VARIABLE SPEED

CONTROL

The grinder is equipped with a variable speed control (B) Fig. 10. When the variable speed control knob is positioned to the furthermost left position (counter clockwise), the RPM is 2000. The rotation increases as the knob is turned clockwise. When the variable speed control knob is positioned to the furthermost right position (clockwise), the RPM is 3450.

FLEXIBLE LAMP

The flexible lamp operates independently of the grinder. To turn the lamp on and off, rotate switch (A) Fig. 11.

WARNING: To reduce the risk of fire, use 40 watt or less, 120 volt, reflector track type light bulb (not supplied). A standard household light bulb should not be used. The reflector track type light bulb should not extend below the lamp shade.

GRINDING WHEELS

WARNING: THE USE OF ACCESSORIES AND ATTACHMENTS NOT RECOMMENDED BY DELTA MAY RESULT IN RISK OF INJURIES. Attachments used with this grinder should be rated for 3600 RPM or higher and be 6" in diameter with a 1/2" arbor hole.

Two aluminum oxide grinding wheels are supplied with your grinder; one 36 grit and one 60 grit. For best grinding results, and to maintain good balance, always keep the wheels properly dressed. Do not force the work against a cold wheel. The grinding wheel should always be run at idle speed for one full minute before applying work. It is recommended that only balanced wheels be used with your grinder. The use of balanced wheels adds years to the life of the bearings on the grinder and by eliminating the most common source of vibration, more accurate work is accomplished. ALWAYS maintain a distance of 1/8" or less between the grinding wheel and the tool rest. Adjust the tool rests and spark guards as the grinding wheels decrease in size with use.

DRESSING A

GRINDING WHEEL

When dressing a grinding wheel, use a suitable silicone carbide stick type dresser or the wheel dresser provided with the grinder, as shown in Fig. 12. Bring the dresser forward on the tool rest until it just touches the high point on the face of the wheel and dress the wheel by moving the dresser back and forth. Repeat this operation until the face of the grinding wheel is clean and the corners of the wheels are square.

A

Fig. 11

Fig. 12

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Delta GR250 instruction manual Variable Speed Control, Flexible Lamp, Grinding Wheels, Dressing a Grinding Wheel
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GR250 specifications

The Delta GR250 is a versatile and robust entry in the world of industrial machinery, known for its blend of innovative technologies and user-friendly design. This machine is designed to meet the demanding needs of various sectors, including manufacturing, agriculture, and logistics.

At the heart of the Delta GR250 is its powerful engine, delivering impressive performance and efficiency. The advanced powertrain allows for smooth operation even in challenging environments, making it suitable for heavy-duty tasks. Its compact design does not compromise its strength; instead, it allows for maneuverability in tight spaces, a crucial advantage in busy work sites.

One of the standout features of the Delta GR250 is its cutting-edge automation technologies. Equipped with state-of-the-art sensors and intelligent control systems, the GR250 can perform tasks with remarkable precision while minimizing human intervention. This automation results in increased productivity as well as consistent quality in operations, which are essential in today’s competitive landscape.

The GR250 also incorporates advanced data analytics tools that provide real-time insights into machine performance. Operators can monitor metrics such as fuel efficiency, load weight, and operational hours to make informed decisions. This data-driven approach not only helps in optimizing operations but also plays a significant role in predictive maintenance, reducing downtime and operational costs.

In terms of user experience, the Delta GR250 features an ergonomic cabin designed for operator comfort. With adjustable seating, intuitive controls, and excellent visibility, operators can work longer hours effectively without fatigue. Further enhancing safety, the machine is equipped with multiple safety features, including load sensors and emergency stop systems, ensuring secure operation at all times.

The Delta GR250 stands out for its adaptability across various applications. Whether used in construction sites, agricultural fields, or warehousing, it offers the flexibility needed to handle different tasks. This versatility, combined with its reliability and efficient performance, makes the Delta GR250 a valuable asset for businesses looking to enhance productivity and streamline operations.

In summary, the Delta GR250 is a powerful machine that embodies the future of industrial equipment through its advanced technologies, user-centric design, and exceptional adaptability, making it a top choice for various industrial applications.
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