Foredom Series SR - Manual (Page 9)

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25, (25H), 28, 28SJ, (28H),35, 35SJ,
43T, 44T, (44HT), and 44TSJ Collet Handpieces:
To insert or change accessories: insert pin
provided into the pilot hole and through the
spindle hole (turn spindle to align holes). Loosen
chuck nut slightly with wrench provided. Insert
shank of accessory into collet. Tighten chuck nut
with wrench, keeping pin in pilot hole. Test for a
secure hold by pulling on accessory. Remove pin.
C huck Type – 30 ® , 30SJ,
and (30H) Handpieces:
These handpieces have a
geared 3-jaw #0 chuck. Open
chuck jaws as far as neces-
sary with key provided. Insert shank of accessory
fully into the chuck. Tighten jaws with chuck key
until accessory is secure and centered. If accessory
does not run true, reopen jaws, rotate accessory
and retighten. To release accessory, simply reopen
chuck jaws with key and pull out accessory.
Hammer Type – 15, 15D, & 15SJ Handpieces:
These handpieces have a threaded spindle. Thread
anvil or stylus into threaded spindle as far as it will
go with clockwise motion. Insert pin provided into
cross hole in anvil or stylus. Tighten and remove
pin. To release accessory, insert pin into the cross
hole and unthread.
Quick Change Type – 10, 10D, 18, 18D, 18SJ,
20, 20D, 20SJ, 52, 52D, and 52SJ
Handpieces:
Keep an accessory in these handpieces at all
times, during both operation and storage, or
damage to the collet and handpiece may result.
These handpieces accept only 2.35mm (3/32 ″)
shank accessories.
10 and 10D Handpieces:
To insert bur, turn lever 180º clockwise towards the
back (shaft connection end) of handpiece. Insert or
change a 2.35mm (3/32 ″) shank bur and turn lever
180º forward counterclockwise. Make sure lever is
completely locked into the forward position. Never
change burs while handpiece is running.
18, 18D, and 18SJ Handpieces:
These handpieces have a
lever on the side of the
handpiece. Push the spring
loaded lever down to open
the collet and release the
shank of accessory (2.35mm or 3/32
″ only). Insert
accessory with the lever held down. Never push
lever down while handpiece or flex shaft are rotating.
Attaching Accessories to Handpieces
Directions for attaching accessories to handpieces
vary according to the type of handpiece being used.
Locate the model number of your Foredom
handpiece from the photos on page 8. Always wait
for the motor, flexible shaft and accessory to come to a
complete stop before changing an accessory.
(Handpieces listed in brackets are for use with
Series SRH models only.) Attach the accessory
according to the following:
Collet Types –
8, 8D, 25, (25H), 28, 28SJ,
(28H), 35,
35SJ, 43T, 44T, 44TSJ, & (44HT) Handpieces:
A collet is an interchangeable slotted cylinder
inserted tightly into the interior of a handpiece to
hold a bur or other rotary accessory. The diameter
size of the collet must match the diameter of the
accessory’s shank.
General Directions: Be sure to use the correct
shank size. The correct shank will fit snugly inside
the collet. Caution: Never tighten a collet unless
an accessory has been inserted. Tightening an
empty collet or inserting an accessory which is too
small or too large may damage the collet.
8, 8D, and 8SJ Handpieces:
To change a collet: slide back the chuck guard and
use one wrench to hold the spindle and the other to
unscrew the chuck nut by turning counterclock-
wise. Remove chuck nut to expose collet and pull
collet out of handpiece shaft. Slip new collet in
place and tighten chuck nut with wrenches.
To insert accessory: insert shank as far as possible
into the collet. Tighten chuck nut. Test for a secure
hold by pulling on accessory. Remove wrenches.
To release an accessory, follow the same steps.
Accessories can be released when chuck nut is
loosened. If accessory does not run true, loosen
chuck nut, rotate accessory, and retighten.
25, (25H), 28, 28SJ, (28H), 35,
35SJ, 43T, 44T, 44TSJ & (44HT) Handpieces:
To change a collet: 1. Insert pin provided into the
pilot hole and through the spindle hole (turn spin-
dle to align holes). Apply wrench and unscrew
chuck nut by turning counterclockwise.
2. Remove chuck nut to expose collet.
3. Pull collet out of
handpiece spindle.
4. Slip new collet in place
and screw on chuck nut.
5. Remove pin.
Pilot or
Spindle
Hole