OPERATOR’S!MANUAL!!
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• To prevent damage to the grinder 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 tooling plates carefully before installing. Do not use any tooling
plates that exhibit signs of damage, as severe personal injury or damage to
the equipment could result.
• NEVER leave WerkMaster machines running unattended>!!
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• 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.
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• 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
All WerkMaster machines are outfitted with an X4 variable frequency drive (VFD)
that allows the desired grinding speed to be selected. Along with controlling the
speed of the machine, X4 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
• Load display
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WerkMaster machines come with a variety of different plug configurations. The
following table lists the plugs that are typically used.
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