Adjusting The Disk Presser Pressure - JUKI PS-800-12080 Instruction Manual

4-16. Adjusting the disk presser pressure

❸ ❸
A A
B B
❷ ❷
❶ ❶
– 29 –
1) Adjust the disk presser air cylinder pressure regu-
lation valve ❶ . Pull up nut ❷ . Then, turn the nut
clockwise to increase the disk presser pressure
or turn it counterclockwise to decrease it. The
air pressure has been factory-set to 0.15 MPa at
the time of shipment. Adjust it appropriately while
checking the actual sewing state.
2) Adjust the lifting speed of disk presser air cylinder
by adjusting cylinder speed control valve ❸ that
is located outside the disk presser air cylinder.
3) Changing the disk presser
Check the actual sewing operation. Use the disk
presser or the plastic disk presser according to
the condition of actual sewing operation.
A Disk presser (factory-attached at the time of
shipment)
B Plastic disk presser
When changing the disk presser with the plastic
disk presser or vice versa, try to position the disk
presser so that its bottom surface is in parallel
with the hook cover. Adjust the height of the disk
presser according to the actual material thickness
(i.e., height) while taking care not to allow the disk
pressers to come in contact with the intermediate
presser.