JUKI MEB-3200 Engineer's Manual page 27

Adjustment Procedures
Adjusting the inclination of the knife holder
1. Loosen three setscrews 1 in the cloth cutting metal.
2. Move cloth cutting metal 2 as the arrow mark "a" and adjust so
that knife holder 3 in terms of the cloth cutting knife is parallel.
(Caution) When performing adjustment of the inclination of
the knife holder, backlash of cloth cutting direct drive gear
5 and cloth cutting direct drive shaft 4 changes. Perform
the adjustment of the backlash of cloth cutting direct drive
gear 5 and cloth cutting direct drive shaft 4 as well.
Adjusting the backlash of the cloth cutting direct drive shaft
1. Loosen threee setscrews 1 in the cloth cutting metal.
2. Move cloth cutting metal 2 in the direction of the arrow mark
"b" and adjust the backlash. (Adjust the play amount of the
backlash to 0.2 to 0.3 mm when holding cloth cutting knife
installing base 6 and moving it in the direction of the arrow
mark "c".)
(Caution) 1. When the backlash of the cloth cutting direct
drive shaft 4 has been performed, the lateral
position of the knife holder may change.
Perform the adjustment of "(12) - 2) Adjusting
the lateral position of the knife holder" as well.
2. Note that there are new and old knife installing
bases 6.
Results of Improper Adjustment
When the knife holder tilts :
™ Cutting the cloth at a given
length cannot be performed.
™ The hole of knife holder comes
in contact with the knife, and the
cloth on the part cannot be cut.
™ The hole of knife holder comes
in contact with the knife, and
cloth waste cannot be collected.
When the backlash is excessively
small :
™ Step-out of the cloth cutting
stepping motor occurs.
When the backlash is excessively
large :
™ Cloth cutting failure occurs.
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