Loading/Unloading
Tooling
The mill is equipped with an R8 spindle taper and a
Figure 41. Upper portion of drawbar.
Tools Needed | Qty |
Wrench 21mm | 1 |
Brass Hammer | 1 |
Loading Tooling
1.DISCONNECT MILL FROM POWER!
2.Clean any debris or surface substances from inside the spindle taper and the mating sur- face of the tooling.
Note: Debris or oily substances can prevent the tooling and spindle from properly mating. This condition can cause excessive vibration, poor cutting results, or tool/workpiece dam- age.
3.place the mill in the low spindle speed range to keep the spindle from turning in the next steps.
4.Align the keyway of the tool with the protrud- ing pin inside the spindle taper, then firmly push the tool into the spindle to seat it.
5.With one hand holding the tool in place, insert the drawbar into the spindle from the top of the head, then thread it into the tool (see Figure 42).
Head of
Drawbar
Figure 42. Drawbar loaded
(Model G0747 shown).
6.tighten the drawbar until it is snug. Avoid overtightening, as this could make removing the tool difficult.
Unloading Tooling
1.DISCONNECT MILL FROM POWER!
2.place the mill in the low spindle speed range to keep the spindle from turning in the next step.
Note: Make sure that the drawbar has at least three threads engaged with the tool- ing in the next step to avoid damaging the threads of the drawbar or tool.
3.loosen the drawbar a couple of turns, then tap the top of it with a brass hammer to knock the tool loose at the bottom of the spindle.
4.support the tool with one hand, then com- pletely unthread the drawbar from the tool.
Model G0747/G0748 (Mfg. Since 8/12)