To reduce risk of injury, everyone using, installing,
repairing, maintaining, changing accessories on, or
working near this tool must read and understand
these instructions before performing any such task.
The goal of Chicago Pneumatic is to produce tools that help you work safely and
efficiently. The most important safety device for this or any tool is YOU. Your
care and good judgment are the best protection against injury. All possible
hazards cannot be covered here, but we have tried to highlight some of the
important ones.
We, Chicago Pneumatic Tool Company,
USA,
declare under our sole responsibility that the product to which this declaration relates, is in
conformity with the requirements of the Council Directive of June 1989 on the approximation
of the laws of the Member States relating to machinery (89/392/EEC).
1800 Overview Drive, Rock Hill, SC 29730
Machine
Name
CP776 Series Impact Wrench
Machine
Type
Assembly Power Tool for Threaded Fasteners - No other use is
permitted.
Serial
No.
Tools with No. 96337A or higher
Technical
Data
3/4" Sq. Dr. Std.
Air pressure 90 psi (6.2 bar)
Torque range 200-750ft.-lb. (270-1000 Nm)
Ult. torque @ 90 psi (6.2 bar) 1150 ft.-lb. (1540 Nm)
Harmonized
Standards
Applied
EN292
National
Standards
Applied
ISO 8662-7, Pneurop PN8NTC1.2
Name
And
Position
Of
Issuer
W.A. LeNeveu, President, Chicago Pneumatic Tool
Company
Signature
Of
Issuer
Place
And
Date
Of
Issue
Utica, NY 13501 USA, December 1, 1996
Model "A"
CA155412 Rev. C
CP776 Series
Impact Wrench
Air Supply Requirements
Lubrication
Sound pressure level 99.1 dB(A) in accordance with Pneurop PN8NTC1.2. For sound
power, add 10 dB(A).
Maintenance
1. Supply tool with 90 psig (6.2 bar) of clean, dry air. Higher pressure drastically reduces
tool life.
2. Connect tool to air line using pipe, hose, and fitting sizes shown in the diagram on page
12.
3. Minimum compressor requirement: 3 hp (2238 w), 60 gallon (227 l) air tank.
1. Use an air line lubricator with SAE #10 oil, adjusted to two (2) drops per minute. If an air
line lubricator cannot be used, add air motor oil to the inlet once a day.
2. Lube clutch parts with Chicago Pneumatic Clutch Grease CP131898 at each
maintenance period.
Operation
This impact wrench is equipped with a regulator to enable adjustment of output power.
Turn the regulator knob counterclockwise for maximum power, clockwise to reduce
power.
Noise & Vibration Declaration*
2
Vibration value 6.8 m/s , re. ISO 8662-7.
1. Disassemble and inspect air motor and impacting clutch every three (3) months if the
tool is used every day. Replace damaged or worn parts.
2. High wear parts are underlined in the parts list.
3. To keep downtime to a minimum, the following service kits, detailed on page 12, are
recommended: CA149158 Tune-Up Kit, CA149159 Repair Kit, CA149160 Repair Kit
* These declared values were obtained by laboratory type testing in compliance with the stated standards and are not
adequate for use in risk assessments. Values measured in individual work places may be higher than the declared values. The
actual exposure values and risk of harm experienced by an individual user are unique and depend upon the way the user
works, the workpiece and the workstation design, as well as upon the exposure time and the physical condition of the user. We,
Chicago Pneumatic, cannot be held liable for the consequences of using the declared values, instead of values reflecting the
actual exposure, in an individual risk assessment in a work place situation over which we have no control.
Limited Warranty: The "Products" of the Chicago Pneumatic Tool Company ("CP") are warranted to be
free from defects in material and workmanship for one year from the date of purchase. This Warranty
applies only to Products purchased new from CP or its authorized dealers. Of course, this Warranty
does not apply to products which have been abused, misused, modified, or repaired by someone other
than CP or its Authorized Service Representatives. If a CP Product proves defective in material or
workmanship within one year after purchase, return it to any CP Factory Service Center or Authorized
Service Center for CP tools, transportation prepaid, enclosing your name and address, adequate proof
of date of purchase, and a short description of the defect. CP will, at its option, repair or replace defective
Products free of charge. Repairs or replacements are warranted as described above for the remainder
of the original warranty period. CP's sole liability and your exclusive remedy under this Warranty is
limited to repair or replacement of the defective Product.
