ASSEMBLY INSTRUCTIONS/OPERATIONS

Operation

THEORY OF OPERATION

The SFG10E SURFACE GRINDERS operate on the principle of various multi-accessory attachments being utilized at rotational speeds to make direct contact with a work surface. Various types of multi-accessory attachments are secured to a recess provided in the rotating, aluminum disc located on the bottom of the machine. The specific type of multi-accessory attachment utilized during the grinding process directly affects the type of material removed, the material removal rate and the resulting flatness and smoothness of the surface.

The grinding process is directly controlled by these conditions:

1)The use of a suitable mechanism (multi-accessory attachment) of proper design and configuration to grind the work surface and remove material while delivering acceptable service life.

2)Sufficient static weight supporting the multi- accessory attachment to allow it to effectively penetrate the work surface and remove material.

3)Adequate horsepower capable of propelling the multi- accessory attachment against the work surface to deliver acceptable productivity rates.

Since no two materials are exactly alike, no two work surface materials can be penetrated and removed by the exact same method. The nature of the grinding process, along with operator experience, skill and common sense, would suggest that efficient and productive material removal is a matter of trial and error. Combinations of multi-accessory attachment type, condition, and feed rate are direct factors that will also determine the overall success of the job application.

MULTI-ACCESSORY ATTACHMENTS AND APPLICATIONS

While individual multi-accessory attachment design and configuration may vary, basic operational characteristics are identical: impact upon a work surface material and remove a percentage of the material. This common operational characteristic has led to the development of the following popular multi-accessory attachments:

Grinding Stones

Grinding stones are available in a number of grades, including: C06 extra coarse, C10 coarse, C24 medium, C80 fine and C120 super fine grade. FIGURE 4. All stones incorporate silicon carbide as the abrasive medium and employ a clay binder as the matrix material. Vitrified type stones utilize an oven baking process that produces greater service life over other manufacturing processes. As the clay material wears away, it exposes new, sharp, edges of

the imbedded silicon carbide material. All stones have the identical 2" x 2" X 4" dimensions and are secured to the machine by the use of a plastic wedge.

FIGURE 4

The designation system for the grinding stones utilizes a system similarly utilized for most abrasive products: the larger the number, the finer the grain structure and usually, the smoother resulting finish.

a)The C06 and C10 coarse grade stones are the most popular utilized stones and result in maximum material removal rates.They are utilized for general grinding and the removal of trowel marks, high spots and rough sections on concrete surfaces.The average service life is approximately 4 to 10 hours.

b)The C24 medium grade stone will result in lower material removal rates. It is utilized for finer finish grinding of concrete and rough grinding on terrazzo and other types of stone floor configurations.The average service life is approximately 6 to 10 hours.

c)The C80 fine grade stone will result in still lower material removal rates. It is utilized for polishing concrete and medium grinding on terrazzo and other types of stone floor configurations with a water/slurry mixture only.The average service life is approximately 8 to 20 hours.

d)The C120 super fine grade stone will result in the lowest material removal rates. It is utilized for final polishing on terrazzo and other types of stone floor configurations with a water/slurry mixture only. The average service life is approximately 40 to 75 hours.

SFG10E ELECTRIC SURFACE GRINDER — OPERATION AND PARTS MANUAL — REV. #1 (07/16/07) — PAGE 13

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Stow SFG10E manual Theory of Operation, MULTI-ACCESSORY Attachments and Applications, Grinding Stones
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SFG10E specifications

The Stow SFG10E is a versatile and robust generator designed for various applications, making it an ideal solution for both commercial and residential use. Its compact size and durable construction cater to the need for reliable power in both urban and rural settings.

One of the main features of the SFG10E is its impressive power output. With a maximum output of 10 kVA, it is capable of handling several appliances and tools simultaneously, making it perfect for construction sites, outdoor events, and backup power for homes during outages. The generator is powered by a highly efficient diesel engine, providing enhanced fuel economy and extended run times, which is vital for users who require consistent power for extended periods.

The SFG10E is equipped with advanced technologies that enhance its performance and usability. Its automatic voltage regulation (AVR) ensures that the output voltage remains stable, protecting connected devices from voltage spikes and fluctuations that could cause damage. Additionally, the generator features an easy-to-read digital control panel, allowing users to monitor performance metrics such as voltage, frequency, and runtime at a glance.

Another characteristic that sets the SFG10E apart is its user-friendly design. It features a built-in fuel gauge, making it easy for users to monitor fuel levels and plan for refueling as needed. The compact and lightweight design ensures portability, making it easy to transport to different locations when required. Furthermore, the generator is designed with noise reduction in mind. Its sound-dampening technology minimizes operational noise, making it suitable for use in noise-sensitive environments.

Safety is also a priority in the design of the SFG10E. It includes several safety features such as low oil shutdown, overload protection, and an emergency stop function, providing peace of mind to users who depend on it for their power needs. Its rugged construction is further enhanced by weather-resistant materials, allowing it to withstand the elements, whether in sunny, rainy, or windy conditions.

In conclusion, the Stow SFG10E generator combines power, efficiency, and safety in a compact and portable design. With its advanced features and technologies, it stands out as a dependable choice for those needing reliable electricity in various environments, whether at home, on a job site, or while enjoying outdoor activities. Its emphasis on user-friendliness and safety makes it not just efficient but also easy to operate for users of all experience levels.
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