Porta-Nails PORTAMATIC User manual

OWNER’S MANUAL
PORTAMATIC®
Pneumatic Nailer
For Tongue and Groove Solid Wood & Hardwood
Laminate Flooring, Roof Decking and Wood Sub Flooring
CAUTION - Read important safety instructions AND operation instructions
BEFORE operating your PORTAMATIC®Pneumatic Nailer.
Your new PORTAMATIC®Pneumatic Nailer is a quality-built
machine, capable of dependable performance throughout its lifetime.
To take full advantage of these capabilities you should thoroughly
understand the proper method and technique of its operation.
Therefore, we suggest you read this manual before operating, and
PO Box 1257, Wilmington, NC 28402
910-762-6334 • 800-634-9281 • Fax [phone] that you save it for future reference.
Home Page: www.porta-nails.com E-mail: [email protected] For use with PORTAMATIC® Nailers Starting with Serial No. 00004000
FORM P/N 750209 (7/1/2004)
32 1

CAT. NO. 421
2
Specifications / Contents
Model 421 PORTAMATIC®
with Angled Shoe to be used for
installing 3/4”- 33/32” Tongue and
Groove Flooring, a Face Shoe to be
used for face nailing the first four (4)
rows and the last five (5) rows of
Tongue and Groove Flooring.
Package Contents Include:
PORTAMATIC® Nailer, Hammer,
Face Shoe, Owner’s Manual,
Wrenches, Safety Glasses, Carrying
Case.
CAT. NO. 422
Specifications / Contents
Model 421 PORTAMATIC®
with Angled Shoe to be used for
installing 3/4”- 33/32” Tongue and
Groove Flooring
Package Contents Include:
PORTAMATIC® Nailer,
Hammer, Owner’s Manual,
Wrenches, Safety Glasses.
PORTAMATIC® SPECIFICATIONS
ETL Listed: Control Number 9801577
US Patent Numbers: 6,095,392 & D419,048
Fastener Type: Use only Porta-Nails*
Operating Pressure: 90 P.S.I. (See Operating Instructions Pg. 8)
Firing Mode: Hammer Actuated
Jam Clearance: Lever Type, Quick Release Gate (See
Clearing a Jam Pgs. 10-11)
Dimensions: 19” High x 20” Long x 3” Wide
Weight: Approximately 13 LBS. (Tool Only)
*Porta-Nails Must Be Purchased Separately
31

30
NOTES:
3
PNI’s LIMITED ONE YEAR WARRANTY
PNI is proud of the products that it manufactures and warrants them to be free of
defects from workmanship and material for a period of 1 year from the date of original
purchase (Exceptions: rubber O-rings, Seals and Driver Blades). In the unlikely
event that a problem occurs, return the product to our plant freight prepaid and allowed,
so that a determination of the fault can be made. If the fault is determined to be
defective materials or workmanship, a no-charge replacement or repair will be made, at
our discretion. The product will be returned to you freight prepaid and allowed.
WARRANTY WILL BE VOID IF OIL IS USED IN TOOL.This warranty does
not cover accidents, abuse or misuse and in no case will PNI be liable for incidental or
consequential damages. No other warranty written or verbal is authorized.
Returns for warranty service or repair must have a RMA number
prior to returning; contact Customer Service at 800-634-9281.
Returns should be sent to:
Porta-Nails, Inc. 4235 US Hwy. 421 N. Currie, NC 28435
Attention Service Dept.
Safety Instructions
1. KNOW YOUR POWER TOOL
Read the owner's manual
carefully. Learn its applications
and limitations as well as the
potential hazards specific to this
tool.
2. THE OPERATOR AND ALL
OTHER PERSONNEL MUST
WEAR PROPER EYE AND
EAR PROTECTION IN THE
WORK AREA.
Wear safety goggles at all times.
(Must comply with ANSI Z87.1).
Everyday eyeglasses have impact
resistant lenses only. They are
NOT safety glasses. Also, wear
ear protectors (plugs or muffs)
during extended periods of
operation
3. KEEP WORK AREA CLEAN
Cluttered areas and benches invite
accidents. Floor must not be
slippery due to sawdust.
4. KEEP CHILDREN AWAY
All visitors should be kept a safe
distance from work area.
5. WEAR PROPER APPAREL
Do not wear loose clothing, gloves,
neckties or jewelry (rings,
wristwatches) that could get caught
in moving parts. Wear non-slip
footwear. Wear protective hair
covering to contain long hair. Roll
long sleeves above the elbow.
6. SECURE WORK
Be sure the tongue and groove of
the flooring strips are properly
interlocked and secured in place
before nailing.
7. STAY ALERT
Watch what you are doing. Use
common sense. Do not operate
tool when you are tired or while
under the influence of medication,
alcohol or drugs.

