DTBS009 FTI Drum Pump Tube Exploded View Diagram Repair Parts Breakdown. Finish Thompson TBS-40 TB Series Stainless Steel Sealed, Mid-Performance Economy Barrel Pumps PDF Manual. Motor, Coupling Insert, Coupling Half, Bearing, Seal, Intake Tube Assembly. Impeller, Spacer Set, Shaft, Compressor, Screw, Lockwasher.