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For parts identification please refer to the spare parts list. The two inner springs are drawout springs. This does not need to be disassembled unless damaged. When lifting off retaining plate you should see two outer cushion springs which will become free, note their locations. If instead of springs you find hard rubber pieces these should be replaced by springs. See parts list item 13/ Note also the position of the detent pin The plunger sub assembly consists of a knurled adjusting screw and locknut, a spring, and the plunger. as it connects to the plunger sub assembly. Remove Auto die closer. Remove retaining plate.
DX DIE HEAD
Ensure the head is in the open position. Remove and retain any chaser dies. Remove front plate.
COVENTRY DX DIE HEADS
STRIPPING, ASSEMBLING, REPAIRS
When disassembling care should be taken to retain all small parts, screws, springs etc.These should be placed in a secure container for inspection and reuse if serviceable.
Remove the body, if still in situ. From the external scroll, remove the adjusting screws and tooth. The opening spring screws may be removed for inspection. and be damaged. Take care to prevent this. Remove the back plate. farthest from the detent pin bush position. Remove the opening springs. These have just one opening spring pad in the end Note that the shank has four projections with holes. Remove the back plate screws. The die head body (the part that holds the chasers) will now be free so could fall from the front of the assembly Note its position with respect to the detent pin. One of these is much thinner than the others. The shank can now be lifted from the back plate. Remove the detent pin and retain.
Test head in vice for both pull off and push off actions. Refit auto die closer Refit chasers and front plate. slot of the detent pin, and that the cushion springs are square between the shank and retaining plate. Refit and tighten retaining plate screws. Locate cushion springs into shank. Refit retaining plate / plunger assembly. Ensure that the plunger locates into the Reposition shank ensuring that thick projection is over detent pin to ensure pull off and plunger push off modes. fit backplate screws and springs. Place detent pin into bush with slot facing outwards. Position die head so that body cannot detach, remove shank and
