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1
2
Washer
3 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
2 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
PA351 SELECTION GUIDE
CAT NO. DESCRIPTION STD CTN.
50266 PA351 Powder Tool Deluxe Kit 1
52133 PA351 Piston 1
Parts are available through customer service @ 914-235-6300
FASTENER FUNCTIONING
Prior to learning the safe operating procedures for this tool, it is important to understand how a
powder actuated fastener works.A powder actuated fastener is considered to be a direct drive or
forced entry type of fastener because it is driven directly into the base material. The driving action
causes tremendous forces to be applied to the fastener.Powers powder actuated fasteners are
specially designed and manufactured using an austempering process to withstand the forces
imposed during the driving operation. Only fasteners manufactured or supplied by Powers
Fasteners should be used in this tool.
FUNCTIONING IN CONCRETE
The performance of a powder actuated fastener when installed into concrete or masonry base
materials is based on the following factors:
1. Strength of the base material
2. Hardness and concentration of the aggregate
3. Shank diameter of the fastener
4. Depth of embedment into the base material
5. Fastener spacing and edge distance
In addition to these factors, installation tool accessories such as a stop spall which reduces the
tendency of the concrete surface to spall during the driving action can increase the performance
of the fastener.
When a powder actuated fastener is driven into concrete, it displaces the volume of
concrete around the embedded area of the fastener shank. As this occurs, the concrete
directly surrounding the fastener is compressed and in turn presses back against the shank
of the fastener.Additionally, the driving action generates heat which causes particles within
the concrete to fuse to the shank of the fastener.This combination of compression and fusion
holds the fastener in the concrete base material. A similar action occurs when fastening into
block masonry.
Generally, the performance of the fastener in a given concrete strength will increase with greater
embedment depths in a certain range. Depending on the fastener style and base material
strength, embedment depths range from 5/8" to 1-1/2". For depths greater than this range, there
is the possibility of fastener bending or fishhooking which may decrease expected load capacities
and create a safety hazard.
During the driving action, some localized surface spalling of the concrete may occur. Normally,
this is a surface effect which does not effect the performance of the fastener.However, it may
pose an aesthetic problem for exposed applications where a fixture is not used. In cases such as
this, two methods can be used to improve the appearance of the fastening.A stop spall adapter
mounted on the powder actuated tool can help to reduce surface spalling. Another method used
is to drive the fastener through a steel washer to improve the appearance of the application.
FUNCTIONING IN STEEL
The load performance of a powder actuated fastener when installed into steel base materials
is based on the following factors:
1. Thickness of the steel
2. Tensile strength of the steel
3. Shank diameter of the fastener
4. Depth of point penetration through the steel
5. Fastener spacing and edge distance.
When a powder actuated fastener is driven into steel, it displaces the steel laterally 360˚ around
the shank of the fastener.Since steel is an elastic material, it presses back against the shank of
the fastener to hold it in place.As the diameter of the fastener shank is increased, the load
Warranty
All warranties of the products described herein, expressed or implied, including the warranties
of merchantability and fitness for particular purposes are specifically excluded, except for the
following: Powers Fasteners will repair or replace at its sole option any tool part, or fastener
which within five years after sale by Powers Fasteners or its distributors, is found by Powers
Fasteners to be defective in material or workmanship, normal wear and tear excluded.
This is the sole warranty of Powers Fasteners and the sole remedy available to distributor
or buyer.
NOTE — JUST AS NO ONE CAN MERELY READ A BOOK ABOUT DRIVING AN AUTOMOBILE AND THEN HOPE TO RUN IT SAFELY, NO ONE
SHOULD ATTEMPT TO USE ANY POWDER TOOL WITHOUT ADEQUATE,COMPETENT, PERSONAL INSTRUCTION. AND, JUST AS NO AUTOMOBILE
INSTRUCTION BOOK OR INSTRUCTOR CAN FOREWARN A LEARNER AGAINST ALL CONTINGENCIES AND EMERGENCIES, NEITHER CAN POWERS
FASTENERS INSTRUCTORS OR PRINTED INFORMATION DETAIL ALL POSSIBLE CONDITIONS SURROUNDING THE USE OF POWERS TOOLS AND
PRODUCTS.THE MANUFACTURER DISCLAIMS RESPONSIBILITY FOR INJURIES TO PERSONS OR PROPERTY WHICH MAY RESULT FROM DISREGARD
OF THESE OPERATING INSTRUCTIONS.