4 29
8. ALWAYS INSPECT TOOL
BEFORE OPERATING.
Tool must be inspected prior to
use to insure proper use of power
supply. Tool must be inspected to
insure proper working order. An
improperly functioning tool must
not be used.
9. KEEP HANDS, FEET AND
OTHER BODY PARTS AWAY
FROM NAIL EJECTION
AREA.
Serious injury could occur if body
parts are not kept away from nail
ejection area.
10. ALWAYS ASSUME THE
TOOL CONTAINS
FASTENERS.
Do not activate the tool unless the
tool is placed firmly against the
work piece.
11. NO HORSEPLAY.
Do not point the tool toward
yourself or anyone whether it
contains fasteners or not.
12. NEVER DESENGAGE OR
RENDER THE SAFETY IN-
OPERABLE.
13. NEVER TRANSPORT TOOL
WHILE DEPRESSING THE
TRIGGER.
14. DISCONNECT TOOL FROM
AIR SUPPLY WHEN:
Moving the tool to a new location,
performing any maintenance or
repair, clearing a jam or tool is
unattended.
15. NEVER SERVICE WHILE
ATTACHED TO AIR SUPPLY.
Always disconnect the tool from
the power source when servicing,
or replacing parts.
16. DO NOT USE TOOL IF
OPERATING CONTROLS
ARE INOPERABLE.
Do not remove, tamper with, or
otherwise cause the tool operating
controls or safety controls to
become inoperable.
17. DO NOT OPERATE TOOL IF
SAFETY FEATURES NOT
WORKING PROPERLY.
Disconnect tool from power source
if safety trigger or operating
controls are not working properly.
18. USE ONLY PORTA-NAIL
FASTENERS.
Only use fasteners recommended
by the manufacturer. Use of other
fasteners may cause serious injury,
jamming of tool or improper
operation.
19. USE ONLY PRESSURE-
REGULATED POWER
SOURCE.
Use only a pressure regulated
power source set at 125 PSI
maximum. The power source must
have a safety relief valve set at 135
PSI maximum.
20. THE TOOL SHOULD NOT BE
OPERATED AT THE
MAXIMUM AIR PRESSURE.
The tool air-line should be
connected to the power source
through an airline pressure
Regulator and an airline Filter.
The air line Regulator should never
be set higher than 110 PSI as
marked on the tool. Lower
pressures may be used as
recommended by the manufacturer.
21. HAZARDOUS POWER
SOURCES SHALL NOT BE
USED.
Hazardous power sources
including, but not limited to,
Oxygen, Combustible gases,
sources whose pressure can exceed
200 PSI if the pressure Regulator
fails, bottled gases, including air
should never be used.
PROBLEM
OR
QUESTION CAUSE CORRECTIVE ACTION
Ram is stuck
in down
position
Driver Blade
(Ref. #58)
could be bent Check and replace if needed.
Oil could have
been used in the
tool
Clean, replace O-Rings and grease as
recommended in the Owner’s Manual.
Cylinder
Cushion Ring
(Ref. #5) could
be loose or
damaged or has
been installed
upside down.
Check Cylinder Cushion Ring (Ref. #5) and
replace if loose or damaged. Check for
proper installation. (See Figure 12)
Tool partially
fires when air
hose is
connected
Main Valve
(Ref. #41) is not
seating in Valve
Housing (Ref.
#46).
Check the Return Spring (Ref. #8) under the
Main Valve (Ref. #41) to make sure it is not
damaged and that the Return Spring Washers
(Ref. #3) are not damaged. Replace if
needed.
Check for smoothness and free movement of
the Main Valve (Ref. #41) in the Valve
Housing (Ref. #46). If too tight, replace the
O-Rings on the Main Valve.
O-Rings on the
Discharge
Valve (Ref.
#11) may be
damaged.
Check and replace if needed.
Discharge
Valve Springs
(Ref. #9) not
aligned
Check and re-align if needed.
Cylinder
Exhaust Valve
Screw (Ref.
#50) may be
loose.
Check and tighten if needed. Use
LOCTITE® 242 (Blue) on screw.
Nailer
partially fires
when trigger
is pulled and
before Ram is
struck
Main Valve Lip
Seal (Ref. #41)
is not sealing
Check Lip Seal. If damaged, replace Main
Valve (Ref. #41).

