27
[ Fig. 41 ]
B. Height Adjustment of Presser Bar
Adjust the presser bar that end of presser bar should
come out about 17mm from presser bar handle and
check if the needle passes through center of presser
bar.If checking ends, fasten joint screw
①
.
Presser
Bar
Presser Foot
Presser
Bar Holder
a) Unscrew location link stopper screw to make space between location link stopper
④
and fixing stud screw of
presser foot motion link
③
.
b) After unscrewing fork link joint screw
①
and placing stud screw of presser foot link to the right side of presser
foot adjusting arm, fasten stud screw
②
of presser foot link tightly.
c) Place the needle bar to the lowest point by turning the hand pulley.
d) Raise the presser bar so that the distance between presser bar handle and presser bar bush is to be 4mm and
fasten the joint screw
①
of fork link tightly.
e) Adjust so that location link stopper
④
and fixing stud screw of presser foot motion link
③
get close by turning
stopper screw of location link.
f) After fastening fork link joint screw
①
tightly, check if there is play to vertical direction in presser foot adjusting
arm. Checking fastening status of screws, adjust presser foot stroke.
C. Adjustment of Presser Foot Adjusting Arm
Presser Foot Adjusting Arm
①
④
③
9mm
Presser Bar Bush
Presser Bar Holder
②
[ Fig. 42 ]
①
Fasten joint screw ① of presser bar
with the pressure about 40∼45kgf/cm².
If connection pressure is excessive,
it becomes cause of deformation of
presser bar and cause trouble to
machine operation.
Caution
If there is space between presser bar handle and presser bar bush, interference and noise is
occurring during machine operation, screws are not fastened tightly after adjustment; it can cause
breakage during operation.
Caution
If fixing stud screw ③ of presser foot motion link and end of the location link stopper ④
did not get perfectly close, trembling phenomenon occurs during operation and noise can
increase.
Caution
Summary of Contents for SPS/ D-B1254 Series
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