38
8.2) Adjustment of Thread Guide on
Thread Adjusting Device
When the two tightening screws
②
are at the center of the
thread guide
①
on the thread adjusting device, this is a
standard position.
1) Loosen the tightening screw
②
and move the thread
guide
①
on the thread adjusting device left or right.
2) During stitching thin materials, move the thread tension
adjusting device thread guide
①
to the left side. (The
amount of thread at the thread take-up lever increases.)
3) During stitching heavy materials, move the thread
tension adjusting device thread guide
①
to the right
side. (The amount of thread at the thread take-up lever
decreases.)
8.3) Adjustment of Feed Dog Position.
8.3.1) Feed Dog Position When Stitch Length is 0
When stitch length is 0, the feed dog's feed is 0. In
this case, if the feed dog's feed is not 0, please
perform the follow setting.
1) Open the bed cover.
2) Loosen the horizontal crank fixing screw
①
and
turn the upper shaft pulley. Check if the switch
connection rod
②
moves, when the upper shaft
pulley is turned.
3) When the switch connection rod
②
moves, loosen
the switch connection crank fixing screw
③
and
adjust the angle of the switch by using the angle
adjusting hole of the switch
④
.
4) When the upper shaft pulley is turned and the
switch connection rod does not move, completely
fix all fixing screws.
8.3.2) Feed Dog Position on Needle Plate
When the stitch length is maximum, the feed dog
position
②
in the needle plate hole
①
should be
identical from the front (A) and back (B) on the
needle plate. The minimum figure is 0.7mm. If they
are not identical, please perform the follow setting.
1) Loosen the fixing screw
③
for the feed dog
supporting crank
④
.
2) Adjust the feed dog base
④
to set the distances of
(A) and (B). Completely fix the fixing screw
④
for the feed dog supporting crank.
①
②
③
Ⓐ
Ⓑ
④
0.7mm
[Fig. 8-3]
[Fig. 8-5]
1) In the case of wrong feed adjustment, stitch length could be different when moving forward and
backward.
2) Feed regulator should be fixed with feed regulator guide screw
⑤
not to move it in a direction of
arrow (X) because tight fixation can interfere with feed regulator’s operation.
Caution
①
②
④
[Fig. 8-4]
①
②
Summary of Contents for KM-1170BLX
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Page 14: ...14 Fig 4 5 Thread trimming ...
