PT M631 User manual

1/2 IN. DR. X-TREME IMPACT WRENCH
OWNER’S MANUAL
Stock Number M631
SPECIFICATIONS:
Drive Size ..........................................1/2 in.
Max Reverse Torque..............................1010 ft. lbs.
Max Forward Torque ..............................885 ft. lbs.
Working Torque ...............................50-750 ft. lbs.
Air Pressure .......................................90 p.s.i.
Average Air Consumption .............................7 CFM
Free Speed .....................................9,500 RPM
Air inlet (N.P.T.) ......................................1/4 in.
Hose size (I.D.) ......................................3/8 in.
Weight ...........................................4.9 lbs.
Specifications are subject to change without notice.
WARNING!
READ, UNDERSTAND AND FOLLOW ALL INSTRUCTIONS AND WARNINGS
BEFORE OPERATING THIS TOOL. FAILURE TO DO SO MAY RESULT IN
PERSONAL INJURY AND/OR PROPERTY DAMAGE AND WILL VOID
WARRANTY.
LIMITED WARRANTY
PERFORMANCE TOOL® extends only the following warranties, and only to original
retail purchasers. These warranties give specific legal rights. Except where prohibited
by local law, the law of the State of Washington governs all warranties and all
exclusions and limitations of warranties and remedies. There may be other rights which
vary from state to state.
PERFORMANCE TOOL® warrants the product to be free from defects in materials and
workmanship under normal use and service. A defective product may be returned for
a free replacement within 90 days from the date of purchase, provided that product is
returned to place of purchase immediately after discovery of defect. After 90 days and
up to one year from date of purchase, PERFORMANCE TOOL® will replace at no
charge any parts which our examination shall disclose to be defective and under
warranty. These warranties shall be valid only when a sales receipt showing the date of
purchase accompanies the defective product or defective part (s) being returned. For
part (s) after 90 days, please remit your request, postage prepaid to:
PERFORMANCE TOOL, P.O. Box 88259 Tukwila, WA 98138
These warranties exclude blades, bits, punches, dies, bulbs, fuses, hoses, and other
consumables which must be replaced under normal use and service. These warranties
shall not apply to any product or part which is used for a purpose for which it is not
designed, or which has been repaired or altered in any way so as to affect adversely
its performance or reliability, nor shall these warranties apply to any product or part
which has been subject to misuse, neglect, accident or wear and tear incident to
normal use and service.
PERFORMANCE TOOL® does not authorize any other person to make any warranty or
to assume any liability in connection with its products.
Except for warranties of title and the limited express warranties set forth above,
PERFORMANCE TOOL® makes no express or implied warranties of any kind with
respect to its products. In particular, PERFORMANCE TOOL® makes no implied
warranty of merchantability and no implied warranty of fitness for any particular
purpose, except that for goods purchased primarily for personal, family or household
use and not for commercial or business use, PERFORMANCE TOOL® makes an
implied warranty of merchantability (and, if otherwise applicable, an implied warranty
of fitness for a particular purpose), but only for the particular qualities or
characteristics, and for the duration, expressly warranted above.
The laws on limitation of implied warranties may differ from state to state, so the
above limitations may not apply in all cases.
PERFORMANCE TOOL® shall not be liable for consequential, incidental or special
damages resulting from or in any manner related to any product, or to the design, use,
or any inability to use the product. The sole and exclusive remedy for a defective
product or part shall be the repair, or replacement thereof as provided above. The laws
on limitation of remedies or on consequential, incidental or special damages may vary
from state to state, so the above limitations may not apply in all cases.
© Copyright 2019 WILMAR CORPORATION, P.O. Box 88259 Tukwila, WA 98138

IMPORTANT SAFETY INFORMATION
1. Always work in a clean, dry, well-ventilated area free of combustible materials. Never
operate the tool near flammable substances such as gasoline, naphtha, cleaning
solvent, etc.
2. Dress properly. Do not wear loose clothing. Tie up or cover long hair, remove any
jewelry, necklaces, etc., which might become caught by the tool.
3. Keep the work area well lit and free of clutter. Slips, trips and falls are major causes of
workplace injury. Be aware of excess air hose left on your walking way or on the
working surface.
4. Ensure that there are no electrical cables, gas pipes, etc., which can cause a hazard if
damaged by use of the tool.
5. Keep visitors a safe distance from the work area. Keep children away.
6. Stay alert and use common sense. Watch what you are doing. Do not operate the tool
when you are tired or under the influence of alcohol, drugs or medication.
