CHAPTER 2: COMMON ISSUES
QUICK LOAD SERVO 65/80
2-5
2. Time for clamping device to open
Once the clamping device open signal is output from the lathe the barfeed will wait for the time
entered in this parameter to expire then the push rod will advance the part the distance
programmed.
If this time is set to low then the push rod may hit the back of the clamping device before it is
physically open. This can cause a variation of unexpected results.
For further information on part feed out accuracy with special applications, please contact your
local LNS representative.
Cause Solution
1st Part feed out after top-cut
positioning too short/long
• Verify that the top-cut position is programmed correctly
• If performing a cut-off or facing operation on the bar stock
during top-cut, verify that the end of the bar stock is in the
same location as if a part was cut-off after the cut-off or facing
operation is complete.
Part feed out too short
• Verify that the correct value is entered into the “Input overall
part length” parameter
• If using a pull-to close type clamping system ensure that the
time entered into the “Time for clamping device to close”
parameter is correct.
• Make sure that the clamping device is not forcing the bar stock
back when closing
• Verify that the lathe program is correct
• Verify that the bar stock is concentric and clean of debris
Part feed out too long
• Verify that the correct value is entered into the “Input overall
part length” parameter
• If using a push-to-close type clamping system ensure the
turret is being used to locate the part and that the turret is in
the correct location
• Verify that the bar stock is concentric and clean of debris
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