Lubricant spraying system 1 for treatment of the inner surfaces of insertion and assembly aids with through-openings, for the inboxing of battery plate packs into suitably sized battery containers in a boxing station, characterized in that the lubricant spraying system is equipped with an exhaust system and consists of a spray station 1, a spray station 2, a mounting station arranged between these, between which an adjusting and sliding frame constructed as a hollow body is arranged so as to be movable in a horizontally directed manner, wherein the spray stations (2, 3) each being equipped with at least one stationarily positioned and pivotably arranged spray head for lubricant spraying, and at least one vertically directed infeed rod equipped with load cells and capable of vertical lifting movement being arranged on the movable upper part of the mounting station, and that there is a plurality of horizontal functional levels in the lubricant spraying system, wherein - on an upper feed level over a feed section, battery plate packs positioned, sorted and each fixed by a clamping jaw device can be moved by a linear drive into a middle position in the mounting station, - on an upper working level the spray heads are arranged in the spray station 1 and in the spray station 2, - on a middle working level, adjusting and sliding frames are arranged, designed in the form of at least two single frames or one double frame each with square inner openings each, longitudinally movable to and fro in coordinated cycle times between the spraying stations (2, 3) and the mounting station in a linear direction, and wherein - on a lower working level the lowered infeed rod is arranged, which abuts via the clamping jaw device on the end faces of the battery plate packs fixed thereby and, during the lowering insertion and sliding movement of which, passing through the adjusting and sliding frame arranged on the middle working level, is temporarily positioned into the empty battery containers transferred to and arranged on the lower working level and, after the battery plate packs have been boxed into the battery containers, can be moved back from this position to the middle working level. - on an upper feed level over a feed section, battery plate packs positioned, sorted and each fixed by a clamping jaw device can be moved by a linear drive into a middle position in the mounting station, - on an upper working level the spray heads are arranged in the spray station 1 and in the spray station 2, - on a middle working level, adjusting and sliding frames are arranged, designed in the form of at least two single frames or one double frame each with square inner openings each, longitudinally movable to and fro in coordinated cycle times between the spraying stations (2, 3) and the mounting station in a linear direction, and wherein - on a lower working level the lowered infeed rod is arranged, which abuts via the clamping jaw device on the end faces of the battery plate packs fixed thereby and, during the lowering insertion and sliding movement of which, passing through the adjusting and sliding frame arranged on the middle working level, is temporarily positioned into the empty battery containers transferred to and arranged on the lower working level and, after the battery plate packs have been boxed into the battery containers, can be moved back from this position to the middle working level.