Adjusting The Wiper - JUKI DLN-6390 Manual De Instrucciones

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Pedal operation

5. Adjusting the wiper

C
A
B
C
D
E
0.5 to 1.5
A
B
(1) The pedal is operated in the following four steps :
1) The machine runs at low sewing speed when you light-
ly depress the front part of the pedal. B
2) The machine runs at high sewing speed when you
further depress the front part of the pedal. A
3) The machine stops (with its needle up or down) when
you reset the pedal to its original position. C
4) The machine trims threads when you fully depress the
back part of the pedal. E
5) The presser foot goes up when you lightly depress the
back part of the pedal D, and if you further depress the
back part, the thread trimmer is actuated.
The machine will perform normal thread trimming even
if you depress the back part of the pedal immediately
following high or low speed sewing.
The machine will completely perforrn thread trim-
ming even if you reset the pedal to its neutral position
immediately after the machine started thread trimming
action.
Adjust the wiper as follows when it is necessary to adjust it.
1) Turn the handwheel in the normal direction of rotation
to align white marker dot ❶ engraved on the hand-
wheel with pointer ❷ on the machine arm.
2) Loosen nut ❸ , move wiper ❹ and adjust the distance
between the wiper and needle ❺ to –0.5 to 0.5 mm for
the adjustment of longitudinal direction A.
* After the adjustment, securely tighten nut ❸ .
(Tightening torque : 3 to 5 N·m)
(Note that the screw should face front.)
3) For adjusting vertical direction B, loosen screws ❻
and adjust the distance from top end of needle to 1.5 to
2.5 mm.
4) For adjusting protruding amount C, loosen screw ❼
and adjust the distance from needle to 0.5 to 1.5 mm.
* After the adjustment, securely tighten screws ❻ .
(Tightening torque : 3 to 4 N·m)
* Check that the top end of the wiper does not come in
contact with the presser and the finger guard when the
wiper is in operation.
– 30 –

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Dln-6390-7

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