JUKI LK-1900BN, Instruction Manual

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3-3. Adjustment of the pressure of the work clamp unit
The pressure of the work clamp unit should be minimized as long as the material does not warp during
sewing. Loosen adjusting screw
❶ and turn adjusting screw ❷ to obtain the aforementioned pressure.
3-4. Setting of the material closing operation
1) The material closing operation is performed by the electromagnetic solenoid, and change-over of the
operation setting (effective / ineffective) is available. The material closing has been set to work simul-
taneously with sewing at the time of delivery.
2) If the material closing is not performed, the change-over is made by the memory switch. For the way
of operation, refer to item "I.8. HOW TO USE THE MEMORY SWITCH" p.56 described in the in-
struction manual for the LK-1900BN.
◎ List of memory switch functions
※
Setting range “ ” : The material closing simultaneously works when the work clamp foot comes
down.
Setting range “ ” : The material closing simultaneously works with the sewing after the work
clamp foot has come down.
※ As for the contents of memory switch function Nos. other than memory switch No. 50, refer to the "I.8-2.
List of the memory switch functions" p.57
described in the Instruction Manual for the LK-1900BN.
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
No.
U050
Function
Setting of material
closing operation
Setting range
: Ineffective
: Synchronized with work clamp foot
: Synchronized with start
State at time of delivery
❶
❷