or contractor.
1. Follow the typical shut-down sequence steps located in the operation section to remove as much contaminant from collector
as possible.
2. Lock-Out all energy sources.
3.
Remove all filters from the collector and dispose of in a suitable fashion for the dust in the collector. (See Filter Replacement
for removal instructions).
4. Disconnect electrical power from the collector and remove any associated conduit or hardware from the exterior of the
collector.
5. Disconnect all ducts from the collector.
6.
Shut off and remove fire mitigation system.
7. Proceed to disassemble collector by removing sub-assemblies in the reverse order of the steps given in Appendix A.
Note: The clean-air plenum, dirty-air plenum, tubesheet, H-frame and cleaning assembly may be removed in separate steps
instead of as one unit.
8.
Once all cross-bracing has been taken down, remove anchor bolts and lower leg pack columns.
9. Secure all collector components to a suitable transport carrier and transport to a disposal site suitable for the dust in the
collector.
Decommissioning Collector
