– 34 –
Adjustment Procedure
Results of Improper Adjustment
4) Adjustment of normal/reverse stitching
1. Pinch a piece of paper beneath the presser hardware and set
the feed dial graduation at 3.
2. Remove the window plate (6 pcs.) of the sewing machine.
3.
Loosen a feed adjusting pin setscrew
❶
. Using a 10mm hexa
-
gon head spanner, turn the feed adjusting pin
❷
for forward/
reverse adjustments.
4.
By turning the flywheel by hand in forward direction, confirm
that the normal and reverse pitches coincide with each other.
5.
When coincidence is confirmed, tighten the one feed adjust pin
setscrews
❶
.
5) Adjustment of Feed 0
Method by removing the gear box cover (standard adjustment)
*
Set the chamfered section
❸
of the feed adjusting pin
❷
on
the bed side. (See the drawing at left.)
（
1
）
Set the feed dial graduation at 0.
（
2
）
Remove the gear box cover.
（
3
）
Loosen three setscrews
❺
of the auto-reverse feed solenoid
❹
and remove this auto-reverse feed solenoid
❹
.
（
4
）
Loosen the feed changing arm B setscrew
❻
.
（
5
）
Adjust the feed adjusting link A
❼
and the feed adjusting link
B
❽
so that they are aligned in a straight line. Tighten them
with the feed changing arm B setscrew
❻
.
（
6
）
Pinch a piece of paper beneath the presser hardware and
turn the flywheel by hand in forward direction to see that the
paper is not fed.
（
7
）
Tighten three setscrews
❺
of the automatic reverse feed so-
lenoid
❹
.
Refer to [3.-(9)-7) Installation of the reverse feed arm and the
reverse feed solenoid.]
○
The chamfered section
❸
of the
feed adjusting pin
❷
should be
adjusted on the bed side.
○
Under the condition that the feed
adjust pin
❷
is pressed, tighten
the one feed adjust pin set-
screws
❶
. Pay attention so that
there is no presence of thrust
rattling.
○
When normal/reverse stitching
is adjusted, the feed 0 position
begins to shift slightly.
○
Adjustment of the feed 0 position
results in slight displacement of
normal/reverse stitching.
