CAT250
3
Rev. 07/12/16
Figure 2
Variable Speed
Trigger
Forward/Reverse
Lever
Air Inlet
AIR SUPPLY
Tools operate on a wide range of air pressures. It is recommended
that air pressure of these tools measures 90 psig at the tool with the
trigger fully depressed and no load applied to the tool. Higher pressure
(over 90 psig; 6.2 bar) raises performance beyond the rated capacity
of the tool, which will shorten tool life and could cause injury.
Always use clean, dry air. Dust, corrosive fumes and/or water in the
air line will cause damage to the tool. Drain water from air lines
and compressor prior to running tool. Clean the air inlet filter screen
weekly. The recommended hookup procedure can be viewed in the
above figure.
The air inlet used for connecting air supply has standard 1/4" NPT.
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 and be tightly
secured.
Ensure an accessible emergency shut off valve has been installed in
the air supply line and make others aware of its location.
LUBRICATION
Lubricate the air motor daily with high quality air tool oil. If no air
line oiler is used, run 1/2 oz. 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.
WARNING:
After an air tool has been lubricated, oil will discharge
through the exhaust port during the first few seconds of operation.
The exhaust port must be covered with a towel before applying air
pressure to prevent serious injury.
OPERATION
Locate center of new hole by using a center punch. Place drill bit tip
in punch mark. Hold drill square with work and start motor. Apply
steady, even pres sure. Do not force. Too much pressure can cause
bit to break or over heat. Too little pressure will keep bit from cutting
and cause it to overheat. Reduce pres sure just before bit cuts
through the work. When bit has pen e trat ed work and is spin ning
freely, take it from the work while the motor is run ning, then turn
off drill. If the drill jams in the work, release throttle immediately.
Dis con nect the drill before re mov ing bit and de ter min ing cause of trou-
ble. Do not attempt to free the bit by starting and stopping the motor.
The reversing valve is used to change the direction of the tool.
When the valve is out, the tool is in forward or right hand direction.
When the valve is pushed in, the tool is in reverse or left hand
direction.
Drill bits can bind suddenly and cause rotation of the work piece or tool,
causing injury to arms and/or shoulders. Enough torque is generated
to cause falls. Always use sharp bits. Use less downward pressure at
breakthrough.
Never use dull, chipped or damaged accessories. Never cool a hot
accessory in water as brittleness and early failure can result, Accessory
breakage or tool damage may result from prying. Take smaller bites to
avoid getting stuck.
NOTE: Always turn off the air supply, drain hose of air pressure
and detach tool from air supply before installing, removing or
adjusting any accessory on this tool, or before performing any
maintenance on this tool.
NOTE: During operation, safety goggles must always be worn to
guard against flying debris (users and bystanders).
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. Grit or gum deposits in the tool may cut power
and may be corrected by cleaning the air strainer and flushing
out the tool with gum solvent oil or an equal mixture of SAE #10 and
kerosene. If outside
conditions are in order,
disconnect tool from
hose and take tool to
your nearest authorized
service center.
WARRANTY
Cornwell Quality Tools Company (“Cornwell”) warrants this product against defects in material and workmanship for a period of ONE (1) YEAR 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.
Drain Daily
Regulator
Oiler
Quick Coupler
Leader
Hose
Nipple
Do Not Install
Quick Coupling
Here
Nipple
Filter
Air Supply
Whip Hose
Figure 1
