ension Gord Double insulated tools have 2-wire cords and can be used with 2-wire or 3- wire extension cords. Tools that have 3-wire cords requiring grounding must only be used with extension cords that have 3-prong grounding type plugs and 3-pole receptacles. Make sure which construction your tool is before choosing an extension cord. Only round jacketed extension cords should be used, and we recommend that they be listed by Underwriters Laboratories (U.L.) (C.S.A. in Canada). If the extension will be used outside, the cord must be suitable for outdoor use. Any cord marked as outdoor can also be used for indoor work. The letters “WA” on the cord jacket indicate that the cord is suitable for outdoor use. | An extension cord must have adequate wire size (AWG or American Wire Е Gauge) for safety, and to prevent loss of power and overheating. The smaller the gauge number of the wire, the greater the capacity of the cable, that is 16 gauge has more capacity than 18 gauge. When using more than one extension to make up the total length, be sure each individual extension contains at least | the minimum wire size. BE To determine the minimum wire size required, refer to the chart below. CHART FOR MINIMUM WIRE SIZE (AWG) OF EXTENSION CORDS NAMEPLATE TOTAL EXTENSION CORD LENGTH-FEET RATING-AMPS 50 75 100 125 150 175 200 © 0-100 18. 16 - 16 14 12 12 10.1- 13.0. 14 14 14 12 a 13.1 - 15.0 14 12 12 12 — Before using an extension cord, inspect it for loose or exposed wires, damaged insulation, and defective fittings: Make any needed repairs or replace the cord if necessary. Black & Decker has extension cords available that are U.L. (C.S.A. in Canada) listed for outdoor use. | To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment should be performed by BLACK & DECKER Service Centers or other qualified service organizations, always using BLACK & DECKER replacement parts. | E. | | | Warranty a Black & Decker (U.S.) Inc. warrants this product for one year from date of purchase. We will repair without charge, any defects due to faulty material or workmanship. Please return the complete unit, transportation prepaid, to any | В Like most Black & Decker products your tool is listed by Underwriters Laboratories to ensure that it meets stringent safety requirements. This symbol on the na is listed by Underwri a ories, Inc. meplate means the product See Tools-Electric' —Yellow Pages— for Service á Sales | Form No. 741333 | (NOV88-CD-4) ©1988 Black & Decker Printed in U.S.A. BLACK & DECKER (U.S.) INC., U.S. Power Tools Group, 10 North Park Drive, P.O. 798, Hunt Valley, MD 21030-0798 U.S.A. A ANDAN LANCZO Ll ANTE l ANTOA/RAAUO/AOGE - + e. A Instruction Manual 7" & 9" Right Angle Sanders & Grinder Thanks for Selecting a Black & Decker Angle Sander/ Grinder. Your new angle sander/ grinder is with Black & Decker's commitment to quality, your tool will deliver the kind of rugged dependability for which Black & Decker is famous the world over. You can sand, wire brush and, with the proper guarding, grind on steel, concrete, aluminum and any other building material you can name. designed for you, the industrial user. Built Please take a few mi inutes and read this informative instruction manual. The | “more you know about your : sander/grinder the better you'll be able | to take advantage of its many uses. Pay particular attention to the safety rules we've provided for your protection. Don't forget to send in your owner's registration card. THANKS AGAIN FOR BUYING BLACK & DECKER! 4 BLACKS. DECKER, Accessories See your local Black & Decker dealer for a wide array of accessories. Accessory Type Notes Usages USE GUARD SUPPLIED 18 *DEPRESSED CENTER | WITH TOOL OR GUARDS masonry moderate mee! Lor IN CHART WHEELS al | ~ contoured surfaces. | Use for smoothing welds, SANDING DISCS and sharp edges, and | | automotive body work. WIRE BRUSHES 1 MAX 4" KNOTTED WHEEL Use for J ust removal and MAX..2 3/4" CUP WHEEL surtace preparation before painting. *Depressed Center Grinding Wheels must fit within the confines of the guard and must be rated higher than the recommended speed as marked on the nameplate. By installing the proper guards you can convert any sander in this manual to an angle grinder with which you can use depressed center grinding wheels and flaring cup wheels. DO NOT ATTEMPT TO GRIND WITH ANY TOOL UNLESS IT IS FIRST EQUIPPED WITH THE PROPER GUARD. TO OBTAIN THE PROPER GUARD REFER TO THE CHART BELOW. ool Catalog No. Guard Kit No. Wheels Used With Guard 4049, 4052, 4075, 4076, 6112 40497 All Black & Decker 7 inch Depressed Center Wheels. 