DTTS028 FTI Drum Pump Tube Exploded View Diagram Repair Parts Breakdown. Finish Thompson TTS-48-FT TT Series Stainless Steel Sealed, Medium Viscosity/Flow Mid-Performance Barrel Pumps PDF Manual. Motor, Coupling Insert, Coupling Half, Bearing Assembly, Seal Assembly, Lock Washer. Screw, Intake Tube, Impeller, Compressor, Spacer Set, Shaft, Center & Bottom Bearing.