Introduction
Thank you for purchasing the Powers PA351 low velocity powder actuated tool. This tool
will provide you with excellent performance provided the steps for proper operation and
maintenance are followed. Powder actuated fastening systems can provide a cost effective
method of attaching fixtures for light duty, static load conditions. The systems provided by
Powers Fasteners consist of specially designed fasteners, installation tools, and powder loads
which are designed to function in combination to provide optimum performance.While powder
actuated tools can provide one of the fastest and economical means of fastening, they can also
be dangerous if they are not operated properly.
Prior to operating the PA351 tool, you must be properly trained in the operation and
maintenance of this tool and be issued a Powers Fasteners Qualified Operator Card.When using
the tool, you must have this card in your possession.As part of the training process, you should
read and understand the contents of this instruction manual especially the safety precautions.
Powder actuated tools may be operated only by properly trained operators as described in ANSI
Standard A 10.3, Safety Requirements for Powder Actuated Fastening Systems. For complete tool
operation details, contact your local Powers Fasteners Branch office or distributor
for training.
Remember,safety begins with you! It is your primary responsibility when operating this tool.
Failure to follow the proper operating, maintenance, and safety procedures can result in serious
injury or death to yourself or bystanders. In addition to the training provided,you should be
familiar with any local, state, and federal regulations. If you have any questions which are not
covered in this manual, contact your local Powers Fasteners Branch office or distributor.
TECHNICAL DESCRIPTION
SIZE RANGE
5/8" to 1-5/8" pin lengths, .27 caliber
TOOL DESCRIPTION
The PA351™ is a low velocity, fully-automatic .27 caliber tool which can be used to install .300
head drive pins and 8mm head drive pins in a 10 fastener magazine strip up to 1-5/8" in total
length. The PA351™ is designed for high speed and repetitive volume applications.
TECHNICAL DATA
TOOL BODY PIN LENGTH TOOL LENGTH
Engineered Plastic 5/8" to 1-5/8" Total Length 17"
LOAD TYPE TOOL WEIGHT POWER LEVEL
.27 Caliber in a 10 Load Strip 8 lbs. Brown (2), Green (3),Yellow (4), Red (5)
PIN TYPE
10 fastener magazine
Stop
Spall
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5 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
4 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
FASTENER PENETRATION GUIDE
The following table lists typical embedment or penetration depths expected in the base materials
listed. The penetration will vary depending on the density of the material. This table should be
used as a guide since the consistency of these materials varies.When in doubt, a job site
performance test should be conducted.
DENSITY TYPICAL BASE MATERIAL PENETRATION
Soft Masonry Concrete block 1" -1-1/4"
Average concrete Poured concrete 3/4" - 1"
Dense concrete Pre-stressed/pre-cast concrete 5/8" - 3/4"
EDGE DISTANCE
Do not fasten closer than 3" from the edge of concrete. If the concrete cracks, the fastener may
not hold. Closer edge distances for applications such as sill plates may be permitted if specific
fastener testing has been conducted.
SPACING
Setting fasteners too close together in concrete or masonry can cause cracking.
The recommended minimum distance between fasteners is 3" center to center.
FASTENER LENGTH SELECTION IN CONCRETE
For permanent applications using pins in concrete, first determine the thickness of the fixture to
be fastened. To this, add the required embedment or penetration into the base material. This will
be the fastener shank length required. For applications in the face shell of masonry block, select
a fastener length which will not exceed the thickness of the face shell.
For removable applications with threaded studs,the shank length required is equal to the
embedment depth required. To determine the minimum threaded length, add the thickness of
the fixture and the nut / washer thickness.The nut and washer thickness is equal to the nominal
thread diameter.Do not over tighten threaded parts. Maximum tightening torque values are listed
in the table below. Use of a nut setter is recommended to reduce the possibility of over
tightening the fasteners. For critical applications, perform a job site test.
MAXIMUM TORQUE FOR 1/4" STUD (FT.-LBS.) MAXIMUM TORQUE FOR 3/8" STUD (FT.-LBS.)
24
INSTALLATION IN STEEL
The following guidelines are based on the installation of a fastener in ASTM A 36 structural steel
with the point fully penetrating the steel member. Recommended steel material thickness ranges
from a minimum of 1/8" to a maximum of 3/8". For use in higher strength structural steel,
applications where the point does not penetrate the steel member, or a thickness of steel greater
than 3/8", job site performance tests are recommended.
