Place 2pcs upper weight stack cover bracket(91#) along the guide rods and then place the upper
frame(12#) onto the front vertical frame(3#) and guide rods(22#).
Secure the end of the upper frame with the guide rod and upper weight stack cover bracket together
with the 2pcs M10*50 Allen bolt (34#),2pcs M10*25 Allen bolt (37#) and 4pcs φ10 washers(44#).
(44#).
Secure the upper frame with the guide rod together with the 2pcs M10*70 Carriage bolt (27#),1pc
bracket(24#),2pcs φ10 washers(44#)and 2pcs M10 aircraft nut(46#).
Note:□50X1.5 End cap(56#),
0X40X1.5 End cap (61#)were fixed in the factory already。