Foredom 800 User Manual
Owner’s Manual
Model 800 Air Grinder
Instructions for Assembly,
Operation, and Maintenance
For your own safety, please read the Owner’s Manual
before operating your Foredom power tool.
Always wear eye protection.
®
FOREDOM
Safety Instructions
Before using the Foredom Model 800 Air Powered Grinder, be sure to thoroughly
familiarize yourself with these instructions, with State and Local Regulations and with
the regulations of General Industry Safety and Health Regulations, Part 1910,
OSHA 2206, available from Supt. of Documents, Gov’t Printing Office, Washington
D.C. 20402, and Safety Code for Portable Air Tool – ANSI 81861. Available from
American Standards Institute, Inc., 1430 Broadway, New York, New York 10018.
Always comply with these regulations.
Please pay attention to the following:
• Be sure that the speed rating of the accessory (abrasive wheel, buffing wheel, wire
brush, saw blade, flap wheel, carbide bur, steel bur, or other product) is 30,000 RPM
or higher. Do not use any accessory which vibrates, or is cracked, chipped, or
otherwise damaged.
• Operate the tool at 90 PSI (6.3 Kg/Cm). Never operate above 90 PSI. Use an air-line
filter/regulator/lubricator recommended for use at 90 PSI.
• If the tool vibrates, is damaged or produces an unusual sound, repair
immediately or return to Foredom for repair.
• Always wear safety glasses or a face shield when using this tool.
• Do not use excessive force. Let the rotational speed of the tool do the work.
Failure to follow these instructions may result in serious injuries.
Operation
• Recommended air pressure for optimum performance is 90 PSI. Clean, filtered, and
lubricated air is essential for long, trouble-free life of the Foredom Model 800
Air Grinder.
• The Model 800 Air Grinder is supplied with a 6′ heavy duty hose with 1/8″ NPT
threaded fitting which should be attached to air supply through the filter/
regulator/lubricator assembly.Adjust lubricator for minimal oil delivery.
• Do not sterilize this handpiece.
Installing Burs:
1. Pull back chuck guard to uncover chuck portion of the spindle.
2. Insert one of two wrenches provided in slots on spindle.
3. Insert other wrench in slots on chuck nut.
4. Turn wrenches to loosen chuck nut.
5. Insert accessory shank as far as possible into the collet.
6. Tighten chuck nut securely with wrenches and test for a secure hold by pulling
on accessory.
7. Remove wrenches and slide chuck guard into protective position.
8. Follow the same steps to replace accessory.
Collets Available:
Changing Collets:
1. Remove chuck nut.
2. Replace collet.
3. Replace chuck nut.
Part No. Capacity
601 1/32″ (.8mm)
602 1/16″ (1.6mm)
603 3/32″ (2.35mm)
604 1/8″ (3.18mm)
605 3mm collet
Lubrication and Maintenance
Handpiece Lubrication and Maintenance
1.The use of a miniature filter-regulator-lubricator is required to maintain proper
operation. (Larger lubricators will not deliver the proper amount of lubricant at the low
air flow of this handpiece.)
2. Adjust the lubricant to deliver the minimum amount of oil into the air stream.
3. Use only a very light oil. Heavier oils can cause sluggish operation and a loss
of power.
4. Over lubrication will also cause the handpiece to operate in a sluggish manner.
Cleaning Instructions
It is not unusual for particulate matter from the air supply to accumulate in air
operated handpieces. You can insure dependable, smooth operation if you clean your
handpiece every 30 days as follows:
1. Disconnect air tubing connector.
2. Spray any aerosol handpiece cleaner (such as WD-40) into the inlet tube for
three seconds.
3. Reconnect air tubing connector and check performance of the handpiece.
4. Repeat three times if necessary. If the aerosol cleaning procedure fails to
improve motor performance, return for repair.
LIMITED WARRANTY
Foredom warrants the Model 800 Air Grinder to be free of defects in material
or workmanship for a period of 1 year 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 APERIOD ENDING 1 YEAR 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
This warranty only covers the original purchaser of the product. Some states
do not allow limitations on how long an implied warranty lasts or the exclusion
or limitation of incidental or consequential damages so the above limitations
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.
For more information on Foredom machines, handpieces or accessories,
contact your local dealer.
Troubleshooting Operating Problems
Problem Correction
Motor will not start at low air pressure Follow Cleaning Instructions listed above.
Motor sluggish – low speed or torque Check air pressure. Follow Lubrication
Instructions listed above.
Motor will not run. Check air pressure. If spindle will not
rotate, motor is probably locked up due to
foreign material entering through air line.
Return for cleaning.
®
FOREDOM
The Foredom Electric Company
16 Stony Hill Road, Bethel, CT 06801 • 203-792-8622 • Fax 203-7067861
www.foredom.com
Form 1246A n 8/00 Printed in USA
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