Walker Magnetics SMART-D SERIES - Manual (Page 7)

O.S. WALKER Co., Inc. SMART-D Control
SMART D MANUAL DD14511L Rev. L, March 30, 2011
2-2
2.2 Recognize Safety Information
This is the safety alert symbol. When you see this symbol on your magnet or in
this manual, be alert to the potential for personal injury. Follow recommended
precautions and safe operating practices at all times.
Red Background, White Letters
This indicates a situation in which a hazard is
imminent and will result in a high probability of
serious injury or death.
Orange Background, Black Letters
This indicates a potentially hazardous
situation, which could result in some
probability of serious injury or death.
Yellow Background, Black Letters
This indicates a potentially hazardous
situation, which could result in minor injury or
moderate injury.
These are
Hazard
Seriousness
Signal
Words
2.2.1 Ways to Avoid a Reduction of Holding Capacity
To avoid any reduction of holding capacity:
• The holding surface of the chuck and the contact area of the workpiece where it will
contact the chuck must be clean, smooth, flat, and free of nicks and burrs.
• The surface of the workpiece must contact equal areas of the chuck's opposite polarity,
major magnetic poles.
• The workpiece must be low carbon steel such as AISI 1020.
• The chuck control must provide "FULL" power to the chuck, that is, maximum output
voltage.
• The workpiece thickness must be at least equal or greater than the width of the chuck's
major magnetic poles.
• The temperature inside the chuck control enclosure must not be greater than 104°
Fahrenheit (40° Celsius), nor the temperature of the chuck must not be greater than 110°
F (43° C).
• Repair of this chuck control should only be done by the O. S. Walker Co.*
• If you have any difficulty holding a work piece, DON'T attempt to machine it! Call the O.S.
Walker Co. for advice at 1-800-962-4638.