PNI Portamatic User manual

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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 that you save it for future reference. FORM P/N 750048 (6/1/2002)

2
PORTAMATIC®
CAT. NO. 421
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. 7)
Firing Mode: Hammer Actuated
Jam Clearance: Hinged Lever Type, Quick Release Gate (See Clearinga Jam Pg. 9)
Dimensions: 19” High x 20” Long x 3” Wide
Weight: Approximately 13 LBS.
*Porta-Nails Must Be Purchased Separately
PNI’s LIMITED TWO YEAR WARRANTY
PNI is proud of the products that it manufactures and warrants them to be free from
defects in materials and workmanship for 2 years. 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. 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 should be sent to:
Porta-Nails, Inc.
4235 US Hwy. 421 N.
Currie, NC 28435

3
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 WORKAREA.
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 WORKAREA 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 fromwork
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.
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 fromnail 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 TRANSPORT TOOL WHILE
DEPRESSING THE TRIGGER.
13. DISCONNECT TOOL FROM AIR SUPPLY
WHEN:
Moving the tool to a new location, performing any
maintenance or repair, clearing a jamor tool is
unattended.
14. NEVER SERVICE WHILE ATTACHED TO AIR
SUPPLY.
Always disconnect the tool fromthe power source
when servicing, or replacing parts.
15. 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.
16. DO NOT OPERATE TOOL IFSAFETY
FEATURES NOT WORKING PROPERLY.
Disconnect tool frompower source if safety trigger or
operating controls are not working properly.
17. USE ONLYPORTA-NAIL FASTENERS.
Only use fasteners recommended by the manufacturer.
Use of other fasteners may cause serious injury,
jamming of tool or improper operation.
18. USE ONLYPRESSURE-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.
19. 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.
20. 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.

4
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
FIGURE 1 FIGURE 2
Face Nailing
Accessory Shoe Cat. No. 50113
Tongue Nailing 33/32” Flooring
Shoe P/N 50125
Shoe Base and Pads
Accessory P/N 50250

5
FIGURE 3 FIGURE 4
Tongue Nailing 3/4” Flooring Tongue Nailing 9/16” Flooring
Shoe P/N 50125 Shoe P/N 50125
Shoe Base P/N 50115 Shoe Base and Pad
Shoe Pad P/N 50114 Accessory P/N 50246
SHOE CHANGING
CONVERSION TO AND FROM FACE NAILING
FIGURE 5
Tongue and Groove Flooring Shoe
Cat. No. 50111
FIGURE 6
Face Nailing Shoe
Cat. No. 50113
Loosen or remove Flange Nuts (Ref. No. 33) with Wrench and Shoe Screw (Ref.
No. 50) to remove and change over fromTongue 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).

6
Nailing Tongue And Groove Flooring
Using the PORTAMATIC® Nailer
1. Install the Face Nailing Shoe on the PORTAMATIC®Nailer (See Shoe Changing
Section Pg. 5 Figure 6).
2. After squaring the Floor and allowing for expansion as recommended by the Wood
Flooring Industry (NWFA, NOFMA and MFMA), 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 use the Brown Cap of the Hammer to hit the RamHead of the
PORTAMATIC®Nailer and the Gray Cap on the Flooring. Using the Brown Cap to
hit the Flooring will destroy the Cap.
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.
8. If a nail is driven on top of another or a jamoccurs, refer to the “Clearing a Jam”
section of the manual on page 9.
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. 5 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 Safety Trigger, and strike RamHead
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 fromthe PORTAMATIC Nailer and
install the Face Nailing Shoe (See Shoe Changing Section Pg. 5 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.

7
Operating Instructions
Safety Requirements
1. WEAR SAFETY GLASSES and safety shoes for protection against foreign objects.
2. NEVER use a Hammer with a loose head or splintered handle.
3. USE ONLY nails from Porta-Nails, Inc.
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.
5. Check all hoses before connecting to ensure that they are free fromdirt, grit, or
particles that could alter the performance of the tool.
6. An airline Filter and Regulator are required.
7. The PORTAMATIC®pneumatic Nailer requires Clean, Dry Air. DO NOT USE
IN-LINE OILERS WITH THE PORTAMATIC®.Dust, dirt and other particles
in the systemcan cause premature wearing of the major components. Cylinder, piston,
and o-rings are especially sensitive to wear caused by dirt abrasion.
8. Adjust the airline 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 95-100 PSI in order to
countersink the nail.
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.
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.
This allows the freedomto 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 bottomhole 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.

