PROPOINT 8630972 User manual

V1.0 8630972
1/2 in. dr. MICRO STUBBY
AIR IMPACT WRENCH
USER MANUAL
Please read and understand all instructions before use. Retain this
manual for future reference.

8630972 1/2 in. dr. Micro Stubby Air Impact Wrench V1.0
SPECIFICATIONS
Material
Aluminum Housing
Drive Size
1/2 in.
Air Consumption @ 90 PSI
4.8 CFM
Max. Torque
500 ft-lb
No Load Speed
10,000 RPM
Hammer Mechanism
Twin Hammer
Max. Pressure
90 PSI
Air Inlet
1/4 in. NPT
Recommended Air Hose Size
3/8 in.
Feature(s)
Rear exhaust
SAFETY
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.
SAVE THESE INSTRUCTIONS
Keep this manual for safety warnings, precautions, operating or
inspection and maintenance instructions.
1/2 in. dr. MICRO STUBBY
AIR IMPACT WRENCH
2 For technical questions call 1-800-665-8685

V1.0 1/2 in. dr. Micro Stubby Air Impact Wrench 8630972
HAZARD DEFINITIONS
Please familiarize yourself with the hazard notices found in
this manual. A notice is an alert that there is a possibility of
property damage, injury or death if certain instructions are
not followed.
DANGER! This notice indicates an immediate and specific
hazard that will result in severe personal injury or death if the
proper precautions are not taken.
WARNING! This notice indicates a specific hazard or unsafe
practice that could result in severe personal injury or death if
the proper precautions are not taken.
CAUTION! This notice indicates a potentially hazardous
situation that may result in minor or moderate injury if proper
practices are not taken.
NOTICE! This notice indicates that a specific hazard or
unsafe practice will result in equipment or property damage,
but not personal injury.
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.
NOTE: Minimize distractions in the work environment.
Distractions can cause you to lose control of the tool.
4. Always lock up tools and keep them out of the reach
of children.
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8630972 1/2 in. dr. Micro Stubby Air Impact Wrench V1.0
PERSONAL SAFETY
WARNING! Wear personal protective equipment approved by
the Canadian Standards Association (CSA) or American
National Standards Institute (ANSI).
PERSONAL PROTECTIVE EQUIPMENT
1. Always wear impact safety goggles that provide front and
side protection for the eyes. Wear a full-face shield if your
work creates metal filings or wood chips.
a. Eye protection equipment should comply with ANSI
Z87.1 standards.
2. Wear gloves that provide protection based on the work
materials or to reduce the effects of tool vibration.
3. Non-skid footwear is recommended to maintain footing
and balance in the work environment.
4. Steel toe footwear or steel toe caps to prevent injury from
falling objects.
5. Wear protective clothing designed for the work
environment and tool.
6. Wear a NIOSH approved respirator when working on
materials that produce dust or particulate matter.
7. This tool can cause hearing damage. Wear hearing
protection gear with an appropriate Noise Reduction
Rating to withstand the decibel levels.
PERSONAL PRECAUTIONS
Control the tool, personal movement and the work
environment to avoid personal injury or damage to the tool.
1. Do not operate any tool when tired or under the influence
of drugs, alcohol or medications.
4 For technical questions call 1-800-665-8685