PROBLEM
OR
QUESTION CAUSE CORRECTIVE ACTION
28
Nailer is
shooting two
nails.
End of Rail
(Ref. #26) is
worn.
Turn Rail (Ref. #26) around to use other
end in Guide if this has not been previously
done. If Rail has already been turned
previously, replace Rail.
Screws holding
Magazine (Ref.
#29) may be
loose
preventing Rail
(Ref. #26) from
being held
properly in
place.
Tighten Screws (Ref. #43, #29) that secure
the Magazine (Ref. #28) to the Guide (Ref.
#21) and the back Magazine Retainer
Bracket (Ref. #27).
Nails are not
being counter
sunk into
wood and are
left sticking
out of wood.
Not driving
Nails into the
tongue area
Always drive Nails into the tongue area, not
the groove.
Tip of Driver
Blade (Ref.
#58) broken
Check Driver Blade (Ref. #58) and replace
if tip is broken.
Air pressure
too low Set air pressure to 100-110 PSI
Using air
compressor
that is too
small
Follow recommendations in the Owner’s
Manual relative to size and volume of air
compressor
Using an air
line that is too
small Always use 3/8” ID air line.
The Piston
Cushion (Ref.
#10) could be
damaged
preventing the
Piston (Ref.
#56) from
completing full
stroke.
Check Piston Cushion (Ref. #10) and
replace if needed.
Nailer does
not fire when
trigger is
pulled.
This is a safety
feature The Nailer is not supposed to fire when the Trigger is pulled. In order to fire the Nailer,
the Trigger must be pulled and the Ram
Head (Ref. #47) struck with the hammer, in
that order.
APPLICATIONS
Your model 421 PORTAMATIC®Nailer is designed for Face
Nailing and Angle Nailing 9/16”, 25/32”, and 33/32” Hardwood
Tongue and Groove Flooring. (See Shoe Accessory Applications
section)
PORTAMATIC®
ACCESSORY SHOE APPLICATIONS
5
FIGURE 1
Face Nailing
Accessory Shoe Cat. No. 50477
FIGURE 2
Tongue Nailing 33/32”
Flooring
Shoe P/N 50125
Shoe Base P/N 50185 (Green)
Shoe Pad P/N 50182 (Green)

6
FIGURE 3
Tongue Nailing 3/4”
Flooring
Shoe P/N 50125
Shoe Base P/N 50183 (Natural)
Shoe Pad P/N 50180 (Natural)
FIGURE 4
Tongue Nailing 9/16”
Flooring
Shoe P/N 50125
Shoe Base P/N 50184 (Black)
Shoe Pad P/N 50181 (Black)
SHOE CHANGING
CONVERSION TO AND FROM FACE NAILING
33
50
33
42
FIGURE 5 FIGURE 6
Tongue and Groove Flooring Shoe Face Nailing Shoe
Loosen or remove Flange Nuts (Ref. No. 33) with Wrench and Screw
Shoe Screw (Ref. No. 50) to remove and change over from Tongue
Nailing to Face Nailing Applications. Change from Face Nailing to
Tongue Nailing by loosening or removing Flange Nuts (Ref. No. 33)
with Wrench and Face Shoe Screw (Ref. No. 42). Always tighten the
Shoe Screw (Ref. No. 50 or 42) before tightening the Flange Nuts
(Ref. No. 33).
421 PORTAMATIC®
TROUBLE SHOOTING
PROBLEM
OR
QUESTION CAUSE CORRECTIVE ACTION
Nailer is
Jamming
More than one
Nail trying to
get into
chamber.
Check Rail (Ref. #26) for wear on the end.
If worn, turn rail around to use other end in
Guide or replace the rail. Make sure pusher
provides positive pushing force on the nail
clip to prevent nails from turning.
Tip of Driver
Blade (Ref.
#58) broken
Check Driver Blade (Ref. #58) and replace
if tip is broken.
Access Gate
(Ref. #22) may
not be closed
properly.
Check Access Gate (Ref. #22) to ensure it’s
properly closed.
Nailer is not
always
firing a nail
Obstruction
keeping the
nail clip from
advancing.
Clear obstruction, trash, bent or twisted
nails, etc.
Make sure Pusher provides positive pushing
force on the Nail clip to prevent Nails from
turning
27
Air is escaping
Damaged or
worn seal. Determine location of air escaping. Replace appropriate seal.
Oil has been
used causing
O-Rings to
swell which
can restrict
movement of
piston or other
component that
must seal.
Clean internal components. Check for
damaged seals or O-Rings. Replace
damaged seal or O-Ring. Grease as
specified in Owner’s Manual.

