Team,
As follow we had 2 ANMs/CeRMATS related with a Chipping hammer (gun) which become a highlight in
safety when it operated on barges especially when it used on No HOT WORK Activities Allowed Area (No
Hazardous Zones) potential to HC Gas and Liquid discharges.
By then we would like to highlight this as another lesson learn related with the Power
Mechanical/Electrical Tool. Which we know the Chipping Hammer (Gun) were identified as a portable
power tool where each units may have different power systems such as Electrical, Pneumatic, Hydraulic
(?). Although mostly what barge had are typed pneumatic use the
energy of compressed air instead of electricity. Portable pneumatic
tools are used most around a shop where compressed air outlets are readily accessible. Because
of the limited outlets for compressed air in barge stations, the use of pneumatic power tools is
not as widespread as electric tools.
PNEUMATIC CHIPPING HAMMER
The pneumatic chipping hammer consists basically of a steel piston that is reciprocated
(moved backward and forward alternately) in a steel
barrel by compressed air. On its forward stroke the
piston strikes the end of the chisel, which is a sliding fit
in a nozzle pressed into the barrel. The rearward stroke
is cushioned by compressed air to prevent any metal-to-
metal contact. Reciprocation of the piston is automatically controlled by a valve located on the rear
end of the barrel. Located on the rear end of the barrel is a grip handle, containing a throttle valve.
The pneumatic hammer may be used for beveling; caulking or chipping operations; and for drilling in
brick, concrete, and other chipping metal deck. When nearing the end of a cut, ease off on the throttle
lever to reduce the intensity of the blows. This will avoid any possibility of the chip or tool flying. If for
any reason you have to lay the chipping hammer down, always remove the attachment tool from the
nozzle
General Instructions
1. Never operated it at front of Well platform’s at all or in hazardous zones area (advice us)
2. Do not operate power tools in explosive atmospheres, such as in the presence of flammable
liquids, gases, or dust. Power tools create sparks which may ignite the dust or fumes.
3. Read all the manufacturer's directions. It's imperative you know all about your specific chipping
hammer to avoid personal injury and property damage.
4. Use proper safety equipment. Chipping hammers throw debris and dust, metal particles. Be sure
you have safety gloves, long sleeves (Coverall), and most importantly, safety goggles to protect
your eyes (plus Face Shield/Visor) and a mask to protect your lungs.
5. Do not wear loose clothing or jewelry. Contain long hair. Keep your hair, clothing, and gloves
away from moving parts. Loose clothes, jewelry, or long hair can be caught in moving parts.
Keep handles dry, clean and free from oil and grease.
6. Grease your bit. Use the bit grease that came with your chipping hammer or buy the grease
recommended by the manufacturer
7. Install the proper chisel for the job. Also make sure the chisel is properly sized for the job.
8. Clean your chipping hammer after the job is done. Because of the dust and debris made with a
chipping hammer, it's imperative that it be cleaned properly after every job. This gives your
chipping hammer's motor the longest life possible.
9. Clear the air hose of dust and water by running air without the tool attached for five to 10
seconds---water is a by-product of air pressurization. Don't connect the compressor to the tool
yet.
10. Thread the retainer into the end of the barrel. Different tools have different retainer; for
example to use the chisel, use a chisel-specific retainer. Push the spring to one side and add the
chisel into the barrel, letting the spring tension rest against the tool. The tool must be between
the barrel and retaining part of the spring.
11. Attach the air hammer to the air compressor while the compressor is off for best safety practice.
That way the tool can't be accidentally discharged if it was inadvertently left switched on.
12. Turn the compressor on and allow pressure to build, then hold the chisel to the work surface
and turn the air hammer on. Perform the work by grasping the air hammer firmly and keeping
the chisel or tool in contact with the work surface when the air hammer is on.
13. Do not force tool. Use the correct tool for your application. The correct tool will do the job
better and safer at the rate for which it is designed.
