JUKI MOL-254 Engineer's Manual page 105

Adjustment Procedures
1. Turn ON the power and supply air to the machine.
2. Pressing the standard screen key, press ten key "0" to
enter the adjustment screen.
3. Make "BK" screen flashing with the cursor key, input ten
key 8, and further press the screen change-over key to
enter the check program screen.
4. Input 5 with ten key and the state of the loop clamp lever
loop existencse sensor is displayed ON/OFF.
5. Loosen fixing screws
6. Press No. 6 button of the solenoid valve on the device
side and adjust the loop clamp detector plate
position where the display of state changes over from OFF
to ON and further the display of state continues to be OFF
when a piece of board of 1 mm in thickness is inserted.
Then, fix the detector plate.
(Caution) When pressing No. 6 button of the solenoid
valve, the loop clamp lever works. Do not place
your hand or the like under the loop clamp
lever.
(Caution) Even when moving the loop clamp lever by
hand to adjust the loop clamp detector plate
without supplying air to the machine, the lever
may not work since the move of the lever is
different from the actual move of the lever. Be
sure to check through the aforementioned
adjustment procedure.
in the loop clamp detector plate.
98
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Results of Improper Adjustment
○ If the installing position of the
sensor slit is improper, the
sensor cannot judge whether or
not the belt loop is clamped and
the clamp action continues in
repition even if there is a belt
loop or the action continues even
if there is no belt loop.
to the