Installing A Fitting
Before using the PORTAMATIC®Nailer, a 3/8” NPT Fitting
must be installed. The PORTAMATIC® Nailer has an adapter
installed to accept a 3/8” NPT fitting. This provides the owner the
advantage of installing the preferred 3/8” NPT Fitting of choice.
(i.e.: Coilhose Pneumatics Type 58 #5801) This allows the freedom
to use any configuration of quick connect 3/8” NPT Fitting. Install
the 3/8” NPT Fitting into the supplied adapter and gently tighten.
IMPORTANT: The bottom hole of the PORTAMATIC®that is
plugged should NEVER be removed. If plug is removed, the
PORTAMATIC®Nailer will not perform correctly and serious
damage may occur.
26 7
3/8" NPT FI TING
OF CHOICE
T
NEVER REMOVE
PLUG!
Loading the Tool
Insert nails into the nail track and pull back the Pusher
Bracket (Ref. No. 59 Pg. 26) to provide pressure against the
nails. IMPORTANT! For proper operation, never use
the PORTAMATIC®Nailer with less than a 2 inch
stack of nails remaining in the nail track.

(Machine Flat Head Phillips 1/4-20 x 3/8”)
Operating Instructions 43. 50154 Screws – Magazine/Retainer Bracket (2 ea.)
Safety Requirements (Socket Button Head 10-32 x 5/16”)
44. 50155 Washers – Valve Housing Screws (4 ea.)
1. WEAR SAFETY GLASSES and safety shoes for protection
against foreign objects. 45. 50161 Spring – Safety
2. NEVER use a Hammer with a loose head or splintered handle. 46. 50162 Valve Housing Assembly
3. USE ONLY nails from Porta-Nails, Inc. 47. 50163 Ram Head Assembly W/Cap & Screw
4. Air supply hoses should have a minimum working pressure
rating of 150 PSI or 150 percent of the maximum pressure
produced in the power source, whichever is higher. (Ref. 52 & 54)
48. 50477 Face Shoe
5. Check all hoses before connecting to ensure that they are free
from dirt, grit, or particles that could alter the performance of
the tool. 49. 50444 Pusher Finger
50. 2503 Screws – Shoe / Pad / Magazine / Cylinder
Exhaust Valve (4 ea.)
6. An airline Filter and In-Line Air Regulator adjustable to
110PSI Max. are required. (See Illustration)
7. The PORTAMATIC®pneumatic Nailer requires Clean, Dry
Air. Use In-Line Regulator and Filter. DO NOT USE IN-
LINE OILERS WITH THE PORTAMATIC®.Dust, dirt
and other particles in the system can cause premature wearing
of the major components. Cylinder, piston, and o-rings are
especially sensitive to wear caused by dirt abrasion.
(Machine Flat Head Phillips 1/4-20 x 3/4")
51. 2600 Screws – Shoe Base (4 ea.)
(Machine Flat Head 1/4-20 x 1”)
52. 9009 Screw – Ram Head / Main Valve
(Socket Set Screw 1/4 -28 x 1/2” w/Patch)
8. Adjust the In-Line Air Regulator to 90-95 PSI. Be sure that
the tool is not pointed at you or others when it is connected to
the air supply source. NOTE:Some materials may require a
higher pressure of 95-110 PSI in order to countersink the nail.
DO NOT EXCEED 110 PSI!
53. 50281 Hex Adapter –3/8 NPT (Female) x
3/8 NPT (Male)
8
9. NEVER use a defective tool. Replace worn or damaged parts
immediately. Be sure that the Safety Trigger and operating
mechanisms operate correctly and that all screws and seals are
securely tightened at all times.
Pressure Switch set to trip on at
115psi and to trip off at 135psi.
Air Compressor
Accumulator
Tank
Condensate Drain Valve
Drain daily or more
fr
e
q
uentl
y
if needed.
Air Valve
Air Line Filter
Drain Daily
Air Line Regulato
95psi - Adjust up
needed to 110psi
54. 40030 Ram Cap – Rubber
55. 50419 Piston Insert
56. 50420 Piston
57. 50329 Washer – Driver Blade / Piston
58. 50197 Driver Blade
r Set at
ward as
Max.
3/8" Air
Line
PORTAMATIC
Failure to use proper A
Intake Filtration will res
in damge to both the A
Compressor and the T
ir
ult
ir
ool
59. 50443 Pusher Bracket
25

