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collet/arbor
the Model g3358 features an r-8 spindle which
accepts many industrial collets and arbors.
to install a collet or an arbor:
1.
disConneCt MAChine FroM poWer!
2.
release the latches on the head cover and
open it.
3.
Make sure the tapered mating surfaces of the
collet or arbor and the spindle are clean and
free of grease or other impurities.
4.
insert the collet or cutting tool's arbor up into
the spindle housing. rotate the collet or arbor
to line up the keyway with the matching pin in
the spindle opening (figure 20).
drawbar
Arbor
figure 20. Collet/arbor installation.
5.
turn the hex head at the top of the drawbar
(located on the top, front of the head) clock-
wise until the threads at the bottom of the
drawbar mesh with the female threads in the
top of the collet/arbor.
6.
if you're using a collet, insert the cutter in
the hole at the bottom of the collet. Be sure
to protect your hands from the cutter with
leather gloves or a shop rag.
7.
Continue to tighten the drawbar until both the
collet and cutter, or arbor are tightly in place.
do not over-tighten the drawbar.
g3358 Milling/drilling Machine
to remove a collet or an arbor:
1.
disConneCt MAChine FroM poWer!
2.
loosen but do not remove the drawbar.
3.
hold the cutter with a shop towel to prevent it
from dropping completely out of the machine.
tap on the top of the drawbar with a rubber
mallet to loosen the collet/arbor from the
spindle (figure 21).
Vertical
drawbar
Arbor
figure 21. Collet removal.
4.
unthread the drawbar until it is free from the
collet/arbor. once loose, remove and replace
with your desired collet/arbor. remove cut-
ting tools from the spindle when not in use.
-21-
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