Model G0781 (Mfd. Since 2/15)
-25-
Installing/Removing
Tooling
The Model G0781 includes a 3–16mm drill chuck
with an R-8 arbor (see Figure 19). The R-8 arbor
is precision-ground, and features a tool slot for
easy, secure alignment in the mill/drill spindle.
The tapered R-8 arbor end joins securely with the
drill chuck to support tooling from 3–16mm.
Tools Needed Qty
Spindle Pin ........................................................ 1
Wrench 10mm ................................................... 1
To install tooling:
1. DISCONNECT MACHINE FROM POWER!
2. Remove drawbar cap and motor cover.
Installing Tooling
Figure 21. Components used when installing or
removing tooling.
Drawbar
Spindle Pin
4. Working from above, thread drawbar (by
hand) into tooling assembly until snug.
5. Secure spindle with spindle pin and tighten
drawbar, as shown in Figure 21.
Note: Do not overtighten drawbar.
Overtightening makes tool removal difficult
and may damage arbor and threads.
6. Re-install drawbar cap and motor cover.
Figure 19. 3–16mm drill chuck joined with R-8
arbor.
Key Slot
Tools Needed Qty
Spindle Pin ........................................................ 1
Wrench 10mm ................................................... 1
Brass Hammer .................................................. 1
To remove tooling:
1. DISCONNECT MACHINE FROM POWER!
2. Remove drawbar cap and secure spindle
with spindle pin. Unthread drawbar from tool-
ing one full rotation.
Note: Do not fully unthread tooling from
drawbar or the drawbar and tool threads
could be damaged in the next step.
3. Tap top of drawbar with brass hammer to
unseat taper.
4. Hold onto tooling assembly with one hand,
and fully unthread drawbar with the other
hand.
Removing Tooling
Figure 20. Drawbar cap and motor cover.
Drawbar Cap
Motor Cover
3. Align key slot (see Figure 19) with pin inside
spindle, then insert tooling assembly into
spindle until it contacts drawbar.
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