Power Fist Air Hammer User manual

8435893
User Manual
Air Hammer with
3 pc Chisels
Please read and understand all instructions before use.
Retain this manual for future reference.
V 2.1

8435893
Air Hammer with
3 pc Chisels
3
For technical questions call: 1-800-665-8685
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1
SPECIFICATIONS
Type 3 pc
Air Consumption @ 90 PSI 5 CFM
Impact Rate 3,600 BPM
Stroke Length 2 in.
Housing Gravity die-casting
Max. Pressure 120 PSI
SAFETY
IMPORTANT SAFETY PRECAUTIONS
WARNING! Read and understand all instructions before using this tool. The operator must follow basic
precautions to reduce the risk of personal injury and/or damage to the equipment. Before allowing
someone else to use this tool, make sure they are aware of all safety information.
WARNING! The warnings, cautions and instructions discussed in this instruction manual cannot cover
all possible conditions and situations that may occur. Common sense and caution are factors that
cannot be built into this product, but must be supplied by the operator.
NOTE: Keep this manual for safety warnings, precautions, operating, inspection and
maintenance instructions.

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8435893V 2.1
WORK AREA
1. Operate in a safe work environment. Keep your work area clean and well lit.
2. Do not use in the presence of flammable gases or liquids.
3. Keep anyone not wearing the appropriate safety equipment away from the work area.
4. Minimize distractions in the work environment. Distractions can cause you to lose
control of the tool.
5. Store tools properly in a safe and dry location to prevent rust or damage.
6. Always lock up tools and keep them out of the reach of children.
PERSONAL SAFETY
CAUTION! Wear protective equipment approved by the Canadian Standards Association (CSA) or
American National Standards Institute (ANSI) when using the tool.
1. Head Protection
a. Always wear impact safety goggles that provide front and side protection for the eyes.
b. Wear the appropriate rated dust mask or respirator.
c. Wear earplugs if the power tool or work environment is noisy.
d. Wear a full-face shield if your work creates metal filings or wood chips.
e. Wear a hard hat to protect your head from falling objects.
2. Gloves
a. The gloves should provide protection based on the work materials.
b. Wear suitable gloves to reduce the effects of vibration.
3. Protective Clothing
a. Wear protective clothing designed for the work environment and tool. Examples are
electrical non-conductive clothes or clothes treated to resist corrosive liquids or materials.
4. Foot Protection
a. Steel toe footwear or steel toe caps to prevent injury from falling objects.
b. Non-skid footwear is recommended to maintain footing and balance.
5. Control the tool, personal movement and the work environment to avoid personal injury or
damage to tool. Stay alert, watch what you are doing and use your common sense.
a. Keep articles of clothing, jewelry, hair, etc., away from moving parts to avoid entanglement
with a tool.
b. Do not operate any machine/tool when tired or under the influence of drugs,
alcohol or medications.
c. Do not overreach when operating a tool. Proper footing and balance enables better control
of a tool in unexpected situations.
d. Use clamps or other practical ways to support or secure the workpiece to a stable
platform. Holding the workpiece by hand or against your body is not stable and may lead
to loss of control and injury.

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VIBRATION PRECAUTIONS
1. This tool vibrates during use. Repeated or long-term exposure to vibration may cause
temporary or permanent physical injury, particularly to the hands, arms and shoulders.
2. Anyone using vibrating tools regularly or for an extended period should first be examined by
a doctor and then have regular medical check ups to ensure medical problems are not being
caused by or worsened from tool use.
3. If you feel any medical symptoms related to vibrations (such as tingling, numbness, and white
or blue fingers), seek medical attention as soon as possible.
4. DO NOT use this tool if one of the following applies:
a. Pregnant
b. Impaired blood circulation to the hands
c. Past hand injuries
d. Nervous system disorders
e. Diabetes
f. Raynaud’s Disease
5. Do not smoke while operating the tool. Nicotine reduces the blood flow to the hands and
fingers, increasing the risk of vibration-related injury.
6. Wear suitable gloves to reduce the effects of vibration.
7. Use the tool with the least amount of vibration, when there is a choice between
different processes.
8. Do not use for extended periods. Take frequent breaks to when using this tool.
9. Let the tool do the work. Grip the tool as lightly as possible
(while still keeping safe control of it).
10. To reduce vibrations, maintain the tool as explained in this manual. If abnormal vibrations
occur, stop using this tool immediately.

