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Summary of Contents for Benchmark 1282-721
- Page 1 5 Year Limited Warranty READ ALL INSTRUCTIONS BEFORE FIRST USE. KEEP THIS MANUAL FOR FUTURE REFERENCE. KEEP AWAY FROM CHILDREN. WEAR EAR WEAR A WEAR CSA APPROVED EYE PROTECTION PROTECTION FACE MASK...
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Page 2: Product Specifications
PRODUCT SPECIFICATIONS 1/2" DRIVE PNEUMATIC IMPACT WRENCH Drive 1/2" (13MM) Max Drive speed 7,500 RPM Maximum Torque 740 ft. Lbs. Max PSI 120PSI Average Air Consumption 3.7 CFM @ 90PSI Working pressure 90 PSI Air inlet 1/4” NPT Recommended Hose 3/8”... -
Page 3: Table Of Contents
1282-721 1/2" PNEUMATIC IMPACT WRENCH TABLE OF CONTENTS Product Specifications ....................1 Table of Contents ....................... 2 Safety Guidelines ....................3-5 Symbols ........................6 Tool Specific Warnings ....................7 Know your 1/2" Drive pneumatic impact Wrench ..........8 Assembly and Operating ..................9-13 Maintenance ...................... -
Page 4: Safety Guidelines
SAFETY GUIDELINES WARNING: This manual contains information that relates to PROTECTING PERSONAL SAFETY and PREVENTING EQUIPMENT PROBLEMS. It is very important to read this manual carefully and understand it thoroughly before using the product. The symbols listed below are used to indicate this information. DANGER! Potential hazard that will result in serious injury or loss of life. - Page 5 1282-721 1/2" PNEUMATIC IMPACT WRENCH SYMBOL MEANING Do not use oxygen or any other combustible or bottled gas Oxygen to power air-powered tools. Failure to observe this warning can cause explosion and serious personal injury or death. nydrogen Use only the compressed air to power the air-powered tools.
- Page 6 DANGER! Keep children away from the work area. Do not allow children to handle power tools. Do not use this tool in the presence of flammable liquids or gases. Sparks that are created during use may ignite gases. Keep air hose away from heat, oil, and sharp edges. Check air hose for wear before each use and ensure that all connections are proper.
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Page 7: Symbols
1282-721 1/2" PNEUMATIC IMPACT WRENCH CAUTION! Disconnect tool from the air supply and turn off the compressor beforeperformingany maintenance orchanging accessories, when clearing a jammed fastener, when the tool is not in use, when it is being handed to another person, and when it is left unattended. -
Page 8: Tool Specific Warnings
TOOL SPECIFIC WARNINGS Avoid direct contact with accessory and work surface during and after • work as they become heated and sharp. Wear safety gloves to protect hands. Operators must be physically able to handle the bulk, weight, and power of •... -
Page 9: Know Your 1/2" Drive Pneumatic Impact Wrench
1282-721 1/2" PNEUMATIC IMPACT WRENCH KNOW YOUR 1/2" DRIVE PNEUMATIC IMPACT WRENCH No. Description No. Description 1 / 2 " Square drive head Trigger Air inlet plug Forward/reverse Switch Air deflector... -
Page 10: Assembly And Operating
ASSEMBLY AND OPERATING The 1/2" pneumatic impact wrench has a composite body to reduce strain. The wrench delivers up to 740 ft. lbs. of torque to get tough fastening jobs done fast. This impact wrench is designed for removing and installing bolts, e.g., automotive lug nuts on tires, and for general assembly work. - Page 11 1282-721 1/2" PNEUMATIC IMPACT WRENCH AIR SYSTEM Always use clean, dry, regulated, compressed air at 5.2 to 6.2 bar (75 to 90 PSI) Do not exceed the maximum or minimum pressures. Operating the tool at the wrong pressure (Too low or too high) will cause excessive noise or rapid wear of tool.
- Page 12 WARNING Keep hands and other parts of the body away from the work areas when connecting the tool to the air supply. Failure to comply could lead to serious injury or loss of life. It is recommended that a filter-regulator-lubricator is used and located as close to the tool as possible. If a filter-regulator-lubricator is not installed, place up to 6 drops of compressor oil into the NPT inlet plug before each use.
- Page 13 1282-721 1/2" PNEUMATIC IMPACT WRENCH Operation WARNING! Potential hazard that could result in serious injury or loss of life. • Use only the sockets specifically designed for this pneumatic Impact Wrench. Failure to comply to comply may result in moderate injury or damage to the tool.
- Page 14 After using the tool, disconnect the air hose (1) from the tool (2) Note: When repair the tool, use hex key to remove the screws if necessary. Storage If it is necessary to store the tool for an extended period of time, apply a generous amount of lubrication before storing.
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Page 15: Maintenance
1282-721 1/2" PNEUMATIC IMPACT WRENCH Maintenance NOTE: Do not store the tool anywhere temperatures will fall below freezing. DANGER! Disconnect the tool from the air compressor before maintenance/service, adjusting and when it is not in use. Repairs must be performed by a qualified service technician only. - Page 16 • Inspect the trigger, the spring, and the safety mechanism for free movement on a regular basis in order to ensure that the safety system is fully functional. • Verity that no part is loose or missing and that no part is stuck or jammed. •...
- Page 17 1282-721 1/2" PNEUMATIC IMPACT WRENCH Problem Possible causes Solutions Tool runs at 1. Dirt particles are 1. Check if there is blockage in the low speed. jammed in motor. air inlet and the filter. Air flows 2. Power regulator is in 2.
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Page 18: Exploded View
1282-721 1/2" PNEUMATIC IMPACT WRENCH EXPLODED VIEW... -
Page 19: Parts List
1282-721 1/2" PNEUMATIC IMPACT WRENCH PARTS LIST WARNING When servicing, use only original equipment replacement parts. The use of any other parts may create a safety hazard or cause damage to the tool. Any attempt to repair or replace electrical parts on this tool may create a safety hazard unless repairs are performed by a qualified technician. - Page 20 1282-721 1/2" PNEUMATIC IMPACT WRENCH Key# Part # PartName 1282-721-021 Pin 2.5 X 30 1282-721-032 Air Inlet Plug 1282-721-033 Switch Pin 1282-721-034 Compression spring 1282-721-035 Exhaustcover 1282-721-036 O-ring 20.3 X 2.3 1282-721-037 Washer 1282-721-038 O-ring 16 X 2.5 1282-721-039 Air Connector...
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Page 21: Warranty
WARRANTY BENCHMARK WARRANTY If this Benchmark tool fails due to a defect in material or workmanship within five years from the date of purchase, return it to any Home Hardware store with the original bill of sale for exchange. 3-year warranty for the battery and charger. This warranty does not include expendable parts including but not limited to blades, brushes, belts, light bulbs. - Page 22 5 Year Limited Warranty 1282-721 BENCHMARK TOOLS CANADA Made in China ST. JACOBS, ONTARIO N0B 2N0 © 2021 Home Hardware Stores Limited CUSTOMER SERVICE/TECH SUPPORT 1-866-349-8665 * This Benchmark product carries a five (5) year LIMITED warranty against defects in workmanship and materials. See Owner’s Manual for full details.
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