| 摘要 |
An arrangement for lubricating the bearing surfaces between a tool of a hydraulic impact device and the impact device, the arrangement comprising a supply pump and a channel for supplying lubricant. The arrangement comprises at least two separate channels ( 19, 20 ), and both channels comprise a separate dosing pump ( 17, 18 ) which supply predetermined amounts of lubricant between the bearing surfaces when the impact device starts.
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