BASE MATERIAL THICKNESS
Steel base materials should be a minimum of 1/8" in thickness.
EDGE DISTANCE
For installations in A 36 steel,1/2" is the recommended minimum edge distance.
SPACING
The recommended minimum distance between fastenings is 1-1/2" center to center
for installations in ASTM A 36 steel.
FASTENER LENGTH SELECTION IN STEEL
For permanent applications when using pins in steel, first determine the thickness of the fixture
to be fastened. To this, add the thickness of the steel base material plus a minimum of 1/4" to
allow for proper point penetration. This will be the minimum fastener shank length required. Do
not select a fastener length longer than that required for the application. An excessively long
shank can burnish or polish the hole created in the steel resulting in a reduction in load capacity.
For removable applications with threaded studs,the shank length required is equal to the
thickness of the steel base material plus a minimum of 1/4" to allow for proper point
1
2
3
capacity obtained will generally increase provided the steel thickness is sufficient to accept the
fastener.To further increase fastener performance in steel, some fasteners have a knurled shank
which allows the steel to form a key lock into the grooves to provide higher capacities than those
obtained with a smooth shank. For optimum performance, the fastener point should completely
penetrate the steel. Normally,a minimum of 1/4" is allowed for the point length.An increase in
performance can be expected until the fastener no longer completely penetrates through the
steel. At this point,the elastic properties of the steel cause a compression force to be developed
at an angle against the fastener point which reduces load capacity. In thicker steel base materials,
adequate load capacities may be obtained for applications in which the point of the fastener
does not fully penetrate the steel. Job site performance tests are recommended.
Fasteners should not be used in areas that have been welded or cut with a torch as these
procedures may have caused local hardening of the steel. Over driving of the fastener should be
avoided as the rebound created may reduce the load capacity or cause damage to the fastener.
When fastening into unsupported long steel members, it may be necessary to provide support in
the area of the fastening to prevent spring action which can cause inconsistent penetration and
a reduction in load capacity.
SUITABLE BASE MATERIAL
While powder actuated fasteners can be used successfully in concrete, certain masonry materials,
and A 36 steel, some materials are completely unsuitable. Fasteners should never be fired into
hard or brittle materials such as cast iron, tile, glass, or rock.These materials can shatter easily
resulting in a potential safety hazard. In addition, soft base materials such as wallboard,plaster,
or wood are not appropriate as the fastener could pass completely through these materials.The
user should never guess when fastening into any base material. Failure to follow the
recommended installation and safety guidelines can result in severe injury or death to the tool
operator and/or bystanders.
CENTER PUNCH TEST
A center punch test should always be performed to determine the suitability of the base
material for a powder actuated fastening. This test is relatively simple and can help to insure a
safe, successful fastening. Be sure to wear the appropriate eye protection when performing this
test. To begin, select the fastener to be used for the job. Then, place the point of the fastener
against the proposed base material. Strike the fastener with a single hammer blow, then examine
the point. If the point of the fastener is not blunted and the base material has a clear point
indentation, it is acceptable to proceed with the first test installation.
Use of a powder actuated system is not recommended if the following occurs during the center
punch test:
1. The fastener point has been blunted.This indicates that the base material is too hard.
2. The base material cracks or shatters.This indicates that the base material is too brittle.
3. When using an average hammer blow, the fastener penetrates the base material easily.
This indicates that the base material is too soft.
FASTENER INSTALLATION REQUIREMENTS
It is important to understand the required minimum base material thickness requirements along
with the minimum spacing and edge distance requirements. Failure to follow these requirements
can result in an unsuccessful fastening and create a safety hazard.
BASE MATERIAL THICKNESS
Concrete base material should be at least three (3) times as thick as the fastener embedment
penetration. If the concrete is too thin, the compressive forces forming at the fasteners point
can cause the free face of the concrete to break away.This can create a dangerous condition
from flying concrete and/or the fastener and also results in a reduction of fastener holding power.
For applications in the face shell of concrete masonry block, select a fastener length which will
not exceed the thickness of the face shell.
Point
Flattens
No
Indent
Penetration
3"
3"
1/8"
Fixture
Embedment
Embedment
Thread Length
3x
Penetration
Surface
Shatters
Material
Cracks
Fastener Sinks in with
Average Hammer Blow
1/2"
1-1/2"
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7 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
6 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
penetration. This will be the minimum fastener shank
length required. Do not select a shank length longer
than that required for the application. An excessively
long shank can burnish or polish the hole created in the
steel resulting in a reduction in load capacity.To
determine the minimum threaded length, add the
thickness of the fixture and the nut / washer thickness.