8
Loading the Tool
Insert nails into the nail track and pull back the Pusher Bracket (Ref. No. 19 Pg. 17) 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.
Operation
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.
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.
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 striking the Ram.
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 in operable.
5. To operate tool, depress Safety Trigger while tool is in position of use, and strike the
Ram Cap (Ref. No. 47 Pg. 17).
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. 17) to be in the correct position to drive the nail.
7. DO NOT OVERPOWER THE NAILER – A minimal stroke of the hammer will
fire the Nailer. If the Flooring is warped or bowed, the Ramcan be hit firmly to
tighten the Flooring. Try 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 RamCap 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!

9
Clearing A Jam
1. In the event of a jam, the Gate (Ref. No. 22 Pg. 17) 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.)
2. IMMEDIATELY DISCONNECT from power source until jam is cleared!
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 occurred, repair immediately before
connecting to the power source and continuing.)
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!
Figure 7
Pull the tab of Gate Clip to open Gate. Opening
the Gate allows access to the Nail Chamber.
Figure 8
To Close Gate, reset the Gate tab ends under the ears of
the Guide. Reset the Gate Clip Wire over the two hooks
of the Guide and pivot Gate Clip down until seated.
Ensure Gate is secure before continuing operation.

10
Repair and Maintenance
IF AIR IS LEAKING FROM THE NAILER DISCONNECT IMMEDIATELY!
If air is leaking fromthe 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 17 for Disassembly.
1. Remove Extension Handle (Ref. No. 15 Pg. 17) from Main Body and Main Valve
Housing (Ref. No. 46).
2. Remove Main Valve Housing Screws (4) and remove Main Valve Housing.
3. Check the Head Gasket (Ref. No. 6) to ensure proper positioning and/or check for a
tear or pinched edge around the screw holes.
46
6
MAIN
BODY
FIGURE 9
4. 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.
FIGURE 10

11
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.
5. 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.
6. After inspecting and/or replacing O-Rings, assemble Nailer and connect to power
supply.
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. Grease
O-rings.
FIGURE 12
Cylinder
SEALING GROOVE
O-RING
CHARGEHOLE
O-RING
TOP CYLINDER
CUSHION
NOTE:INSIDELIP OF TOP CYLINDER
CUSHION SHOULD BE INSTALLED
IN GROOVE OF CYLINDER.
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.

12
FIGURE 13
Cylinder Discharge Valve
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 14
Valve Body
O-Ring is used on the sealing groove of
the Valve Body. Grease O-ring.
FIGURE 15
Driver Blade & Piston Assembly
O-Ring is used on the sealing groove of the Piston. Grease O-ring.
O-RING

15
Replacing the Driver Blade/Piston Assembly
1. Remove Extension Handle from Main Body and Main Valve Housing.
2. Remove Main Valve Housing Screws (4) and remove Main Valve Housing.
3. Remove Piston Assembly fromthe Cylinder.
4. Check that the Driver Blade is tightly held and does not move freely.
5. Apply Molytex MP2 Grease or equivalent to the O-ring around the piston. NEVER
USE OIL FOR LUBRICATION.
6. When assembling the Driver Blade and Piston in the Cylinder, be sure the Beveled side
of the Driver Blade faces the Magazine Side of the Guide.
O-RING
Removing and Re-Installing the Cylinder Assembly
1. After removing the Extension Handle and Main Valve Housing, remove the Head
Gasket, Valve Body Assembly and the Piston Assembly.
2. Turn the Nailer over and tap lightly on a hard surface carefully insuring not to damage
the Body in anyway.
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.
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.

14
ACCESSORIES
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.
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 50250 Shoe Base & Pads for 33/32” Flooring
Not Shown 50246 Shoe Base & Pads for 9/16” Flooring
Not Shown 50139 Hex Wrenches
Not Shown 50318 Wrench – Shoe / Body Flange Nuts
Not Shown 50039 Hammer (Brown Cap for RamHead, Gray Cap for Floor)
Not Shown 50299 Hammer Cap (Brown)
Not Shown 50170 Safety Glasses
Not Shown 50038 Case - PORTAMATIC®
Not Shown 42623 Porta-Nails 10 packages of 1000 2” Nails
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 bottomof Accumulator Tank. Drain every 24 hours or after
every day’s use. DO NOT USE OIL LUBRICATOR WITH THE
PORTAMATIC.
!"There should be an Air-Line Filter between the Pressure Regulator and the Air
Compressor. 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 Porta-Nail is 2” long and the PORTAMATIC®with the standard shoe drives the nail into the tongue and
groove flooring at a 45-degree angle. The orientation of the nail is as depicted in wood floor joist construction.

