Powernail 445 XLL, 445 XLS, 445 LL, 445 LS, 445 SL Operation And Maintenance Manual

Read this manual before you use this Nailer.
Follow all safety warnings and instructions. Do not
attempt any disassembly or repairs while the air
line is connected. Always disconnect the air line

rst. Do not use excessive unregulated air pressure.

If you are uncertain about the operation of the Nailer,
call us directly a 1-800-323-1653 for assistance
or contact the closest Powernail® Dealer for help.
Please retain this information for future reference.

WARNING

REVISION G3-0708

Operation and Maintenance Manual

Models 445 XLL, XLS, LL, LS, SL, SS, & SN

Pneumatic Powernailer

®

POWERNAIL® CO.

1300 Rose Road, Lake Zurich, IL 60047
Phone: [phone]
Website: http://www.powernail.com

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Operation and Maintenance Manual

POWERNAIL

®

CO.

1300 Rose Road, Lake Zurich, IL 60047
phone: [phone]
website: www.powernail.com

MODELS 445 XL, XS, LL, LS, SL, SS & SN

PNEUMATIC POWERNAILER

®

REVISION G.3

Always wear approved front and side EYE PROTECTION
when operating this Nailer. Others in the work area
should also wear front and side EYE PROTECTION. Eye

protection will help guard against ying nails and debris,

which could cause severe eye injury.

EAR PROTECTION may be required to prevent hearing
damage when there are high noise levels in the work
area.

Always DISCONNECT THE AIR SUPPLY before making
any adjustments, repairing, clearing jams or when the
Nailer is not in use.

Never attach the female end of a quick disconnect to the
Nailer. This will trap air inside the Nailer and permit it to
be discharged. Only the unrestricted male connection
should be attached to the Nailer.

Use only regulated compressed air, do not use bottled
gases of any kind to power this Nailer. Normal air
pressure should not exceed 120 psi or damage to the
Nailer and seals may occur. Excess air pressure can
cause the Nailer to explode.

THE TRIGGER IS A SAFETY DEVICE and should only
be pulled when the Nailer is in proper position on the work
surface and before the plunger is struck with the mallet.
Do not tie or tape down the safety trigger as the Nailer
could discharge if dropped on the plunger. The Nailer will

not re unless the trigger is pulled before the mallet blow.

Do not use the trigger safety as a lock up for the plunger
then rack the wood using the locked up Nailer body. It will
severely damage the mechanism and the Nailer. Use the
mallet to rack the wood strip, not the Nailer.

DO NOT USE THE METAL END OF THE MALLET TO
STRIKE THE PLUNGER, use the rubber capped end

only.

Never place any part of the body in the discharge path
of the Nailer when air is connected to the Nailer. Always
make sure Nailer is empty of cleats before connecting
air hose so as to prevent any accidental discharge from
occurring.

Never leave the Nailer unattended while it is connected to
an air supply.

The Powernailer® Model 445 Mallet Actuated
Pneumatic Nailer is the latest model designed to bring
Powernail quality to a pneumatic Nailer. For those
looking for the ease of use of a pneumatic tool, the
Powernailer Model 445—designed for use with 1-1/2”,
1-3/4” and 2” Powercleats® nails—provides several
distinct advantages. Like our Model 45, the Model 445
can nail down 1/2”, 3/4” and 33/32” tongue and groove

hardwood ooring through the use of easy-to-change,

no-mar adapter plates.

WARNING

Whenever air is connected to the

Nailer, keep body parts away
from the nail discharge path. Disconnect the air line
before making adjustments or repairs on the Nailer.
Only connect air to an unloaded Nailer so as to prevent
accidental discharge.

Consult the drawing for the appropriate adapter pad to

use with the thickness of ooring you are installing.

Rack the ooring into place with the rubber end of the

mallet supplied with the Nailer

Place the Nailer Adapter Foot on the tongued edge of

the ooring strip to be nailed. Be sure the Adapter Foot
is pressed tightly against the edge of the ooring strip

above the tongue.

Be sure ooring strips are racked tightly. Pull the Safety

Trigger and tap the Nailer Plunger Rubber Cap with the
rubber capped end of the mallet to discharge the Nailer.

WARNING

It is not necessary to hit the Nailer
hard to activate it. Never hit the Nailer with excessive
force or with the metal end of the mallet, this will damage
the Nailer.

Never use the Safety Trigger interlock to lock up the

plunger and rack the wood with blows to the Nailer body.
This will severely damage the safety mechanism and
Nailer. This abuse and damage is not covered by the
warranty.

Before each use check all screws to be sure they are
tight. Shock and vibration can loosen screws. Do not over

tighten any screw.

