"#$%!)!!
• Be sure all safety decals on the machine may be clearly read and understood.
Replace damaged or missing decals immediately.
• Maintain WerkMaster machines in safe operating condition with all guards in
place and secure, all mechanical fasteners tight, all controls in working order,
and the grinder configured for the job application, whether concrete, natural
stone, wood or other surfaces.
• To prevent damage to your machine or severe personal injury, avoid
protruding slab inserts, nails, screws, Hilti anchors, rebar, embedded bolts or
any other debris, pipe extensions, machinery bases, or any objects that
transmit sudden shock to the grinding assembly.
• Inspect the discs carefully before installing. DO NOT use any discs that exhibit
signs of damage, as severe personal injury or damage to the equipment
could result.
• NEVER leave WerkMaster machines running unattended.
• Risk of Explosion: Floor sanding can result in an explosive mixture of fine dust
and air. Use floor-sanding machine only in well-ventilated area free from any
flame or match.
• DO NOT modify WerkMaster machines. Modifications will void the warranty
and may result in injury to persons and damage to the machine.
POWER AND CONNECTIVITY
WerkMaster machines are outfitted with a variable-frequency drive (VFD) that
allows the desired grinding speed to be selected. Along with controlling the
speed of the machine, the VFD features include the following:
• Undervoltage protection (damages most single-phase motors)
• Overcurrent protection (prevents nuisance breaker tripping)
• 60 Hz and 50 Hz capability (international)
• Wide voltage range (200–230V +/- 15% for 230V models;
380–460V +/- 15% for 460V models)
• Soft start (smaller generator requirements)
• Monitor pad speed display
• Auto disabled if ON when plugged in'!
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NEVER open the VFD panel while plugged in or immediately after
unplugging the power cord. Severe injury or death may result.
WerkMaster machines come with a variety of different plug configurations. The
following table lists the plugs that are typically used.
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