How To Size Brushes For The Die-Hard Cableless Cleaner
Sizing your brushes correctly to the tubes being cleaned is a critical step in operating your Die-Hard Cableless Tube Cleaner. Its cleaning technique incorporates a unique design unlike any on the market today and will require your attention to use your Die-Hard to its full potential.
Improper brush selection will prevent the “scrubbing” action of the system and will not allow the feeding of the brush through the tube. Use a measuring device inside the tubes to determine the inside diameter of the tubes. Note: Measure the tubes at a point away from the expanded section of the tube. An Elliott Tube Gauge is recommended for this operation as it has an extended reach to enable this measurement to be taken at the appropriate location within the tube.
Select the brush diameter which is the closest to the measured tube ID. Note: Applies to both prime surface and internally enhanced tubes.
If no measuring device is available, use the following general brush sizing techniques:
For prime surface tubes and internally enhanced tubes, select a brush slightly smaller than the ID of the expanded portion of the tube. Insert the brush onto the Actuator before connecting the Actuator to the Auto-Feed Hose. Using your thumb and forefinger holding the Actuator, insert the brush into the tube past the rolled expanded area of the tube.
Now pull the brush out of the tube. Since the brush is larger than the ID of the tube the bristles are slightly laid over in one direction. When pulling out the Die-Hard brush, some resistance should be felt. Insert the next smaller brush size onto the Actuator and insert it into the tube past the rolled/expanded area. Repeat this process until no resistance is felt and the brush slides freely in and out of the tube. The correct brush size for cleaning is the smallest brush size in which resistance is felt. This is to ensure that the ends of the bristles are making contact with the tube wall, but not too large to restrict the feeding of the Auto-Feed Hose, and pulsing action of the Actuator.
Important: These brush sizing techniques are regarded as general and may vary depending on brush condition, tube deposit thickness, depth of internal enhancements, etc. Use only Elliott Die-Hard brushes. Do NOT select a brush with too large a diameter. This will impede the feeding of the Auto-Feed Hose, causing damage to its outer casing. If the Auto-Feed Hose feeds at a slower rate than its intended 3 ft/sec, try using the next brush size smaller in diameter.