15
REF. PART
NO. NO. DESCRIPTION
1. 1575 Screw–Handle/Valve Housing (2 ea.)
2. 1589 Screw – Handle / Body (2 ea.)
3. 50280 Washer – Return Spring
4. 50010 Screw – Shoe / Body (2 ea.)
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. 50402 Pusher Pull Screw
17. 50062 Spring - Constant Force & Screw (Ref. 18)
18. 50064 Screw – Constant Force Spring
19. 50413 Pusher Assembly (Includes 16,25,38)
20. 50067 Spring Spool (2 ea.)
21. 50102 Guide Assembly (Includes 14,25,38)
22. 50080 Access Gate
23. 50327 Restricter Plate
24. 50085 Dowel Pin – Gate / Guide
25. 50403 Pusher Wheels & Screws (4 ea.)
26. 50158 Rail
27. 50090 Magazine Retainer Bracket
28. 50098 Magazine
29. 50101 Screws – Magazine / Bracket (2 ea.)
30. 50103 Ram Washer
31. 50114 Shoe Base Pad - 3/4 Flooring (2 ea.)
32. 50115 Shoe Base - 3/4 Flooring
33. 50320 Flange Nut – Shoe / Body (2 ea.)
34. 50125 Shoe – Angled

16
35. 50126 Screws – Valve Housing / Body (4) W/ 4 Washers (Ref. 44)
36. 50330 Piston / Driver Blade & O-Ring Assembly
37. 50134 Spring Pin – Constant Force Spring / Spools
38. 50415 Knurled Pusher Pull
39. 50140 Safety Stem
40. 50142 Cover – Safety
41. 50152 Main Valve Assembly & O-Rings
42. 50177 Screw – Face Shoe
43. 50154 Screws – Magazine / Retainer Bracket (3 ea.)
44. 50155 Washers – Valve Housing Screws (4 ea.)
45. 50161 Spring – Safety
46. 50162 Valve Housing Assembly
47. 50163 RamHead Assembly W/Cap & Screw (Ref. 52 & 54)
48. 50113 Face Shoe
49. 50164 Screws – Guide / Magazine (2 ea.)
50. 2503 Screws – Shoe / Magazine / Cylinder Exhaust Valve (4 ea.)
51. 2600 Screws – Shoe Base (4 ea.)
52. 9005 Screw – RamHead / Main Valve
53. 50281 Hex Adapter –3/8 NPT (Female) x 3/8 NPT (Male)
54. 40030 Ram Cap – Rubber

17
24
25
16
38
19
27
28
26
29
20
18
37
17
43
39
45 35
1
2
53
15
2
1
5
12
46
44
40
10
42
50
32 50
51
31
50
22
49
14
6
23
21
34
4
11
7
9
48
33
36
52
30
47
54
3
13
8
41

18
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.
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
Damaged or worn seal. Determine location of air escaping.
Replace appropriate seal.
Air is escaping
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.
End of Rail 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.
Nailer is shooting two nails.
Screws holding Magazine (Ref.
#28) may be loose preventing
Rail (Ref. #26) from being held
properly in place.
Tighten Screws (Ref. #49, #29) that
secure the Magazine (Ref. #28) to the
Guide (Ref. #21) and the back
Magazine Retainer Bracket (Ref. #27).
Not driving Nails into the tongue
area Always drive Nails into the tongue area, not the groove.
Tip of Driver Blade (Ref. #36)
broken Check Driver Blade (Ref. #36) and replace if tip is broken.
Air pressure too low Set air pressure to 90-95 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.
Nails are not being counter sunk
into wood and are left sticking out
of wood.
The Piston Cushion (Ref. #10)
could be damaged preventing the
Piston (Ref. #36) 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.

19
Driver Blade (Ref. #36) 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
Ram is stuck in down position
Cylinder Cushion Ring (Ref.
#5) could be loose or
damaged
Check Cylinder Cushion Ring (Ref. #5)
and replace if loose or damaged
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.
Tool partially fires when air hose is
connected
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).