Milwaukee 7220-20 Operator's Manual
Cat. No. / No de cat.
7220-20
COIL ROOFING NAILER
CLOUEUSE À BOBINE POUR TOITURE
CLAVADORA PARA TECHADO CON ROLLO DE CLAVOS
OPERATOR'S MANUAL
MANUEL de L'UTILISATEUR
MANUAL del OPERADOR
WARNING To reduce the risk of injury, user must read and understand operator's manual.
AVERTISSEMENT Afi n de réduire le risque de blessures, l'utilisateur doit lire et bien
comprendre le manuel.
ADVERTENCIA Para reducir el riesgo de lesiones, el usuario debe leer y entender el manual.
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GENERAL SAFETY INSTRUCTIONS
DANGER
Important safety instructions. Save
these instructions pertaining to a
risk of injury or death.
WARNING
When using tools, basic precautions
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.
•
DANGER
Avoid performing operations where
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 performing 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 affects 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 cables. 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.
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 "Accessories" for a list of recommended air tool lubricants.
AIR SOURCE
•
DANGER
Do not use oxygen, combustible
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 pressure 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 driving 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 operating 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 projectiles 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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5
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11
10
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SYMBOLOGY
Read operator's manual
Wear eye protection
Keep hands away
4
5
only a few drops of oil at a time. Using too much oil
will cause it to collect in the tool and be noticeable
in the exhaust. Do not use detergent oil, WD-40,
transmission fl uid, motor oil, or other lubricants not
specifi cally designated as air tool lubricant. These
lubricants will cause accelerated wear to the seals,
o-rings and bumpers in the tool, resulting in poor tool
performance and frequent maintenance.
2-3 drops of air
tool lubricant
3/8" NPT quick
connector
Adjusting/Removing Shingle Guide
T o adjust the shingle guide, press in the guide button
and slide the guide to the desired location. T o remove
the guide, press in the guide button and slide it toward
the nose of the tool and off of the track.
Guide button
Connecting the Air Supply
DANGER
Do not use oxygen, combustible
gases or bottled gases as a power
source for this tool. The tool will explode and
cause death or serious injury.
WARNING
Always use a coupling that dis-
charges all the compressed air in
the tool at the time the fi tting or hose coupling is
disconnected. Using a coupling that does not
discharge the compressed air could cause unintended operation and serious injury.
Use only clean, dry compressed air with a maximum
pressure of 200 psi. Before connecting the tool to the
air supply, check the air compressor regulator gauge
to be sure it is functioning properly, with a range between 70-120 psi. Air pressure higher than 120 psi
could cause injury and property damage. The correct
pressure is the lowest pressure that will do the job.
To connect the air supply:
1. Remove the plastic plug from the quick connector.
2. Lubricate the quick connector with 2-3 drops air tool
lubricant.
3. Snap the air hose onto the quick connector.
4. Check for air leakage.
NOTE: Use only a 3/8" NPT quick connector . To improve
the seal between the connector and the tool, and to help
protect against oxidation, apply a PTFE tape or paste
to the connector threads before insertion.
Installing Fastener Coils
WARNING
Always point the tool away from
yourself and others when installing
fasteners. Failure to do so could result in injury.
Always make sure the tool's magazine is EMPTY
before connecting to the air supply. The tool may
actuate when the tool is fi rst connected to the air
supply. Always connect the tool to the air supply
before loading nails to prevent injury from unintended actuation.
Never install fasteners with the workpiece contact
or trigger activated. Failure to do so could result
in injury.
Use only recommended fasteners of the correct
size, length, collation angle and head type, as
indicated on the tool's nameplate. Refer to the
"Accessories" section for information on recommended fasteners. Other fasteners could result in
tool malfunction, leading to injury.
Verify
magazine
is empty
Fastener
door lever
1. V erify that the magazine is empty and then connect
the air supply to the tool.
2. Lay the tool on its side and point the nose of the
tool away from yourself and others.
3. Open the fastener door by pressing the door lever
and lifting up on the door.
