– 11 –
1) The feed dog is factory-adjusted so that it juts out
from the throat plate surface 0.75 mm to 0.85 mm
(0.95 mm to 1.05 mm for DDL-8100eH) .
2) If the feed dog juts out too much, puckering may
result when sewing light-weight materials.
(Recommended protrusion : 0.7 mm to 0.8 mm)
3) To adjust the height of the feed dog :
1
Loosen screw
2
of crank
1
.
2
Move the feed bar up or down to make adjust-
ment.
3
Securely tighten screw
2
.
If the clamping pressure is insufcient,
the forked portion will wear out.
19. HEIGHT OF THE FEED DOG
a
Feed dog
b
Throat plate
0.75 to 0.85 mm
0.95 to 1.05 mm
b
b
1) The standard tilt (horizontal) of the feed dog is
obtained when marker dot
A
on the feed bar
shaft is aligned with marker dot
B
on feed rocker
1
. (DDL-8100eH, the marker dot
B
inclines for
-
ward the feed rocker shaft by 90°, as standard).
2) To tilt the feed dog with its front up in order to pre-
vent puckering, loosen the setscrew, and turn the
feed bar shaft 90° in the direction of the arrow,
using a screwdriver.
3) To tilt the feed dog with its front down in order to
prevent uneven material feed, turn the feed bar
shaft 90° in the opposite direction from the arrow.
(The standard tilt for DDL-8100eH.)
Whenever the feed dog tilt is adjusted,
the feed dog height will be changed.
So, it is necessary to check the height
after tilt adjustment.
20. TILT OF THE FEED DOG
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the
machine and check to be sure that the motor has totally stopped rotating in prior.
a
Front up
b
Standard
c
Front down
d
Throat plate
WARNING :
To avoid possible personal injury due to abrupt start of the machine, turn off the power to the
machine and check to be sure that the motor has totally stopped rotating in prior.
1
2
a
a
DDL-8100e
DDL-8100eH
1
A
B
a
b
c
d
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