JUKI MEB-3200 Engineer's Manual page 155

Adjustment Procedures
1. Cut off the air of the regulator.
2. Loosen setscrew ! 1 in the knife fixing plate and remove cloth
cutting knife (eyelet) 7.
3. Remove two setscrews 5 in the cylinder installing plate and
put cloth cutting cylinder 6 in the raised state.
4. Loosen two setscrews 1 and one setscrew 2 in the knife base,
and two setscrews !2 in the knife base key.
5. Return cloth cutting cylinder 6 to its home position, temporarily
tighten two setscrews 5 in the cylinder installing plate, and
supply the air of the regulator.
6. Move knife base 3 to the right and left as the arrow mark b
and adjust the inclination.
7. When the position is determined, fix two setscrews 1 in the
knife base.
8. Remove two setscrews 5 in the cylinder installing plate and
put cloth cutting cylinder 6 in the raised state. Then fix one
setscrew 2 in the knife base.
9. Return cloth cutting cylinder to its home position and fix two
setscrews 5 in the cylinder installing plate.
(Caution) When changing from the standard cloth cutting knife
to the multicutting device, install cloth cutting knife
(decorative buttonhole) 9 on knife installing base !0 , and
making this as the standard, adjust cloth cutting knife
(straight) 8 to cloth cutting knife (decorative buttonhole)
9 to comparatively perform the adjustment with ease.
Adjustment Procedures
1. Remove adjusting screw 3 in the knife base from knife base
4.
2. Turn adjusting screw 2 in the knife base and adjust so that the
cutting edge plane (plane Y) of cloth cutting knife (eyelet) 1 is
parallel to the installing plane (plane Z) of knife base 4.
3. Insert adjusting screw 3 in the knife base into knife base 4
and fix adjusting screw 2 in the knife base so that it does not
move.
(Caution) 1. When adjusting screw 2 in the knife base is
tightened, knife base B 5 is inclined in the
direction b.
2. When adjusting screw 2 in the knife base is
loosened, knife base B 5 is inclined in the
direction a.
3. When tightening adjusting screw 3 in the knife
base, adjusting screw 2 in the knife base moves
and the inclination of knife base B 5 may
change.
4. To check that plane Y and plane Z are parallel
to each other, cut the material which is actually
sewn and check the parallelism.
Results of Improper Adjustment
When the cloth cutting knife is
inclined :
™ In case of the cut-after knife,
™ In case of the cut-before knife,
Results of Improper Adjustment
When the cloth cutting knife (eyelet)
is inclined :
™ Eyelet section is not partially cut.
™ Cloth cutting knife (eyelet) may
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seams of eyelet section and
parallel section are cut.
seams of parallel section and
eyelet section are deformed.
be broken.