Pallet
4. Open the magazine cover.
5. Position the pallet to the correct nail height for the
coil to be used. Read the corresponding nail size
on the back of the magazine. If the size is not correct, pull up on the pallet and rotate it clockwise for
shorter nails or counterclockwise for longer nails.
Verify that the correct nail size is set.
SPECIFICATIONS
Cat. No. ......................................................7220-20
Operating Pressure ..............................min. 70 PSI
...........................................................max. 120 PSI
Fastener Length ......................................min. 0.75"
.................................................................max.1.75"
Collation Angle................................................... 15°
Fastener Size (Diameter) ..............................0.120"
Air Consumption ................0.08 ft
3
/cycle at 100 PSI
Air Inlet .....................................................3/8" NPT
Magazine Capacity ...................................120 nails
TERMINOLOGY
Actuate
T o cause movement of the tool component(s) intended
to drive a fastener.
Actuation System
The use of a trigger, workpiece contact and/or other
operating control, separately or in some combination
or sequence, to actuate the tool.
• Single sequential actuation
An actuation system that requires the workpiece
contact and then the trigger to be activated in a
specifi c sequence to drive a fastener. Additional
actuation can occur when the trigger is released
and reactivated.
• Contact actuation
An actuation system that requires the workpiece
contact and the trigger to be activated in any
sequence to drive a fastener. Additional actuation
can occur when either the workpiece contact or the
trigger is released and reactivated.
• Selective actuation
An actuation system that allows selection of actua-
tion systems: single sequential actuation or contact
actuation.
Fastener
A staple, pin, brad, nail, or other fastening device which
is designed and manufactured for use in the tools.
Jam
An obstruction in the feed or drive areas of the tool.
Workpiece Contact
An operating control element on the tool intended to
be activated by the workpiece to be fastened.
ASSEMBLY
WARNING
Disconnect the air supply from the
tool and remove fastener strips
before changing or removing accessories. Only
use accessories specifi cally recommended for
this tool by the manufacturer. Others may be
hazardous.
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.
Exhaust
The exhaust cap can be adjusted to direct the exhaust
as desired. Turn the exhaust cap to the desired locking position.
Lubricating the Tool
Lubricate the tool with air tool lubricant before connecting the air supply. Under low use, lubricate once
a day. Under heavy use, lubricate twice a day. Use
6. Place the center of the nail coil over the pallet post.
The points of the nails must rest on the pallet.
NOTE: Use only recommended fasteners of the
correct size, length, collation angle and head type
as indicated on the tool's nameplate.
7. Pull the loose end of the coil toward the nose of the
tool. Feed the heads of the nails fl at into the nail
slot. Push the fi rst nail past the feed mechanism
into the nose of the tool.
Nail slot
Feed
mechanism
Nose
8. Close the magazine cover.
9. Close and latch the fastener door.
Removing Fastener Coils
WARNING
To avoid serious injury , disconnect
the tool from the air supply before
removing fastener coils or clearing a jammed
fastener.
Keep fi ngers clear of fastener track of magazine.
Pusher could pinch fi ngers, causing injury.
1. Lay the tool on its side and point the nose of the
tool away from yourself and others.
2. Disconnect the air supply from the tool.
3. Open the fastener door by pressing the door lever
and lifting up on the door.
4. Open the magazine cover.
5. To remove a coil of fasteners, slide the coil off of
the pallet post and out of the nail slot.
6. Reload according to "Installing Fastener Coils".
Clearing a Jammed Fastener
Most jams are caused by a fastener or part of a fastener wedging between the driver blade and the nail
guide. Fastener strips with an incorrect collation angle
or the wrong fastener type (such as round head fasteners) may cause continuous jamming. T o clear the jam:
1. Lay the tool on its side and point the nose of the
tool away from yourself and others.
2. Disconnect the air supply from the tool and remove
fastener coil.
3. With the fastener door and magazine still open,
check for and remove any loose nails or debris.
4. If a nail is jammed in the nail guide, insert a screw-
driver into the end of the nail guide. The tip of the
screwdriver should contact the tip of the driver blade.
