Position, level and secure upper Psd with four % x 8 inch wood sowers. The bottom of the 2x4 should be positioned on reference line. . Abhorring to figure 1A or 18, draw a horizontal reference line 32° down farm the boll om of the dipper 2x4 Support, Post ion, level and secure lower Swed with two ¥h x 8 Inch wood sowers. The center ihe of the 2wd should be positioned on reference ing. 2, .