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ARO
OPERATOR’S MANUAL
Tool Products
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
SECTION
M35
MANUAL
41
Released: 6-1-96
3/4” CAPACITY IMPACT WRENCH
Model: WG068A-F4-( )
The ARO WG068A-F4 3/4” Impact Wrench is designed for use in the construction industry and
in the production of heavy equipment such as locomotive, bulldozers, tractors and ships.
ARO is not responsible for customer modification of tools for applications on which ARO was
not consulted.
IMPORTANT SAFETY INFORMATION ENCLOSED.
READ THIS MANUAL BEFORE OPERATING TOOL.
IT IS THE RESPONSIBILITY OF THE EMPLOYER TO PLACE THE INFORMATION
IN THIS MANUAL INTO THE HANDS OF THE OPERATOR.
FAILURE TO OBSERVE THE FOLLOWING WARNINGS COULD RESULT IN INJURY.
PLACING TOOL IN SERVICE
Always operate, inspect and maintain this tool in ac-
cordance with American National Standards Institute
Safety Code for Portable Air Tools (ANSI Bl86.1)
For safety, top performance, and maximum durability
of parts, operate this tool at 90 psig (6.2 bar/620 kPa)
maximum air pressure at the inlet with 3/4” (19 mm)
inside diameter air supply hose.
Always turn off the air supply and disconnect the air
supply hose before installing, removing or adjusting
any accessory on this tool, or before performing any
maintenance on this tool.
Do not use damaged, frayed or deteriorated air hoses
and fittings.
Be sure all hoses and fittings are the correct size and
are tightly secured. See Dwg. TPD905-1 for a typical
piping arrangement.
Always use clean, dry air at 90 psig (6.2 bar/620 kPa)
maximum air pressure. Dust, corrosive fumes and/or
excessive moisture can ruin the motor of an air tool.
Do not lubricate tools with flammable or volatile liq-
uids such as kerosene, diesel or jet fuel.
Do not remove any labels. Replace any damaged label.
USING THE TOOL
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Always wear eye protection when operating or per-
forming maintenance on this tool.
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Always wear hearing protection when operating this
tool.
Keep hands, loose clothing and long hair away from
rotating end of tool.
Note the position of the reversing lever before operat-
ing the tool so as to be aware of the direction of rota-
tion when operating the throttle.
Anticipate and be alert for sudden changes in motion
during start up and operation of any power tool.
Keep body stance balanced and firm. Do not over-
reach when operating this tool. High reaction torques
can occur at or below the recommended air pressure.
Tool shaft may continue to rotate briefly after throttle
is released.
Air powered tools can vibrate in use. Vibration,
repetitive motions or uncomfortable positions may be
harmful to your hands and arms. Stop using any tool
if discomfort, tingling feeling or pain occurs. Seek
medical advice before resuming use.
Use accessories recommended by ARO.
Use only impact sockets and accessories. Do not use
hand (chrome) sockets or accessories.
Impact wrenches are not torque wrenches. Connec-
tions requiring specific torque must be checked with a
torque meter after fitting with an impact wrench.
This tool is not designed for working in explosive at-
mospheres.
This tool is not insulated against electric shock.
The use of other than genuine ARO replacement parts may result in safety hazards, decreased tool performance,
and increased maintenance, and may invalidate all warranties.
Repairs should be made only by authorized trained personnel. Consult your nearest ARO Tool Products Authorized
Servicenter.
For parts and service information, contact your local ARO distributor, or the Customer Service Dept. of the Ingersoll-Rand Distribution Center,
White House, TN at PH: (615) 6724321, FAX: (615) 672-0601
ARO Tool Products
Ingersoll-Rand Company
ARO
1725 U.S. No. 1 North
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P.O. Box 8000
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Southern Pines, NC 283884000
©1996 INGERSOLL-RAND COMPANY. PRINTED IN U.S.A.
Part of worldwide Ingersoll-Rand