Hy- pro Saves Hitachi Excavator User

Published Friday 22 Sep, 2006 by Peter Woodford

The Problem - Mobile mining equipment hydraulic systems are typically exposed to very high solid particle ingression rates. A mine using the Hitachi EX2500-1 excavator was experiencing premature component failure due to contamination

The Problem: Mobile mining equipment hydraulic systems are typically exposed to very high solid particle ingression rates. A mine using the Hitachi EX2500-1 excavator was experiencing premature component failure due to contamination. In the first 27 months of operation costs included 3 variable speed piston pump replacements $34,000 each), 3 swing motor replacements, 2 drive motor replacements,
numerous servo valve repairs or replacements, 42 hydraulic hose related problems, and 16 instances of contamination sensors requiring cleaning.

Other associated costs included excessive unplanned equipment downtime and unplanned maintenance costs.The machine was also not operating reliably and approaching the end of the warranty period.

The Solution: Read on to see how Hy- pro saved Hitachi / Mine Site