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Wen 4280 Manual
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Wen 4280 Manual

8-inch variable speed bench grinder
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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.
8-INCH VARIABLE SPEED
IMPORTANT:
NEED HELP? CONTACT US!
Have product questions? Need technical support?
Please feel free to contact us at:
800-232-1195
techsupport@wenproducts.com
WENPRODUCTS.COM
BENCH GRINDER
(M-F 8AM-5PM CST)
Model # 4280
bit.ly/wenvideo

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Summary of Contents for Wen 4280

  • Page 1 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.

  • Page 2: Table Of Contents

    Know Your Bench Grinder Assembly Operation Maintenance Troubleshooting Exploded View and Parts List Warranty TECHNICAL DATA Model Number: 4280 120V, 60 Hz, 5A Motor: 2000 to 3400 RPM Wheel Speed: 8 inches x 1 inch Grinding Wheel Size: Arbor Size: 5/8 inch...

  • Page 3: General Safety Rules

    GENERAL SAFETY RULES Safety is a combination of common sense, staying alert and knowing how your item works. SAVE THESE SAFE- TY INSTRUCTIONS. WARNING: To avoid mistakes and serious injury, do not plug in your tool until the following steps have been read and understood.
  • Page 4 GENERAL SAFETY RULES 15. DO NOT OVERREACH. Keep proper footing and balance at all times. Wear oil-resistant rubber-soled foot- wear. Keep the floor clear of oil, scrap, and other debris. 16. MAINTAIN TOOLS PROPERLY. ALWAYS keep tools clean and in good working order. Follow instruc- tions for lubricating and changing accessories.
  • Page 5 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 ex- ample: pipes, radiators, ranges, refrigerator enclosures. 13.

  • Page 6: Electrical Information

    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.
  • Page 7 KNOW YOUR SHARPENER 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 UNPACKING WARNING: To avoid injury from accidental startups, turn switch OFF and remove the plug from the...

  • Page 8: Assembly

    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.
  • Page 9 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.

  • Page 10: Maintenance

    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.
  • Page 11 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 condi- tions can be remedied with a dressing tool (included), new wheels sometimes require dressing to make them round. 5.

  • Page 12: Troubleshooting

    MAINTENANCE USING A WIRE OR BUFFING WHEEL A wire or buffing wheel can be installed onto the left 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.

  • Page 13: Exploded View And Parts List

    EXPLODED VIEW AND PARTS LIST No. Part Number Description Qty. No. Part Number Description Qty. 4280-001 Coolant Tray 4280-040 Screw (M2.5X6) 4280-002 Circuit Board 4280-041 Sensor 4280-003 Screw (ST2.9x5) 4280-042 Bushing 4280-004 Circuit Board Cover 4280-043 Nut (M5) 4280-005 Screw Assembly (M4X8)
  • Page 14 EXPLODED VIEW AND PARTS LIST...
  • Page 15 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 con- sumer power tools will be free from defects in material or workmanship for a period of two (2) years from date of purchase.
  • Page 16 Thanks for remembering...