Kegel FLEX 17-5801 Operator's Manual page 111

DEFAULT # OF LANES ON ROLL is used to trigger the "Almost
Out of Cloth Warning" that pops up in the HOME screen.
When replacing a roll of cloth try not to wrap any more on the
take-up reel than needed, it is easy to waste 10 lanes worth of
cloth by making extra wraps.
The Duster Warning (to the right) comes up when there is only
enough cloth left to run your center. The Warning is not a fatal
error just a reminder to check the roll.
While in the duster screen press CHANGING CLOTH? PRESS
HERE and the button will change and the cloth counter will be
reset.
If you press this button and reset the counter when it is not time
yet, simply adjust the Present Unwind Time to unwind the
proper amount of cloth.
The duster error is generated when the present unwind time
reaches 25, which it should never reach. The only way to see this
error is to forget to reset the cloth after changing out the roll or if
you put half a roll of cloth back in the machine and guess too high
for the present unwind time.
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When the duster cloth is allowed to count down to 'zero'
and is not reset, the GO TO STARTING LANE button will
change to DUSTER NEEDS RESET (screen on left) the next
time that the machine is turned on to be started. This will
force the operator to the DUSTER SETTING menu where the
cloth can be reset so that none is wasted.
If the DUSTER UNWIND LIMIT screen is ignored, and the
unwind time has reached 0 (zero), the home screen will
change to DUSTER NEEDS RESET in place of START MACHINE.
When this happens, you will need to press this button and will
be directed DUSTER SETTINGS screen and reset the number
of lanes in the cloth.