7. Do not overreach. Keep proper footing and balance at all times.
8. Always wear eye protectors which provides protection from flying particles from the
front and side when using the tool. Ear protectors should also be worn.
9. Never use oxygen, carbon dioxide, combustible gases or any other type of bottled
gases as a power source for this tool.
10. Always verify prior to using this tool that the air source has been adjusted to the rated
air pressure range. Never connect to an air source that is capable of exceeding 200psi.
11. Do not connect the air supply hose to the tool with your finger on the trigger.
12. Do not exceed the maximum working pressure 90psi/6.3bar for the tool. Excessive
pressure will reduce the tool life and/or might cause a hazardous situation.
13. Never leave the operating tool unattended. Disconnect the air hose when the tool is
not in use.
14. Keep the air supply hose away from heat, oil and sharp edges.
15. Check the air supply hose for wear and/or leaks before each use. Make sure that all
connections are tight and secure.
16. Do not use the tool for any other than its intended use.
17. Do not carry out any alternations and/or modifications to the tool.
18. Always disconnect the tool from air supply before replacing any accessories,
performing any repair and maintenance, moving to another work area, or passing the
tool to another person.
19. Never use the tool if it is defective, damaged, or operating abnormally.
20. Check for misalignment or binding of moving parts, breakage of parts and any other
condition that affects the tool operation. If damaged, have the tool serviced before using.
21. Keep working parts of the tool away from hands and body.
22. Do not carry the tool by the air hose.
23. Do not apply excessive force of any kind to the tool. Let the tool perform the work at
the rate as it was designed.
24. Do not remove any labels on the tool. Replace if they become obscured or damaged.
25. Always maintain the tool with care. Keep it clean for the best and safest performance.
26. It is not recommended that quick change couplings should be located directly at the
air inlet, as they add weight and could fail due to vibration.
27. This tool vibrates with use. Continuous operation of this tool might be harmful to your
hands or arms. Stop using the tool if discomfort, a tingling feeling or pain occurs.
Resume work after recovery. Seek medical advice if a serious symptom occurs.
WARNING!
READ, UNDERSTAND AND FOLLOW ALL INSTRUCTIONS AND
WARNINGS BEFORE OPERATING THIS TOOL. FAILURE TO DO
SO MAY RESULT IN PERSONAL INJURY AND/OR PROPERTY
DAMAGE AND WILL VOID WARRANTY.
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1. Remove the air inlet protective cap from the air inlet.
2. Mount a male plug by hand into the air inlet.
NOTE: Use thread sealant tape on the male plug and tighten it with a wrench for
airtight connection. Do not overtighten.
3. Place 2 - 3 drops of air tool oil into the male plug before each use.
4. Choose the correct impact socket (not provided) as needed and mount it onto the anvil.
5. If necessary, use an extension bar (not provided) and then mount impact socket onto
the bar.
6. Connect air supply hose to the male plug.
7. Set the working pressure at 90psi/6.3bar for best tool performance.
NOTE: Working pressure refers to the air line pressure set to tool when tool is under
working conditions.
OPERATION
1. How to install/tighten threaded fasteners.
Turn the switch forward and have the arrow on the switch pointing at either of the three
dots on the back housing as shown. Press the variable speed trigger to apply the
needed force for your application. The tool anvil runs clockwise.
2. How to remove/loosen threaded fasteners.
Turn the switch backward and have the arrow on the switch pointing at the large dot on
the back housing as shown in the picture above. Press the trigger. The tool anvil runs
counterclockwise.
NOTE: This tool features a power regulator valve. Turn the switch slowly forward until
desired output is achieved. The three dots (small, medium, large) do not denote a
specific power output but are only for reference. "Setting 1" (small dot) is the least
amount of power, which is suitable for just mounting threaded fasteners on workpiece
while "Setting 3" (large dot) is the greatest amount of power, which is for tightening
threaded fasteners on workpiece. This tool operates in maximum power in reverse,
which releases threaded fasteners from workpiece with ease. Choose the correct speed
level needed on workpiece when mounting or releasing threaded fasteners by
understanding the reference torque listed below.
ASSEMBLY
Air Inlet
Forward/Reverse
Switch
Anvil
Trigger
Adjustable Torque Settings:
Setting Torque in Forward Torque in Reverse
1 0 - 295 ft/lbs (+/-10%)
2 0 - 450 ft/lbs (+/-10%) 0 - 1010 ft/lbs (+/-10%)
3 0 - 885 ft/lbs (+/-10%)
NOTE: Make sure that this tool has the correct torque to tighten/release threaded fasteners. The
torque applied to threaded fasteners can be found in their instructions or manuals. Overtightening
of your fasteners will strip threads or break bolts resulting in costly or time consuming repairs.
