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Porter-Cable 7751 manual

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Table of contents for the manual

  • Page 1

    Instruction manual The Model and Serial No. plate is located on the main housing of the tool. Record these numbers in the spaces below and retain for future reference. Model No. ______________________________________ Type ___________________________________________ Serial No. _______________________________________ IMPORTANT Please make certain tha[...]

  • Page 2

    2 Read and understand all warnings and operating instructions before using any tool or equipment. When using tools or equipment, basic safety precautions should always be followed to reduce the risk of personal injury. Improper operation, maintenance or modification of tools or equipment could result in serious injury and property damage. There are[...]

  • Page 3

    3 Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known (to the State of California) to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: ● lead from lead-based paints ● crystalline silica from bricks and cement and other masonry pro[...]

  • Page 4

    4 Read all instructions. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury. The term "power tool" in all of the warnings listed below refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool. SAVE THESE INSTRUCTIONS 1) Work area safety a) Keep work a[...]

  • Page 5

    5 d) Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury. e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations. f) Dress properly. Do not wear loose [...]

  • Page 6

    6 ADDITIONAL SPECIFIC SAFETY RULES SAVE THESE INSTRUCTIONS! 1. Wear ear protectors with impact drills. Exposure to noise can cause hearing loss. 2. Use auxiliary handles supplied with the tool. Loss of control can cause personal injury. 3. Hold power tools by insulated gripping surfaces when performing an operation where the cutting tool may contac[...]

  • Page 7

    7 SYMBOL DEFINITION V ........................ volts A ........................ amperes Hz ........................ hertz W ........................ watts kW ........................ kilowatts F ........................ farads µ F ........................ microfarads l ........................ litres g ........................ grams kg ...........[...]

  • Page 8

    8 EXTENSION CORD SELECTION If an extension cord is used, make sure the conductor size is large enough to prevent excessive voltage drop which will cause loss of power and possible motor damage. A table of recommended extension cord sizes will be found in this section. This table is based on limiting line voltage drop to 5 volts (10 volts for 230 vo[...]

  • Page 9

    9 NOTE: This tool is shipped completely assembled. No assembly time or tools are required. FUNCTIONAL DESCRIPTION ASSEMBL Y FOREWORD Your Porter-Cable Hammer-Drill is designed to drill holes of various sizes in steel and concrete as indicated in the following chart: MODEL SPEED MATERIAL MAX. HOLE DIA. 7751 0-1000 rpm Steel 1 / 2 " Concrete 3 /[...]

  • Page 10

    10 OPERA TION Disconnect tool from power source! 1. Squeeze the trigger switch (A) Fig. 2 to start the motor. Release the trigger switch to stop the motor. For a slow speed, slightly squeeze the trigger switch. For the fastest speed, squeeze the trigger switch all the way. 2 . A lock button (C) Fig. 2 is provided to keep the motor running without h[...]

  • Page 11

    11 TWO SPEED GEAR SHIFT The Model 7751 Hammer-Drill has a two speed gear shift that provides a high speed of approximately 2500 RPM and a low speed of approximately 1000 rpm (with the trigger switch in “Full-On” position). For high speed operation, rotate the speed selecting knob (A) Fig. 4 clockwise aligning the “H” with the indicating mar[...]

  • Page 12

    12 3. Insert the clamping screw (D) through the clamping plate (C), and the auxiliary handle (B). Thread it into the nut (A). Do not tighten. 4. Slide the auxiliary handle assembly over the chuck and on the front of the gear case. 5. Locate the handle in the desired position and align the recesses in the handle to engage the bosses (F) Fig. 5 on th[...]

  • Page 13

    13 HOW TO USE THE HAMMER-DRILL 1. DRILLING CONCRETE – Use carbide-tipped masonry bits only. Be certain to securely grip the drill in the chuck and to place the mode- selecting knob in the “HAMMER” position. Adjust the depth gauge rod for your desired depth. Start the drill by squeezing the trigger. Place the tip of the bit in contact with the[...]

  • Page 14

    14 KEEP TOOL CLEAN Periodically blow out all air passages with dry compressed air. All plastic parts should be cleaned with a soft damp cloth. NEVER use solvents to clean plastic parts. They could possibly dissolve or otherwise damage the material. Wear ANSI Z87.1 safety glasses while using compressed air. F AILURE TO ST ART Should your tool fail t[...]

  • Page 15

    15 A complete line of accessories is available from your Porter-Cable • Delta Supplier, Porter-Cable • Delta Factory Service Centers, and Porter-Cable Authorized Service Stations. Please visit our Web Site www.porter-cable.com for a catalog or for the name of your nearest supplier. Since accessories other than those offered by Porter-Cable • [...]

  • Page 16

    16 PORTER-CABLE LIMITED ONE YEAR WARRANTY Porter-Cable warrants its Professional Power Tools for a period of one year from the date of original purchase. We will repair or replace at our option, any part or parts of the product and accessories covered under this warranty which, after examination, proves to be defective in workmanship or material du[...]

  • Page 17

    The following are trademarks of PORTER-CABLE • DELTA (Las siguientes son marcas registradas de PORTER-CABLE • DELTA S.A.) (Les marques suivantes sont des marques de fabriquant de la PORTER-CABLE • DELTA): Auto-Set ® , BAMMER ® , B.O.S.S. ® , Builder’s Saw ® , Contractor’s Saw ® , Contractor’s Saw II™, Delta ® , DELTACRAFT ® , D[...]