ERICO Standard Bar Threader - Manual (Page 17)

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The thread profile should be checked with a brand new chaser. To check the length of the thread, slide the bar end gauge
over the bar and look to see if the end of the bar falls within
the step range of the gauge.
Checking Threads and Bar End Engagement
NOTE: More detailed thread inspection procedures
can be found in the LENTON
® product document:
Bar Fabrication Procedures (PDF118).
If the length of the thread is off in step 2, the adjustment
screw below the motor is used to make up the difference.
Turning it in (counter-clockwise), makes the thread longer;
turning it out (clockwise), makes the thread shorter.
If the length of the thread is off, the proper adjustment can
easily be made by measuring the amount of protrusion from
or recession into the gauge.
Example: If the bar is protruding beyond the gauge by
1/8 inch you would turn the adjustment screw in (clockwise)
so that the machine body would move forward 1/8 inch.
If the bar was 1/8 inch too short you would turn the screw
out (counter-clockwise) moving the body of the machine
back 1/8 inch.
A scrap piece of bar should be used to set the bar end
gauge prior to making a production run.
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