V1.0 1/2 in. dr. Micro Stubby Air Impact Wrench 8630972
2. Avoid wearing clothes or jewelry that can become
entangled with the moving parts of a tool. Keep long hair
covered or bound.
3. Do not overreach when operating the tool. Proper footing
and balance enables better control in
unexpected situations.
4. Support the workpiece or clamp it to a stable platform.
Holding the workpiece by hand or against your body may
lead to personal injury.
5. Securely hold this tool using both hands. Using a tool with
only one hand can result in loss of control.
SPECIFIC SAFETY PRECAUTIONS
WARNING! DO NOT let comfort or familiarity with product
(gained from repeated use) replace strict adherence to the
tool safety rules. If you use this tool unsafely or incorrectly,
you can suffer serious personal injury.
1. Use the correct tool for the job. This tool was designed for
a specific function. Do not modify or alter this tool or use it
for an unintended purpose.
2. Only use accessories that are specifically designed for use
with the tool. Make sure accessories are capable of
handling the tool's maximum speed of 10,000 RPM. Ensure
the accessory is tightly installed.
3. Keep hands and fingers away from work area. Any part
of body coming in contact with moving parts could
cause injury.
4. When operating the tool, use proper eye, breathing and
hearing protection as well as protective gloves.
WARNING! Flying debris can cause permanent eye damage.
Prescription eyeglasses are not a replacement for proper
eye protection.
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8630972 1/2 in. dr. Micro Stubby Air Impact Wrench V1.0
5. Use protective gloves that will reduce vibration and protect
your hands in case of unexpected situations.
6. Do not place hands over air vents. Proper cooling of the
motor is necessary to ensure normal life of the tool.
7. Never point the tool towards yourself. If it should slip, part
of your body could come in contact with moving parts.
8. Never force the tool. Excessive pressure could bend or
break the mandrel, resulting in damage to the tool, your
work piece or serious personal injury. If your tool runs
smoothly under no load, but does not run smoothly under
load, then excessive pressure is being used.
9. This tool will not stop moving immediately. Do not lay the
tool down or leave it unattended until it has come to a
complete stop. A part that is moving could make the tool
jump or grab a surface and pull the tool out of your control.
10. Use an appropriate dust respirator when working for an
extended period of time. This will help prevent breathing in
the fine dust created while working.
WARNING! Dust that is created by power sanding, sawing,
grinding, drilling, and other construction activities may
contain chemicals that are known to cause cancer, birth
defects, or other genetic abnormalities. The level of risk from
exposure to these chemicals varies, according to how often
this type of work is performed. In order to reduce exposure to
these chemicals, work in a well-ventilated area, and use
approved safety equipment, such as a dust mask that is
specifically designed to filter out microscopic particles.
11. Always check accessory bits for damage before each use.
Damaged accessories can break during use and cause
serious injury.
12. Never touch the socket during or immediately after use.
After use, the socket will be too hot to be touched by
bare hands.
6 For technical questions call 1-800-665-8685

V1.0 1/2 in. dr. Micro Stubby Air Impact Wrench 8630972
13. If devices are used for the connection of dust extraction
and collection facilities, ensure these are connected and
properly used. Use of a dust collection system reduces
dust-related hazards.
AIR TOOL PRECAUTIONS
1. Extended exposure to air tool noise may cause hearing
loss. Ear protection gear can reduce or eliminate the
noise level.
2. Inspect the tool's air line for cracks, fraying or other faults
before each use. Discontinue use if the air line is damaged
or hissing is heard from the air line or connectors, while
operating the tool. Replace the defective component/
air line.
3. Do not allow people, mobile equipment or vehicles to
pass over the unprotected air line. Position the air line
away from high traffic areas, in a reinforced conduit or
place planks on both sides of the airline to create a
protective trench.
4. Prevent damage to the air line by observing the following:
a. Never carry the tool by the air line.
b. Keep the air line behind the tool and out of the tool's
work path.
c. Keep the air line away from heat, oil, sharp edges or
moving parts.
d. Do not wrap the air line around the tool as sharp
edges may pierce or crack the airline. Coil the air
line when storing.
5. A damaged or disconnected air line under pressure may
whip around and inflict personal injury or damage the work
area. Secure the compressor's air line to a fixed or
permanent structure with clamps or cable ties.
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8630972 1/2 in. dr. Micro Stubby Air Impact Wrench V1.0
6. Install an in-line shutoff valve or regulator to allow
immediate control over the air supply in an emergency,
even if a hose is ruptured.
VIBRATION PRECAUTIONS
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.
1. 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. Pregnant
women or people who have impaired blood circulation to
the hands, past hand injuries, nervous system disorders,
diabetes, or Raynaud’s Disease should not use this tool. 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.
2. Do not smoke during use. Nicotine reduces the blood
flow to the hands and fingers, increasing the risk of
vibration-related injury.
3. Wear suitable gloves to reduce the vibration effects on
the user.
4. Use tools with the lowest amount of vibration when there is
a choice between different processes.
5. Do not use for extended periods. Take frequent breaks
when using this tool.
6. Let the tool do the work. Grip the tool as lightly as possible
(while still keeping safe control of it).
WARNING! If abnormal vibrations occur, stop using this
tool immediately.
8 For technical questions call 1-800-665-8685

V1.0 1/2 in. dr. Micro Stubby Air Impact Wrench 8630972
UNPACKING
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 personal injury.
Remove the parts and accessories from the packaging and
inspect for damage. Make sure that all items in the parts list
are included.
ASSEMBLY & INSTALLATION
INSTALLING AIR QUICK COUPLER
Prepare a standard 1/4 in. NPT male air quick coupler for use
with your tool.
1. Remove the plastic cap from the air inlet.
2. Wrap the external threads of the male quick coupler with
sealant tape.
a. Wrap the tape in a clockwise direction so it will
not unravel.
b. Do not tape all the threads. Leave several leading
threads unwrapped for easier alignment.
3. Screw the quick coupler into the tool's air inlet and tighten
with a wrench until snug.
4. Run the 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.
NOTE: Vibration may cause failure if a quick coupler is
connected directly to the air drill. To overcome this, connect a
leader hose to the tool. A quick coupler may then be used to
connect the leader hose to the air line hose.
Visit www.princessauto.com for more information 9

