STEP 1 Attach mounting plate (B) and pedestal extension (E) to the column (D) with long bolts (10), short bolts (1), washers (2) , (4) , (11) and (12) as shown below. Tighten with allen key (9). STEP 2 Attach pedestal extension (E) to the column (D), with long bolts (10 ), washers (11) and (12) as shown below. Tighten with allen key (9). Attach mounting plate (B) and pedestal extension (E) to the column (D), with long bolts (10), short bolts (1), washers (2), (4) , (11) and (12) as shown below.