Step 12  Install the bumper base look to make sure you have the base so the big and little holes line up or its never going to join up properly. Feed the lamp leads through the correct holes and press the base and body and they should clip together

Step 13  Now insert the rebuilt bumper into position

Step 14  Insert the two bumper screw into the top of the bumper and tighten

Step 15  With the bumper in place its now time to replace or clean and adjust your bumper switches the switch with the cup attached should be slightly open but should firmly touch when the bumper skirt is pushed by hand.  Depending on machine the second contacts which is activated buy the yoke are to either add the score or shut off the bumper relay on EMs adjust these to either the open or closed position which ever is required