1 4049,4075, 6112 40496 All Black & Decker 9 inch Depressed Center Wheels. CAUTION: 9 inch Depressed Center Wheels cannot be used on the 4076 Angle Sander. | 4049, 4052, 4075, 4076, 6112 38517 All Black & Decker 4 inch | Flaring Cup Wheels. 4049, 4052, 4075, 4076 ‚6112 38518 All Black & Decker 5 inch я Flaring Cup Wheels. 4049, 4052, 4075, 6112 38519 All Black & Decker 6 inch | | Flaring Cup Wheels. WARNING —To reduce the risk of injury, always use proper guards when grinding and wear eye protect ion. The accessories listed in this manual are available at extra cost from your local dealer or Black & Decker Service Center. A complete listing of service centers is included on the owner's registration card packed with your tool. If you need assistance in locating any accessory, please contact: Black & Decker (U.S.) Inc User Services Department 626 Hanover Pike P.O. Box 618 Hampstead, MD 21074-0618. 6 à Grinding With Depressed Center Wheels (Fig. 5) Depressed center wheels may be used for moderate.metal removal on flat or contoured surfaces. . CAUTION: Never use Depressed Center Wheels without the proper guard. - To install Depressed Center Wheels: | 1. Be sure tool i is disconnected from power supply and switéh is in “OFF” position. 2. Be sure the guard assembly i is securely attached to the spindle housing. 3. Put the backing flange onto the tool spindle as shown. 4. Check rated speed on depressed - center wheel. Never use wheel with | rated speed lower that the speed on the nameplate of the tool. 5. Place the Depressed Center Wheel | “onthe tool spindle as shown. _ 6. Thread the Clamp Washer on tool ~ spindle as shown. Hold the tool - spindle by engaging the Spindle “Lock Pin, and tighten Clamp Washer with Spanner Wrench. When using a Depressed Center Wheel, hold the tool so that an angle of approximately 30° exists between | — the wheel and the work. Wire Cup and Knotted Wire 1. Disconnect tool from | power : source. - Rest Grinder on its back with © spindle facing up. 2. Ensure that the rated speed of the wire brush is equal to or higher than the rated speed of the grinder found onthe nameplate. 3. Thread brush onto spindle and tighten. 4. Common applications for knotted wire cup brush include cleaning welds, angles, corners and paint removal. 5. Usage of the knotted wire wheel brush is the same as the wire cup brush. They can also be used to finish irregular surfaces and corners. | Maintenance of Tool Cleaning Blowing dust and grit out of the motor housing using compressed air is a necessary regular maintenance procedure. Dust and grit containing particles from metal grinding often accumulate on interior surfaces and - could create an electrical shock hazard if not frequently cleaned out. ALWAYS WEAR SAFETY GLASSES. | CAUTION: NeVer úse vents | or other harsh chemicals for cleaning the non-metallic parts of the tool. Use clean, dry rag only. Lubrication B&D tools are properly lubricated | atthe factory and are ready for use. “ Tools should be relubricated regularly every sixty days to six months, depending on usage. (Tools used constantly on production for heavy- duty jobs and tools exposed to heat may require more frequent lubrication.) This lubrication should only be attempted by trained power tool repairpersons such as those at B&D Service Centers or in other qualified service organizations. Your tool is equipped with the Black & Decker brush checkpoint system. When the brushes become worn out, the tool will automatically | stop a and prevent biie to the centers or other qua lified service organizations. ( co > Ne oa wp 11. 12. 13. 14. D 15. 16. 17. 18. 19. 