Operation
21. 50187 Guide Assembly (Includes 14,22)
22. 50188 Gate 1. After connection with power source is made, check to be sure
that the airline Regulator pressure is 90-95 PSI. Note: Some
materials may require a higher pressure of 95-100 PSI in
order to countersink the nail. Face Nailing requires
approximately 5 PSI more than Angle Nailing.
23. 50189 Restrictor Plate
24. 50447 Spindle – Constant Force Spring
25. 50453 Spring – Compression – Pusher Finger /
Pusher Bracket 2. Ensure that tool is in proper working order and that there is
no leaking of air. If there is an air leak, Disconnect
Immediately! Refer to the Repair and Maintenance section
of Owner’s Manual.
26. 50158 Rail
27. 50186 Magazine Retainer Bracket 3. After being sure tool is operable, place tool in position to be
used. Always place the tool in proper position against the
Flooring to be nailed before depressing the Trigger and
striking the Ram.
28. 50457 Magazine
29. 50164 Screws – Guide / Magazine / Bracket (4 ea.)
(Socket Flat Head 10-32 x 5/16”) 4. The PORTAMATIC®Nailer has a Safety that prevents
accidental firing if Ram Cap is hit while connected to power
source. Squeeze Safety Lever to enable the Nailer. Releasing
the Safety Lever re-engages the Safety and renders the Nailer
inoperable.
30. 50103 Ram Washer
31. 50180 Shoe Base Pad – 3/4” Flooring
32. 50183 Shoe Base – 3/4” Flooring
33. 50320 Flange Nut – Shoe / Body (2 ea.) (Serrated
Flange Nut 5/16-18)
34. 50125 Shoe - Angled
35. 50126 Screws – Valve Housing / Body (4)
(Socket Cap 10-24 x 1-1/2”)W/4 Washers
(Ref. 44) 5. To operate tool, depress Safety Trigger while tool is in
position of use, and strike the Ram Cap (Ref. No. 47 Pg. 26)
with a minimal stroke from the Hammer.
36. 50198 Piston / Driver Blade & O-Ring Assembly
(Includes 55,56,57,58, & O-Ring) 6. If on the first initial operation a nail does not eject into the
Flooring, repeat Hammer blow. This will ensure that the
Driver Blade/Piston is properly reset to allow the Driver
Blade/Piston (Ref. No. 36 Pg. 26) to be in the correct position
to drive the nail.
37. 50445 Pusher Pivot Pin (Includes 38)
38. 50449 Lock Ring – Pusher Pivot Pin
39. 50140 Safety Stem 7. DO NOT OVERPOWER THE NAILER – A 90lb static
force will fire the Nailer. This is easily achieved by a
minimal stroke of the Hammer. If the Flooring is warped or
bowed, the Ram can be hit firmly to tighten the Flooring. Try
40. 50142 Cover – Safety
41. 50152 Main Valve Assembly & O-Rings
42. 50177 Screw – Face Shoe
24 9

