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INSTRUCTION MANUAL
IMPACT WRENCH
054-1216-4

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Summary of Contents for MasterCraft 054-1216-4

  • Page 1 INSTRUCTION MANUAL IMPACT WRENCH 054-1216-4...
  • Page 2 This symbol designates that this tool is listed by with both Canadian and 61TN U.S. requirements by Underwriters Laboratories. E213739 JD2177U IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 3 WEAR A DUST MASK THAT IS DESIGNED TO BE USED WHEN OPERATING A POWER TOOL IN A DUSTY ENVIRONMENT. SAVE THESE INSTRUCTIONS FOR REFERENCE IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 4: Electrical Safety

    Carrying power tools with your finger on the switch or energizing power tools that have the switch on invites accidents. SAVE THESE INSTRUCTIONS FOR REFERENCE SAVE THESE INSTRUCTIONS FOR REFERENCE IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 5: Specific Safety Rules

    Never use the impact wrench as a torque wrench. Always use a torque wrench to adjust the fastener to operations different from those intended could result in a hazardous situation. the specified torque. SAVE THESE INSTRUCTIONS FOR REFERENCE SAVE THESE INSTRUCTIONS FOR REFERENCE IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 6: Extension Cord Safety

    Running at lower voltage will damage the motor. MINIMUM GAUGE (AWG) EXTENSION CORDS (120 V use only) Amperage rating Total length More Not more 100' 150' than than (7.5 m) (15 m) (30 m) (45 m) Not Applicable IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 7 ……... Warning symbol ..Read all safety warnings and instructions ……. Wear your safety glasses ……... Wear hearing protection Description Description Air vents Forward/reverse button Handle 1/2” square drive Variable speed trigger switch IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 8: Installing Impact Sockets

    2 Pull outward on the large quick connect collar (1) (Fig. 2). Slide the adapter over the impact wrench 1/2” drive (2). When the adapter is fully on the 1/2” drive, release the collar. IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 9: Variable Speed Trigger Switch

    These accessories will not be adequately held in the hex drive and could come loose and NOTE: If the tool gets warm while running at slow possibly injure the operator. speeds, stop and allow it to cool. IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 10: Removing Fasteners

    Owner’s Manual stress on the impact wrench and cause damage. It for your car are followed exactly. Failure to may also break the fastener. follow those safety instructions could result in serious injury or death. IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 11 NOTE: Make sure the brush cap threads are not cross-threaded. Do NOT over tighten. Repeat steps 1 to 4 and replace the second carbon brush located on the opposite side of the motor housing. IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 12 It will also void the warranty. Lubrication All of the bearings in this tool are lubricated with a sufficient amount of high-grade lubricant for the life of the unit under normal conditions. Therefore, no further lubrication is required. IMPACT WRENCH 054-1216-4 IMPACT WRENCH 054-1216-4...
  • Page 13 WARNING: When servicing, use only Mastercraft ® replacement parts. The use of any YEAR other parts may create a safety hazard or cause damage to the impact wrench. LIMITED WARRANTY † Any attempt to repair or replace electrical parts on this impact wrench may create a safety hazard unless DE GARANTIE LIMITÉE...
  • Page 14: Additional Limitations

    Mastercraft is a superior line of products selected for their workmanship and materials. These products are designed to meet rigorous quality and performance standards, and are approved by our Quality Assurance laboratory.

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