FOERFARANDE FOER SMOERJNING AV EN BERGBORRMASKIN OCH MEDELST FOERFARANDET SMOERJD BERGBORRANORDNING

摘要

Oil is supplied to the compressed air supply hose for a jack leg drill by means of a conventional in-line oiler. A substantial part of the oil is separated from the drive air by means of a wall flow separator at the drill and conveyed through internal passages in the drill to various parts to be lubricated such as a chuck and a ratchet mechanism for rotating the chuck.