JUKI MOL-254 Engineer's Manual page 153

1. Turn OFF the power and expel air from the
machine.
2. Fix NC base A asm.
with screw . (See the figure on the left.)
3. Fix NC base B asm.
screw .
4. Loosen the fixing screw in the machine head
solenoid valve unit, separate the solenoid valve in
the direction of the arrow mark, and assemble the
solenoid valve for needle cooler.
(Assemble the solenoid valve in the first position.)
At this time, securely insert the rubber ring supplied
as accessory to the solenoid valve. Otherwise, air
leakage will result.
5. Put the stop plug on port B.
6. Connect the connector "VL15" from the solenoid
valve cable asm. to the solenoid valve for fullness.
7. Insert the air pipe into port A.
Cut the air pipe in a proper length and perform the
piping as shown in the figure on the left.
After performing the piping, fix air pipes with the
cable clip band so that they do not interfere with
the sewing.
8. Adjust the air volume of the speed controller.
146
− −
to wiper cylinder base
to machine arm with