Foredom H.28 - Manual

IMPORTANT INSTRUCTIONS
Foredom
®
Handpiece No. 28
Please read instructions before
attaching this handpiece.
See your power tool owner’s manual for com-
plete instructions on use and maintenance.
Adjust the Shaft & Sheath for the
No. 28 Handpiece
It is important to check the sheath and shaft tip and
properly adjust them before attaching this hand-
piece to your Foredom flex shaft tool. The tip of the
flexible shaft should extend 3/4
″ beyond the end of
the sheath and no more than 7/8 ″ or less than 5/8″
(see below).
On Foredom machines with standard shaft and
sheath, this adjustment is made by loosening the set
screw in the motor connector and moving the sheath
in or out while the motor and shaft/sheath assembly
are fully extended and straight while hanging or on
a flat surface. When the correct adjustment is made,
tighten the set screw in the motor connector.
Attach the No. 28 Handpiece to Flexible Shaft
Attach the handpiece by pushing it on the grooved
QD (quick disconnect) fitting on the sheath. Be sure
that the keyed tip of the flexible shaft is properly
lined up with the slot in the handpiece shaft
connector by looking into the rear of the handpiece
before pushing it on (see below). If it is not in line,
turn the shaft tip or the handpiece to the
correct position.
Pilot/
Spindle Hole
FOREDOM ®
The Foredom Electric Co.
16 Stony Hill Road, Bethel, CT 06801
www.foredom.com
Form No. 1293 n6/03
Maintenance and Lubrication
The No. 28 handpiece does not require any
lubrication. Putting oil or grease into the front or
back will damage its prelubricated ball bearings.
Periodically remove the chuck nut and collet and
clean the collet holder seat and threads of dust or
debris with a bristle brush or air gun.
Changing Accessories
Be sure the shank size of the accessory
(1/8
″ or 3/32″) is paired with the same size
collet. Inserting an accessory which is too
small or too large may damage the collet.
Insert the pin
provided into
the pilot hole
and through
the spindle hole (turn spindle to align holes).
Apply wrench and loosen chuck nut slightly by turn-
ing counter-clockwise. 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.
Changing Collets
The No. 28 handpiece includes two collets–1/8
″ and
3/32
″ for holding burs and other accessories with
1/8
″ and 3/32″ diameter shanks. To change a collet
insert pin provided into the pilot hole and through
the spindle hole (turn spindle to align holes). Apply
wrench and unscrew chuck nut by turning counter-
clockwise. Remove chuck nut to expose collet and
pull collet out of handpiece shaft. Slip new collet in
place and screw on chuck nut with pin and wrench.
Caution To avoid damaging the collet
and allow for bur insertion: Never
screw the chuck nut back on too tightly.
If you tighten an empty collet or insert
an accessory which is too small or too
large you may damage the collet.