Milwaukee 7220-20 Operator's Manual page 2

GENERAL SAFETY INSTRUCTIONS
Important safety instructions. Save
DANGER
these instructions pertaining to a
risk of injury or death.
When using tools, basic precautions
WARNING
should always be followed, including
the following:
GENERAL
•To reduce the risk of injury, read all instructions
before using the tool.
WORK AREA
•Keep the work area clean and well lighted. Cluttered
benches and dark areas increase the risk of injury.
•Do not operate the tool in explosive atmospheres,
such as in the presence of fl ammable liquids,
gases, or dust. The tool is able to create sparks
resulting in the ignition of the dust or fumes.
•Keep bystanders, children, and visitors away while
operating the tool. Distractions are able to result in
the loss of control of the tool.
•Know what is behind your workpiece. A fastener
could travel through the workpiece and out the other
side, striking a bystander and causing serious injury.
• Avoid performing operations where
DANGER
the fastener may contact hidden
wiring. Contact with a "live" wire will make exposed
metal parts of the tool "live" and shock the operator,
resulting in serious injury or death. Contact a qualifi ed
electrician to ensure a safe work environment exists.
PERSONAL SAFETY
•Stay alert. Watch what you are doing and use common
sense when operating the tool. Do not use the tool
while tired or under the infl uence of drugs, alcohol, or
medication. A moment of inattention while operating the
tool increases the risk of injury to persons.
•Dress properly. Do not wear loose clothing or jewelry.
Contain long hair. Keep hair, clothing, and gloves away
from moving parts. Loose clothes, jewelry, or long hair
increases the risk of injury to persons as a result of
being caught in moving parts.
•Avoid unintentional starting. Remove fi nger from
the trigger when not driving fasteners. Be sure the
trigger is not pulled before connecting to the air supply.
Do not carry the tool with your fi nger on the trigger or
connect the tool to the air supply with the trigger pulled.
•Do not overreach. Keep proper footing and balance
at all times. Proper footing and balance enables better
control of the tool in unexpected situations.
•Use safety equipment. A dust mask, non-skid safety
shoes and a hard hat used for appropriate conditions
will reduce personal injuries.
•The operator and other people in the work area
must wear eye protection in accordance with ANSI
Z87.1. Eye protection does not fi t all operators in
the same way. Make sure the eye protection chosen
has side shields or provides protection from fl ying
debris both from the front and sides. The employer
is responsible for enforcing the use of eye protection
by the operator and other people in the work area.
When required, wear head protection in accordance
with ANSI Z89.1.
•Always wear ear protectors when using the tool
for extended periods. Prolonged exposure to high
intensity noise is able to cause hearing loss.
•Do not carry an air hose or a tool connected to
an air hose when climbing ladders, rigging or
scaffolding.
•Do not attach an air hose or tool connected to an
air hose to your body when working at elevated
heights. Attach the hose to the structure to reduce
the risk of loss of balance and injury if the hose shifts.
•Always assume that the tool contains fasten-
ers. Careless handling of the tool can result in
unexpected fi ring of fasteners and personal injury.
•Do not point the tool towards yourself or anyone
nearby. Unexpected triggering will discharge the
fastener causing an injury.
•Do not nail on top of another nail. This can cause
the nail to be defl ected and hit someone, or cause the
tool to react and result in a risk of injury to persons.
TOOL USE AND CARE
•Use clamps or another practical way to secure and
support the workpiece to a stable platform. Holding
the work by hand or against the body is unstable and
is able to lead to loss of control.
•Do not force the tool. Use the correct tool for the
application. The correct tool will do the job better and
safer at the rate for which the tool is designed.
•Do not use the tool if the trigger does not turn the
tool on or off. Any tool that cannot be controlled with
the trigger is dangerous and must be repaired.
•Disconnect the tool from the air source, then
empty the magazine before making adjustments,
doing tool maintenance, clearing jams, touching
the workpiece contact or tool is outside your
supervision or control. Verify the tool is empty and
there is no residual pressure in the tool prior to per-
forming these actions. Such precautionary measures
reduce the risk of injury to persons.
•Disconnect the tool from the power source when
the fastener jams in the tool. While removing
a jammed fastener, the tool may be accidentally
activated if it is plugged in.
•Use caution while removing a jammed fastener.
The mechanism may be under compression and
the fastener may be forcefully discharged while
attempting to free a jammed condition.
•Store idle tools out of reach of children and other
untrained persons. A tool is dangerous in the hands
of untrained users.
•Maintain the tool with care. A properly maintained tool
reduces the risk of injury. If the tool has been dropped,
received a sharp blow, been run over, etc., perform the
"Required Daily Testing" before further use.
