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6) Air pressure-related parts and functions (thread trimming type)
A. Installation
a) Use a screw to fix the pneumatic unit
①
onto the lower side of the table as illustrated in the Fig.
b) Connect five pneumatic tubes from right to left as shown in the Fig. Tie the tube with other lead lines using band clip
②
.
Automatic presser foot-lifting cylinder
S1P
S2P
S5S
S3L
S3R
CylinderLabel mark
Reverse sewing cylinder
Conversion cylinder of
lifting amount of presser foot
Conversion cylinder for stitch length
[ Fig. 7 ]
①
②
Function
Converts the lifting amount of the main and auxiliary
presser foot to the maximum 7 mm in an instant
Performs reverse sewing
Raises the presser foot to as high as 16 mm off the
surface of needle plate
Performs sewing in accordance with the settings of the
lower stitch length dial when this particular cylinder
begins to run among two stitch length dials of the
machine
Caution
▶When it becomes necessary to regulate the machine with the power on or with the air injected,
exercise extreme caution for safety.
▶Set the air pressure at 0.5 Mpa.
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