Section 2
2-6
© Copyright 2009 GBC. All rights reserved.
Advanced Punch Service Manual
2.5 RAP Paper Jams at Punch, Chad is Not Present in
the Paper Path
2.5.1 RAP Description
The system is frequently exhibiting paper jams in the Punch Die or just after the
sheets are punched. This may be associated with an extra deep punch or an extra
shallow punch or holes punched at all.
2.5.2 RAP Initial Actions
Run several sheets to confirm the symptom.
Locate a different Die Set (any pattern).
Run several more sheets to confirm the symptom.
Take note of the punch cycle counts since the last Back Gauge replacement.
2.5.3 RAP References
Back gauge solenoid inspection and cleaning section
Back gauge Assembly section
2.5.4 RAP Procedure
1. Disconnect the system from the printer train to access the input side of the
punch. Inspect the back gauge solenoid area. Excessive chad build-up is
apparent.
Y- Perform the cleaning procedure explained in section
.
N- Go to the next step.
2. Inspect the back gauge solenoid area. One or more of the three springs is
broken or missing.
Y-Replace the missing spring as explained in section
N- Go to the next step.
3. Inspect the back gauge paddles, welds and over all mechanical action. The
Back Gauge has exceeded three (3) million punch cycles or the mechanisms
appear to be in poor working order when you depress the Solenoid plunger by
hand.
Y-Replace the Back gauge Assembly following section
.
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