Cornwell Tools CAT350 User manual

CAT350 1 Rev. 01/20/04
Operating Instructions • Warning Information • Parts Breakdown
CAT350
1/2" Dr.
Twin Hammer
Impact Wrench
ALWAYS READ
INSTRUCTIONS
BEFORE USING
POWER TOOLS
ALWAYS WEAR
SAFETY GOGGLES
WEAR HEARING
PROTECTION
AVOID
PROLONGED
EXPOSURE TO
VIBRATION
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:
• lead from lead-based paints,
• crystalline silica from bricks and cement
and other masonry products, and
• arsenic and chromium from
chemically-treated lumber.
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.
Working Torque: . . . . . . . . . . . . .25-300 ft.lbs.
Maximum Torque: . . . . . . . . . . . . . .450 ft.lbs.
Free Speed: . . . . . . . . . . . . . . . . . . . .7000 rpm
Rec. Air Pressure: . . . . . . . . . . . . . . . . . .90 psi
Air Inlet: . . . . . . . . . . . . . . . . . . . . . . .1/4" npt
Rec Hose Size: . . . . . . . . . . . . . . . . . . . . . .3/8"
Overall Length . . . . . . . . . . . . . . . . . . . .6 3/4"
Weight . . . . . . . . . . . . . . . . . . . . . . . . .5.6 lbs.
Sound Level . . . . . . . . . . . . . . . . . . . . .102dBA
SPECIFICATIONS
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CAT350 2 Rev. 01/20/04
THIS INSTRUCTION MANUAL CONTAINS
IMPORTANT SAFETY INFORMATION.
READ THIS INSTRUCTION MANUAL CAREFULLY
AND UNDERSTAND ALL INFORMATION
BEFOREOPERATING THIS TOOL.
• Always operate, inspect and maintain
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 performance 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 impact-resistant eye and
face protection when operating or perform-
ing maintenance on this tool. Always wear
hearing protection when using this tool.
• High sound levels can cause permanent
hearing loss. Use hearing protection as
recommended by your employer or OSHA
regulation.
• Keep the tool in efficient operating
condition.
• Operators and maintenance personnel
must be physically able to handle the bulk,
weight and power of this tool.
• Air under pressure can cause severe 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 vibrate 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 before starting
the 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 working stance balanced
and firm. Do not overreach when operating
the tool.
• Anticipate and be alert for sudden
changes in motion during start up and
operation of any power tool.
• Do not carry tool by the hose. Protect the
hose from sharp objects and heat.
• Tool shaft may continue to rotate briefly
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 rotating 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.
• Impact wrenches are not torque control
devices. Fasteners with specific torque
requirements must be checked with
suitable torque measuring devices after
installation with an impact wrench.
• Use only impact wrench sockets and
accessories on this tool. Do not use hand
sockets and accessories.
• Do not lubricate tools with flammable or
volatile liquids such as kerosene, diesel or
jet fuel.
• Do not force tool beyond its rated capacity.
• Do not remove any labels. Replace any
damaged labels.
FAILURE TO OBSERVE THESE WARNINGS COULD RESULT IN INJURY.
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CAT350 3 Rev. 01/20/04
Ref. # Item # DESCRIPTION QTY
1 RS350TH01 Air Inlet Bushing 1
2 RS350TH02 Throttle Valve Spring 1
3 RS350TH03 Throttle Valve 1
4 RS350TH04 O-Ring 1
5 RS350TH05 Valve Stem 1
6 RS350TH06 Motor Housing 1
6-1 RS350TH06-1 Grease Fitting 1
7 RS350TH07 Trigger Pin 1
8 RS350TH08 Reverse Valve Knob 1
9 RS350TH09 Screw 1
10 RS350TH10 Trigger 1
11 RS350TH11 Bushing Seal 2
12 RS350TH12 Reverse Valve Bushing 1
13 RS350TH13 Detent Bushing 1
14 RS350TH14 Reverse Valve 1
15 RS350TH15 Detent Spring 1
16 RS350TH16 Detent Ball 1
17 RS350TH17 Gasket 1
18 RS350TH18 Retaining Ring 1
19 RS227B25 Ball Bearing 2
Ref. # Item# DESCRIPTION QTY
20 RS350TH20 Rear Plate 1
21 RS350TH21 Rotor Blade 6
22 RS350TH22 Rotor 1
23 RS350TH23 Cylinder 1
24 RS350TH24 Front Plate 1
25 RS350TH25 Guide Pin 1
25-1 RS85324 Ball Bearing 1
26 RS350TH26 Conical Washer 2
26-1 RS350TH26-1 Hammer Frame Rear Spacer 1
27 RS350TH27 Hammer Cage 1
28 RS350TH28 Hammer 2
29 RS350TH29 Hammer Pin 2
30 RS350TH30 Anvil 1
31 RS350TH31 Retainer O-Ring 1
32 RS350TH32 Socket Retainer 1
33 RS350TH33 Anvil Bushing 1
34 RS350TH34 Hammer Housing Pilot Ring 1
35 RS350TH35 Gasket 1
36 RS350TH36 Hammer Housing 1
38 RS350TH38 Screw / Spring Washer 3
PARTS BREAKDOWN - CAT-350
CAT350_OpMan_012204 1/22/04 10:59 AM Page 3

CAT350 4 Rev. 01/20/04
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 psig; 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
Lubricate the air motor daily with quality air tool oil. If
no air line oiler is used, run a teaspoon 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. The amount of oil to be used is 1 ounce.
Overfilling will cause a reduction in the power of the tool.
OPERATION
The air regulator knob can be used as an air throttle, if
there are no other means of regulating air. Turn the air
regulator knob all the way to position 4 for maximum
power.
The air regulator 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 to low position,
apply wrench to nut and gradually increase power (turn
regulator 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 regulator 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 regulator to its
fully open position. This impact wrench is rated at 3/8"
USS 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 reversing valve is used to change the rotation of the
tool. When the valve is out, the tool is in a forward or
right hand rotation. When the valve is pushed in, the
rotation is reverse or left hand.
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.
Operating Instructions • Warning Information • Parts Breakdown
Nipple
WARRANTY
Cornwell warrants its air tools for a period of 1 year to the consumer. We will repair any air tool covered under this
warranty which proves to be defective in material or workmanship during the warranty period. 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.
This warranty gives you specific rights. You may also have other rights which vary from state to state.
The foregoing obligation is Cornwell’s sole liability under this or any implied warranty and under no circumstances
shall Cornwell be liable for any incidental or consequential damages.
Note: Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
limitation or exclusion may not apply to you.
CAT350_OpMan_012204 1/22/04 10:59 AM Page 4