Cornwell Tools CAT350HD User manual

CAT350HD 1 08/14/12
Operating Instructions • Warning Information • Parts Breakdown
CAT350HD
3/8" Dr.
Heavy Duty
Reversible Air Drill
Chuck Size ...........................3/8"
Rated Horsepower ................. 0.5 h.p.
Max. Torque..................... 3.69 ft-lbs
Free Speed ......................1,800 RPM
Average Air Consumption ........... 3.4 cfm
Sound Pressure Level ................82 dBA
Vibration Level M/S2................0.4 M/S2
Overall Length.......................7.63"
Weight ........................... 2.4 Lbs
Air Inlet ......................... 1/4" NPT
Minimum Hose Size ................3/8" HD
Side Handle Included (yes/no) ............ No
Recommended Air Pressure ............90 psi
SPECIFICATIONS
Some dust created by power sanding, sawing, grinding, drilling, and other construction
activities contains chemicals known to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
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Your risk from these exposures varies, depending on how often you do this type of
work. To reduce your exposure to these chemicals: work in a well ventilated area, and
work with approved safety equipment, such as those dust masks that are specially
designed to filter out microscopic particles.
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Copyright © Professional Tool Products, 2012
All rights reserved.

CAT350HD 2 08/14/12
WARNING - FOLLOW THESE RULES FOR SAFE OPERATION!
This Instruction Manual Contains
Important Safety Information.
Read THIS INSTRUCTION MANUAL
Carefully and understand ALL
INFORMATION Before Operating THIS Tool.
• Always operate, inspect and maintain
this tool in accordance with American
National Standards Institute Safety Code of
Portable Air Tools (ANSI B186.1) and any
other applicable safety codes and
regulations.
• For safety, top performance and
maximum durability of parts, operate this
tool at 90 psig/6.2 bar max air pressure with
3/8" diameter air supply hose.
• Always wear impact-resistant eye and
face protection when operating or
performing maintenance on this tool.
Always wear hearing protection when
using this tool.
• Highsoundlevelscancause permanent
hearing loss. Use hearing protection as
recommended by your employer or OSHA
regulation.
• Keepthetoolinefficientoperating
condition.
• Operators and maintenance personnel
must be physically able to handle the bulk,
weight and power of this tool.
• Air under pressure can cause severe
injury. Never direct air at yourself or others.
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. Failure to do
so could result in injury. Whip hoses can
cause serious injury. Always check for
damaged, frayed or loose hoses and
fittings, and replace immediately. Do not
use quick detach couplings at tool. See
instructions for correct set-up.
•Air powered tools can vibrate in
use. Vibration, repetitive motions or
uncomfortable positions over extended
periods of time may be harmful to your
hands and arms. Discontinue use of tool if
discomfort, tingling feeling or pain occurs.
Seek medical advice before resuming use.
• Place the tool on the work before
starting the tool. Do not point or indulge
in any horseplay with this tool.
• Slipping, tripping and/or falling while
operating air tools can be a major cause of
serious injury or death. Be aware of excess
hose left on the walking or work surface.
• Keepbodyworkingstancebalancedand
firm. Do not overreach when operating
the tool.
• Anticipate and be alert for sudden
changes in motion during start up and
operation of any power tool.
• Do not carry tool by the hose. Protect
the hose from sharp objects and heat.
• Toolshaftmaycontinuetorotatebriefly
after throttle is released. Avoid direct
contact with accessories during and after
use. Gloves will reduce the risk of cuts
or burns.
• Keep away from rotating end of tool.
Do not wear jewelry or loose clothing.
Secure long hair. Scalping can occur if hair
is not kept away from tool and accessories.
Choking can occur if neckwear is not kept
away from tool and accessories.
• Drill bits can bind suddenly 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.
• Do not lubricate tools with flammable
or volatile liquids such as kerosene, diesel
or jet fuel.
• Do not force tool beyond its rated
capacity.
• Do not remove any labels. Replace any
damaged labels.

CAT350HD 3 08/14/12
Nipple
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 (over 90 psi; 6.2 bar) raises
performance beyond the rated capacity of the tool, which will shorten tool
life because of faster wear 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 the air tank daily. Clean the air
inlet filter screen on at least a weekly schedule. 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.
LUbRIcATION & mAINTENANcE
Lubricate the air motor daily with quality air tool oil. If no air line oiler is
used, run 1/2 oz. of air tool 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.
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.
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 pressure. Do not force. Too much pressure can cause bit to break
or overheat. Too little pressure will keep bit from cutting and cause it to
overheat. Reduce pressure just before bit cuts through the work. When
bit has penetrated work and is spinning freely, take it from the work while
the motor is running, then turn off drill. If the drill jams in the work,
release throttle immediately.
Disconnect the drill before removing bit and determining cause of
trouble. Do not attempt to free the bit by starting and stopping the motor.
WARRANTY COVERAGE
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 Authorized Warranty Center, freight prepaid. Please include a copy of your
proof of purchase and a brief description of the problem. The tool will be inspected and if any part or parts are found to be defective in material or
workmanship, they will be repaired free of charge, and the repaired tool will be returned to you freight prepaid.
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
Figure 2
Figure 1
Air Inlet

CAT350HD 4 08/14/12
PARTS bREAKDOWN - cAT350HD
Ref. # Item # DESCRIPTION QTY.
1 RS757254P01 Motor Housing 1
2 RS723502 Pin 1
3 RS355HD03 Air Inlet 1
4 RS282704 Trigger 1
5 RS355HD05 Valve Stem 1
6 RS355HD06 Valve Bushing 1
7 RS233A07 O-Ring 1
8 RS24009 O-Ring 1
9 RS76209 O-Ring 1
10 RS355HD10 Reverse Lever 1
11 RS79511 Motor Gasket 1
12 RS79514 End Plate 1
13 RS21114 Ball Bearing 2
14 RS355HD14 Rear End Plate 1
15 RS355HD15 Rotor 1
16 RS78716 Rotor Blade 5
17 RS355HD17 Pin 1
18 RS78718 Cylinder 1
19 RS79519 Front End Plate 1
22 RS79522 Internal Gear 2
Ref. # Item # DESCRIPTION QTY.
23 RS350HD23 Planet Gear (Incl. #25) 3
24 Pin (Incl. w/ #26) 3
25 Needle Bearing (Incl. w/ #23) 3
26 RS79526 Work Spindle (Incl. #24) 1
27 RS21118 Ball Bearing 2
28 RS79534 Clamp Nut 1
29 RS79529 Washer 1
30 RS188935 3/8" Industrial Keyless Chuck 1
31 RS79530 Screw 1
33 RS723533 Exhaust Diffuser 1
34 RS43007 Screw 2
35 RS355HD35 Damping Material 2
38 RS79408N Valve Spring 1
64 RS723564 Decoration Ring 1
65 RS433545 O-Ring 1
69 RS24050 Valve Seat 1
70 RS24051 Valve 1
71 RS24052 Spring 1