ā 99 ā
(1) LZ-2290A*S
1) To adjust the height of the feed dog, loosen the
screw
1
and turn the feed driving link pin
2
us-
ing a screwdriver.
2) The standard height of the feed dog is 1.2 mm.
3) To adjust the inclination of the feed dog, loosen
the two screws
3
and turn the eccentric shaft in-
serting a screwdriver through the adjustment hole
in the machine bed.
4) For the machine with a thread trimmer, there can
be no space between the counter knife and the
underside of the feed dog when adjusting the feed
mechanism (change in height and timing) or using
a commercially-available feed dog. In this case,
place a feed bar spacer (part No. : 10025906) un-
der the feed mechanism and a throat plate spacer
(part No. : 22503908) under the throat plate so as
to secure a space between the counter knife and
the underside of the feed dog.
The standard inclination of the feed dog is obtained
by adjusting the feed dog so that it becomes horizon-
tal when it rises above the top surface of the throat
plate.
8-3. Adjusting the height of the presser bar
1) To change the height of the presser bar or the
inclination of the presser foot, loosen the presser
bar connection screw
1
and perform the adjust-
ment properly.
2) After the adjustment, securely tighten the screw.
8-4. Adjusting the micro-lifting mechanism of the presser foot
Some type of material needs to be sewn with the
presser foot slightly lifted. In this case, perform this
adjustment following the procedure described below.
1) Loosen the setscrew
1
in the presser foot micro-
lifter.
2) Turn the presser foot micro-lifting screw
2
clock-
wise through the hole in the face plate until the
presser foot is raised as desired. Then, tighten
the screw
1
.
WArNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
2
1
1
If you do not use the micro-lifting mechanism of the presser foot, fully return the presser foot
micro-lifting screw
2
to its home position.
The standard of lifting amount of the presser foot is as thick as a sheet of paper.
2
1
3
1.2mm
WArNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
8-5. Height and inclination of the feed dog
Throat plate spacer (part No. : 22503908)
Feed bar spacer (part No. : 10025906)
To secure a space
Counter knife
Feed dog
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