DoAll C-4100NC, Instruction Manual

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44
NESTING FIXTURE (Continued....)
5. Apply as much coolant as possible while cutting.
6. Replace wear plates on the moveable vise jaw and
nesting fixture’s vertical clamping jaw when they
become worn.
7. Adjust the feed table’s vertical guide rollers to
keep the stack from collapsing when the vises are
unclamped.
8. Generally, reduced band speed and feed force are
necessary when sawing stacked materials. This
results in a lower cutting rate than possible when
sawing solid stock.
9. In some instances, increased production and blade
life may be obtained by nesting fewer pieces than
maximum vise capacity permits.
BAND TWIST INDICATOR
1. The Band Twist Indicator gives the operator a
graphic indication of the twist of the saw band from
a true cut (direction of twist and its approximate
magnitude).
• The Band Twist Transducer is mounted on the left
saw guide arm.
The Band Twist Indicator reduces width
capacity by two (2) inches (50.8 mm).
2. The unit presents both "MANUAL" and "AUTOMATIC"
operating options. In "MANUAL", it functions only as
a visual indicator. During "AUTOMATIC", the band
drive motor shuts off if the twist is greater than the
approximate predetermined amount.
3. If the indicator dot moves during cutting, this signifies
that something (dull or improper blade, overfeeding,
etc.) is causing the blade to twist. The operator
can see graphically the direction of twist and take
appropriate action to correct the problem before
several bad parts are produced.
Number in text refers to identical number on
illustration.
1. Two Green LED's indicate zero or the center of the
display. These LED's are always on.
2. Vertical line of Green LED's indicate the machine's
normal operating range. Only one at a time is
lighted.
3. Amber LED's indicate a caution region. These
LED's remain on and flash if there is a condition
which remains for a period of time (seconds). This
is intended to caution the operator that a potentially
out-of-range condition may occur and corrective
action should be taken.
Band Twist Indicator.
• The operator can still see the approximate magnitude
of the twist by observing the single amber LED which
is still lighted when the flashing LED's are off.
• If the machine is running with the
Man- Auto
selector
at "MANUAL", a situation could occur which causes
a deflection into the amber region. The operator is
able to correct the condition -- perhaps by reducing
feed force, etc. -- and the indicator will return to the
green region (the amber LED's will still be flashing
as a caution to the operator. These conditions are
remembered until the machine is turned off or the
Reset
button is pushed.
4. Two Red LED's (on side of the display at the top
and bottom) flash when the indicator moves beyond
the amber region. This indicates that the amber
region has been exceeded. Under this condition, the
operator does not know the approximate magnitude
of the error.
5. Red LED's at the extremes of the display are
unlighted when the deflection is reduced. This may
allow the operator to see what is happening as the
conditions change.
6. Zero control allows the operator to position the
display where desired. Normally this would be in
the center of the display as indicated by the two
Green LED's which are always on.