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 Perform Pre-Start Check:
- Visually inspect the equipment for wear or damage.
- Be sure all guards are in place and functioning properly. Do not operate unless all guards are in place and secure.
- Perform all daily maintenance.
- Check to be sure water tubes are functioning properly if performing wet-grinding operations.
- Inspect accessories - Be sure the correct accessory is installed properly on the machine mounting arrangement and
its intended use.
- Check accessories for damage (see fi gure 6, below), the type of wear or damage will vary with the type if accessory.
- Inspect work area to determine the presence and location of deck inserts, pipes, columns and objects protruding from
the slab surface so that they may be avoided during the grinding operation.
- FOR WET GRINDING: Attach the water supply. A flow rate of approximately 1/2 gallon per minute is recommended
 OPERATING INSTRUCTIONS:
- BEFORE STARTING THE ENGINE: Raise the front of the machine clear of the working surface.
- START ENGINE AND ALLOW IT TO REACH OPERATING SPEED. Position the grinder at the starting point.
Bring the engine to full speed. Lower the machine onto the slab surface. Use a slow sweeping motion from
left to right and back continously, and do not force the machine into the work, the engine or motor should
not strain when grinding.
- WHEN WET GRINDING: Water is required. Attach the water hose to the water hook-up valve. Use the valve to
control the fl ow of water.
- FOR DRY GRINDING: Provide a respirator and dust control system.
- FOR GASOLINE MODELS: Put the engine stop switch in the “RUN” position. Consult the engine manufacturers
operating instructions and follow the directions for starting and breaking in the engine.
- TO STOP THE MACHINE: Stop forward motion. On gasoline models push the throttle to idle. Turn ignition
or power switch off and let the engine come to a complete stop. Turn off the water supply.
- WHEN MANEUVERING THE GRINDER: Tilt grinder back enough so it does not strike the slab surface. Damage
to accessories may occur with inadvertent contact with the slab.
- DO NOT FORCE GRINDER WHILE GRINDING.
- IF THE POWER SOURCE FAILS: Raise the grinder off of the fl oor. Disconnect the power source (i.e. the
spark plug wire on a gasoline engine). Inspect the accessories for damage. Replace damaged (or questionable)
accessories immediately.
- WHEN TRANSPORTING THE GRINDER: Disconnect the power source before lifting or removing any guard.
- WHEN HOISTING OR LIFTING A GRINDER: Always inspect frame and attaching hardware for damage
before lifting. Use proper safe hoisting and lifting techniques and hardware.
SMI Dust and Silica Warning
Grinding/cutting/drilling of masonry, concrete, metal and other materials can generate dust, mists and fumes containing
chemicals known to cause serious or fatal injury or illness, such as respiratory disease, cancer, birth defects or other
reproductive harm. If you are unfamiliar with the risks associated with the particular process and/or material being
cut or the composition of the tool being used, review the material safety data sheets and/or consult your employer,
the manufacturers/suppliers, governmental agencies such as OSHA and NIOSH and other sources on hazardous
materials. California and some other authorities, for instance, have published lists of substances known to cause
cancer, reproductive toxicity, or other harmful effects.
Control dust, mist and fumes at the source where possible. In this regard use good work practices and follow the recommendations of the manufacturers/suppliers, OSHA/NIOSH, and occupational and trade associations. Water should
be used for dust suppression when wet grinding/cutting/drilling is feasible. When the hazards from inhalation of dust,
mists and fumes cannot be eliminated, the operator and any bystanders should always wear a respirator approved
by NIOSH/MSHA for the material being used.
Grinding/cutting/drilling of masonry, concrete and other materials with silica in their composition may give off dust or
mists containing crystalline silica. Silica is a basic component of sand, quartz, brick clay, granite and numerous
other minerals and rocks. Repeated and/or substantial inhalation of airborne crystalline silica can cause serious or
fatal respiratory diseases, including silicosis. In addition, California and some other authorities have listed respirable
crystalline silica as a substance known to cause cancer. When grinding/cutting/drilling such materials, always follow
the respiratory precautions mentioned above.
Operator's Instruction Manual
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