Check for proper dustube suspension. The recommended dustube setting at installation is indicated in the following
chart. Measure along the seam side.
Length of Tube
*Zero Slack is a subjective specification. It is a condition reached when a bag (with cuff already installed in the cell
plate) is lifted by the top without undue force or stretch until the upright and the portion of the bag within 6" of the cell
plate is fairly free from folds or wrinkles.
An objective specification is the use of a Spring Scale to "lift" a
few bags to the prescribed tension in order to judge the desired
condition. The recommended tensions are for clean dustubes, any
If tube is accidentally too taut, see figure 16, which illustrates how it is
possible to lower bag. The thumb and forefinger can be used to pull the
other end of the strap backward through the assembly, and when re-
leased, a tug on the bag will take out the slack in the strap.
To adjust tension of a loop-top tube, loosen both nuts on the tube hook and
raise or lower the hook position on the shaker channel to get the desired
slack, and tighten the nuts again. Do not use too much force when
tightening the nuts.
Pulling strap backward to lower
INCORRECT: Any of the following conditions indicate improper installation.
Bag tops suspended with seams turned every which way. Bags hung on crooked or bent hooks. Bags hanging in a