Table of Contents
Advertisement
6-6-2. Adjusting intensity of the thread take up spring
(1) Insert the screw driver into the slit of the adjusting shaft (No.1) and turn it to the counterclockwise. The
adjusting bushing (No.2) come to loose.
NOTE To prevent the deforming or breaking of the adjusting shaft (No.1), loosen the adjusting nut until
the adjusting shaft end before operating above.
(2) Turn the adjusting busing (No.2) to adjust the thread take up spring intensity. When turn it to clockwise,
the thread take up spring tension becomes tight, and when turn it to counterclockwise, the thread take
up spring tension becomes loose.
(3) The standard tension is approximately 2.5 N. To obtain the standard tension, loosen the adjust bushing
(No.2) and reduce the tension of take-up spring to 0 then, tighten the adjust bushing (No.2) from that
position.
<2>
6-7. Adjustment of the air pressure
★If the secondary side air pressure is set too high, trouble such as operation faults may occur. Always
set the pressure to within 0.4Mpa.
(1) Air pressure is provided from an air source. Lift and turn the air regulator's adjustment knob (No.1)
located under the table to adjust the air pressure.
(2) If turn the adjusting knob (No.1) to the clockwise, the air pressure is increased.
(3) If turn the adjusting knob (No.1) to counter clockwise, the air pressure is decreased.
(4) 0.4Mpa (4kgf/cm2) is the standard air pressure as a normal sewing operation.
<1>
<1>: Adjusting shaft
<3>
<2>: Adjusting bushing
<3>: Adjusting nut
<4>: Thread take up spring unit
CAUTION
<1>
<1>: Adjusting knob
<2>: Air regulator
<2>
- 27 -
Advertisement
Table of Contents