20. Important Safety Instructions (For All Tools) ~ WARNING: When using Electric Tools, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and personal injury, including the following: READ ALL INSTRUCTIONS . KEEP WORK AREA CLEAN. Cluttered areas and benches invi ite | injuries. . CONSIDER WORK AREA ENVIRONMENT. Don't expose power tools to rain. Don't use power tools in damp or wet locations. Keep work area well lit. . GUARD AGAINST ELECTRIC SHOCK. Prevent body contact with grounded surfaces. For example: pipes, radiators, ranges, refrigerator enclosures. KEEP CHILDREN AWAY. All visitors should be kept away from work area. Do not let vis itors contact tool or extension cord. . STORE IDLE TOOLS. When not in use, tools should be stored in dry, and high or locked- -up place—out of reach of chi laren. DON'T FORCE TOOL. It will do the job better and safer at the rate for which it was intended. USE RIGHT TOOL. Don't force small tool or attachment to do the job of a heavy-duty tool. Don't use tool for purpose not intended, for example, don't use circular saw for cutting tree limbs or logs. . DRESS PROPERLY. Do not wear loose clothing or jewelry. They can be caught in moving parts. Rubber gloves and non- -skid footwear are recommended when working outdoors. Wear protective — hair covering to contain long hair. . USE SAFETY GLASSES. Also use face or dustmask if cutting operation is dusty. 10. DON'T ABUSE CORD. Never carry tool by cord or yank it to disconnect from receptacle. Keep cord from heat, oil, and sharp edges. SECURE WORK. Use clamps or a vise to hold work. It's safer than using your hand and it frees both hands to operate tool. | DON'T OVERREACH. Keep proper footing and balance at all times. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for better and safe performance. Follow instructions for lubricating and changing accessories. Inspect tool cords periodically and if damaged have repaired by authorized service facility. Inspect extension cords periodically and replace if damaged. Keep handles dry, clean, and free from oil and grease. DISCONNECT TOOLS. When not in use, before servicing, and when changing accessories, such as blades, bits, cutters. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to see that keys and adjusting wrenches are removed from tool before turning it on. AVOID UNINTENTIONAL STARTI ING. Don't carry plugged-in tool with finger on switch. Be sure switch is off when plugging in OUTDOOR USE EXTENSION CORDS. When tool is used outdoors, use only extension cords intended. for use outdoors and so marked. More detailed information can be found on page 8. STAY ALERT. Watch what you are doing. Use common sense. ‘Do not operate tool when you are tired. CHECK DAMAGED PARTS. Before further use of the tool, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, binding of moving parts, breakage of parts, mounting, and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced by an authorized service center unless otherwise indicated elsewhere in this instruction manual. Have defective switches replaced by authorized service center. Do not use tool if switch does not turn it on and off. DO NOT OPERATE portable electric tools near flammable liquids or in gaseous or explosive atmospheres. Motors in these tools normally spark, and the sparks might ignite fumes. SAVE THESE INSTRUCTIONS FOR FUTURE USE. | Safety Rules For Sanders and Grinders 1. Always wear safety goggles or other eye protection when using this tool. 2. When grinding, always keep guard in place. 3. Use only grinding wheels having a maximum operating speed at least as high as “NO LOAD RPM” marked on the tool's nameplate. This precaution also applies to any accessory on any tool. 4. Before using, inspect - recommended accessory for cracks or flaws. If such a crack or flaw is evident—discard the — accessory! The accessory should also be inspected whenever you think the tool may have been dropped. | 5. When starting the tool (with: a new or replacement wheel installed) hold the tool in a well protected - area and let it run for one minute. if ‘the wheel has an undetected crack or flaw, it should burst in less than one minute. Never start the tool with a person in line with the wheel. This includes the operator... = 6. In operation, avoid bouncing the wheel or giving it rough treatment. if this occurs, stop the tool and inspect the wheel. 