Assembly; Collet Nut; Collets; Fixing Stuck Collets - Dremel Lite 7760 Operating/Safety Instructions Manual

1600A01A91.qxp_7760 3/4/19 1:55 PM Page 13

▶ Collet Nut

To loosen the collet nut, first press shaft
lock button and rotate the shaft by hand
until the lock engages the shaft
preventing further rotation. Your Dremel
Lite 7760 is equipped with a shaft lock
mechanism. This mechanism engages
the output shaft in 4 separate locations
on the shaft for easier operation.
is running.
With the shaft lock 7 engaged, use the
EZ TWIST™ integrated wrench / nose cap
3 (or collet wrench 15) to loosen the
collet nut 1. The collet nut must be
loosely threaded on when inserting an
accessory.
Change accessories by inserting the new
one into the collet as far as possible to
minimize runout and unbalance. With
the shaft lock 7 engaged, tighten the
collet nut 1 securely with EZ TWIST™
integrated wrench/nose cap 3 or collet
wrench 15 (Fig. 2). Avoid excessive
tightening of the collet nut when there
is no bit inserted.
Fig. 2
3
LOOSEN

▶ Collets

Four different
accommodate different shank sizes, are

Assembly

Always be sure the tool is turned "OFF" before changing accessories,
changing collets or servicing your cordless rotary tool.
Do not engage lock
while the Rotary Tool
7
3
1
TIGHTEN
15
size collets,
Fig. 3
1 2a
1 Collet nut
2a 1/8" collet 480 - no ID rings
2b 3/32" Collet 481 - three ID rings
2c 1/16" Collet 482 - two ID rings
2d 1/32" Collet 483 - one ID ring
2e ID ring
avail able for your Rotary Tool. Collet
sizes can be identified by the rings on
the back end of collet. 1/8" Collet has
no rings and is included in most tool
kits.
To install a different 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.
shank size of the accessory you plan to
use. Never force a larger diameter shank
into a collet.
Note: Most rotary tool kits do not
include all four collets sizes.

▼ FIXING STUCK COLLETS

It is possible for a collet to get stuck
within the collet nut especially if a collet
nut is tightened onto the tool without a
bit in place. If this happens, the collet
can be removed from the collet nut by
pushing the shank of an accessory into
the hole in the collet nut. This should
cause the collet to pop out of the collet
nut.
to
13
2b 2c 2d 2e
Always use the collet
which matches the