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INSUFFICIENT POWER:
Probable Cause Solution
Dirty or clogged air passages......... Flush and lubricate tool, drain air tank and supply line
Insufficient air supply...................... Increase line pressure, Make sure compressor
matches tool's air pressure and consumption needs
Air leakage...................................... Use PTFE tape at all fittings and joints. Check tool for
worn or damaged O-rings & seals.
Worn/damaged wear & tear parts .. Replace as necessary.
Tool matching ................................. Be sure you are using a tool suited for the torque
requirements of the job at hand.
TROUBLESHOOTING
CARE & MAINTENANCE
An in-line oiler is recommended to be installed on air supply line as it increases tool life
and keeps the tool in sustained operation. The in-line oiler should be regularly checked
and lled with air-tool oil. Proper adjustment of the in-line oiler is performed by placing a
sheet of paper next to the tool's exhaust ports and holding the throttle open approximately
30 seconds. The in-line oiler is properly set when a light stain of oil collects on
the paper. Excessive amounts of oil should be avoided.
In the event that it becomes necessary to store the tool for an extended period of time, 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.
Recommended lubricants: use air-tool oil or any other high-grade turbine oil containing moisture
absorbent, rust inhibitors, metal wetting agents and an EP (extreme pressure) additive.
Clean the tool all over with a cotton rag after each use. Keep the tool in a dry and safe
place out of reach of children.
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PARTS LIST AIR IMPACT WRENCH SAFETY
1. Use only clean, dry, regulated compressed air as the power source.
2. Air compressors used with the tool must comply with the appropriate European
Community Safety Directives.
3. Make sure that the air compressor being used for the tool operation supplies the
correct output (CFM).
4. Have the tool in "off" position when connecting the tool to the air supply.
5. Use normal 90psi working pressure for the tool. High pressure and unclean air will
shorten the tool life due to the faster wear and also may create a safety hazard.
6. Drain water from the air compressor tank daily, as well as any condensation in the air
lines. Water in the air line may enter the tool and cause damage to the tool mechanisms
at operation.
7. Clean the tool air inlet screen filter for blockage weekly. Clean if necessary.
8. Usually a 3/8" (inner diameter) air hose is recommended for air supply and airflow to
get the optimum performance of tool.
9. A long air hose (usually over 8 meters) may cause up to 15psi drop in pressure, so
you need to set the output pressure of the air compressor higher to maintain the
required working pressure at the tool.
10. Use proper hoses and fittings. We do not suggest connecting quick change couplings
directly to the tool since they may cause failure due to tool vibration at operation.
Instead, add a lead hose and connect coupling between air supply and hose whip.
11. Check hoses for wear before each use. Make certain that all connections are in security.
AIR SOURCE
1. Always use the impact wrench in the manner and for the functions described in this manual.
2. Always ensure the wrench is not moving and disconnected from the air supply when
changing sockets etc. Only use impact sockets. Do not use standard sockets.
3. Always finish tightening wheel nuts or engine parts with a torque wrench or suitable
spanner to the correct torque as recommended by the vehicle manufacturer.
4. Always avoid excessive use of the impact wrench. When tightening a nut or bolt,
never allow the wrench to impact more than 8 times. This is to avoid over-tightening. 3
to 4 impacts is normally sufficient.
5. Always ensure that the socket is correctly installed onto the tool anvil before starting the tool.
6. Due to the possible presence of asbestos dust from brake linings, always wear suitable
respiratory protection.
7. Never carry the impact wrench by the air supply hose.
8. Always disconnect the tool from the air supply when changing impact sockets or when
the wrench is not required for immediate use in order to avoid accidental start.
9. Hold the tool correctly. Always use both hands to control the impact wrench.
10. Always ensure that the wrench has come to a complete stop before putting it down
after use.
11. If necessary, use clamps or proper devices to securely fix the workpiece when
installing/tightening or removing/loosening threaded fasteners on the workpiece.
12. For overhead work, wear a safety helmet.
13. Do not discard the safety instructions, give them to the operator.
14. Always store this product in a dry and safe place out of reach of children or untrained
operators.
WARNING: Repetitive motions or exposure to vibration may be harmful to your hands and arms.
WARNING: The warnings, cautions, and instructions discussed in this instruction manual
cannot cover all possible conditions and situations that may occur. It must be understood by the
operator that common sense and caution are factors which cannot be built into this product, but
must be supplied by the operator. Read and understand all of the instructions provided in the
instruction manual of this product, as well as, any other tool (s) used with this product.
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