Tractor cabin and manufacturing method therefor

A method for assembling a transparent front panel arrangement in a tractor cab wherein the cab has frame members defining upper and lower trapezoidal areas and elastic holding elements are provided for holding said front panel arrangement to said frame members, comprising providing first and second trapezoidal transparent panels with substantially horizontal long sides, urging said first panel upwardly into said upper area to engage the elastic holding elements adjacent said frame members, with the long side thereof facing downwardly, urging said second panel downwardly into said lower area to engage the elastic holding elements adjacent said frame members, with the long side thereof facing upwardly, then holding said panels with their long sides vertically spaced apart a distance substantially equal to the thickness of the panels while inserting a transparent adhesive in the space between said long edges, and continuing to hold said panels apart until said adhesive has set.