8-INCH VARIABLE SPEED BENCH GRINDER Model # 4280 bit.ly/wenvideo IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability, ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged, trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use your tool properly and for intended purpose, you will enjoy years of safe, reliable service.
TABLE OF CONTENTS 2 3 4 6 7 8 9 10 12 13 15 Technical Data General Safety Rules Specific Safety Rules For Bench Grinder Electrical Information Know Your Bench Grinder Assembly Operation Maintenance Troubleshooting Exploded View and Parts List Warranty TECHNICAL DATA Model Number: Motor: Wheel Speed: Grinding Wheel Size: Arbor Size: Wheel Grits: Net Weight: Product Dimensions: 2 4280 120V, 60 Hz, 5A 2000 to 3400 RPM 8 inches x 1 inch 5/8 inch #36 and #80 41 pounds 17 x 18.
GENERAL SAFETY RULES Safety is a combination of common sense, staying alert and knowing how your item works. SAVE THESE SAFETY INSTRUCTIONS. WARNING: To avoid mistakes and serious injury, do not plug in your tool until the following steps have been read and understood. 1. READ and become familiar with this entire instruction manual. LEARN the tool’s applications, limitations, and possible hazards. 2. AVOID DANGEROUS CONDITIONS. Do not use power tools in wet or damp areas or expose them to rain.
GENERAL SAFETY RULES 15. DO NOT OVERREACH. Keep proper footing and balance at all times. Wear oil-resistant rubber-soled footwear. Keep the floor clear of oil, scrap, and other debris. 16. MAINTAIN TOOLS PROPERLY. ALWAYS keep tools clean and in good working order. Follow instructions for lubricating and changing accessories. 17. CHECK FOR DAMAGED PARTS. Check for alignment of moving parts, jamming, breakage, improper mounting, or any other conditions that may affect the tool’s operation.
SPECIFIC RULES FOR THE BENCH GRINDER 11. USE ONLY GRINDING WHEELS that comply with ANSI B7.1 and are rated greater than 3550 RPM. 12. GUARD AGAINST ELECTRICAL SHOCK by preventing body contact with grounded surfaces. For example: pipes, radiators, ranges, refrigerator enclosures. 13. DO NOT use wheels with incorrect size holes. NEVER use wheel washers or wheel screws that are defective or incorrect, and NEVER touch a grinding wheel or other moving parts. 14.
ELECTRICAL INFORMATION GROUNDING INSTRUCTIONS IN THE EVENT OF A MALFUNCTION OR BREAKDOWN, grounding provides the path of least resistance for an electric current and reduces the risk of electric shock. This tool is equipped with an electric cord that has an equipment grounding conductor and a grounding plug. The plug MUST be plugged into a matching outlet that is properly installed and grounded in accordance with ALL local codes and ordinances. DO NOT MODIFY THE PLUG PROVIDED.
KNOW YOUR SHARPENER D C B KNOW YOUR GRINDER A - Grinding Wheel B - Eye Shield C - Wheel Dresser D - Work Lamp E - Drill Bit Sharpening Rest F - Power Switch G - Quenching Pot H - Variable Speed Knob I - Regular Tool Rest B A I E H F G UNPACKING WARNING: To avoid injury from accidental startups, turn switch OFF and remove the plug from the power source outlet before making any adjustments. Carefully unpack the sharpener and all its parts, and compare against the list below.
ASSEMBLY TOOL RESTS Two different tool rests are included with this bench grinder. To install these tool rests: 1. Attach the tool rest support (Fig. A - 1) to the inside surface of the wheel cover using a flat washer (Fig. A - 2) and a hex head screw (Fig. A - 3). 4 6 5 2. Attach the tool rest (Fig. A - 4) to the tool rest support (Fig A - 1) using a flat washer (Fig. A - 5) and an adjustment knob (Fig. A - 6). 1 3.
ASSEMBLY WORKLIGHT The bench grinder provided has a flexible work light to maximize visibility during operation. A light bulb for the flexible work light is not included. Use a 120 Volt, 40 watt or less track light bult (type R20, medium base) for the onboard lamp. Make sure the bulb does not protrude past the rim of the light’s housing. The flexible work light can be positioned in whatever direction you choose. Using the switch located on the top of the housing will turn the light on and off.
OPERATION SHARPENING GUIDE: SCISSORS If possible, take the scissors apart to make the sharpening operation easier and safer. Remove material only from the outside surface and work from the heavy end of the blade toward the tip. KNIVES Remove metal from both faces of most knives, working from the heavy end of the blade toward the tip. SCREWDRIVERS The end of a properly sharpened screwdriver will be a perfectly flat rectangle, perpendicular to the center line of the shank.
MAINTENANCE 4. In normal use, grinding wheels may become cracked, grooved, rounded at the edges, chipped, out of true or loaded with foreign material. Cracked wheels should be replaced IMMEDIATELY. While any of the other conditions can be remedied with a dressing tool (included), new wheels sometimes require dressing to make them round. 5. If you must replace a wheel be sure to obtain one with a safe rated speed at least as high as the “NO LOAD” RPM marked on your grinder’s nameplate.
MAINTENANCE USING A WIRE OR BUFFING WHEEL A wire or buffing wheel can be installed onto either side of the grinder as needed. More spacers are required for these types of grinding wheels, depending on the wheel’s thickness. NOTE: The first spacer should always go onto the arbor shaft, between the innermost wheel flange and the body of the grinder. If needed, a second spacer should go between the outermost wheel flange and the arbor hex nut.
EXPLODED VIEW AND PARTS LIST No. Part Number Description Qty. No. Part Number Description Qty. 1 4280-001 Coolant Tray 1 41 4280-041 Sensor 1 2 4280-002 Circuit Board 1 42 4280-042 Bushing 3 3 4280-003 Screw (ST2.
EXPLODED VIEW AND PARTS LIST 14
LIMITED TWO YEAR WARRANTY WEN Products is committed to building tools that are dependable for years. Our warranties are consistent with this commitment and our dedication to quality. LIMITED WARRANTY OF WEN CONSUMER POWER TOOLS PRODUCTS FOR HOME USE GREAT LAKES TECHNOLOGIES, LLC (“Seller”) warrants to the original purchaser only, that all WEN consumer power tools will be free from defects in material or workmanship for a period of two (2) years from date of purchase.
Thanks for remembering