•Check for misalignment or binding of moving parts,
breakage of parts, and any other condition that af-
fects the tool's operation. If damaged, have the tool
serviced before using. Many accidents are caused by
poorly maintained tools. There is an increased risk of
the tool bursting if the tool is damaged.
•Use only those fasteners specifi cally recommend-
ed. Fasteners not identifi ed for use with this tool by the
tool manufacturer are able to result in a risk of injury
to persons or tool damage when used in this tool. See
the "Specifi cations" section for fastener requirements.
•Do not use this tool for fastening electrical ca-
bles. It is not designed for electric cable installation
and may damage the insulation of electric cables
thereby causing electric shock or fi re hazards.
•Use only accessories that are identifi ed by the
manufacturer for the specifi c tool model. Use of an
accessory not intended for use with the specifi c tool
model, increases the risk of injury to persons.
•Do not attempt to modify tool or defeat safety
measures. Serious injury could occur.
2
SERVICE
•a) Tool service must be performed only by qualifi ed
repair personnel.
b) The wrench provided is for tightening screws
during "Required Daily Testing".
c) Use only identical replacement parts recom-
mended by the manufacturer.
•Use only the air tool lubricants supplied with the
tool or specifi ed by the manufacturer. Do not use
other lubricants; they will damage the tool. See "Ac-
cessories" for a list of recommended air tool lubricants.
AIR SOURCE
• Do not use oxygen, combustible
DANGER
gases or bottled gases as a power
source for this tool. The tool will explode and cause
death or serious injury.
•Never connect to an air source that is capable of
exceeding 200 psi. Over pressurizing the tool may
result in bursting, abnormal operation, breakage of
the tool or serious injury to persons. Use only clean,
dry, regulated compressed air at the rated pressure
or within the rated pressure range as marked on the
tool. Prior to using the tool, always verify that the air
source has been adjusted to the rated air pressure or
within the rated air-pressure range. Air compressors
should comply with ANSI B19.3.
SPECIFIC SAFETY INSTRUCTIONS
FOR NAILERS
•Use air supply hoses with a minimum working
pressure rating of 200 psi.
•Use pressure regulators to limit the air pressure
supplied to the tool. Set the regulators to no more
than 120 psi.
•Install only hose couplings that will allow all pres-
sure to be removed from tool when disconnected
from the source. If the wrong fi tting is installed,
pressure may remain in the tool after disconnection,
allowing it to drive a fastener, possibly causing injury.
•Prior to each use, check workpiece contact and
trigger for correct operation. Do not disassemble or
clamp parts of the workpiece contact, trigger, or driv-
ing mechanism. This will cause unexpected actuation,
resulting in serious injury.
•Never point the discharge area of the tool at any
body parts or at other people. Always assume the
tool is loaded and capable of driving a fastener.
•Do not actuate the tool unless the tool is placed
fi rmly against the workpiece. If the tool is not in
contact with the workpiece, the fastener may be
defl ected away from your target.
•Do not engage in horseplay. The discharged fasten-
ers are projectiles capable of causing serious injury.
•When using the tool, ensure the workpiece contact
is securely placed on the workpiece. Hold the tool
fi rmly and be prepared for the recoil.
•Do not remove, tamper with, or otherwise cause
the tool operating controls to become inoperable.
This will cause unexpected actuation, resulting in
serious injury.
•Do not operate a tool if any portion of the tool oper-
ating controls is inoperable, disconnected, altered,
or not working properly. This will cause unexpected
actuation, resulting in serious injury.
•Always keep hands and body away from discharge
area of the tool. Never attempt to clear a jammed
workpiece contact by grasping the discharge area of
the tool. Fasteners discharged from tool can cause
serious injury if they contact hands or body.
•Do not drive fasteners close to the edge of the
workpiece. Fasteners can slip off corners and edges
or penetrate through thin material, making them pro-
jectiles capable of causing serious injury.
•Use the tool only for the intended purpose. Do not
abuse the tool. Do not use as a hammer, stamp or en-
grave information onto parts, drop or impact the tool or
otherwise apply excess force to the tool in use. Do not
mount the tool to stands or modify it for stationary use.
•Do not carry tool by the air hose. Only carry the tool
by the handle with your fi nger off of the trigger.
•Do not use this tool without the safety warning label
in place. If the label is damaged or missing, contact
MILWAUKEE for a free replacement.
FUNCTIONAL DESCRIPTION
1. Workpiece contact
2. Nail guide
3. Exhaust defl ector
4. Actuation selector
5. Trigger
6. 3/8" NPT quick connector
7. Magazine cover
8. Depth of drive adjustment
9. Fastener door lever
10. Nameplate/Warning label (not shown)
11. Fastener door
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10
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SYMBOLOGY
Read operator's manual
Wear eye protection
Keep hands away
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