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8435893V 2.1
TOOL USE AND CARE
1. Use the correct tool for the job. Do not force a tool or attachment to do the work of a larger
industrial tool. Maximize tool performance and safety by using the tool for its intended task.
2. This tool was designed for a specific function. Do not modify or alter this tool or use it for an
unintended purpose.
3. Securely hold this tool using both hands, unless it is designed for single hand use.
Using a tool with only one hand can result in loss of control.
4. Maintain tools with care (see Maintenance).
5. Remove adjusting keys and wrenches from the tool before operation or connecting it to a power
source. A wrench or key that is left attached to a rotating part of the tool increases the risk of
personal injury.
6. Avoid unintentional starts. Be sure that the throttle/ignition switch is in the neutral or OFF
position when not in use and before connecting it to any air source.
7. Do not carry the tool with fingers near or on the trigger/switch.
AIR COMPRESSOR
Ensure the compressor used with the tool can supply the required Cubic Feet per Minute at the required
PSI (see Specifications).
1. Use proper size and type of air pressure line and fittings.
2. Use only clean, dry, regulated compressed air at the rated range as marked on the tool.
CAUTION! Do not use an air source other than an air compressor to power this tool.
3. Always use an air regulator, an in-line
filter and a moisture trap in your
compressed air system. These
accessories will increase the tool’s life
and keeps the tool in good working
condition. See the diagram for
recommended components of
an air line.
4. Avoid using an air hose that is too long.
The longer the hose, the lower the
pressure that reaches the tool, possibly
causing it to cease functioning.
As well, a longer hose can become a
tripping hazard.
5. Air tool CFM consumption ratings
are based upon a 25% duty cycle. If
you require continuous duty, a larger
compressor is required. Figure. 1

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AIR SOURCE INSTALLATION
WARNING! Never use pure oxygen, carbon dioxide, combustible gases or any bottled gas as an air
source for a tool. Such gases are capable of causing an explosion and serious injury to persons.
1. Set the air pressure regulator on the air compressor to the recommended PSI level (see
Specifications). Do not exceed the tool recommended air pressure. Excess pressure could
result in damage to the tool, to your workpiece or serious injury.
2. Prepare a standard 1/4 in. air connector for use with your tool. Wrap the threaded portion of
the air connector with thread tape. Wrap in a clockwise direction so it will not unravel when
attaching to a quick connector. Attach it to the tool air inlet and tighten.
3. Attach a standard quick connector to the air source’s hose. Attach the air hose to
the tool’s air connector.
4. Check the air line and its connections for air leaks. Do not use the tool until you have
repaired all air leaks.
DISCONNECTING AIR SOURCE
WARNING! Failure to follow these steps could result in severe injury, tool or property damage.
Disconnect tool from air source before cleaning, servicing, changing parts/accessories or
when not in use.
1. Turn hopper regulator to the OFF position.
2. Turn the air regulator to the OFF or L position.
3. Turn off the air compressor.
4. Disconnect the air pressure hose.
5. Discharge any residual pressure inside the tool.