The nut and washer thickness is equal to the nominal
thread diameter.
Do not over tighten threaded studs, the maximum
tightening torque is listed in the table below. Use of a
nut setter is recommended to reduce the possibility of
over tightening the fasteners. For critical applications,
perform a job site test.
Fastener
Selection Guide
8MM HEAD DIAMETER DRIVE PINS
10 MAGAZINE STRIP
CAT. STD STD.
NO. SHANK LENGTH BOX CTN.
50240 5/8" K 500 2500
50242 3/4" K 500 2500
50244 3/4" 500 2500
50246 7/8" 500 2500
50248 1" 500 2500
50250 1-1/4" 500 2500
50252 1-1/2" 500 2500
50254 1-5/8" 500 2500
Powder Load
Selection Guide
.27 CALIBER SAFETY STRIP
®
CAT. POWER LOAD STD. STD. MASTER
NO. LEVEL COLOR SIZE BOX CTN. CTN.
50620 2 Brown .27 strip 100 1000 20000
50622 3 Green .27 strip 100 1000 20000
50626 4 Yellow .27 strip 100 1000 20000
50630 5 Red .27 strip 100 1000 20000
.27 CALIBER SAFETY STRIP®MASTER PACK
CAT. POWER LOAD STD. STD. MASTER
NO. LEVEL COLOR SIZE BOX CTN. CTN.
50624 3 Green .27 strip 1000 - 20000
50628 4 Yellow .27 strip 1000 - 20000
50632 5 Red .27 strip 1000 - 20000
Safety Precautions
Safety is your primary responsibility when operating any
powder actuated tool. You must read and understand
the contents of this manual. You must be familiar with
all functional and safety requirements of the tool. It is
your responsibility to obtain proper training and a
Powers Fasteners operator card prior to using this tool in
compliance with the current American National Standard
A10.3 Safety Requirements for Powder Actuated
Fastening Systems and the Federal Occupational Safety
and Health Administration Standards (OSHA). Existing
state or local regulations should also be followed. When
using this tool, you must have the qualified operators
card in your possession.
Revocation of card - Failure to comply with any of the
rules and regulations for safe operation of powder
actuated tools shall be cause for the immediate
revocation of your qualified operator card.
The following is a summary of safety precautions to
be followed when operating a Powers Fasteners powder
actuated tool. Failure to follow these safety instructions
can result in serious injury or death to operators
or bystanders.
PRIOR TO OPERATING THE TOOL
1. Warning signs should always be posted within the area
in which a powder actuated tool is to be used. These
signs should be at least 8" x 10" in size with boldface
type that is not less than 1" in height. The sign should
state “Powder Actuated Tool In Use".
2. Approved safety goggles should always be worn by
operator or bystander, to protect their eyes from flying
particles. Hearing protection should always be worn by
the operator and bystanders when using a powder
actuated tool. Other personal safety protection as
required should also be used.
3. Never modify or fabricate parts for use in your Powers
tool. Use only Powers fasteners, loads, and tool parts.
4. Hands or other body parts must never be placed in front
of muzzle/barrel. Accidental discharge can cause piston
and/or fastener to pass through the operator’s hand.
5. Never compress the tool against any part of the body.
Serious injury or death may result in the event of an
accidental discharge.
6. Always point tool in a safe direction at all times.
7. Use the tool for its intended purpose only.
PREPARATION FOR LOADING THE TOOL
1. Tools must be checked prior to operating to make sure
they are not fully or partially loaded with a powder
load or fastener.
2. To insure safe operation, perform the daily function test
described in this manual. Be sure the tool is not loaded
prior to performing this test.
3. Do not operate this tool unless all its parts are in
place and operating appropriately. Never attempt
to use a malfunctioning tool. Call 1-800-524-3244
for assistance.
4. Never guess about the suitability of a base material.
If you are uncertain about the suitability of a base
material, perform a center punch test.
5. Do not operate the tool until you learn and understand
the color code / numbering system used to identify the
power level of powder loads.
OPERATING THE TOOL
1. Only use fasteners and powder loads designed
for this tool as supplied by Powers Fasteners.
2. Do not use powder actuated tools in a flammable
or an explosive atmosphere.
3. Do not fire a tool without a fastener.The piston will
impact the work surface possibly causing serious injury
to the operator or bystanders along with damage to
the tool.
