Dear members,
I recently had issues with kobelco sk 130 - 8
the unit main pump tends to fail badly ,the piston shoes were lifted,causing major damage to the related components,this happened repetitively in a series of short period up to 4 times,the control valve had been checked for any anomaly or failure ,visually there wasn't any serious issue from it ,only one spool that had unsmooth stroke,but with a little fine abrasive paper it was gone,the main pump case pressure had also been monitored using pressure gauge,it indicated a normal value.
When disassembled the visual damage seen was in the cyinder and pistons,the pistons jammed in the bore and the shoes was lifted
Do anyone know what issues i am encountering?hope you all can help solving it,thanks
I recently had issues with kobelco sk 130 - 8
the unit main pump tends to fail badly ,the piston shoes were lifted,causing major damage to the related components,this happened repetitively in a series of short period up to 4 times,the control valve had been checked for any anomaly or failure ,visually there wasn't any serious issue from it ,only one spool that had unsmooth stroke,but with a little fine abrasive paper it was gone,the main pump case pressure had also been monitored using pressure gauge,it indicated a normal value.
When disassembled the visual damage seen was in the cyinder and pistons,the pistons jammed in the bore and the shoes was lifted
Do anyone know what issues i am encountering?hope you all can help solving it,thanks
kobelco sk 130-8 main pump failure
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