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AIR TOOL LUBRICATION
CAUTION! NEVER use a penetrating oil to lubricate the tool. Penetrating oil may act as a solvent that
will break down the grease and cause the tool to seize up.
1. All air tools are packed in grease to prevent corrosion of internal parts during shipping and
storage. We recommend you clean this out to have optimum performance from your new air
tool. Add a generous amount of air tool oil in the air inlet, and then run the tool under no load
until exhaust is clear to remove packing grease.
2. It is very important that the tool is lubricated. Without lubrication, the tool will not work
properly and parts will wear prematurely. Manually adding a drop or two of air tool oil into the
tool’s male connector once a day is better than using an automatic in-line lubricator. In-line
lubricators should only be required when there are multiple users of the same tool.
3. Air tool oil is the only recommended lubricant for use in all air tools. Do not use other types of
lubricants to oil your tools. Using the wrong lubricant will cause premature tool failure
and/or loss of power. Substitutes may harm the rubber compounds in the tool’s O-rings
and other seals.
4. Keep the airline lubricator filled and correctly adjusted. The in-line lubricator should be regularly
checked and filled with air tool oil. Proper adjustment of the in-line lubricator is performed by
placing a sheet of paper next to the exhaust ports and holding the throttle open approximately
30 seconds. The lubricator is properly set when a light stain of oil collects on the paper.
Excessive amounts of oil should be avoided.
5. Avoid adding too much air tool oil during normal use. Too much oil can cause premature power
loss and eventual tool failure. The tool will need to be taken apart by a qualified technician and
cleaned of excess oil.
6. In the event that it becomes necessary to store the tool for an extended period of time
(overnight, weekend, etc.), it should receive a generous amount of lubrication at that time.
The tool should be run for approximately 30 seconds to ensure oil has been evenly distributed
throughout the tool. The tool should be stored in a clean and dry environment.

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AIR TOOL PRECAUTIONS
1. Air tools produce more noise than their electric counterparts. Extended exposure to this noise
may cause hearing loss.
a. Wear ear protection gear to eliminate or reduce the noise.
b. If possible add a muffling device to the air tool’s exhaust.
2. Do not operate this tool if the air hose is damaged.
a. Inspect the tool’s air line for cracks, fraying or other faults before each use.
b. Discontinue use if a hissing can be heard from the air line or connectors while operating
the tool.
c. Take the following steps if either of the above situations occur:
i. Tag or mark the tool as 'defective' or 'out of service' until repaired.
ii. Contact a qualified person repair or replace the defective component/hose.
3. Prevent damage to air hose by observing the following:
a. Never use the hose to carry the tool.
b. Keep the air hose of the tool and the tool’s work path while in operation. The hose should
always stay behind the tool.
c. Keep the hose away from heat, oil, sharp edges or moving parts.
d. Do not allow people, mobile equipment or vehicles to pass over unprotected air hose.
i. Position air hose away from traffic areas.
ii. Place hose in reinforced conduit.
iii. Place planks on either side of the hose to create a protective trench.
e. Do not wrap hose around the tool as sharp edges may pierce the hose or cause cracks if
wound too tight. Gently coil the hose and either hang on a hook or fasten with a device to
keep hose together when storing.
4. An air hose under pressure that is damaged or disconnected from an air tool may whip around
and cause damage to the work area or personal injury. Secure the compressor’s air hose to a
fixed or permanent structure with clamps or cable ties.

Air Hammer with 3 pc Chisels
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8435893V 2.1
AIR POWER TOOL PRECAUTIONS
WARNING! Immediately switch off the power tool if any of the following occurs:
• Malfunction of the air inlet, air compressor or damage to the air supply hose.
• The switch or trigger is broken.
• User sees or smells smoke.
• The user smells the odor of scorched insulation.
• The chisel moves in an unsafe way.
1. Ensure air source matches the pressure rating of the tool’s motor (see Specifications).
2. Make sure the power switch is in the OFF position before connecting the tool to the air source.
3. Do not place the tool down until the chisel has stopped moving.
The chisel may catch the surface of work material and wrench itself free, causing injury to the
user or others in the work area.
4. Never use a tool with a cracked or worn chisel. Change the chisel before use.
5. Always use both hands when operating the tool, unless the tool is designed for single hand use.
6. Hold tool by insulated gripping surfaces when performing an operation where it may contact
hidden wiring or its own cord. Contact with a live wire will electrify exposed metal parts and
shock the operator.
7. Before using the tool on a work piece, test the tool by running it at the highest no-load speed
for at least 30 seconds in a safe position. Stop immediately if there is any abnormal vibration or
wobbling that could indicate poor installation of the chisel. Check the tool to determine
the cause.
8. Take work breaks to prevent the tool’s motor from overloading and/or overheating.
9. When the tool is in operation, keep hands away from the chisel and the area it is
being applied to.
10. Do not use the tool on any material containing asbestos.
11. Do not touch the chisel or the surface that has been cut with this tool immediately after use.
The surface will be hot and may cause an injury.
12. Do not allow persons who are not familiar with the tool or have not read these instructions to
use the tool.

