– 31 –
Adjustment procedures
Results of Improper adjustment
o
In case of LU-2810-6, 2810-7, 2860-6, 2860-7, 2828-6, 2828-7,
2818-7, 2868-7
1. Set the stitch dial to the maximum.
2. Loosen clamping screw
❶
of the reverse feed connecting arm.
3. Adjust so that a play of top end
A
of the reverse feed control
lever
❷
is 1 ± 0.5 mm (LU-2828-6, 2828-7 : 7.5 to 8 mm). Then
tighten clamping screw
❶
of the reverse feed connecting arm.
o
In case of LU-2810, 2860
1. Set the stitch dial to the maximum.
2. Loosen clamping screw
❸
of the feed adjusting pin support
arm.
3. Turn the reverse feed lever shaft
❺
to adjust so that a clear-
ance between the reverse feed lever plate
❹
and the stopper
part
B
of machine arm is 0.1 to 0.5 mm. Then tighten clamping
screw
❸
of the feed adjusting pin support arm.
(Caution) Check that the reverse feed control lever
❷
does not
interfere with the machine bed or machine arm when
the stitch dial is set to the maximum.
When the position of the reverse
feed control lever
❷
is low :
o
Reverse feed lever plate
❹
interferes with the machine
arm and the stitch length of the
reverse feed stitching will be
decreased.
When the position of the reverse
feed control lever
❷
is high :
o
Reverse feed lever plate
❹
in-
terferes with the stopper part
B
of machine arm, or reverse feed
control lever
❷
interferes with
machine arm, and stitch length
of the normal feed stitching will
be decreased.
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