TY JOUR TI EXCAVATOR GROUP LUBRICATION SYSTEM LUBRICATOR WITH PNEUMATIC DRIVE KW walking excavator KW lubrication of mechanical components KW lubricator KW group system KW pneumatic drive JO Modern Technologies and Scientific and Technological Progress AU Arsent'ev, O.V. AU Vlasenko, I.P. PY 2023 IS 2023 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»