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8435893 V 2.
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SPECIFIC SAFETY PRECAUTIONS
1. Do not store chisels below 0° C (32° F). Freezing temperatures can make hardened steels
brittle, which can cause breakage and lead to injury.
2. When chipping or scaling in potentially explosive environments, use a spark resistant chisel
(usually made of beryllium copper).
3. Only use this tool with accessories rated to handle the forces exerted by this tool during
operation. Accessories not designed for the forces generated by this tool may break and
forcefully launch pieces, potentially causing serious injury.
4. Attach all accessories properly to the tool before connecting the air supply. Loose accessories
may detach or break during operation.
5. Do not prevent the trigger from being able to return to the off position.
6. Do not use this tool if there is any chance of it coming into contact with live electricity. This tool
is not electrically insulated.
7. Install an in-line shutoff valve to allow immediate control over the air supply in an emergency
even if a hose is ruptured.
8. Do not lay the tool down until it has come to a complete stop. Moving parts can grab the
surface and pull the tool out of your control.
9. Ensure that the chisel is properly attached to the tool before operation.
10. Ensure that the chisel is not dull, cracked, or bent before operation.
11. The chisel will become hot while chipping or scaling. Allow the chisel to completely
cool before touching.
12. Always use recommended replacement chisels.
UNPACKING
1. Carefully remove the parts and accessories from the box. Retain packaging material until you
have carefully inspected and satisfactorily installed or operated the tool.
2. Make sure that all items in the parts list are included.
3. Inspect the parts carefully to make sure the tools and accessories were not damaged
while shipping.
WARNING! Do not operate the tool if any part is missing. Replace the missing part before operating.
Failure to do so could result in a malfunction and serious personal injury.

Air Hammer with 3 pc Chisels
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8435893V 2.1
PARTS IDENTIFICATION
Contents:
• Air hammer
• Retainer spring
• 50 mm blade flat chisel
• 30 mm blade flat chisel
• Pointed chisel
ASSEMBLY
INSTALLING AIR CONNECTOR
Prepare a standard 1/4 in. NPT male air connector for use with your tool.
1. Wrap the external threads of the male connector with sealant tape.
a. Wrap tape in a clockwise direction so it will not unravel.
b. Do not tape all the threads. Leave several open at the front to attach the tool.
2. Screw the connector into the tool’s air inlet and tighten with a wrench until snug.
3. Run compressor at a low volume and check the connection for air leaks. Do not use the tool
until all air leaks are repaired or the faulty component is replaced.
OPERATION
WARNING! Do not use this tool without the retainer spring securely holding the chisel or other
accessory in place.
CAUTION! Always ensure that the tool is in contact with the workpiece before pressing the trigger.
Running the tool free will reduce the tool’s life by placing unnecessarily high loads on the retainer
spring and cylinder.
To install the chisel and secure the retainer spring:
1. Place the chisel into the center of the retainer spring.
2. Lubricate the front opening of the tool with 3-4 drops of air tool oil.
3. Press the spring down to allow the chisel to enter the tool.
4. Slide the chisel shank into the barrel of the Air Hammer.
5. Release the spring to secure the chisel in place.
To operate this tool:
1. Firmly grip the tool with the right hand.
2. Grasp the barrel with the left hand.
3. Squeeze the trigger to operate.