8630972 1/2 in. dr. Micro Stubby Air Impact Wrench V1.0
SOCKET INSTALLATION
Turn off the air compressor and disconnect the air hose when
changing sockets. After attaching the socket, attach the air
hose and turn the air compressor on.
Make sure that the nut or bolt you are using the tool to tighten
is rated for 10,000 RPM or greater. If available, check the
recommended torque specifications of the nut.
1. Select the appropriately sized 1/2 in. drive impact socket
for the job.
NOTE: Only use impact sockets which are specifically
designed for use with an impact wrench. Do not use worn or
damaged sockets.
2. Push and snap the socket (sold separately) onto the anvil.
OPERATION
WARNING! This tool generates considerable torque when in
use. Always hold the tool securely when using, and brace
yourself to resist the torque which will be delivered to the
work piece.
1. Tighten the nut as far as you can by hand before using the
air impact wrench.
2. Connect the air impact wrench to the air hose.
3. Place the socket on the nut and grip the air impact
wrench tightly. Squeeze the trigger to activate the tool
in clockwise rotation.
NOTE: For reverse (counterclockwise) rotation, turn the
reversing switch located on the back of the tool to activate
the reverse rotation.
10 For technical questions call 1-800-665-8685

V1.0 1/2 in. dr. Micro Stubby Air Impact Wrench 8630972
NOTE:If the impact wrench does not tighten the fastener to
your satisfaction, do not raise the air pressure on the
compressor over 90 PSI. Pressure above 90 PSI will strip the
work piece and damage the tool, potentially causing tool
failure and serious injury. Use other appropriate methods and
tools to tighten the nut.
4. When the fastener is tightened, release the trigger and
remove the tool and socket.
5. Use a mechanical torque wrench to check the
fastener torque.
6. When finished with the tool, turn off the air compressor,
disconnect the air hose and discharge any residual air
remaining in the tool. Put the butterfly air impact wrench
away in a storage area.
CARE & MAINTENANCE
WARNING! Disconnect the tool from the air supply before
changing accessories, servicing or performing maintenance.
1. Maintain the tool with care. A tool in good condition is
efficient, easier to control and will have fewer problems.
2. Inspect the tool fittings, alignment, hoses and power supply
cord periodically. Have damaged or worn components
repaired or replaced by an authorized technician. Only use
identical replacement parts when servicing.
3. Follow instructions for lubricating and changing accessories.
4. Only use accessories intended for use with this tool.
5. Keep the tool handles clean, dry and free from oil/grease at
all times.
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8630972 1/2 in. dr. Micro Stubby Air Impact Wrench V1.0
6. Maintain the tool’s labels and name plates. These carry
important information. If unreadable or missing, contact
Princess Auto Ltd. for replacements.
WARNING! Only qualified service personnel should repair the
tool. An improperly repaired tool may present a hazard to the
user and/or others.
LUBRICATION
Only use air tool oil to lubricate the tool. Other lubricants
may not be suitable and could damage the tool or cause a
malfunction during use.
1. It is very important that the tool be properly lubricated.
Without proper lubrication, the tool will not work properly
and parts will wear prematurely. Manually dropping a drop
or two of air tool oil once a day into the tool's male
connector is better than using an automatic in-line
lubricator, which should only be required when there are
multiple users of the same tool.
2. Keep the air line 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.
3. Air tool oil is the only recommended lubricant for use in all
air tools. Do not try to use other types of lubricants to oil
your tools. Using the wrong lubricant will cause premature
tool failure and / or loss of power. Use only recommended
lubricants, specially made for pneumatic applications.
Substitutes may harm the rubber compounds in the tool's
O-rings and other rubber parts.
12 For technical questions call 1-800-665-8685

V1.0 1/2 in. dr. Micro Stubby Air Impact Wrench 8630972
4. Oiling your air tool regularly is important, but also is
important not to OVER oil your air tool. Over oiling can
cause premature tool failure. Your tool may not be ruined,
but it will begin to experience loss of power that will
continually get worse until it no longer works. The tool then
has to be taken apart and cleaned of excess oil.
5. All air tools are packed in grease to prevent corrosion of
internal parts during shipping and storage. We recommend
that you clean this out to have optimum performance
from your new air tool. Use two drops of air tool oil to
lubricate the tool and run the tool under no load until
exhaust is clear.
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.
NOTICE! 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.
DISPOSAL
Recycle a tool damaged beyond repair at the
appropriate facility.
Visit www.princessauto.com for more information 13

