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GENERAL SAFETY PRECAUTIONS
•Always wear protective clothing, including hard hat, eye protection, hearing protection,
and gloves.
•Avoid loose fitting clothing.
•Perform safety checks before starting each day.
•Always operate tool with solid footing and with both hands on the saw.
•Remove or control slurry to prevent slippery conditions while cutting.
•Be sure there are no obstructions (plumbing, electrical conduit, air ducts) and no
unnecessary people present.
•Set up a well-marked safety zone with a roped boundary and clear signs.
•Provide adequate ventilation when working in an enclosed area. Breathing exhaust gases is
dangerous.
•To avoid electrocution, check for live electrical wiring near cutting area.
A potential situation exists which, if not avoided, may result in product or
property damage.
Note: The concrete chain saw is equipped with a 2-cycle engine and must always be run using a mixture
of gasoline and Cutters Edge 2-cycle engine oil, or other high quality 2-cycle oil that has been formulated
for air cooled power equipment. It is important to accurately measure the amount of oil to be mixed to
ensure that the correct mixture is obtained. When mixing small amounts of fuel, even small inaccuracies
can drastically affect the ratio of the mixture.
•This engine is designed to be operated on premium unleaded gasoline.
•Use high quality, unleaded gasoline with a minimum octane rating of 90. If lower octane gasoline
is used, engine temperature will increase which can result in a piston seizure and damage to the
engine.
•Fuel mixture: 100:1 Cutters Edge or 25:1 petroleum based oil – gasoline/oil mixture. Incorrect
fuel mixture is the number one cause of piston seizure.
•Use Cutters Edge brand 2-cycle engine oil, or other high quality 2-cycle oil that has been
formulated for air cooled power equipment.
•Never use 2-cycle oil formulated for water-cooled 2-cycle engines, such as outboard motor oil.
•Never use motor oil intended for 4-stroke engines.
ENGINE BREAK-IN
•It is very important to break-in a new engine to “seat” all moving parts, especially the piston
rings.
•To break-in the engine, run one full tank of 100:1 fuel at idle, cycling the throttle every 5 to 10
minutes to prevent loading.
•Failure to break-in an engine may result in piston seizure.