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8435893 V 2.
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MAINTENANCE
WARNING! Disconnect the tool from air supply before changing accessories or performing any
maintenance on the tool.
1. Maintain the tool with care. A tool in good condition is efficient, easier to control and will
prevent unnecessary problems.
2. Keep the tool handles clean, dry and free from oil/grease at all times.
3. Follow instructions for lubricating and changing accessories.
4. Inspect the tool fittings periodically. Have damaged or worn components repaired or replaced
by an authorized technician.
5. Inspect the tool fittings, alignment and hoses and power supply cord and components
periodically. Have damaged or worn components repaired or replaced by an
authorized technician.
6. Sharp tools are safer than dull tools. Applying excessive force while using a dull tool can lead to
slips and cause damage to your work piece or personal injury.
7. Maintain the tool’s label and name plate. These carry important information. If unreadable or
missing, contact Princess Auto Ltd. for replacements.
CAUTION! Only qualified service personnel should repair the tool.
LUBRICATION
Only use the lubricants supplied with the tool or specified by the manufacturer. Other lubricants may not
be suitable and may damage the tool or cause a malfunction during use.
CAUTION! NEVER use a penetrating oil to lubricate the tool. Penetrating oil may act as a solvent that
will break down the grease and cause the tool to seize up.
STORAGE
When not in use for an extended period, apply a thin coat of lubricant to the steel parts to avoid rust.
Remove the lubricant before using the tool again.
DISPOSING OF TOOL
If your tool has become damaged beyond repair, do not throw it out. Bring it to the appropriate
recycling facility.

Air Hammer with 3 pc Chisels
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8435893V 2.1
TROUBLE SHOOTING
If the tool does not function properly or if it is missing parts, contact Princess Auto Ltd. for a solution. If
unable to do so, have a qualified technician service the tool.
Problem(s) Possible cause(s) Suggested solution(s)
Tool runs at normal speed but
loses power under load.
Motor parts worn. Have a qualified technician replace
worn parts.
Lack of air tool oil. Pour air tool oil into air inlet
per instructions.
Tool runs slowly. Air flows
slightly from exhaust.
Motor parts jammed with
dirt particles.
OR
Air flow blocked by dirt.
Check air inlet filter for blockage.
Pour air tool oil into air inlet
as per instructions.
Operate tool in short bursts.
Disconnect air supply. Free motor by
rotating drive shank manually
where applicable.
Repeat above as needed. If this fails,
bring to Princess Auto Ltd. or to a
qualified technician.
Excessive air tool oil in tool. Run tool under no load for short
periods of time until exhaust clears.
Buildup of shipping grease. See Removing Packing Grease section.
Air Flow Regulator is in the
closed position
Open regulator to correct position

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Problem(s) Possible cause(s) Suggested solution(s)
Tool will not run. Air flows
freely from exhaust.
O-rings throttle valve
dislodged from seat
inlet valve.
Have a qualified technician replace
the O-ring.
Damage or excessive
wearing of internal parts.
Bring to Princess Auto Ltd. or a
qualified technician.
Material buildup impeding
motor vanes.
Clean internal mechanism.
Tool will not shut off. O-rings throttle valve
dislodged from seat
inlet valve.
Bring to Princess Auto Ltd. or a
qualified technician.
Loss of power or erratic
performance.
Excessive drain on the air
line. Moisture or restriction
in the air hose. Incorrect size
or type of hose connectors.
Check the air supply. Ensure tool
is connected to a 3/8 in. I.D. or
larger air hose with no kinks or
restrictions and that the fittings are
connected properly.
Air compressor has
insufficient flow.
Ensure tool is connected to a
compressor with a rated flow that
matches the tool.

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8435893V 2.1
PARTS BREAKDOWN
PARTS LIST
No. DESCRIPTION QTY.
1. Air Inlet 1
2. O-ring 2 x 14 2
3. Valve bushing 1
4. Screw 12 x 12 1
5. Spring 1
6. Valve stem 1
7. O-ring 4 x 1.5 1
8. Pin 4 x 20 1
9. Throttle lever 1
10. Handle assembly 1
11. Screw 5 x 5 1
No. DESCRIPTION QTY.
12. Gasket 1
13. Valve 1
14. Valve case 1
15. Pin 4 x 8 1
16. Piston 1
17. Cylinder 1
18. Pin 5 x 8 1
19. Cylinder bushing hex 1
20. Lock shield 1
21. Retainer spring 1

