8 Inch Variable Speed Benchtop Grinder Owner’s Manual WARNING: Read carefully and understand all ASSEMBLY AND OPERATION INSTRUCTIONS before operating. Failure to follow the safety rules and other basic safety precautions may result in serious personal injury.
® Thank you very much for choosing an Ironton product! For future reference, please complete the owner’s record below: Serial Number/Lot Date Code: ________________________________ Purchase Date: ____________________________________________ Save the receipt, warranty, and this manual. It is important that you read the entire manual to become familiar with this product before you begin using it. This benchtop grinder is designed for certain applications only.
Table of Contents Intended Use .......................................................................................................................................... 4 Packaging Contents .............................................................................................................................. 4 Technical Specifications ...................................................................................................................... 4 Important Safety Information .................
Intended Use The Ironton 8 Inch Variable Speed Benchtop Grinder is designed for general metal grinding and sharpening. It’s powered by a 3/4 HP, 120V motor operating at 2000 - 3400 RPM. The grinder comes with one aluminum oxide wheel and one wire wheel, each with an adjustable tool rest with eye shields for safety.
⚠WARNING WORK AREA SAFETY Inspect the work area before each use. Keep work area clean, dry, free of clutter, and well-lit. Cluttered, wet, or dark work areas can result in injury. Using the product in confined work areas may put you dangerously close to cutting tools and rotating parts. Do not use the product where there is a risk of causing a fire or an explosion; e.g., in the presence of flammable liquids, gases, or dust.
Check for damaged parts before each use. Carefully check that the product will operate properly and perform its intended function. Replace damaged or worn parts immediately. Never operate the product with a damaged part. Do not use a product with a malfunctioning switch. Any power tool that cannot be controlled with the power switch is dangerous and must be repaired by an authorized service representative before using.
Grounding ⚠WARNING This machine must be grounded while in use to protect the operator from electrical shock. This unit is equipped with an electrical cord that has an equipment grounding conductor and a grounding plug. The plug MUST be plugged into a matching receptacle that is properly installed and grounded in accordance with ALL local codes and ordinances. DO NOT MODIFY THE PROVIDED PLUG. If it will not fit the receptacle, have the proper receptacle installed by a qualified electrician.
draw. An undersized cord will cause a drop in line voltage, resulting in loss of power and cause overheating. Be sure your extension cord is properly wired and in good condition. Always replace a damaged extension cord or have it repaired by a qualified person before using it. Protect your extension cords from sharp objects, excessive heat and damp or wet areas. Grounded tools require a 3-wire extension cord. Double Insulated tools can use either a 2- or 3wire extension cord.
Main Parts of Benchtop Grinder Reference A B C D E F G H I J K L Subassembly Left Eye Shield Assembly 8’’ Grinding Wheel 60 Grit Tool Rest Support Tool Rest Adjustment Knobs Variable Speed Dial On/Off Switch Quench Tray Mounting Hole 8’’ Wire Wheel Wheel Cover Gooseneck Lamp Right Eye Shield Assembly Page 9 of 22
Assembly Instructions ⚠WARNING Remove the benchtop grinder from the carton and examine it carefully. Do not dispose of carton or any packaging material until all parts are examined. To avoid injury, ALWAYS turn the tool off and disconnect the grinder from the power outlet before installing or changing the grinding wheel. Always make sure your benchtop grinder is securely mounted to a workbench. Failure to do so could result in an accident or possibly serious personal injury.
Installing the Spark Guards and Eye Shield Brackets 1. Assemble the spark arrestors (A) to the front surface of the wheel covers (B) with the flat washers and pan head screws (C) as shown. 2. Adjust each Spark Arrestor until the lower edge (D) is 1/16'' from the grinding wheel. Firmly tighten the hex head screws. Installing the Eye Shields Note: There is a left and a right eye shield. 1.
Mounting the Grinder to the Workbench Before attempting to use this grinder, it must be properly mounted to a workbench or grinding stand. Note: Bench grinders vibrate. Grinder movement during high-speed rotation may cause injury to the operator or damage to the workpiece. Mount the grinder securely to a sturdy workbench or grinding stand. 1. Position the grinder on the workbench. Mark the workbench through the two mounting holes located in the grinder base (see illustration below). 2.
Tool Rest Adjustment 1. Adjust the tool rest to the desired grinding angle. Keep the tool rest approximately 1/16” away from the surface of the grinding wheel in order to provide appropriate workpiece support. Shield Adjustment 1. Place the workpiece on the tool rest and fold down the eye shield. Ensure that there is adequate clearance for the workpiece and clear line of sight for operation through the shield.
1. Turn on the benchtop grinder. Allow it to come up to a steady speed for at least one minute. Rotate the variable speed switch clockwise to increase the benchtop grinder to the desired speed. 2. Bring the workpiece up to the wheel, gently and without jarring. Use the tool rest to steadily move the workpiece over the wheel. 3. Keep the workpiece moving across the face of the wheel so that the grinding wheel wears evenly from side to side. Note: The workpiece will quickly become heated.
Maintenance ⚠WARNING Disconnect power from tool and place the switch in the locked or off position before servicing, adjusting, installing accessories or attachments, or storing. Use only accessories that are recommended by the manufacturer for your model. Use only soap and a damp cloth to clean your tools. Many household cleaners are harmful to plastics and other insulation. Never let liquid get inside a tool.
Troubleshooting Use the table below to troubleshoot problems before contacting service personnel or your local dealer. If the problem continues after troubleshooting, call your local dealer for assistance. Failure Motor will not start. Motor will not start because fuses or circuit breakers are tripping or blowing. Motor overheats. Motor stalls (resulting in blown fuses or tripped circuit). Unit slows when operating. Wavy condition on surface of workpiece. Lines on surface of workpiece.
Failure Wheel dulls quickly or grit falls off. Wheel clogs and workpiece shows burn marks. Possible Cause Corrective Action Coolant required. Add coolant. Feed rate is too aggressive. Decrease feed rate of workpiece into grinding wheel. Wheel is soft. Select a grinding wheel with a harder bond of material. Bad wheel dressing. Dress the wheel. Defective wheel bonding. DO NOT USE. Wheel is too hard. Select a grinding wheel with a softer bond of material. Feed rate is too slow.
Parts Diagram Page 18 of 22
Parts List Reference 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 Part Description Phillips Screw with Flat Washer M4X6 Coolant Tray Coolant Tray Plate Circuit Board Phillips Screw ST2.
Reference 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 Part Description Lock Nut M5 Phillips Screw with Spring & Flat Washers Eye Shield Mounting Rod Eye Shield Eye Shield Plate Phillips Screw M4x12 Right Spark Guard Dome Screw M6x12 Phillips Screw with Spring Washer M5X10 Right Inner Guard Cover Right Tool Rest Support Bracket Right Tool Rest Hex Nut M16 Left Thread Locking Knob M6x17 Locking Nut M6 Left Guard Cover Left Inner Guard Cover 8” G
Limited Warranty Northern Tool and Equipment Company, Inc. ("We'' or ''Us'') warrants to the original purchaser only (''You'' or ''Your'') that the Ironton product purchased will be free from material defects in both materials and workmanship, normal wear and tear excepted, for a period of one year from date of purchase. The foregoing warranty is valid only if the installation and use of the product is strictly in accordance with product instructions.
Distributed by: Northern Tool & Equipment Company, Inc. Burnsville, Minnesota 55306 www.northerntool.
