Cornwell Tools CAT-3790-6, Инструкция по эксплуатации

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CAT-3790-6 Rev. 05/8/07
Operating Instructions • Warning Information • Parts Breakdown
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 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
1/2" NPT. Line pressure should be increased to compensate
for unusually long­ air hoses (over 25 feet). Minimum hose
diameter should be 3/4" 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 1/2 oz. 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.
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 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 one­quarter 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. 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 is also used to chang­e the rotation of the tool.
When the valve is turned to the rig­ht, the tool is in a forward
or rig­ht hand rotation. When the valve is turned to the left, 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.
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 Tools authorized service center.
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 descrip­
tion 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
.
Air inlet
Air reGUlAtOr