October 20 Bulletin

This MD6290 carousel assembly arrived from site presenting significant wear and tear on components requiring major rework and replacement.

Both the Retaining & Breakout Spiders required replacement.

The carousel index locking pin housing bore required re-sleeving.

Several cracks were found throughout the assembly requiring rework.

The Carousel Pivot Shaft was heavily scored about the Lower Pivot bearing journal and the HOBO Swing surface and found to be worn beyond acceptable tolerances. HOBO required re-sleeving and machining back to specification.

Pipe Rack Safety Chain End Clevis link was damaged requiring replacement.

Carousel Index Plate Locator Bores were worn, RiteDrill recommended to line bore and install hardened bushes.

Upper Carousel Axle Journal was worn below serviceable limits, requiring reclaiming and machining.

A slight bend was found in loader Pivot Shaft, which required straightening.

Upper Carousel Tray was buckled, requiring repairs.

Lastly upper and lower Carousel Swing Clevises were damaged requiring replacement.

Significant machining and fabrication work was required to bring this unit back to full working order – achieved on time and budget for our customer!

Reduced risk of major machine damage from failed shafts.

OEM Diverter Valves have small porting causing cavitation and low pump life.

DDA engineered a new K Port manifold and Diverter Valve that opens up these ports and eliminates the parasitic cavitation that caused early pump failures.

Supported by pump OEM.

Extending P11 pump life out to double prior hours.