14. Do not use tool if switch does not turn it "ON" or "OFF". Any tool that cannot be controlled with
the switch is dangerous and must be repaired
15. Control the hand held of the chipping hammer properly in this way vibrations will be controlled
and maneuverability is maintained.
Especially additional for Portable Chipping Hammer (electric) :
WARNING! READ AND UNDERSTAND ALL INSTRUCTIONS. Failure to follow all instructions listed
below, may result in electric shock, fire and/or serious personal injury. PRINT AND SAVE THESE
INSTRUCTIONS.
1. Grounded tools must be plugged into an outlet properly installed and grounded in accordance
with all codes and ordinances. Never remove the grounding prong or modify the plug in any
way. Do not use any adaptor plugs. Check with a qualified electrician if you are in doubt as to
whether the outlet is properly grounded. If the tools should electrically malfunction or break
down, grounding provides a low resistance path to carry electricity away from the user.
2. Double Insulated tools are equipped with a polarized plug (one blade is wider than the other).
This plug will fit in a polarized outlet only one way. If the plug does not fit fully in the outlet,
reverse the plug. If it still does not fit, contact a qualified electrician to install a polarized
outlet. Do not change the plug in any way. Double insulation eliminates the need for the
three wire grounded power cord and grounded power supply system. Before plugging in the
tool, be certain the outlet voltage supplied is within the voltage marked on the nameplate. Do
not use "AC only" rated tools with a DC power supply.
3. Avoid body contact with grounded surfaces such as pipes, radiators, ranges and refrigerators.
There is an increased risk of electric shock if your body is grounded. If operating the tool in
damp locations is unavoidable, a Ground Fault Circuit Interrupter must be used to supply the
power to your tool. Electrician's rubber gloves and footwear will further enhance your personal
safety.
4. Do not expose power tools to rain or wet conditions. Water entering a power tool will increase
the risk of electric shock.
5. Do not abuse the cord. Never use the cord to carry the tools or pull the plug from an outlet.
Keep cord away from heat, oil, sharp edges or moving parts. Replace damaged cords
immediately. Damaged cords increase the risk of electric shock.
6. When operating a power tool outside, use an dedicated outdoor extension cord. These cords
are rated for outdoor use and reduce the risk of electric shock.
7. Stay alert, watch what you are doing, and use common sense when operating a power tool.
Do not use tool while tired or under the influence of drugs, alcohol, or medication. A moment
of inattention while operating power tools may result in serious personal injury.
8. Avoid accidental starting. Be sure switch is off before plugging in. Carrying tools with your
finger on the switch or plugging in tools with the switch on invites accidents.
9. Remove adjusting keys or wrenches before turning the tool on. A wrench or a key that is left
attached to a rotating part of the tool may result in personal injury.
10. Do not overreach. Keep proper footing and balance at all times. Proper footing and balance
enables better control of the tool in unexpected situations.
11. Use safety equipment. Always wear eye protection. Dust mask, non-skid safety shoes, hard hat,
or hearing protection must be used for appropriate conditions.
12. Use clamps or other practical way to secure and support the work piece to a stable platform.
Holding the work by hand or against your body is unstable and may lead to loss of control.
13. Disconnect the electrical plug from the power source before making any adjustments,
changing accessories, or storing the tool. Such preventive safety measures reduce the risk of
starting the tool accidentally.
14. Store idle tools out of reach many people and other untrained persons. Tools are dangerous in
the hands of untrained users.
15. Maintain electrical tools with care. Keep cutting tools sharp and clean. Properly maintained
tools with sharp cutting edge are less likely to bind and are easier to control. Do not use a
damaged tool. Tag damaged tools "Do not use" until repaired. Any alteration or modification is a
misuse and may result in a dangerous condition.
16. Check for misalignment or binding of electrical moving parts, breakage of parts, and any other
condition that may affect the tool's operation. If damaged, have the tool serviced before
using. Many accidents are caused by poorly maintained tools.
17. Use only electrical accessories that are recommended by the manufacturer for your model.
Accessories that may be suitable for one tool, may become hazardous when used on another
tool.