4. Do not load the tool until you are ready to make a
fastening. Check the power load level before inserting
it into the tool chamber.
5. Fastener must be loaded prior to loading the powder
load, to prevent injury to operator or bystander in the
event of an accidental discharge.
6. Do not close tool against work surface.The tool should
be manually closed, with hand away from muzzle/barrel
to prevent accidental discharge.
7. Hold the tool perpendicular to the work surface at all
times. Use a spall guard wherever possible. This will limit
the possibility of fastener ricochet which could cause
serious injury or death to the operator or bystanders.
8. Always perform a test fastening with the lightest load
level designed for use in the tool. If the lightest load
fails to set the fastener,try the next highest load until
the proper level is attained. Failure to follow this
procedure may cause the fastener to be overpowered.
If this occurs, the fastener may fully penetrate the base
material causing serious injury or death to someone.
Overpowering the fastener can also damage the
tool, creating a safety hazard to both the operator
or bystanders.
9. Do not fasten into cast iron, tile, glass, or other types of
brittle materials.These materials can shatter and create
sharp fragments which may cause injury.
10. Do not fire tool within 3" (three inches) of the edge of
a concrete base material or within 1/2" (one-half inch)
of the edge of a steel base material.
11. Do not attempt to install a fastener closer than 3"
(three inches) to another previously inserted fastener
in concrete or 1-1/2" (one and one-half inch) in steel.
12. Do not fasten into a concrete base material less than
3 times as thick as the fastener penetration or into a
steel base material thinner than 1/8".
13. Never attempt to install a fastener in a cracked or
spalled area in concrete. Place fastener at least 3"
(three inches) away from a spalled area to prevent
the possibility of the fastener bending and striking
an operator or bystander.
14. Do not attempt to install fasteners in areas that have
been welded or cut with a torch as these procedures
may have caused local hardening of the steel.
15. Do not fasten through a predrilled hole unless proper
guidance is provided.
16. If you decide not to make a fastening after the tool has
been loaded, you must always remove the powder load
first followed by the fastener.
17. Never attempt to override the safety features of
this tool.
HANDLING THE TOOL AND POWDER LOADS
1. Never leave a loaded tool unattended. Once the tool
is loaded, make the fastening immediately or unload
the tool.
2. Always unload the tool before work breaks, changing
parts, cleaning or servicing, and when storing.
3. To prevent accidental discharge of loads, never carry the
powder loads in the same container as the fasteners or
other hard objects.
4. Always store the powder loads in the containers
provided or in an enclosure provided for them. Never
intermix the various power levels. Keep them segregated
in clearly identified containers.
5. Powder loads should never be used in firearms.They are
normally more powerful that the cartridges supplied
with the firearms.
6. Powder actuated tools and powder loads should always
be stored under lock and key.Tools must be unloaded
when not in use.
TOOL MALFUNCTION
1. In the event that a load fails to discharge after the
trigger is pulled, the tool must be kept depressed
against the work surface for a minimum of 30 (thirty)
seconds in case of a delayed load discharge.Then
carefully remove the entire load strip. and dispose of it
in a can of water or other nonflammable liquid. Never
attempt to force or pry a load out of a tool chamber.
2. Never discard unfired powder loads into a
trash container.
3. Do not attempt to unload or disassemble a jammed,
stuck or broken tool as improper handling may cause
it to discharge and strike operator and/or bystander.
A jammed tool must be pointed in a safe direction
at all times.Tag the tool and lock it up. Call your
Powers Fasteners representative for proper assistance.
Page 5
9 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
8 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
Single Fastening Tool Operation
CAUTION: — Be sure to read and understand all of the safety precautions and training in this
manual before attempting to operate the tool. (Check to be sure the tool is not loaded, the
piston moves freely within the barrel, and no foreign objects or fasteners are in the barrel.)
Perform the daily function test before using the tool.
Always load the fastener before inserting powder load to prevent injury to the operator or
bystanders in the event of an accidental discharge. Place the fastener, point out, into the end
of the guide until the washer/fluted tip fits inside. Do not use excessive force when inserting the
fastener.If excessive force is required, stop and determine why the fastener cannot be inserted.
Correct the problem before proceeding.
Load the cartridge strip narrow end first by inserting it into the bottom of the tool grip unit flush.
If the strip has been partly used, pull it through until a live cartridge is in the chamber.
Adjust the driving power by turning the regulating wheel.