7. Always use guards with depressed- center or flaring cup grinding wheels. 8. Clean your tool out periodically following the procedure in the maintenance section. SAVE THESE INSTRUCTIONS Grounding | Cat. No. 4049/4052/ 4075/4076 FOR TOOLS EQUIPPED WITH 3-WIRE CORD & REQUIRE GROUNDING.PLEASE READ THE FOLLOWING: This tool should be grounded while in use to protect the operator from electric shock. The tool is equipped with an approved three- conductor cord and three prong grounding type plug to fit the proper grounding type receptacie. The green (or green and yellow) conductor in the - cord is the grounding wire. Never connect the green (or green and уе! low) wire to a live terminal. Your ‘unit is for use on less than 150 volts - and has a plug like that shown in Figure A. An adapter, Figures B and C, is available for connecting Figure A plugs to two-prong receptacies. The . green-colored rigid ear, lug, etc., must be connected to a permanent ground | such as a properly grounded outlet - box. ADAPTER SHOWN IN — — FIGURES 8 & C IS NOT FOR USE IN CANADA. GROUNDED GUTLET BOX LONGEST OF “> QUTLET BOX THE 3 PRONGS 1 ‘A. —B. C Double Insulation | (Cat. No.6112 & 4255) E DOUBLE-INSULATED tools are constructed throughout with TWO separate “layers” of electrical “insulation or one DOUBLE thickness ... ~ of insulation between you and the tool's electrical system. - — Tools built with this insulation system are not intended to be grounded. As a result, your tool is equipped with a two-prong plug which _ permits you to use extension cords witnout concern for maintaining a ground connection. See page 8 for additional extension cord information. NOTE: DOUBLE INSULATION | does not take the place of normal safety precautions when operating this tool. The insulation system is for added protection against injury resulting from a possible electrical insulation failure within the tool. CAUTION: When servicing all | tools; USE ONLY IDENTICAL REPLACEMENT PARTS. Repair or — replace damaged cords. A SPINDLE LOCK = PIN - SPINDLE LOCK PIN | Switch Operation (Fig. 1) To start the tool, depress the trigger by squeezing. To turn the tool _ off, release the trigger. The switch can * be locked on by engaging the lock button located near the trigger while holding the trigger depressed. Always | be sure that the tool is not locked on | before plugging it in. To turn the tool - off when it is locked on, squeeze and release the trigger once. TRIGGER SWITCH. SWITCH LOCK BUTTON "BRUSH INSPECTION CAP. - Auxiliary Handle (Fig. 2) An auxiliary handle is furnished . with your tool and can be screwed into either side of the front housing. This handle SHOULD BE USED AT ALL TIMES to maintain complete control of the tool. = A <) AN an. | ) \ SWITCH LOCK BUTTON BRUSH . | КРЕСТОМ TRIGGER SWITCH Sanding With - Abrasive Discs (Fig. 3) To install Sanding Discs: - Be sure that the tool is turned off and unplugged. Push the hub of the Disc Nut through the center of the Sanding Disc, as far as it will go, and also through the Backing Disc. Put the - assembled discs on the tool spindle * and engage the Disc Nut into the Disc - Nut Hub. Thread the assembly clockwise, completely down on the spindle. Engage the Spindle lock pin to : lock the spindle in place. - | NOTE: Examine the two figures — at the left. One of them will represent: your sander/grinder. Examine the one that most closely resembles your tool and find the SPINDLE LOCK PIN. When using an abrasive disc, hold the tool so that an angle of 10° to 15° exists between the disc and the work, as shown in Figure 4. If only the . ” : - outer edge of the sanding disc is used, a rough cut surface will result. If the sanding disc is pressed flat - ." | against the work the sanding action will be i requ ar and bumpy, and the | too! wil I be difficult to control. - Removing Disc Turn Off and Unplug Tool. Using a cloth or glove to protect your hand, turn the disc assembly counter-clockwise to remove it rom the tool spindle. Hold the spindle place by engaging the Spindle Lock Pin.