5. Tap the screwdriver gently with a hammer. The
screwdriver will push the driver blade back, freeing
the jam.
6. Remove the fastener and other debris (use needle-
nose pliers if necessary).
7. Follow the steps under "Required Daily Testing"
before restarting the work.
6
7
Tap screwdriver to free fastener
OPERATION
WARNING
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 accor-
dance with ANSI Z89.1.
Selecting Actuation Mode
The selectable trigger can be set to either Single Sequential Actuation mode or Contact Actuation mode.
1. Push in and hold the Actuation Selector.
2. Rotate the Selector to Single Sequential Actuation
(T) or Contact Actuation (TTT).
3. Release the Actuation Selector.
NOTE: Be sure the selector is snapped into posi-
tion. Understand the actuation process before use.
Single
Sequential
Actuation
Contact
Actuation
WARNING
To reduce the risk of injury to your-
self and others, test the tool before
beginning work each day according to the "Required Daily Testing" section.
Do not use the tool unless you thoroughly understand the actuation operation selected.
Disconnect the air supply from the tool and
remove fastener strips before leaving the work
area, moving the tool to another location, or
handing the tool to another person. Failure to do
so could result in serious injury.
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.
Single Sequential Actuation Operation
1. Grip the handle fi rmly.
2. Position the nose of the tool on the work surface.
3. Push the tool against the work surface, compressing the workpiece contact.
4. Pull the trigger to drive the fastener. The tool will recoil
away from the workpiece as the fastener is driven.
5. Remove your fi nger from the trigger and remove
the tool from the workpiece.
NOTE: If the tool is not removed from the work-
piece, another fastener may be driven if the trigger
is pulled again.
Contact Actuation Operation
1. Grip the handle fi rmly.
2. Pull and hold the trigger.
3. Push the tool against the work surface, compressing the workpiece contact to drive the fastener.
The tool will recoil away from the workpiece as the
fastener is driven.
NOTE: Contact Actuation will also work by first
compressing the workpiece contact, then pulling the
trigger.
WARNING
NEVER wedge or hold back the
workpiece contact mechanism during operation of the tool. Never attempt to clear
a jammed workpiece contact by grasping the
discharge area of the tool. Doing so could result
in serious injury.
To avoid serious injury , do not attempt to prevent
the recoil by holding the tool too fi rmly against
the work. Keep face and body away from the tool.
During normal use, the tool will recoil immediately
after driving a fastener. This is a normal function
of the tool. Restriction to the recoil can result in
a second fastener being driven when the tool is
in Contact Actuation mode. Grip the handle fi rmly,
let the tool do the work, and do not place a second
hand on top of the tool or near exhaust.
Setting the Air Pressure and Depth of Drive
The amount of air pressure required will depend on
the size of the fastener and the workpiece material.
WARNING
Know what is behind your work-
piece. A fastener could travel
through the workpiece and out the other side,
striking a bystander and causing serious injury.
Lower the air pressure and/or depth of drive to
prevent the fastener from being pushed all the
way through the workpiece.
1. Lay the tool on its side and point the nose of the
tool away from yourself and others.
2. Disconnect the air supply from the tool and remove
fastener strip.
3. Set the depth of drive adjustment to the middle of
its range.
4. Reload fastener strip according to "Installing Fas-
tener Strips".
Set to
middle
of range
5. Begin testing the depth of drive by driving a test
fastener into the same type of workpiece material
used for the actual job using an air pressure of 9095 psi.
6. Raise or lower the air pressure to fi nd the lowest
setting that will drive the fastener consistently. Do
not exceed 120 psi.
NOTE: It may be possible to achieve the desired
depth with air pressure adjustments alone. If fi ner
adjustments are needed, use the depth of drive
adjustment.
7. To fi ne-tune the depth of drive, disconnect the air
supply and lay the tool on its side and point the nose
of the tool away from yourself and others. Remove
fastener strip. Turn the depth selector left or right
to increase or decrease the driving depth.
