Ryobi AG451 Operator's Manual
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Ryobi AG451 Operator's Manual

4-1/2 in. (115 mm) angle grinder double insulated
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THANK YOU FOR BUYING A RYOBI ANGLE GRINDER.
Your new angle grinder has been engineered and manufactured to Ryobi's high standard for dependability, ease of operation,
and operator safety. Properly cared for, it will give you years of rugged, trouble-free performance.
CAUTION: Carefully read through this entire operator's manual before using your new angle grinder.
Pay close attention to the Rules for Safe Operation, Warnings, and Cautions. If you use your grinder properly and only for
what it is intended, you will enjoy years of safe, reliable service.
Please fill out and return the Warranty Registration Card so that we can be of future service to you.
Thank you again for buying Ryobi tools.
SAVE THIS MANUAL FOR FUTURE REFERENCE
OPERATOR'S MANUAL
4-1/2 in. (115 mm) Angle Grinder
Model AG451 /

SPECIFICATIONS:

Grinding Wheel Capacity
Rating
No Load Speed
Amperes
Net Weight
Double Insulated
4-1/2 in. (115 mm)
120 volts, 60Hz, AC only
11,000 RPM
5.5 Amperes
4.6 lbs. (2.1 kg.)

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Summary of Contents for Ryobi AG451

  • Page 1: Specifications

    THANK YOU FOR BUYING A RYOBI ANGLE GRINDER. Your new angle grinder has been engineered and manufactured to Ryobi's high standard for dependability, ease of operation, and operator safety. Properly cared for, it will give you years of rugged, trouble-free performance.

  • Page 2: Table Of Contents

    Always use the guard that accompanied the grinder. Comply with mounting and use instructions and warnings found in the manual for the grinder and ANSI B7.1. Failure to heed these warnings can result in wheel breakage and serious personal injury. For more information on ANSI Standards, contact the American National Standards Institute, Inc., 11 West 42nd Street, 13th Floor, New York, NY 10036.

  • Page 3: Double Insulation

    WARNING: WEAR YOUR The operation of any angle grinder can result in foreign objects being thrown into your eyes, SAFETY GLASSES which can result in severe eye damage. Before beginning power tool operation, always wear safety goggles or safety glasses with side shields and a full face shield when needed.

  • Page 4: Work Area

    RULES FOR SAFE OPERATION WARNING: Read and understand all instructions. Failure to follow all instructions listed below, may result in elec- tric shock, fire and/or serious personal injury. SAVE THESE INSTRUCTIONS Work Area ■ Keep your work area clean and well lit. Cluttered benches and dark areas invite accidents.
  • Page 5 ■ Make sure that the guard is in good condition and securely installed before operating grinder. ■ Do not clamp the grinder in a vise or use as a fixed grinder. ■ Never turn on the grinder with the grinding wheel or any rotating parts touching the workpiece.

  • Page 6: Rules For Safe Operation

    Run wire brush at operating speed for at least one minute before applying to workpiece. Never stand in line with the brush. Always use guard on grinder with wire wheel brush accessory. Failure to heed this warn- ing can result in serious personal injury.

  • Page 7: Extension Cords

    ELECTRICAL ELECTRICAL CONNECTION Your grinder has a precision built electric motor. It should be connected to a power supply that is 120 volts, 60Hz, AC only (normal household current). Do not operate this tool on direct current (DC).

  • Page 8: Know Your Angle Grinder

    Switch with Lock-on Feature Your grinder has a conveniently located switch. It also has a lock-on feature that allows the grinder to be locked in the on position when continuous operation for extended periods of time is required.

  • Page 9: Assembly

    WARNING: Failure to unplug your grinder could result in accidental starting causing serious injury. ■ Your grinder is shipped with the disc flange and clamp nut attached to the spindle. ■ Depress spindle lock button and rotate clamp nut until spindle locks.

  • Page 10: Adjustments

    Figures 4-6 show correct and incorrect locations of the guard. WARNING: Never place the guard so that it is on front of the grinder as shown in figure 6. This could result in serious injury because sparks and loose particles thrown from the grinding wheel would be directed toward the operator.
  • Page 11 Gradually lower grinder until the grinding wheel contacts the workpiece. For best results keep the grinder tilted at an angle from 5 to 15 degrees and continuously moving at a steady, consistent pace. Move the grinder back and forth or up and down over the work area.

  • Page 12: Maintenance

    Refer to "INSTALLING THE ACCESSORY WHEELS" instructions on page 9. ■ Securely tighten the clamp nut with the wrench pro- vided. WARNING: When servicing use only identical Ryobi replacement parts. Use of any other parts may create a hazard or cause product damage. LOOSEN DISC...

  • Page 13: Maintenance

    GENERAL Avoid using solvents when cleaning plastic parts. Most plastics are susceptible to damage from various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, carbon dust, etc. WARNING: Do not at any time let brake fluids, gasoline, petroleum- based products, penetrating oils, etc.

  • Page 14: Parts Ordering / Service

    Ryobi Authorized Service Center. Be sure to provide all pertinent facts when you call or visit. Please call 1-800-525-2579 for your nearest Ryobi Authorized Service Center. You can also check our web site at www.ryobitools.com for a complete list of Authorized Service Centers.

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