GMT CHUCK DISMANTLING PROCEDURE

1. First, remove the hard jaws / soft jaws from the base jaws by loosening the socket head screws along with the T’ Nuts. 2. Then remove the cover with the cover adapter (if fitted) from the chuck. 3. Loosen the chuck clamping screws, which are used for mounting the chuck on the flange. Note: Do not loosen the screw threads completely. A few must remain engaged with flange. 4. Place a wooden plank below the chuck on the guide ways of the lathe. 5. Using the special spanner (supplied with the chuck), rotate the collar till the draw tube is completely disengaged. 6. If it is a special execution chuck, then using the Allen key (provided with the chuck), loosen the wedge screw till it disengages from the draw bar. 7. Then loosen the chuck clamping screws fully from the flange, so that the chuck comes out from the flange. NOTE: DO NOT LOOSEN THE COLLAR OR WEDGE SCREW WITHOUT LOOSENING THE CHUCK CLAMPING SCREWS. 8. After removing the chuck from the machine spindle, place it on a table and pull out the wedge, along with the wedge adaptor and collar. 9. Push the base jaws towards the wedge bore of the chuck and remove them. NOTE: DO NOT HAMMER THE BASE JAWS WITH STEEL TOOLS. ALWAYS USE AN ALUMINIUM OR PLASTIC MALLET.