Specifications - Milwaukee 7220-20 Operator's Manual

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
To 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
Disconnect the air supply from the
WARNING
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 lock-
ing position.
Lubricating the Tool
Lubricate the tool with air tool lubricant before con-
necting the air supply. Under low use, lubricate once
a day. Under heavy use, lubricate twice a day. Use
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.
3/8" NPT quick
connector
2-3 drops of air
tool lubricant
Adjusting/Removing Shingle Guide
To adjust the shingle guide, press in the guide button
and slide the guide to the desired location. To 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
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.
Always use a coupling that dis-
WARNING
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 unin-
tended 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 be-
tween 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.
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Installing Fastener Coils
Always point the tool away from
WARNING
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 unin-
tended 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 recom-
mended fasteners. Other fasteners could result in
tool malfunction, leading to injury.
Verify
magazine
is empty
Fastener
door lever
1. Verify 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 cor-
rect, 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.
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
To avoid serious injury, disconnect
WARNING
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 fas-
tener 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 fasten-
ers) may cause continuous jamming. To 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.
5