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TO PREVENT ACCIDENTAL INJURIES:

DESCRIPTION

OPERATION

Read these instructions carefully before you use the Nailer.

To use the Model 445, simply snug up the ooring with

the rubber mallet, pull the safety trigger and tap the
plunger with the rubber capped mallet end and let the
Nailer drive and set the nail at the correct 45 degree
angle.

For a superior pneumatic Nailer, look to the company that
has been the industry’s quality leader for over 50 years,
POWERNAIL® COMPANY, INCORPORATED.

AIR SUPPLY:

The air must be clean and dry. Dirty and/or wet air

will damage the Nailer. A combination lter-regulator-

lubricator is required for proper Nailer performance and
should be placed close to the Nailer per manufacturers’
recommendations.

Drywall Dust:

• Using Pneumatic Powernailers in drywall dust
conditions will dramatically decrease the life of the
Nailer.

• Drywall dust is abrasive, when cycled through the
Nailer it will cause excessive wear.

Fill the lubricator with a high-quality Air Tool Oil. Adjust the
lubricator to the manufacturers’ recommendations. Do not
over oil the Nailer, as excess oil will be discharged with

the spent air and could stain the wood ooring, walls or

furnishings. We will not be responsible for oil stains.

WARNING

Detergent oil is not recommended

and may damage the seals. Consult the lter regulator

lubricator manufacturer’s recommendations for proper
operation, settings and unit maintenance.

The air source must continuously deliver 100 to 120 psi
and 3-1/2 cubic feet of air per minute to operate the Nailer
Connect a 1/4” minimum internal diameter and clean air

hose to the Nailer. Be sure the air regulator is set at 90 psi.

If the nail is not countersunk below the surface of the wood,
turn up the air pressure, but not over 120 psi.

Check for air supply leaks that waste air and starve the
Nailer of air thereby reducing its performance. There should

be no orice smaller than 1/4” in the air path between the

Regulator and the Nailer.

LUBRICATION:

If you do not use an in line lubricator, you must lubricate the
Nailer manually. The frequency of lubrication is dependent
upon the duty cycle of the Nailer. Continuous duty requires
more frequent oiling than intermittent duty.

At least every eight (8) hours place two to four drops of Air
Tool Oil, supplied with your Nailer, into the disconnected air
line male connector attached to the Nailer.

WARNING

Do not over lubricate the Nailer,

excess oil mist or drops will be vented with spent air when

over lubricated. Excess oil could stain the wood ooring,
walls or furnishings. Dry re the Nailer, without nails, to
purge excess oil, before you begin to nail down ooring.

We will not be responsible for oil stains. Before storing

the Nailer, lubricate and cycle the Nailer in insure internal
parts are oil protected from corrosion.

TO LOAD MODEL 445 XLL, LL or SL:
Place up to two sticks (200 Powercleats) into the Nail
Channel feed slot. Pull back the spring loaded Nail
Pusher over the nails until it contacts the last nail and
slowly release the Nail Pusher.

TO LOAD MODEL 445 XLS, LS or SS:
Place one stick (100 Powercleats) into the Nail Channel
feed slot.

TO LOAD MODEL 445 SN:
Place 1/2 stick (50 Powercleats) into the Nail Channel
feed slot.

TO UNLOAD:
To remove nails from the Nail Channel, pull the two
round knobs on the Nail Pusher together. This will clear it
from the nail path. Then turn the Nailer over so the nails
slide out of the channel.

WARNING

Do not use any nails other than

Powernail Powercleats Nails, which are specically

designed for use in any Powernailer. Powercleats Nails
are available in various lengths to accommodate any

ooring thickness. Contact your Powernail Dealer for

Powercleats Nails.

PARTS & SERVICE:
When ordering parts include the part number, part

description, Powernailer model and serial number. Be

sure to state the quantity of the part(s) required. Contact
your Powernail Dealer for the necessary parts.

WARNING

Never work on the Nailer if the air

line is attached. Always disconnect the air line from the

Nailer rst.

NAILER DISASSEMBLY:

TO REPLACE RUBBER BUMPER (#20 or #65):

1. Disconnect the air supply

2. Remove the four (4) cap screws holding the Adapter

Foot, Foot and Nail Channel assembly to the main Body

(see illustration).

3. Pull the Rubber Bumper out of the cylinder bore.
Replace the old Bumper if it shows signs of wear or it is

split.

4. Reverse these steps to reassemble the Nailer. Be
sure to align the Driving Blade with the slot in the Nail

Channel Assembly while you reassemble the Nailer

NEVER FIRE THE NAILER WITHOUT THE RUBBER
BUMPER INSTALLED, IT WILL SEVERELY DAMAGE

THE NAILER.