1 = minimum power
3 = medium power
6 = maximum power
Note: Start with minimum power.If the fastener does not penetrate deep enough,
increase the power.
To make a fastening, place the tool against the work surface. Hold the tool firmly with two
hands and press down. Then squeeze the trigger. Always hold the tool perpendicular to the work
surface. Hold the tool firmly against the work surface to avoid excessive recoil. Never depress the
tool against anything except the work surface.
Never push back the fastener guide with the palm of your hand or other part of your body or by
means of the fastener.IF THE TOOL ACCIDENTALLY DISCHARGES THE PISTON OR FASTENER MAY
PENETRATE YOUR HAND RESULTING IN SERIOUS INJURY
Note: Do not attempt to unload or disassemble a jammed, stuck or broken tool as improper
handling may cause it to discharge and strike the operator and/or bystander. A jammed tool must
be pointed in a safe direction at all times.Tag the tool and lock it up. Call your Powers Fasteners
representative for proper assistance.
Push button in red area of connecting
sleeve and turn sleeve until button
engages green area.
Mounting Nail Magazine to Single Shot
1.
Remove magazine
2.
Push down spring so you can
unscrew nut.
3.
b
¢
Remove guide
5.
Replace with single shot guide
6.
¢
Unscrew the piston guide nut
counterclockwise until it comes off.
4.
¢
Page 6
11 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
10 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
General Cleaning
REPLACING OR REPAIRING THE PISTON
Perform steps 1 through 6 as detailed under Mounting Nail Magazine (pages 9).
To assemble, reverse procedures as detailed above.Then perform steps 7 through 13 under Mounting Nail Magazine (page 10).
Turn piston return spring out of
engagement slots on piston return
spring sleeve
1.
Slide piston return spring sleeve
over spring
2.
Remove piston stopper clip
3.
Remove halves of piston stopper4.Remove piston from piston guide
5.
¢
¢
¢
¢
Screw on nut collar Put on nose piece
8.
Push in green pin and rotate until red
dot is shown
9.
Turn connecting sleeve until button
engages red area. Tool is locked
10.
Note: To modify tool from multi shot magazine to single shot, reverse procedure
detailed on this page and the preceding page.
7.
b
¢
¢
b
Page 7
PA351 Spare Parts Listing
13 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
12 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
Proper Maintenance and Cleaning
MAKE SURE THE TOOL IS NOT LOADED. BE SURE THE TOOL IS NOT HOT PRIOR TO ATTEMPTING
DISASSEMBLY OR CLEANING.
DAILY FUNCTION TEST
Check the functioning of the tool, without a powder load or fastener in the tool, by pushing down against the work
surface, pulling the trigger, and releasing the tool from the work surface. Function the unloaded tool several times and
insure that the breech parts and firing mechanism operate freely before fastening with the tool.
Your Powers Fasteners Authorized representative should be asked to assist the first time you disassemble and clean
your tool.
If you ever have any trouble reassembling the tool, or have any doubt about worn parts, call your Powers Fasteners
Authorized Powder Distributor.
CLEANING
AIl parts should be cleaned with detergent oil and the wire brushes supplied with your tool kit. Remove heavy dirt buildup with the brush. After cleaning with oil,all parts should be wiped thoroughly dry. Excess oil will tend to collect dirt and
dust. Wear eye protection when cleaning the tool. The piston rod, barrel assembly, and receiver should all be cleaned of
excess dirt on a daily basis. Check the condition of the piston for damage from wear and deformation.
To maintain this tool in good working condition, it is necessary to disassemble and clean the entire tool if dirt is evident
in the breech face, or if the tool appears to lose power. All parts should be cleaned with oil and wire brushes. Remove
heavy dirt. All parts should be wiped thoroughly dry after cleaning with oil.
General tool maintenance should be performed at six month intervals or more frequently as required by the frequency
of tool use.
