PROBLEM:
7. Stitch heads won't cycle.
8. Loud banging/clicking noise when stitch
heads cycle.
9. Double stitch.
10. Booklet folded but not stitched.
SOLUTION:
1. Make sure that Stitch on/off switch is in "on" position.
2. Check stitch clutch solenoid to see if it is activating when
triggered by the stitch gate microswitch (4LS):
a. If solenoid is activating and heads still don't cycle,
check stitch clutch shear pin. See page 13.
b. If solenoid is not activating, check the stitch clutch
connections. There should be 24VDC to the
solenoid when
it is triggered by 4LS. If the so-
lenoid fails to activate when 24VDC is applied,
replace the stitch clutch.
1. Lubricate head per the "External Lubrication Sheet" pro-
vided with the stitch heads. (Lubrication instructions also
appear in the EZ Thread Owners Manual.) Pay special
attention to the rotator lubrication.
1. Check stitch gate timer setting; see instructions on page
11. The gate should stay down until the tail end of the
book clears the stitch gate. Otherwise, turn clockwise.
2. Adjust cam for 3LS according to page 12.
3. Check for sluggish operation of stitch gate. If there
is
binding or the return spring is too strong, the gate will fail
to pull the stitch start limit switch, 4LS, away from the
paper causing repeat stitching.
4. Adjust the stitch clutch according to page 12.
1. Make sure that Stitch on/off switch is in "on" position.
2. Check that you are not feeding the books so fast that the
gate has not come back up to receive the next book in
time. In that case, adjust stitch gate timer setting per
instructions on page 11.
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