10
to avoid this constant wear, as abusive blows by the hammer
could damage tool.
8. Note: The PORTAMATIC®Nailer will not drive a nail if the
Ram Cap is struck by Hammer and the Safety Trigger is not
depressed.
9. The PORTAMATIC®Nailer is user-friendly and following
these simple instructions, will insure a very high quality
Hardwood Flooring installation.
10. If the nail is not properly seated, increase pressure incrementally
until nail is seated. DO NOT EXCEED 110 PSI!
Nailing Tongue And Groove Flooring
Using the PORTAMATIC® Nailer
1. Install the Face Nailing Shoe on the PORTAMATIC®Nailer
(See Shoe Changing Section Pg. 6 Figure 6).
2. After squaring the Floor and allowing for expansion as
recommended by the Wood Flooring Industry (NWFA, NOFMA
and MFMA), install Felt Vapor Barrier and use chalk line to
identify location of Sub-Floor Nails prior to racking wood to be
nailed. This will help prevent hitting Sub-Floor Nails which can
cause damage to the Driver Blade and Jamming. Place the
grooved edge of the first row of Flooring towards the wall on the
side of the room from which you are starting.
3. Be careful to hit both the Ram Head of the PORTAMATIC®
Nailer and the Flooring with the Gray Cap on the Hammer.
Striking either with the metal end of the Hammer will cause
damage to the Nailer or the Flooring.
4. Depress Safety Trigger, and strike Ram Head of the
PORTAMATIC®Nailer with the Face Nailing Shoe installed.
5. After striking the Ram Head, the actuating cycle of the
PORTAMATIC®Nailer drives one nail into the Flooring.
6. When the nail has been completely driven, the
PORTAMATIC®Nailer will automatically reset, and is ready to
be moved to the next position and drive another nail.
7. Be careful not to drive one nail on top of another. Damage to the
Nailer might result or injury from sparks or a sliver of metal that
might break away if this should occur.
23
REF. PART
NO. NO. DESCRIPTION
1. 1575 Screw–Handle/Valve Housing/ Body (4 ea.)
(Socket Cap 1/4-20 x 1/2")
2. 50454 Screws – Magazine / Standoff (2 ea.)
(Socket Cap 8-32 x 1-1/5”)
3. 50280 Washer – Return Spring (2 ea.)
4. 50010 Screw – Shoe / Body (2 ea.)
(Socket Set 5/16-18 x 2-1/4”)
5. 50294 Cylinder Cushion Ring
6. 50012 Head Gasket
7. 50013 Cylinder Exhaust Valve
8. 50018 Spring - Return
9. 50019 Spring - Discharge (3 ea.)
10. 50020 Piston Cushion
11. 50023 Discharge Valve & O-Rings
12. 50025 Cylinder & O-Rings
13. 50015 Valve Body & O-Ring
14. 50431 Gate Clip & Pin
15. 50160 Extension Handle Assembly W/Safety
(Includes 39,40,45)
16. 50455 Nut – Magazine / Standoff Screws (2 ea.)
(Nyloc 8-32)
17. 50450 Spring - Constant Force & Screw (Ref. 18)
18. 50308 Screw – Constant Force Spring
(Socket Cap 8-32 x 3/16")
19. 50452 Magazine Standoff
20. 50448 Spindle Cap

