FOREDOM Handpiece H.20, Important Instructions

Shaft and Sheath Adjustment for Handpiece H.20 and H.20D

It is important to check the sheath and shaft tip and properly adjust
them before you attach this handpiece to your Foredom flexible
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 above).

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 adjustment is correct, tighten the set
screw in the motor connector.

Attaching the Handpiece to the 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. If it is not in line, turn the handpiece to the 
correct position. 

IMPORTANT INSTRUCTIONS

For Handpiece H.20 and H.20D

•

Keep a 2.35mm (3/32

″

) shank in the handpiece at all times, 

during operation and storage.

•

Never turn collet release lever while flexible shaft is  rotating. 
The release lever is not intended for use as a brake.

For More Information

For more information on Foredom machines, handpieces, or

accessories, contact your local dealer. When no local dealer is available,

write: The Foredom Electric Company, 16 Stony Hill Road, Bethel, CT

06801, call (203) 792-8622, or visit our website at www.foredom.com.

Always wear proper

eye protection while using

this handpiece.

Form 1264  n

11/06

Printed in U.S.A.

Before attaching this Handpiece 
please read these instructions.

Note: 

This illustration 
does not apply to 
slip joint connections.

Operation

This Quick Change handpiece has a unique lever action

collet release mechanism for rapid accessory changes. Wait for the
motor, flexible shaft and accessory to come to a complete stop
before turning the lever to open collet and remove or insert a bur.

Never turn collet release lever while flexible shaft is rotating!
This can cause damage and extensive wear to the handpiece!

Turn lever 90˚ to left or right to      Center lever to close collet to
open collet and release bur.

secure bur.

Maintenance and Lubrication

Bearings in handpieces H.20 &

H.H.20D do not require any lubrication. Putting oil or grease into
the front or back of these handpieces will damage their pre-
lubricated ball bearings. The H.20D handpiece duplex connection
should be lubricated approximately every 20 hours of use. Apply 2
drops of oil (p/n MS10005) in oil hole on rear of duplex connection.

Flexible Shaft Cleaning and Lubrication should be performed every 
50 hours of use: Unscrew motor connector (left hand thread) and 
remove drive shaft. The flexible shaft should be thoroughly cleaned
with a solvent. Apply a 

light film

of Foredom grease (p/n MS10006)

to entire length of inner shaft. Reconnect shaft (see shaft and
sheath adjustment instructions on reverse) and sheath and run
motor for a ten minutes before reconnecting handpiece. Turn off
motor, wipe off excess grease from tip of drive shaft and reconnect
to handpiece per instructions.

Repair Service

Factory repairs are done promptly and at reasonable cost. If you wish,

you can send your equipment directly to the factory marked: “Attention:

Service Department”. Be sure to give your street address, daytime

phone number and /or email address. Include a brief note describing

the problem with the equipment. Estimates will be made upon request.

Replacement Collet

Instructions for replacing and adjusting the collet are on the reverse

side. If a collet is damaged or needs replacement, order Collet 

HP3-1008 which includes special size hex key for installation. 

LIMITED WARRANTY

Foredom

®

warrants its product to be free of defects in material or workmanship

for a period of 90 days after purchase. During the warranty period, the defective

product will be repaired or replaced without charge or, at our option, the

purchase price will be refunded. This warranty does not cover damage caused in

transit or by accident, misuse, or ordinary wear.

ALL IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO WARRANTIES

OF FITNESS AND MERCHANTABILITY, ARE HEREBY LIMITED IN DURATION TO

A PERIOD ENDING 90 DAYS FROM DATE OF PURCHASE, AND WE WILL NOT

BE LIABLE OR RESPONSIBLE FOR ANY SPECIAL OR CONSEQUENTIAL

DAMAGES. Repair or replacement will be made at our option if the product is

returned post-paid to:

The Foredom Electric Company

16 Stony Hill Road, Bethel CT 06801

All warranty repairs must be done at the factory at the address above.  We will

not pay any shipping or transportation charges. This warranty covers the

original purchaser of the product only. Some states do not allow limitations on

how long an implied warranty lasts, so the above limitation may not apply to

you. This warranty gives you specific legal rights, and you may also have other

rights which vary from state to state.