The large 3000 cfm Vacuum Power Pack driven by a large Big Cam Cummins motor decided to take a rest. After working hard for days in the summer heat the control valve assembly started leaking badly. Little notice was taken at the start of the leak , in fact some hoped that it would just go away. This assembly controls the oil flow to the large Roots Vacuum Blower seen in the photo below. Drive by very high oil pressures and with oil temperature reaching the top end of the scale we were forced to shut down and repair the valve block. Confined to a 6m shipping contained this job was cramped , awkward , and very sweaty. The Rexroth hydraulic pumps and there associated parts are a pleasure to work on. With the faulty seals replaced and a good service all was up and going again.
Lesson learned : A stitch in time saves nine. Yes had we been informed when the leak started much expense and time could have been spared.
Please click on any of the photo's to enlarge.
Power pack with Cummins Big Cam motor crambed into 6m shipping container.
Rexroth hydraulic pumps - two banks of two pumps each = 4 pumps.
3000 cfm Roots vacuum blower - great stuff!
The faulty valve bank that created great expense.
All that was needed , these o rings and much time could have been saved.
