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.
The best way to determine your brush size is by measuring the internal diameter (ID) of the tube. While there are several ways to determine the tube ID, a 3-point tube gauge will provide a more accurate measurement.
Simply insert the tube gauge into the tube and use the 3-point ball contact to obtain an accurate measurement. Note: It is important to place the tube gauge away from the expanded portion of the tube when taking your measurement. Once the tube has been measured, select the brush diameter that is the closest to the measured tube ID. This applies for both prime 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. Only Elliott Die-Hard brushes can be used with the Die-Hard system. Do NOT use a brush with too large a diameter. Improper brush selection will prevent the ìscrubbingî action of the system and will not allow the feeding of the brush through the tube.