8435893
Manuel d'utilisateur
Marteau
pneumatique
avec 3 ciseaux
Vous devez lire et comprendre toutes les instructions avant d'utiliser l'appareil.
Conservez ce manuel afin de pouvoir le consulter plus tard.
V 2,1

8435893
Marteau
pneumatique
avec 3 ciseaux
3En cas de questions techniques, appellez le: 1-800-665-8685
V 2,1
SPÉCIFICATIONS
Type 3 pièces
Consommation d’air à 90 lb/po carré 5 pi cubes/min
Vitesse d’impact 3 600 coups/min
Longueur de course 2 po
Boîtier Coulage sous pression par gravité
Pression max. 120 lb/po carré
SÉCURITÉ
CONSIGNES DE SÉCURITÉ IMPORTANTES
AVERTISSEMENT ! Lisez et assurez-vous de comprendre toutes les instructions avant d’utiliser cet
outil. L’utilisateur doit respecter les précautions de base afin de réduire le risque de blessure et/ou de
dommage à l’équipement. Avant de permettre à une autre personne d’utiliser cet outil, assurez-vous
qu’elle est au courant de toutes les consignes de sécurité.
AVERTISSEMENT ! Les avertissements, les attentions et les instructions mentionnés dans ce manuel
d’instructions ne peuvent pas couvrir toutes les conditions et situations possible de survenir.
L’opérateur doit faire preuve de bon sens et prendre toutes les précautions nécessaires afin d’utiliser
l’outil en toute sécurité.
REMARQUE : Conservez ce manuel qui contient les avertissements de sécurité, les précautions, les
instructions de fonctionnement, d’inspection et d’entretien.

Marteau pneumatique avec 3 ciseaux
4En cas de questions techniques, appellez le: 1-800-665-8685
8435893
V 2,1
AIRE DE TRAVAIL
1. Travaillez dans un environnement de travail sécuritaire. Gardez votre aire de travail propre et
bien éclairée.
2. N’utilisez pas d’outils électriques en présence de gaz ou de liquides inflammables.
3. Assurez-vous que les personnes qui ne portent pas l’équipement de sécurité approprié ne se
trouvent pas à proximité de l’aire de travail.
4. Minimisez les distractions au sein de l’environnement de travail. Les distractions peuvent
causer une perte de contrôle de l’outil.
5. Rangez les outils correctement dans un lieu sécurisé et sec pour empêcher la rouille
ou les dommages.
6. Gardez toujours les outils dans un endroit verrouillé et hors de la portée des enfants.
SÉCURITÉ PERSONNELLE
ATTENTION ! Portez de l’équipement de protection homologué par l’Association canadienne de
normalisation (CSA) ou l’American National Standards Institute (ANSI) quand vous utilisez l’outil.
1. Protection de la tête
a. Portez toujours des lunettes antiprojections qui offrent une protection frontale et
latérale des yeux.
b. Portez un masque antipoussières ou un appareil respiratoire nominal approprié.
c. Portez des bouchons d’oreilles si l’outil électrique ou l’environnement de
travail est bruyant.
d. Portez un écran facial panoramique si votre travail produit des limailles ou des
copeaux de bois.
e. Portez un casque de protection pour vous protéger de la chute d’objets.
2. Gants
a. Les gants doivent protéger en fonction des matériaux travaillés.
b. Portez des gants appropriés pour réduire les effets des vibrations.
3. Vêtements de protection
a. Portez des vêtements de protection conçus pour l’environnement de travail et pour l’outil.
Des exemples sont des vêtements en tissu non conducteur ou en tissu traité pour résister aux
liquides ou aux produits corrosifs.
4. Protection des pieds
a. Chaussures à embouts d’acier ou à coquilles d’acier pour éviter les blessures dues à la
chute d’objets.
b. Les chaussures antidérapantes sont recommandées pour maintenir la stabilité
et l’équilibre.