Kitagawa QB300, Инструкция по эксплуатации, Страница: 55 / 62

54
3. Connect the chuck to the draw pipe
・
Remove the soft jaw and the cover of the chuck, and insert the handle to the chuck
center hole, to connect to the draw pipe while turning the draw nut.
・
When connecting the draw nut and the draw pipe, do not forcibly screw them in if they
cannot be screwed smoothly, but check the inclination of the core of the screw, etc.
・
If the screw-in depth of the draw pipe to the draw nut is insufficient, the screw
will break and the gripping force will be lost instantly, which will the work to fly
out.
・
If the engagement of the screw of the draw pipe is loose, vibration may occur
resulting in breakage of the screw, loss of gripping force and the work flying
out.
4. Attach the chuck matching to the attaching surface of the spindle (or the back
plate).
・
Turn the handle for connection to make a state that the chuck closely contacts the
spindle attaching surface of the lathe.
・
In the case of adjusting the centering of the chuck, lightly hit the body side face with a
plastic hammer.
・
Tighten the chuck attaching bolts evenly. At this time, tighten the bolts at the specified
torque.
・
Always tighten the bolts at the specified torque. If the torque is insufficient or
excessive, the bolt will break, which is dangerous as the chuck or work will fly
out.
・
Use the bolts attached to the chuck, and do not use other bolts. However, if
you must use other bolts not provided by Kitagawa, use bolts that have at
least a strength classification of 12.9 (10.9 for M22 or more) and be sure they
are long enough.