Foredom Series S - Manual (Page 9)

Nos. 7A and 7AD Handpieces:
These handpieces have a push-pull collet closer. Pull the handpiece grip back as far as it will go.
Insert accessory shank (size 3/32
″ only) as far as it will go. Push front portion of the handpiece
forward firmly. Test for a secure hold by pulling on the accessory. To release accessory, pull
handpiece grip back with firm pull. Pull out accessory.
Nos. 10 and 10D Handpieces:
These handpieces operate only when a 3/32
″ shank bur is inserted. It will lock if bur is not
inserted. To insert bur, move lever 180º clockwise towards the back (shaft connection end) of
handpiece. Insert or change a 3/32
″ shank bur and move lever 180º forward. Make sure lever is
completely locked into the forward position.
Nos. 18, 18D, and 18SJ Handpieces:
These handpieces have a lever on side of handpiece. Push the spring loaded lever in to open
collet and release the shank of accessory (3/32
″ only). Insert accessory while holding the lever
down. Never push lever down while handpiece or flexible shaft are rotating.
Nos. 52, 52D, and 52SJ Handpieces:
These quick change handpieces have a unique push/pull collet chuck release mechanism for
rapid accessory changing (3/32
″ only in 52 and 52D). Wait for the motor, flexible shaft, and
accessory to come to a full stop before opening the chuck. After accessory has stopped rotat-
ing, pull the outer grip forward with one hand while holding the back of the handpiece with the
other. Remove the accessory and insert the shank of the new one at least 1 ″ (25mm) into the
chuck. Pull the grip all the way back until the chuck snaps closed.
Handpiece Lubrication
(See page 7 for handpiece photos.)
Numbers 7A and 7AD*: Unscrew the front housing which exposes the spindle. Clean the spindle
thoroughly with solvent. Apply several drops of Foredom oil (Part Nos. 10005 or 10010) to the
spindle and spread it over the spindle uniformly. This should be done every 20 hours of operation.
Numbers 8, 8D*, 18, 18D*, 25, 25C, 28, 30 ® , 35, 44T, 52, and 53:
These handpieces have been permanently lubricated with greased-shielded ball bearings and
should absolutely not be lubricated.
Number 10: Lubrication should not be required for the first 2–3 months of continuous use.
Then, approximately every two weeks, remove the sheath connector (it has a standard right
hand thread) to expose the slotted shaft connector and back of handpiece spindle. Clean off any
dirt or old lubricant. Apply
only 1 or 2 drops of Foredom oil to the spindle where it attaches to
the slotted shaft. Now replace sheath connector.
Number 10D* Handpiece with Duplex Spring Connection: Approximately every 20 hours of oper-
ation apply 1 or 2 drops of Foredom oil into the hole in the duplex spring collar next to the
sheath connector. This will provide sufficient lubrication for both the duplex spring connection
and the handpiece spindle.
Numbers 15 and 15D*: Before disassembling, clean off any dirt to prevent foreign matter from
falling inside the handpiece. Remove the threaded nosepiece assembly carefully with wrench
supplied by turning counterclockwise (right-hand thread). Put two drops of Foredom oil into the
bottom of the threaded hole of the housing and one drop into the nosepiece assembly. Replace
the nosepiece assembly, hold the handpiece upright and run it slowly to distribute the oil.
Lubricate every 100 hours of use.
*Note: All handpieces marked with asterisk have duplex spring connections (flexible springs in
middle). These connections must be lubricated once every 20 hours of operation. Apply about
two drops of oil into the hole on the rear of the connection collar. This should be done with
Foredom ® Hypodermic type oiler (Part No. 10005).
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