Place the Upper Frame(2#) onto the Front Vertical Frame(3#) and 2pcs Guide Rod(18#), Align the holes
and secure them with 2pcs M10*20 Allen Bolt (63#),2pcs
φ
10 washers(69#) ,2pcs M10*70 Carriage
bolt(58#),1 pc bracket(37#),2pcs φ10 washers(69#),2pcs M10 Aircraft nuts(68#) .