3
CAT3125 / CAT3125G
06/12/18
Drain Daily
Regulator
Oiler
Quick Coupler
Leader
Hose
Nipple
Do Not Install
Quick Coupling
Here
Nipple
Filter
Air Supply
Whip Hose
AIR SUPPLY
Tools operate on a wide range of air pressures. It is recommended
that air pressure 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 3/8" NPT.
Line pressure should be increased to compensate for unusually long
air hoses (over 25 feet). Minimum hose diameter should be 1/2" 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. The amount of oil to be used is 1 ounce.
Overfilling will cause a reduction in the power of the tool.
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
The air regulator knob can be used to adjust torque to the
approximate tightness of a known fastener. To set the tool to desired
torque, select a nut or screw of known tightness of the same size,
thread pitch and thread condition as those on the job. Turn air
regulator knob to low position, apply wrench to nut and gradually
increase power (turn air regulator knob to admit more air) until
nut moves slightly in the direction it was originally set. The tool is
now set to duplicate that tightness - note air regulator knob setting
for future use. When tightening nuts not requiring critical torque
values, run nut up flush and then tighten an additional one-quarter
to one-half turn (slight additional turning is necessary if gaskets
are being clamped). For additional power needed on disassembly
work, turn air regulator knob to its fully open position. This impact
wrench is rated at 1" SAE bolt size. Rating must be down graded for
spring U bolts, tie bolts, long cap screws, double depth nuts, badly
rusted conditions and spring fasteners as they absorb much of the
impact power. When possible, clamp or wedge the bolt to prevent
springback.
Soak rusted nuts in penetrating oil and break rust seal before
removing with impact wrench. If nut does not start to move in three
to five seconds use a larger size impact wrench. Do not use impact
wrench beyond rated capacity as this will drastically reduce tool life.
The air regulator knob is also used to change the direction of the
tool. When the air regulator knob is turned to the right, the tool is
in a forward or right hand direction. When the air regulator knob
is turned to the left, the direction is reversed or left hand direction.
NOTE: Actual torque on a fastener is directly related to joint
hardness, tool speed, condition of socket and the time the tool is
allowed to impact.
Use the simplest possible tool-to-socket hook up. Every connection
absorbs energy and reduces power.
WARRANTY
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
