Post on 17-Dec-2015
Tear Down 4Remove top spider ring along with old spiders. Clean off old surround and glue. Use a 36 grit grinding pad.
Tear Down 5Peel out old former, carefully cut away old glue. Use grinding wheel if necessary. Do not cut through Kevlar. Remove as much of old glue as possible.
Tear Down 6Remove old surround material and glue.If the old surround cuts away clean and flat, it may be possible to glue new surround edge over the old one. Check entire glue joint first, patch any loose areas. IF over-gluing is not possible, cut/grind away old surround and glue, until cone surface is smooth.
Tear Down 7
Ream out cone I.D. until it fits easily over new voice coil.
Repair any cut marks in the Kevlar or foam core.
Step 3Overcoat nylon to form a solid ridge. This ridge gives added glue joint area, reinforcing the glue joint holding the bottom of the cone
Step 4Lay glue joint on frame. Spread over the area where the surround lays flat. Lay glue on the nylon ridge now attached to the voice coil former
Step 5Lay cone into basket, twist slightly to spread glue. Let the surround ease out to find a no stress set point. Use craft stick to spread glue under surround edge. Work the edge and glue around entire circumference. Accelerate 1 section between frame holes. Work flat with craft stick. Move to next section until glue is set.
Step 6Lay glue into gap around former and I.D. of the cone, then over onto the cone surface. Lay nylon around the gap and spiral out onto the cone.