8. Reload fastener strip according to "Installing Fastener Strips".
9. Drive a test fastener and repeat step 7 and 8 until
desired depth is reached.
REQUIRED DAILY TESTING
WARNING
To reduce the risk of injury to your-
self and others, test the tool before
beginning work each day or if the tool is dropped,
received a sharp blow, been run over, etc. Complete the following checklist IN ORDER. If the tool
does not work as it should, contact a MILW AUKEE
service facility immediately.
Always point tool away from yourself and others.
1. Disconnect the air supply from the tool and remove
fastener coil.
2. Check all screws, bolts, nuts, and pins on the tool.
Any loose fasteners must be tightened.
3. Press the workpiece contact against a workpiece.
It must move smoothly.
4. With the workpiece contact pressed against the
workpiece, pull the trigger. It must move smoothly .
5. Connect the air supply (at 70 psi) to the tool. DO
NOT load a fastener coil.
6. Select the Single Sequential Actuation Operation.
Air must not leak from the tool.
Without pulling the trigger, press the workpiece
contact against a workpiece. The tool must not
operate.
Holding the workpiece contact away from the
workpiece, pull and hold the trigger for 5 seconds.
The tool must not operate.
Continue to pull and hold the trigger and push the
workpiece contact against a workpiece. The tool
must not operate.
Without pulling the trigger, press the workpiece
contact against a workpiece. Pull the trigger. The
tool must operate.
Release the trigger. The driver must move up.
7. Select the Contact Actuation Operation.
Holding the workpiece contact away from the work-
piece, pull the trigger. The tool must not operate.
Continue to pull and hold the trigger and push the
workpiece contact against a workpiece. The tool
must operate.
8. If all previous tests work properly, set the tool for
your work. Select the operation and load fastener
coil.
9. Set the depth of drive according to the "Setting the
Air Pressure and Depth of Drive" section.
10. If all tests operate properly, the tool is ready for
use. Repeat these tests before use each day or if
the tool is dropped, received a sharp blow, been
run over, jammed, etc.
MAINTENANCE
WARNING
To reduce the risk of injury , use only
identical replacement parts recommended by the manufacturer. Tool service must
be performed only by qualifi ed repair personnel.
Always wear safety goggles or glasses with side
shields when servicing tools. Disconnect tool from
air supply before servicing.
Cleaning
Clean dust and debris from tool vents. Keep tool
handles clean, dry and free of oil or grease. Use only
mild soap and a damp cloth to clean the tool, since
certain cleaning agents and solvents are harmful to
plastics and other parts. Some of these include gasoline, turpentine, lacquer thinner, paint thinner, chlorinated cleaning solvents, ammonia and household
detergents containing ammonia. Never use fl ammable
or combustible solvents around tools.
Lubrication
Frequent, but not excessive, lubrication is required
for best performance. Oil added through the air line
connection will lubricate the internal parts. Do not use
detergent oil, WD-40, transmission fl uid, motor oil, or
other lubricants not specifi cally designated as air tool
lubricant. These lubricants will cause accelerated wear
to the seals, o-rings and bumpers in the tool, resulting
in poor tool performance and frequent maintenance.
Cold Weather Operation
For cold weather operation, near and below freezing,
the moisture in the air line may freeze and prevent
tool operation. Use an air tool lubricant or permanent
antifreeze as a cold weather lubricant in the air line.
Do not store tools in a below-freezing environment.
Ice or frost could form on the tools' operating valves
and mechanisms, causing tool failure.
Air Supply-Pressure and Volume
Air volume is as important as air pressure. The air volume supplied to the tool may be inadequate because
of undersized fi ttings and hoses, or from the effects
of dirt and water in the system. Restricted air fl ow will
prevent the tool from receiving an adequate volume
of air, even though the pressure reading is high. The
results will be slow operation or reduced driving power.
Before evaluating tool problems for these symptoms,
trace the air supply from the tool to the supply source
for restrictive connectors, low points containing water
and anything else that would prevent full volume fl ow
of air to the tool.
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