No. Description No. Description No. Description
1 Magazine Box
2 Nail Suplier
3 Knob For Nail Suplier
4 Screw W/Ring
5 Spring For Hook
6 Open Knob
7 M4 Nut
8 Flat Spring
9 M4x 8 Screw
10 Spring Bobbin
11 Bobbin Pin
12 Open Pin
13 Piston Guide Nut
14 Magazine Box Returing Spring
15 Fixing Sleeve C Clip
16 Steel Ball 4.8 Mm
17 Fixing Sleeve
18 Round Head Pin
19 Spring
20 Connecting Sleeve (Plastic)
20 Connecting Sleeve (Aluminium)
21 Magazine Guide
22 Steel Ball For Guide
23 Steel Ball Clip
24 Stop Rubber
25 Stabilizer
26 Single Shot Guide
27 Guide For Single Shot
28 Piston
29 Look Clip
30 Piston Guide
31 Piston Guide C Clip
32 Pressure Pin
33 Piston Pressure Sear
34 Regulation Pin
35 Steel Ball
36 Piston Returing Spring
37 Steel Liner Nut
38 Returning Stopper C Clip
39 Returning Stopper
40 Steel Liner
41 Strip Pressure Ball
42 Strip Pressure Spring Nut
43 Firing Pin
44 Firing Pin Sleeve
45 Flat Spring
46 Firing Pin Detent
47 Firing Pin Return Spring
48 Firing Pin Nut
49 M6x25 Tap Screw
53 Housing
54 Regulation Knob Holder
55 Regulation Knob
56 Regulation Knob Spring
57 Fixing Pin For Knob Fixer
58 Thread Pin
59 Advancer Lever
60 Advancer Lever Guide
61 Washer
62 Advancer Lever Spring
63 Trigger
64 Firing Spring
65 End Cap
66 Trigger Lever
67 Trigger Lever Spring
68 Release Lever Pin
69 Cheese Head Screw
70 Suport Strip Assembly
71 Rubber Grip Screw
72 Rubber Grip
73 Piston Guide Assembly
(Item: 29.30.31.32.33.34.35)
74 Firing Pin Assembly
(Item: 43.46.47.48)
75 Lever Guide Kit
(Item: 59.60.61.62)
76 Magazine Box Assembly
(Item: 1.2.3.4.5.6.7.8.9.10.11.12.)
77 Power Regulation Assembly
(Item: 16.54.55.56.57.)
78 Piston Stopper Assembly
(Item: 38.39)
79 Magazine Guide Assembly
(Item: 2122.23.24.)
80 Single Shot Guide Assembly
(Item:22.23.24.27.)
81 Fixing Sleeve Assembly
(Item:15.16.17.18.19.20.) Plastic
82 Handle Assembly
(Item:66.67.68.69.71.72)
83 Steel Liner Assembly
(Item:19.40.41.42)
Page 8
15 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
14 PA351
MODEL PA351 CAT. NO. 50266/Deluxe Kit
■■✓ Check the correct answer.
1 It is necessary to read the Operator’s Manual
prior to operating a Powers Fasteners low
velocity tool.
■■ Tr ue ■■ False
2 When fastening into concrete, the base
material should be greater than the shank
penetration by at least:
■■ 1 time
■■ 2 times
■■ 3 times
3 When operating a powder actuated tool, your
hand should never be placed:
■■ around the tool body
■■ in front of the tool muzzle
■■ over the tool handle
4 To determine the suitability of a base
material, use the fastener as a center punch.
• If the fastener is blunted, do not fasten; the
material is too:
■■ soft ■■ hard ■■ brittle
• If the fastener penetrates easily, do not
fasten; the material is too:
■■ soft ■■ hard ■■ brittle
• If the material cracks or shatters, do not
fasten; the material is too:
■■ soft ■■ hard ■■ brittle
5 Unsafe applications for powder actuated tools
may be caused by which of the following?
■■ a soft base material
■■ improper powder load
■■ fastening too close to
an unsupported edge
■■ a malfunctioning tool
■■ fastening into a spalled area
■■ fastening through a
pre-existing hole
■■ all of the above
6 Which one of the following building materials
is not suitable as a receiving material (base
material) for powder actuated fasteners?
■■ sheet rock
■■ wood
■■ fiberglass
■■ sheet metal
■■ all of the above
7 When considering the safety of a particular
application, the operator must think about:
■■ the base material
■■ the powder load power level
■■ the operator’s safety
■■ the safety of bystanders
and fellow workers
■■ all of the above
8 The proper loading procedure is: insert fastener
first, powder load second.The fastener should
always be placed in the tool prior to the load.
■■ Tr ue ■■ False
9 Which one of the following materials
is usually suitable for powder
actuated fastenings?
■■ poured concrete
■■ hollow tile
■■ surface hardened steel
■■ glazed brick
10 In concrete, a fastener should be driven no
closer to an unsupported edge than:
■■ 1/2" ■■ 1-1/2" ■■ 3"
11 Fishhooking is a condition which can occur
when a powder actuated fastener strikes a
piece of hard aggregate or very hard concrete,
bends and comes out of the work surface.A
fishhook can cause a serious injury or death.
