... lubricating-air pres-sure and the recommended lubri-cating oil.Certain moving parts of the rock drill arelubricated by means of oil-mixed compres-sed air. It is important that these parts re-ceive ... Recommendation Hydraulic oil·Use a mineral-base or synthetic (polyalpha-olefin or diester based) hydraulic oil with good anti-wear, anti-rust,anti-oxidation and foam inhibiting properties, ... level in the lubricating-oil container (1) once a shift. Observe a high standard of cle-anliness and fill with oil of the right quality (seepage 19). The lubricating-oil container holds 5litres.1....