12
Assembly
ALWAYS BE SURE THE TOOL IS IN
THE “0” POSITION BEFORE
CHANGING ACCESSORIES, CHANGING COLLETS OR
SERVICING YOUR CORDLESS ROTARY TOOL.
SHAFT
LOCK
BUTTON
TO LOOSEN
TO TIGHTEN
COLLET
NUT
COLLET
COLLET
NUT
IDENTIFICATION
RINGS
480 1/8"
COLLET
481 3/32"
COLLET
482 1/16"
COLLET
483 1/32"
COLLET
COLLET NUT—
To loosen, first press shaft lock button
and rotate the collet nut by hand until the lock engages
the shaft preventing further rotation.
Do not engage lock while the Tool
is running.
With the shaft lock engaged, loosen the collet nut by
hand. Change accessories by inserting the new one
into the collet as far as possible to minimize runout and
unbalance. With the shaft lock engaged, finger tighten
the collet nut until the accessory shank is gripped by
the collet.
Avoid excessive tightening of the collet
nut when there is no bit inserted.
COLLETS —
Four different size collets (see illus -
tration), to accommodate different shank sizes, are
avail able for your Cordless Rotary Tool. To install a dif-
ferent collet, remove the collet nut and remove the old
collet. Insert the unslotted end of the collet in the hole
in the end of the tool shaft. Replace collet nut on the
shaft.
Always use the collet which matches the shank
size of the accessory you plan to use.
Never force a
larger diameter shank into a collet.
BALANCING ACCESSORIES —
For precision work, it is
important that all accessories be in good balance
(much the same as the tires on your automobile). To
true up or balance an accessory, slightly loosen collet
nut and give the accessory or collet a 1/4 turn. Re -
tighten collet nut and run the Cordless Rotary Tool. You
should be able to tell by the sound and feel if your
accessory is running in balance. Continue adjusting in
this fashion until best balance is achieved. To maintain
balance on abrasive wheel points, before each use,
with the wheel point secured in the collet, turn on the
Cordless Rotary Tool and run the 415 Dressing Stone
(not included, available as accessory) lightly against
the revolving wheel point. This removes high spots and
trues up the wheel point for good balance.
Remember, your new Dremel Cordless Rotary Tool is
the finest power tool of its kind. But its performance
is only as good as the accessories with which it is
used. We recommend only Dremel accessories be
used. Use of any other accessories may create a haz-
ard. We hope you’ll enjoy many years of trouble free
pleasure from your Dremel Cordless Rotary Tool.
COLLET IDENTIFICATION CHART —
Collet sizes can
be identified by the rings on the back end of collet.
1/32" Collet has one (1) ring.
1/16" Collet has two (2) rings.
3/32" Collet has three (3) rings.
1/8" Collet has no rings.
(1/8
"
Collet is included with your tool)
!
CAUTION
!
WARNING
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