1. Remove the L-plunger from the bracket with a 3/8 inch wrench. Do NOT remove the bracket from the cushion.
2. Slide the head cushion forward so the bracket is beyond the original hole but close to it. Use an 8mm or 5/16 inch transfer punch through the bracket to mark this new hole location on the frame. If a transfer punch is not available than use an 8mm or 5/16 drill bit in a drill to lightly mark the spot. Do not drill the hole.
3. Slide the head piece further away so the bracket will not interfere with the drilling. Drill the new hole as small as possible and still receive the L-plunger. The plunger measures 5.9mm diameter.
4. Install the L-plunger in the bracket and test for function.