8630972 1/2 in. dr. Micro Stubby Air Impact Wrench V1.0
TROUBLESHOOTING
Visit a Princess Auto Ltd. location for a solution if the tool does
not function properly or parts are missing. If unable to do so,
have a qualified technician service the tool.
PROBLEM
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.
Cam clutch is worn due
to lack of lubricant.
1. Lubricate the
clutch housing.
2. Check for excess
clutch oil. Overfilling can
cause drag on high speed
clutch parts.
Grease lubrication note:
Heat usually indicates
insufficient grease in
chamber. Severe
operating conditions
may require more
frequent lubrication.
Tool runs slowly.
Air flows slightly
from exhaust.
Motor parts jammed
with dirt particles.
1. Check air inlet
filter for blockage.
2. Pour air tool lubricating
oil into the air inlet
as per instructions.
3. Operate the tool in
short bursts quickly
reversing rotation
back and forth
where applicable.
4. Repeat above as
needed. If this fails, return
to service centre.
14 For technical questions call 1-800-665-8685

V1.0 1/2 in. dr. Micro Stubby Air Impact Wrench 8630972
PROBLEM
POSSIBLE CAUSE(S)
SUGGESTED
SOLUTION(S)
Tool will not run.
Air flows freely
from exhaust.
O-rings throttle
dislodged from seat
inlet valve.
1. Pour air tool lubricating
oil into air inlet as per
instructions.
2. Operate the tool
in short bursts of forward
and / or reverse rotation
where applicable.
3. Tap the motor housing
gently with
a plastic mallet.
4. Disconnect the air
supply. Free the motor by
rotating the drive shank
manually where
applicable.
5. If the tool remains
jammed, return to service
centre.
Tool will not
shut off.
O-rings throttle valve
dislodged from seat
inlet valve.
Have a qualified
technician replace
the O-ring.
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.
If the tool is not
connected to the air line,
connect it properly.
NOTE: Repairs should be carried out by a qualified technician.
Visit www.princessauto.com for more information 15

8630972 1/2 in. dr. Micro Stubby Air Impact Wrench V1.0
PARTS BREAKDOWN
16 For technical questions call 1-800-665-8685

V1.0 1/2 in. dr. Micro Stubby Air Impact Wrench 8630972
PARTS LIST
PART#
DESCRIPTION
QTY
1
Socket Cap Screw Washer
8
2
Hammer Housing
1
3
Hammer Case Bushing
1
4
O-Ring
1
5
Retainer Ring
1
6
Drive Anvil
1
7
Hammer Cage
1
8
Hammer Cam
2
9
Hammer Pin
2
10
Motor Housing Gasket
1
11
Housing
1
12
Trigger
1
13
Throttle Bushing
1
14
Throttle Valve
1
15
Throttle Spring
1
16
Air Exhaust Deflector
1
17
Air Inlet Bushing
1
18
Ball Bearing R8
1
19
Front End Plate
1
20
Cylinder
1
21
Pin
1
22
Rotor
1
23
Rotor Blade
6
24
Rear End Plate
1
25
Ball Bearing R8
1
26
Motor Housing Gasket
1
27
Housing Cap
1
28
O-Ring
1
29
E-Ring
1
30
Reversing Switch
1
31
Regulator Valve Detent Spring
1
32
Regulator Valve Detent Ball
1
Visit www.princessauto.com for more information 17

V1,0 8630972
Clé à chocs pneumatique
micro tronquée à prise de 1/2 po
MANUEL D'UTILISATEUR
Vous devez lire et comprendre toutes les instructions avant d'utiliser
l'appareil. Conservez ce manuel afin de pouvoir le consulter plus tard.

8630972 Clé à chocs pneumatique micro tronquée V1,0
à prise de 1/2 po
SPÉCIFICATIONS
Materiau Boîtier en aluminium
Taille de prise
1/2 po
Consommation d’air à
90 lb/po carré
4,8 pi cubes/min
Couple max.
500 pi-lb
Vitesse à vide 10 000 tr/min
Mécanisme de percussion
Marteau double
Pression max. 90 lb/po carré
Entrée d’air
1/4 po NPT
Taille de tuyau à
air recommandée
3/8 po
Caractéristique(s)
D’échappement arrière
SÉCURITÉ
AVERTISSEMENT ! Veuillez lire et comprendre toutes
les instructions avant d'utiliser cet outil. L'utilisateur doit
respecter les précautions de base lorsqu'il utilise cet
outil afin de réduire le risque de blessure ou de dommage
à l'équipement.
CONSERVER CES INSTRUCTIONS
Conservez ce manuel qui contient les avertissements de
sécurité, les précautions, les instructions de fonctionnement ou
d'inspection et d'entretien.
Clé à chocs pneumatique
micro tronquée à prise de 1/2 po
2 En cas de questions techniques, appelez le 1-800-665-8685