JUKI LB-6 Manuel D'utilisation page 86

(2) Binding the air tubes and cords
Bind the air tubes and cords with the spiral tubes and cable clip bands so that they do not interfere with the
moving parts such as V belt, motor, presser lifting lever, etc.
(3) Connecting the air source
1) Connect the air source with the adjustment knob of the air regulator with loosened.
Setting of the air pressure is excessive, damage will be given to the air cylinder or the like.
2) Adjusting the air regulator
Set the pressure to 0.5 MPa.
Tighten the adjustment knob of the air regulator to adjust the pressure.
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3) Confirming the air piping
1 Confirm the piping with the power OFF.
2 Confirm that thread tension release plate 1
fits in the upper thread tension disks.
3 Confirm that the intermediate latch recedes in
the throat plate.
If the reverse state of the description in
the Instruction Manual occurs, expel the
air once and change the connection of the
air tube.