9 Adjusting the automatic gear change of the minimum airflow

Use the performance profile to adjust the cutoff point for the minimum airflow of extractors. First of all, find out the minimal airflow that ensures

agood operation of the dust-producing system. Mark this value on the x- axis, then draw a vertical line from here to the curve. Now draw a line parallel to the x-axis from the point of intersection to the y-axis. This value describes the vacuum that has to be adjusted at the vacuum switch when the minimal airflow is no longer sufficient.

When adjusting the vacuum, you have to connect an appropriate measuring device parallel to the vacuum switch. Throttle the airflow at the suction inlet until the required value is reached. Now calibrate the cutoff point by the adjusting screw of the vacuum switch.

When the minimal airflow falls short, the following happens after a few seconds:

-the red warning light flashes up.

-the floating contact in the switch housing switches. This contact (6 A at

a

voltage of 230 V, AC11) manages the connection of the control circuit of

the dust-producing system to the extractor or to control an external optical or acoustical signal.

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Nilfisk-Advance America GB 1133 instruction manual Adjusting the automatic gear change of the minimum airflow

GB 1133 specifications

The Nilfisk-Advance America GB 1133 is a powerful and efficient scrubber dryer designed specifically for demanding cleaning tasks in a variety of environments. Its robust design makes it suitable for both small and large surfaces, offering unparalleled performance in commercial cleaning applications.

One of the outstanding features of the GB 1133 is its compact size, which allows for exceptional maneuverability even in tight spaces. Despite its smaller footprint, it boasts a high capacity for cleaning, enabling users to cover large areas without sacrificing performance. The 13-gallon solution tank and recovery tank capacity ensure that operators can work for extended periods before needing to stop for refills.

This scrubber dryer is equipped with advanced scrub technology, which utilizes dual cylindrical brush action to deliver a superior clean. These brushes not only scrub the floor effectively but also lift dirt and debris, resulting in better surface maintenance. The variable brush pressure feature allows users to adjust the intensity of scrubbing based on the type of flooring being cleaned, offering versatility for different surfaces, including tile, vinyl, and concrete.

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User-friendly controls on the GB 1133 enhance the overall operating experience. An intuitive dashboard provides easy access to all functions, allowing operators to adjust settings with minimal effort. Safety features, such as automatic water shut-off when the solution tank is empty, help to prevent potential damage and ensure safe operation.

In summary, the Nilfisk-Advance America GB 1133 is a versatile scrubber dryer with powerful cleaning capabilities, innovative technologies, and an emphasis on user-friendly operation. Its compact design, advanced scrubbing technology, and eco-friendly options make it an excellent choice for various cleaning applications, delivering efficiency and effectiveness in maintaining clean and hygienic environments. Whether in retail spaces, schools, or healthcare facilities, the GB 1133 stands out for its reliable performance and ease of use.