![]() You can use the flange to clamp on the table vise if needed to keep the spindle from turning. Tips, use a very short tool holder while removing the upper spindle nut. Heavy black lithium grease on all springs and drawbar. Try not to unhook oil lines on the unclamp cyl if the machine is not a hydraulic type, bleeding the system can be a PIA sometimes. Cautions: dealing with a lot of spring pressure, especially when putting back together. Put the rod up to the drawbar, lower Z axis and use the machine to push the drawbar out. If it's really stuck, a peice of 5/16 rod helps here. ![]() The draw bar will hopefully pull out now. ( i also made a manual press plate at one time for doing this). Slowly back off the nuts on the all thread until the spring pressure is relaxed. Now, lots of spring pressure still on the cyl. Unclamp the tool from the spindle, and let the unclamp cyl re-clamp. I usually use all thread when re assembly here. Once you spin the upper nut off (they can be a real B*tch) bolt the unclamp cyl back on. Remove the screws completely and check to make sure they are not a double set screw. Be careful, Mori puts 3mm set screws around the nut to keep it from backing off. This is probably a machine that has a hydraulic unit in the back then? You will need to start with a tool in the spindle, pull the unclamp cyl/piston assembly off, remove the upper spindle nut and drawbar lock if it has one. Yes, at least you don't have to deal with the built in sensor and sensor ring (i think).
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