3
CAT650HD
01/04/13
Operating Instructions • Warning Information • Parts Breakdown
AIR SUPPLY
Tools of this class operate on a wide range of air pressures. It is
recommended that air pressure of these tools measures 90 PSI
at the tool while running free. Higher pressure and unclean air
will shorten tool life because of faster wear and may create a
hazardous condition.
Water in the air line will cause damage to the tool. Drain the air
tank daily. Clean the air inlet filter screen on at least a weekly
schedule. The recommended hook-up procedure can be viewed
in Figure 1.
The air inlet, used for connecting air supply, has standard
1/4" NPT American Thread.
Line pressure should be increased to compensate for unusually
long air hoses (over 25 feet). Minimum hose diameter
should be 3/8" I.D. and fittings should have the same inside
dimensions.
LUBRICATION AND
MAINTENANCE
Lubricate the tool daily with a good grade of air tool oil. If no
air line oiler is used, run 1/2 ounce of oil through the tool. The
oil can be squirted into the tool air inlet, or into the hose at the
nearest connection to the air supply, then run the tool. A rust
inhibitive oil is acceptable for air tools.
OPERATION
Select a suitable abrasive disc and make sure that it is fixed
securely to the pad. Connect a suitable air supply as
recommended. The air inlet used for connecting air supply
has standard 1/4" NPT thread.
Apply the sander lightly to the work for proper sanding.
Take great care when sanding around sharp edges and
surfaces to avoid the disc snagging, i.e. the disc may be
brought to an abrupt stop or considerably slowed which will
cause the tool to kick in the operator's hands. It is always
recommended to use safely glasses and a breathing mask.
The sanding of certain materials may create a hazardous
dust which may require special breathing equipment. Check
before using the tool. Even if the machine has a low noise
level, the actual sanding process may cause a noise level
such that ear protectors will be required.
If there are sharp areas on the material being sanded, safety
gloves are recommended. Do not continue to use abrasive
discs that are worn or clogged. This will make the sanding
process inefficient and the need to apply unnecessarily
high force to the tool. Do not use undersized or oversized
sanding discs. The disc should be no more that 1/4" larger in
diameter than the pad and not smaller than the pad. An air
regulator (14) is located on the side of the motor housing
(1). It can be used to vary the volume of compressed air fed
to the motor which will vary the speed of the sander.
TROUBLESHOOTING
Other factors outside the tool may cause loss of power
or erratic action. Reduced compressor output, excessive
drain on the air line, moisture or restrictions in
air pipes or the use of hose connections of improper
size or poor conditions may reduce air supply. If
outside conditions are in order, and the tool still performs
erratically, disconnect tool from hose and take tool to your
nearest Cornwell authorized service center.
WARRANTY COVERAGE
Cornwell Quality Tools Company (“Cornwell”) warrants this product against defects in material and workmanship for a period of TWO (2) YEARS
from the date of original retail purchase. Subject to the conditions and limitations set forth below, Cornwell will, at its option, either repair or
replace any part of the product(s) that proves defective by reason of improper workmanship or materials.
This warranty does not cover any damage to this product that results from accident, abuse, misuse, natural or personal disaster, or any
unauthorized disassembly, repair, or modification. Repairs, disassembly and modification are only authorized to be made by Cornwell or a
Cornwell Authorized Warranty Center.
WARRANTY SERVICE
In order to have your tool repaired, return the tool to any Cornwell Au tho rized Warranty Center, freight pre paid. Please include a copy of your
proof of pur chase and a brief de scrip tion of the prob lem. The tool will be inspected and if any part or parts are found to be de fec tive in ma te ri al
or work man ship, they will be re paired free of charge, and the re paired tool will be re turned to you freight pre paid.
EXCLUSIONS AND LIMITATIONS
THIS WARRANTY AND THE REMEDIES SET FORTH ABOVE ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, REMEDIES AND CONDITIONS,
WHETHER ORAL OR WRITTEN, EXPRESS OR IMPLIED. CORNWELL SPECIFICALLY DISCLAIMS ANY AND ALL IMPLIED WARRANTIES, INCLUDING,
TO THE EXTENT PERMITTED BY APPLICABLE LAW, ANY WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IF
CORNWELL CANNOT LAWFULLY DISCLAIM IMPLIED WARRANTIES UNDER THIS LIMITED WARRANTY, ALL SUCH IMPLIED WARRANTIES ARE
LIMITED IN DURATION TO THE DURATION OF THIS WARRANTY.
IN NO EVENT SHALL CORNWELL BE LIABLE TO THE PURCHASER OR TO THE USER OF A CORNWELL PRODUCT FOR ANY SPECIAL, INCIDENTAL OR
CONSEQUENTIAL DAMAGES BASED UPON BREACH OF WARRANTY, BREACH OF CONTRACT, NEGLIGENCE, TORT, OR ANY OTHER LEGAL THEORY.
SUCH DAMAGES INCLUDE, WITHOUT LIMITATION, EXPENSES, LOST REVENUES, LOST SAVINGS, LOST PROFITS, OR ANY OTHER INCIDENTAL OR
CONSEQUENTIAL DAMAGES ARISING FROM THE PURCHASE, USE OR INABILITY TO USE THE CORNWELL PRODUCT.
Some states do not allow the exclusion or limitation of incidental or consequential damages or exclusions or limitation on the duration of implied
warranties or conditions, so the above limitations or exclusions may not apply to you. This warranty gives you specific legal rights, and you may
also have other rights that vary by state.
Repair kits and replacement parts are available for many Cornwell products, regardless of whether or not the product is still covered by a
warranty plan.
Cornwell Quality Tools Company •
667 Seville Road • Wadsworth, OH 44281-1094