(There
Are
No
Other
Warranties
Expressed
Or
Implied
And
CP
Shall
Not
Be
Liable
For
Incidental,
Consequential,
Or
Special
Damages,
Or
Any
Other
Damages,
Costs
Or
Expenses
Excepting
Only
The
Cost
Or
Expense
Of
Repair
Or
Replacement
As
Described
Above.)
adapters absorb impact power and could break. Use deep sockets wherever
possible.
!
Never operate the tool off of the work. It may run too fast and cause the accessory
to be thrown off the tool.
!
Serious injury can result from over-torqued or under-torqued fasteners, which
can break, or loosen and separate. Released assemblies can become
projectiles. Assemblies requiring a specific torque must be checked using a
torque meter.
Note: So-called "click" torque wrenches do not check for potentially dangerous
over-torque conditions.
Workplace Hazards
!
Slip/Trip/Fall is a major cause of serious injury or death. Beware of excess hose
left on the walking or work surface.
!
High sound levels can cause permanent hearing loss. Use hearing protection as
recommended by your employer or OSHA regulation (see 29 CFR part 1910).
!
Maintain a balanced body position and secure footing.
!
Be in control of the throttle at all times. Do not get caught between the tool and the
work.
!
Repetitive work motions, awkward positions and exposure to vibration can be
harmful to hands and arms. If numbness, tingling, pain or whitening of the skin
occurs, stop using the tool and consult a physician.
!
Avoid inhaling dust or handling debris from the work process which can be
harmful to your health. Use dust extraction and wear respiratory protective
equipment when working with materials which produce airborne particles.
!
Proceed with care in unfamiliar surroundings. Be aware of potential hazards
created by your work activity. This tool is not insulated for coming into contact with
electric power sources.
!
Some dust created by power sanding, sawing, grinding, drilling and other
construction activities contains chemicals known to the State of California to
cause cancer and birth defects or other reproductive harm. Some examples of
these chemicals are:
- Lead from lead based paints
- Crystalline silica bricks and cement and other masonry products
- And Arsenic and chromium from chemically-treated rubber
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 dust masks that are
specially designed to filter out microscopic particles.
Additional Safety Topics
!
This tool and its accessories must not be modified.
!
This tool is not recommended for use in explosive atmospheres.
!
Operators and maintenance personnel must be physically able to handle the bulk,
weight and power of the tool.
!
For tools using the pin and O-ring socket retention system, use the O-ring to
securely retain the socket pin.
For Additional Safety Information Consult:
!
Your employer union and/or trade association.
!
US Department of Labor (OSHA); www.osha.gov; Council of the European
Communitieseurope.osha.eu.int.
!
“Safety Code For Portable Air Tools” (B186.1) available from: www.ansi.com
!
“Safety Requirement For Hand-Held Non-Electric Power Tools” available from:
European Committee for Standardization, www.cenorm.be
Air Supply And Connection Hazards
!
Air under pressure can cause severe injury.
!
Always shut off air supply, drain hose of air pressure and disconnect tool from air
supply when not in use, before changing accessories or when making repairs.
!
Never direct air at yourself or anyone else.
!
Whipping hoses can cause serious injury. Always check for damaged or loose
hoses and fittings.
!
Do not use quick disconnect couplings at tool. See instructions for correct set-up.
!
Whenever universal twist couplings are used, lock pins must be installed.
!
Do not exceed maximum air pressure of 90 psi (6.2 bar) or as stated on tool
nameplate.
Entanglement Hazards
!
Keep away from rotating drive.
!
Do not wear jewelry or loose clothing.
!
Choking can occur if neckwear is not kept away from tool and accessories.
!
Scalping can occur if hair is not kept away from tool and accessories.
!
Avoid direct contact with accessories during and after use. Gloves will reduce the
risk of cuts or burns.
!
Use only proper accessory retainers (see parts list). Use deep sockets wherever
possible.
Projectile Hazards
!
Always wear impact-resistant eye and face protection when involved with or near
the operation, repair or maintenance of the tool or changing accessories on the
tool.
!
Be sure all others in the area are wearing impact-resistant eye and face
protection.
!
Even small projectiles can injure eyes and cause blindness.
!
Do not use hand sockets. Use only impact wrench sockets in good condition.
!
Sockets in poor condition or hand sockets used with impact wrenches can
shatter.
!
Always use the simplest hook-up possible. Long, springy extension bars and
