Attach the left & right upper fame (25#,26#) to the upper fame (2#)and secure them together with
2pcs M10X70 Carriage bolt (58#) ,2 pcsφ10 washer(69#) and 2pcs M10 Aircraft nuts(68#) .
Place the left & right upper fame (25#,26#) onto the short guide rod(19#) and rear vertical frame(32#)
separately. Carefully align the holes .
Place the chin up bar(28#) onto the left & right upper fame (25#,26#) and secure them with 4pcs
M10X70 Carriage bolt (58#) ,4 pcsφ10 washer(69#) and 4pcs M10 Aircraft nuts(68#) .