22
RECOMMENDED EQUIPMENT
•Air Compressor -1-1/2 HP, approximately 5CFM
at 100 PSI. An airline Pressure Regulator set at 90-95
PSI should control line pressure. Air Compressor
must have a Condensate Drain at bottom of
Accumulator Tank. Drain every 24 hours or after
every day’s use. Use an Air Compressor that will
accommodate adjusting the pressure switch to trip on
at 115PSI and to trip off at 135PSI. ALWAYS
follow manufacturers’ recommendations for
adjustments.
DO NOT USE AN IN-LINE OILER WITH THE
PORTAMATIC®.
There should be an Air-Line Filter between the Pressure
Regulator and the Air Compressor to insure clean, dry air.
Filter on Air-Line must be drained after use every day.
Hose - 100’ – 3/8” I.D. Fitting - 3/8” NPT
USE OF THE Porta-Nail
The 1-1/2” and the 2” Porta-Nail and the
PORTAMATIC®, with the standard shoe, drives the nail
into the tongue and groove flooring at a 45° angle. The
orientation of the nail is as depicted.
11
8. If a nail is driven on top of another or a jam occurs, refer to the
“Clearing a Jam” section of the manual on page 11.
9. Slide the PORTAMATIC®Nailer along the Flooring to the
location at which you desire to drive the next nail.
10. Continue until four (4) rows of Flooring have been Face Nailed.
11. Remove the Face Nailing Shoe Accessory from the
PORTAMATIC®Nailer and install the Tongue and Groove
Nailing Shoe (See Shoe Changing Section Pg. 6 Figure 5).
12. Place the groove of the fifth row of Flooring over the tongue of
the fourth row of Flooring and tighten using the Hammer.
Depress the Safety Trigger, and strike Ram Head of the
PORTAMATIC®Nailer with the Tongue and Groove Nailing
Shoe installed.
13. Slide the PORTAMATIC® Nailer along the tongue of the
Flooring to the location at which you desire to drive the next
nail.
14. Continue Step 11 until you have completely nailed all but the
last five (5) rows of Flooring.
15. Remove the Tongue and Groove Nailing Shoe from the
PORTAMATIC Nailer and install the Face Nailing Shoe (See
Shoe Changing Section Pg. 6 Figure 6).
16. Install and nail in place the remaining five (5) rows of
Flooring using the PORTAMATIC®Nailer with the Face
Nailing Shoe installed.
Clearing A Jam
In the event of a jam, the Gate (Ref. No. 22 Pg. 26) can be opened
by pulling the Gate Clip upward. (See Figures 7 and 8) (The
Shoe does not have to be removed to open and close the Gate.)
Follow instructions below.
1. IMMEDIATELY DISCONNECT from power source until jam
is cleared!
2. Remove all Nails in the Magazine.
3. Once Gate is open, clear jam.
4. Inspect to be sure no damage has been done to the Driver Blade,
Guide, Gate, Magazine or Pusher Finger. (If damage has

ACCESSORIES
occurred, repair immediately before connecting to the power
source and continuing.)
The testing of this tool has been accomplished with the
following accessories. For safest operation, it is recommended
that only these accessories be used with this product.
5. Close Gate by placing the Gate Clip Wire over the two hooks of
the Guide as shown and press down to seat and lock the Gate in
place. Make sure the Gate is properly reseated.
6. DO NOT OPERATE WITH GATE OPEN!
WARNING- Since accessories other than those listed have
not been tested with this product; use of such accessories
could be hazardous.
REF. PART
NO. NO. DESCRIPTION
Not Shown 50104 O-Ring Repair Kit
Not Shown 50172 Grease
Not Shown 50200 Shoe Base & Pads for
9/16” Flooring (Black)
Not Shown 50201 Shoe Base & Pads for
3/4” Flooring (Natural)
Not Shown 50202 Shoe Base & Pads for
33/32” Flooring (Green)
Not Shown 50139 Hex Wrenches
Not Shown 50318 Wrench – Shoe / Body
FlangeNuts
Not Shown 50458 Hammer “V” Head
Not Shown 50170 Safety Glasses
Not Shown 50210 Case - PORTAMATIC®
Not Shown 42623 2” Porta-Nails 10 packages
of 1000 Nails
Not Shown 42640 1-1/2” Porta-Nails - Box
of 1000 Nails
CAUTION NEVER pry on the Gate when trying to
unlatch and open the Gate. Prying could cause the ears of
the Guide to break and/or the pins on the side of the Gate
to shear off. ENSURE THAT THE GATE IS SECURE
BEFORE CONTINUING OPERATION.
Order in Qtys. of Five (5).
Not Shown 42646 1-3/16” Porta-Nails - Box
of 1000 Nails
Order in Qtys. of Five (5).
12 21
Not Shown 42620 Porta-Nail Set Tool