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TO REPLACE DRIVING BLADE (#14):

1. Disconnect the air supply.

2. Remove the four socket head cap screws holding the
Adapter Foot, Foot and Nail Channel Assembly to the
body.

3. Remove the Rubber Bumper.

4. Pull the Driving Blade with pliers until the Piston is fully

extended outward towards the bottom of the cylinder.

5. Use the 15/16” box wrench supplied to unscrew the

Driving Blade Jam Nut and remove it. Hold the Piston
from turning while unscrewing the Jam Nut by holding the

piston hex with the 1-1/8” box wrench supplied.

6. Push out the 1/4” diameter blade retaining Dowel Pin

and remove the broken Driving Blade stub.

7. Install a new Driving Blade in the slot and replace the
Dowel Pin. Screw on the retaining Jam Nut using the
same tools. If the Jam Nut becomes worn and loose after

frequent removals, it should be replaced.

8. Check the t, there should be some sideways
movement between the Driving Blade and the Jam Nut

assembly. This is desirable and helps the blade to align
itself with the mating parts.

9. Reassemble the components. Be sure to align the
Driving Blade with the slot in the Adapter Foot Assembly.

SEAL REPLACEMENT:
There are 7 seals that may require replacement. We
recommend that you have your POWERNAIL Dealer

replace the Seals.

SEAL KIT:

You may choose to buy a Seal Replacement Kit and

replace the seals yourself. It is good practice to replace
all seals at one time regardless if only one seal needs
replacement.

SEAL DESCRIPTION & NUMBER:

1. Rubber Seat (#19)

2. Plunger Seal Set (#21)

3. Piston U-Cup Lip Seal (#22)

4. Return Cylinder U-Cup Lip Seal (#23)

5. Piston Rod U-Cup Lip Seal (#24)

6. Plunger Wiper Seal (#25)

7. Return Cylinder O-Ring Gasket (#26)

To change Seals follow these procedures. Be sure the air
line is disconnected from the Nailer rst before making

any repairs.

Consult the illustration for the name and location of the
following component parts.

DRIVING BLADE ASSEMBLY REMOVAL:

1. Disconnect the air supply.

2. Remove Rubber Plunger Cap (#18).

3. Unscrew & remove Body Cap (#2).

4. Push Safety Yoke (#8) aside and unscrew the three

#10-32 cap screws holding the Plunger (#12) to the
Return Cylinder (#11).

5. Pull the Plunger up and out of the Nailer Body (#1)

cavity.

6. Remove the Return Cylinder O-Ring Gasket (#26)

located on the top of the Return Cylinder under the
Plunger.

7. Turn the Nailer over and remove the four cap screws

(#50), that fasten the Adapter Foot and Nail Channel
Assembly to the Nailer Body and lift the Assembly off the
Body.

8. Remove the Rubber Bumper (#20 or #65).

9. Pull the Driving Blade Assembly out of the Nailer Body
by pulling on the Driving Blade.

10. Hold the Piston Rod (#9) with an 11/16 socket over its

hex end opposite the Piston. Do not use pliers or a vise
anywhere on the metal parts, they can damage the
sealing surfaces.

11. Use the supplied box wrenches to remove the 5/8-18

Jam Nut (#51). Remove the Dowel Pin (#38) and Driving
Blade (#14).

12. Unscrew the Piston from the Piston Rod using the
supplied box wrenches and separate the Piston, Piston
Rod and Return Cylinder

TO REPLACE THE SEALS:

Rubber Seat (#19):

1. Remove the Cylinder Sleeve (#13). The Cylinder
Sleeve should slide out of the Nailer Body when you pull
out the Driving Blade Assembly.

2. Remove the metal Support Ring (#17) and Rubber
Seat from inside the Nailer body. Note that the chamfer on
the inside of the Rubber Seat faces the BOTTOM of the

Nailer, do not reverse the direction of the chamfer when

you replace the Rubber Seat.

3. Replace the Rubber Seat, Support Ring and Cylinder
Sleeve. Be sure to re install the steel Cylinder Sleeve with
the chamfered inside edge facing the BOTTOM of the

Nailer

Plunger Seal Set (#21):

1. Remove the Teon® Seal and its O-Ring expander
from the groove using a bent paper clip or pick. Be sure

not to scratch the inside walls of the seal groove with the
wire hook.

2. Clean out the seal groove. Place a new O-Ring into
the seal groove by stretching it over the Plunger body.
Make sure the O-Ring is not twisted in the groove. Place

a new Teon° Seal Ring into the seal groove over the

O-Ring.

3. Carefully push the Teon®Seal Ring over the edge

of the Plunger with your thumbs and into the groove.
Do this as quickly as possible to reduce stretching of

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