■■ Tr ue ■■ False
12 Placing a hand over the muzzle bushing of a
loaded tool can result in serious injury from
piston overdrive or an escaping fastener if the
tool is discharged accidentally.
■■ Tr ue ■■ False
13 Piston overdrive is caused by overpowering of
the tool or by discharging the tool against a
soft surface.
■■ Tr ue ■■ False
14 Malfunctioning tools cannot be used and
must be removed from service immediately.
■■ Tr ue ■■ False
15 After conducting a Center Punch Test,
the best way to check the base material
is to set several fasteners using the least
powerful load.
■■ Tr ue ■■ False
16 Safety goggles and hearing protection should
not be worn by the operator and any
necessary bystanders when using the tool.
■■ Tr ue ■■ False
17 A powder actuated tool cannot be safely used
in an explosive or flammable atmosphere.
■■ Tr ue ■■ False
18 List the proper powder load level number
(1-6) next to each color listed.
Red ___ Brown ___
Green ___ Yellow ___
Gray ___ Purple ___
19 The weakest power level should
be used when making the first fastening.
■■ Tr ue ■■ False
20 You can fasten into welded areas of steel.
■■ Tr ue ■■ False
PA351
• The proper procedure if a powder load fails
to ignite is to hold the tool against the work
surface and wait 30 seconds, then proceed
exactly as directed in the Operator’s Manual.
■■ Tr ue ■■ False
• Powers Fasteners powder loads for the
PA351 are .22 caliber, “A” tapered, neck
down, rim fire, short crimped cartridges. No
other powder load may be used in this tool.
■■ Tr ue ■■ False
• Operators should never compress the PA351
or any other powder actuated tool against
any part of their body.
■■ Tr ue ■■ False
• If a piston buffer for the PA351 becomes
deformed, simply remove it, and use the
tool without the buffer?
■■ Tr ue ■■ False
OPERATOR’S NAME DATE
HOME ADDRESS
AGE DATE OF BIRTH
COMPANY NAME
COMPANY ADDRESS
COMPANY PHONE
SIGNATURE DATE
TRIM ALONG DOTTED LINE, PLACE IN ENVELOPE, ADDRESS AS SHOWN AND AFFIX POSTAGE
Troubleshooting
ALWAYS CHECK INSTRUCTION MANUAL FOR PROPER ASSEMBLY OF PARTS
PROBLEM POSSIBLE CAUSE SOLUTION
Fastener Overdriving Power level too high / Pin too short Use a lower powder load level number or a longer pin
Soft base material Check base material suitability section
Tool does not fire Tool not depressed completely See “Tool does not depress completely”section below
Firing pin damaged Replace damaged part(s)
Tool does not depress completely Damaged firing pin parts, ejector, Check the parts for damage or improper assembly
etc. Parts assembled improperly
Power reduction or inconsistent Barrel is not pulled fully Barrel must be pulled out completely to properly
fastener penetration forward when cycling tool. reset the piston
Worn or damaged piston Replace piston or piston ring
or piston ring
Load strip cannot be Improper loading Insert strip from the bottom of the tool handle
inserted into tool
Wrong caliber strip Use proper strip
Load strip will not advance Worn advance lever guide Replace advance lever guide.
This should be performed by qualified individuals
Load will not fire when Tool is not fully depressed Follow safety procedure for misfired load then
trigger is pulled attempt to fully depress tool before pulling trigger
Load will not fire when Load is already fired Cycle tool
tool is fully depressed
and trigger is pulled
Load misfire Follow safety procedure
Broken firing pin Replace firing pin nut. This should be performed by
qualified individuals
Broken or missing Replace firing pin nut. This firing pin nut should be
performed by qualified individuals
Tool cannot be opened Lack of proper cleaning Clean tool thoroughly
or cycled Damaged or bent piston Remove and replace piston
Broken or damaged parts Tag tool with warning “Defective - Do Not Use” place in
locked container and contact your Powers Fasteners
Authorized representative for service
Chipped or damaged piston Tool not held on work surface Machine piston as shown on page 11.
squarely.This allows the piston to Piston regrinding may be performed only by
slip off the head of the pin and qualified individuals
cause damage to the piston
QUALIFIED TOOL OPERATOR EXAMINATION
Page 9
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