Removing and Re-Installing the Cylinder
Assembly Repair and Maintenance
1. After removing the Extension Handle and Main Valve
Housing, remove the Head Gasket, Valve Body
Assembly and the Piston Assembly.
IF AIR IS LEAKING FROM THE NAILER
DISCONNECT IMMEDIATELY!
If air is leaking from the Nailer, inspect to make sure Main
Housing or Extension Handle is not cracked or damaged. If Main
Housing and Extension Handle are not damaged, the head gasket
or an O-Ring may need to be replaced. Refer to Exploded view
Page 26 for Disassembly.
2. Turn the Nailer over and tap lightly on a hard surface
carefully insuring not to damage the Body in any way.
3. The Cylinder should dislodge enough to enable
grasping and removing.
4. To replace the Cylinder, Grease O-rings and make
sure the Piston Cushion is installed in the bottom of the
Cylinder and push the Cylinder back down into the
Body.
1. Remove the Extension Handle (Ref. No. 15 Pg. 26) and
Main Valve Housing (Ref. No. 46) from Main Body by
removing the Main Valve Housing Screws (4) (Ref. No. 35
Pg. 26) and Handle / Body Screws (2) (Ref. No. 1 Pg. 26)
and remove Main Valve Housing.
5. Push Cylinder down to reseal the external O-ring in the
Body and ensure the Cylinder and Piston Cushion are
seated at the bottom of the Body by applying firm
pressure to push down and seat.
2. Check the Head Gasket (Ref. No. 6) to ensure proper positioning
and/or check for a tear or pinched edge around the screw holes.
20
46
6
MAIN
BODY
FIGURE 9
3. If Head Gasket does not look damaged, check Main Valve Upper
and Lower O-Rings and Seal. Remove Ram Head Set Screw and
inspect. Replace if O-Ring is broken or flattened in one or more
spots. Refer to Figure 11 in the “Replacing O-Rings” section.
13

Replacing The Driver Blade/Piston Assembly
1. Remove the Main Valve Housing Screws (4) and Handle to
Body Screws from the Main Body.
2. Remove the Handle / Main Valve Housing from the Main
Body.
3. Remove the Piston Assembly from the Cylinder
(Ref. No. 12).
4. Use a 3/4” Socket and Adjustable Wrench to remove
the old Driver Blade.
5. Apply Loctite Thread Adhesive to the Threads of the New
Driver Blade.
6. Assemble as shown and tighten using a 3/4" Socket and
Adjustable Wrench.
7. Using a Torque Wrench, tighten to a minimum 25 ft/lbs of
Torque.
8. Check that the Driver Blade is tightly held and does not move
freely.
9. Apply Molytex MP2 Grease or equivalent to the O-Ring
around the Piston.
10. When assembling the Driver Blade and Piston in the Cylinder,
be sure the “Rib” of the Driver Blade Faces the Gate.
FIGURE 10
If the Seal is damaged or has separated from the Main Valve,
replace Main Valve. The Seal and Main Valve have been
assembled permanently at the Manufacturing Facility and can not
be repaired in the field.
4. Inspect other O-Rings as described in “Replacing O-Rings”
section Figures 12-16 to ensure proper positioning and
distortion has not taken place. If any of the O-Rings are
distorted, refer to the proper Figure and replace.
5. After inspecting and/or replacing O-Rings, assemble Nailer
and connect to power supply.
14 19

18
FIGURE 15
Driver Blade & Piston Assembly
O-Ring is used on the sealing groove of the Piston.
Grease O-Ring.
15
Replacing O-Rings
Use Texaco Molytex® EP 2 Grease or equivalent. Do
not use greases that cause O-Rings to swell. The use of these
types of greases may prevent Nailer from operating properly.
NEVER USE OIL FOR LUBRICATION!
FIGURE 11
Main Valve
O-Ring is used both on the upper groove as well as the lower
groove. The flat seal in the middle can not be replaced.
O-RINGS
750150
Grease O-rings.

FIGURE 13
FIGURE 12
Cylinder Cylinder Discharge Valve
CYLINDER CUSHION
50294
16
RING
SEALING GR OOVE O-RING
750026
NOTE: INSIDE LIP OF
CUSHION SHOULD B
IN GROOVE OF CYLI
CYLINDER
E INSTALLED
NDER
CHARGE HOLE O-RING
750003
Top O-Ring is used on the sealing groove. Bottom O-Ring is used
on the groove with the charging holes. Grease O-rings. Top Cylinder
Cushion should be positioned as shown with the inside Lip installed
in the top Groove of the Cylinder. Cushion Lip should be securely
“seated” in groove.
O-Ring is used on the O.D. sealing groove. O-Ring is
used on the I.D. groove of the Cylinder Discharge
Valve. Grease O-rings.
FIGURE 13
Cylinder Discharge Valve
O.
GROO
FIGURE 14
Valve Body
D. SEALING
VE O-RING
750026
I. D. GROOVE
O-RING
750022
O-Ring is used on the O.D. sealing groove. O-Ring is used on the
I.D. groove of the Cylinder Discharge Valve. Grease O-rings.
17
O-Ring is used on the sealing groove of the Valve
Body. Grease O-Ring.